CN114357555A - Model display method, device, medium and server based on material transfer platform - Google Patents

Abstract

The application provides a model display method, a device, a medium and a server based on a material turnover platform, wherein the method comprises the following steps: acquiring a target equipment model, wherein the target equipment model is a three-dimensional model corresponding to target equipment and comprises a plurality of equipment part models; acquiring part model parameters, wherein the part model parameters comprise a part model identifier for revealing a target part model to be displayed, a part model view angle for revealing a reference display angle of the target part model, and a part model position for revealing the relative position of the target part model in a target equipment model; and processing the target equipment model according to the part model identification, the part model visual angle and the part model position in the part model parameters to obtain a processed target equipment model for displaying, wherein the target equipment model displayed by the processed target equipment model is not shielded in a non-perspective manner by other equipment part models on the model display surface.

Description

Model display method, device, medium and server based on material transfer platform

Technical Field

The application relates to the technical field of image processing, in particular to a model display method, device, medium and server based on a material turnover platform.

Background

In order to improve the turnover rate of materials in the construction of building engineering, a material management platform or application is generally used, and the material management platform or application can provide a material turnover channel for buyers and sellers.

At present, a material management platform or application is usually displayed in a manner of shooting a real image for construction equipment or equipment parts. And the material image that shows is the show mode of material object image, and the goods and materials image that shows has shortcomings such as non-standardization, material information is scarce, easily confuses, and it is difficult to show the show main points (for example, the type, the style of construction equipment, the model, the mounted position, the cooperation mode of equipment part etc. of turnover material (for example, equipment part in the construction equipment), and the show of these main points can reveal the characteristics of the material that needs the show intuitively). In addition, the display mode of the real object image requires not only the real object image to be shot by the material turnover personnel of the material provider, but also the shot real object image to be processed (for example, irrelevant background is removed, image size, brightness, contrast and the like are adjusted), so that more manpower and material resources are consumed, the use is not facilitated, and the user experience is poor.

Disclosure of Invention

An object of the embodiment of the application is to provide a model display method, device, medium and server based on goods and materials turnover platform to through the three-dimensional model display mode who provides turnover goods and materials, realize the standardized show of turnover goods and materials simply high-efficiently, and can show abundanter goods and materials information, practice thrift user's manpower and materials, promote user's use and experience.

In order to achieve the above object, embodiments of the present application are implemented as follows:

in a first aspect, an embodiment of the present application provides a model display method based on a material turnover platform, including: acquiring a target equipment model, wherein the target equipment model is a three-dimensional model corresponding to target equipment and comprises a plurality of equipment part models; acquiring part model parameters, wherein the part model parameters comprise a part model identifier for revealing a target part model to be displayed, a part model view angle for revealing a reference display angle of the target part model, and a part model position for revealing a relative position of the target part model in the target equipment model; and processing the target equipment model according to the part model identification, the part model view angle and the part model position in the part model parameters to obtain a processed target equipment model for displaying, wherein the target equipment model displayed by the processed target equipment model is not shielded by other equipment part models on the model display surface.

In the embodiment of the application, a target equipment model (a three-dimensional model corresponding to target equipment and including a plurality of equipment part models) is obtained, and part model parameters (including part model identification, part model view angle and part model position) are obtained, so that the target equipment model is processed according to the part model identification, the part model view angle and the part model position to obtain a processed target equipment model for display, wherein the processed target equipment model displayed by the target equipment model is not shielded in a non-perspective manner by other equipment part models on a model display surface. The target equipment model can represent the construction equipment to be displayed (specifically to the equipment model corresponding to the equipment model), the parameters of the part model can determine the equipment parts to be displayed, the part model identification, the part model visual angle and the part model position can be used for correspondingly processing the target equipment model, and the target part model displayed by the processed target equipment model has no non-perspective shielding generated by other equipment part models on the model display surface, so that the displayed part model can reflect richer information as much as possible (such as applicable construction equipment, installation positions in the construction equipment, matching modes with other parts and the like), a user can conveniently, intuitively, efficiently and accurately determine whether the displayed part model is the required material based on the display key points, the requirement on the professional knowledge of the material turnover personnel is reduced (because the rich information can be intuitively given through the content displayed by the model, the user of being convenient for compares with own required goods and materials), can also realize the standardized show of goods and materials image, can effectively avoid the problem that the goods and materials are confused, avoid the production of unexpected cost (for example purchased wrong goods and materials, lost time cost and economic cost).

With reference to the first aspect, in a first possible implementation manner of the first aspect, the processing the target device model according to the part model identifier, the part model view angle, and the part model position in the part model parameter includes: determining a target part model to be displayed from a plurality of equipment part models of the target equipment model according to the part model identification; determining a model display surface of the target part model at a reference display angle according to the part model view angle; and processing the target equipment model according to the model display surface and the part model position.

In the implementation mode, the target part model to be displayed is determined from the multiple equipment part models of the target equipment model according to the part model identification, so that the corresponding part model identification can be generated when the user selects the equipment part to be displayed to determine the target part model to be displayed. And the model display surface of the target part model under the reference display angle is determined according to the part model visual angle, so that the display angle with better display effect (which can also be understood as the visual angle of the observation model) can be selected to display the target part model, and richer display points are covered to reveal the identification characteristics of the target part model as far as possible. And processing the target equipment model according to the model display surface and the position of the part model, thereby achieving a better display effect.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the determining, according to the part model view angle, a model display surface of the target part model at a reference display angle includes: determining a point with the largest distance in the direction of the reference display angle from the target part model as a reference point O, constructing a three-dimensional coordinate system by taking the reference point as an origin and the opposite direction of the reference display angle as a Z-axis direction, and determining a projection plane XOY; projecting each point on the target part model onto a projection plane XOY by taking the three-dimensional coordinate system as a reference to obtain a projection point set P subjected to projection and de-weighting_AAnd the model is used as a model display surface of the target part model at a reference display angle.

In this implementation, by using the reference display angle, a three-dimensional coordinate system may be constructed with one point (a point having the largest distance in the direction of the reference display angle) on the target part model as the reference point O and the opposite direction of the reference display angle as the Z-axis direction (the directions of the X-axis and the Y-axis may not be particularly limited), and the projection plane may be determined to be the XOY plane. Projecting each point on the target part model onto a projection plane XOY by taking the three-dimensional coordinate system as a reference to obtain a projection point set P subjected to projection and weight removal_AAnd the model display surface of the target part model at the reference display angle is used. The mode can conveniently and efficiently determine the model display surface of the target part model at the reference display angle.

With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the part model location is of a first location type,the first position type indicates that the target part model is located in an external open area of the target equipment model, the target part model located in the external open area is not completely shielded by other equipment part models in the target equipment model under the reference display angle, and the processing of the target equipment model according to the model display surface and the position of the part model includes: screening other equipment part models except the target part model in the target equipment model by taking a three-dimensional coordinate system as a reference, and determining all potential shielding part models with forward point positions, wherein the forward point positions represent that the Z coordinate of the point positions is a positive number, and the number of the potential shielding part models is n; aiming at the ith potential shielding part model, projecting each point on the potential shielding part model onto a projection plane XOY by taking the three-dimensional coordinate system as a reference to obtain a projection point set P with projection and de-weight_BiWherein i =1, 2, 3, … …, n; solving all projection point sets P_BiUnion P of_B：P_B=P_B1∪P_B2∪P_B3∪……∪P_Bn(ii) a Finding a set of projection points P_AAnd P_BOf (b) intersection P_C：P_C=P_A∩P_B(ii) a Computing the intersection P_CAnd a set of projection points P_AObtaining the total projection coverage proportion of all the potentially-shielded part models in the target equipment model on the model display surface; and carrying out differentiation processing on the equipment part model in the target equipment model according to the total projection coverage proportion.

In this implementation manner, when the first position type indicates that the target part model is located in an external open area of the target device model (the target part model located in the external open area is not completely blocked by other device part models in the target device model at a reference display angle), the three-dimensional coordinate system is used as a reference to screen other device part models in the target device model except the target part model, and determine all potential blocking part models with forward point locations, where a Z coordinate of the forward point location indicates that the point location is a positive number, and the number of the potential blocking part models is equal to the number of the potential blocking part modelsIs n. Therefore, the equipment part model which possibly shields the model display surface of the target part model can be quickly and accurately determined, so that the equipment part model which cannot shield is eliminated, and the data processing amount in the subsequent process is greatly reduced. And aiming at the ith potential shielding part model, projecting each point on the potential shielding part model onto a projection plane XOY by taking a three-dimensional coordinate system as a reference to obtain a projection point set P which is projected and deduplicated_BiWherein i =1, 2, 3, … …, n; then, all projection point sets P are obtained_BiUnion P of_B：P_B=P_B1∪P_B2∪P_B3∪……∪P_Bn(ii) a Finding a set of projection points P_AAnd P_BOf (b) intersection P_C：P_C=P_A∩P_B. Recalculating intersection P_CAnd a set of projection points P_AAnd obtaining the total projection coverage proportion of all the potential shielding part models in the target equipment model on the model display surface. By the method, the total projection coverage proportion of all the potential shielding part models on the model display surface can be determined completely and accurately, so that the shielding condition of all the potential shielding part models on the target part model at the reference display angle is reflected. And then, according to the difference of the total projection coverage proportion, carrying out differentiation processing on the equipment part model in the target equipment model, thereby improving the display effect of the target equipment model as much as possible.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the performing differentiation processing on the device part model in the target device model includes: determining a first adjacent part model having a direct contact relation or a direct connection relation with the target part model from the target equipment model, performing primary rendering on the target part model and the first adjacent part model, and performing secondary rendering on the rest part model, wherein the primary rendering is finer than the secondary rendering, and the rest part model represents the target equipment model except the target part model and the first adjacent part modelA device part model outside the near part model; calculating a projection point set P corresponding to each potential shielding part model on the projection plane XOY_BiA projection point set P corresponding to the target part model on a projection plane XOY_AThe intersection P between_DiAnd judge the intersection P_DiIf it is empty, if it is intersected with P_DiFor the empty set, determining the corresponding potential shielding part model as a non-shielding part model, and if the intersection P is formed_DiIf not, determining the corresponding potential shielding part model as a first shielding part model, and performing translucency processing on the first shielding part model; coloring the target part model.

In this implementation, for the case where the total proportion of projection coverage does not exceed the set proportion: the method comprises the steps of determining a first adjacent part model which has a direct contact relation or a direct connection relation with a target part model from the target equipment model, conducting primary rendering on the target part model and the first adjacent part model, and conducting secondary rendering on the rest part model, wherein the primary rendering is more precise than the secondary rendering, and the rest part model represents the equipment part model except the target part model and the first adjacent part model in the target equipment model. Therefore, different part models can be subjected to differentiated rendering, the rendering precision of the target part model and the first adjacent part model is ensured, a user can conveniently and clearly observe the details (such as model, characteristics, installation position, matching mode and the like) of the equipment part models, and for other part models (the importance degree in the display is relatively low, the reflected information is relatively less), the rendering with slightly low fineness can be performed, so that the rendering speed is increased, and the operation efficiency of the method is improved. Calculating a projection point set P corresponding to each potential shielding part model on the projection plane XOY_BiA projection point set P corresponding to the target part model on a projection plane XOY_AThe intersection P between_DiAnd judge the intersection P_DiIf it is empty, if it is intersected with P_DiFor the empty set, determining the corresponding potential shielding part model as a non-shielding part model, and if the intersection P is formed_DiNot empty set, determining corresponding potential occlusion part model asAnd the first shielding part model is subjected to translucency treatment. In this way, the projection point set P can be judged_BiAnd a set of projection points P_AThe intersection P between_DiWhether the model is an empty set or not is determined to determine whether the potential shielding part model is a first shielding part model or not, so that the first shielding part model is subjected to translucency processing, certain contour and morphological characteristics of the first shielding part model are kept, meanwhile, non-perspective shielding of the first shielding part model on the target part model is prevented, and the characteristics of the target part model can be well displayed. The non-shielding part model is not subjected to transparentization or translucency treatment, so that the visual effect of the non-shielding part model can be kept, and the target part model is positioned in an external open area of the target equipment model, and the non-shielding part model in the target part model is kept, so that the relatively complete overall impression of the target equipment model can be given to a user as far as possible, and the observation and judgment of the user are facilitated. In addition, the target part model is colored, so that the target part model can be highlighted and distinguished from other equipment part models, and the user can observe the target part model conveniently.

With reference to the third possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the performing differentiation processing on the device part model in the target device model when the total projection coverage proportion exceeds a set proportion includes: generating a display view frame on a projection plane XOY, wherein the display view frame is used for limiting the display range of the target equipment model, and the part of the target equipment model, which is positioned outside the display view frame, is not displayed; projection point set P corresponding to projection plane XOY based on target part model_ADetermining a display center of the model display surface; superposing the display center with a frame center of the display view frame, and adjusting a relative size relationship between the target equipment model and the display view frame to make an occupation ratio of the model display surface in the display view frame reach a first occupation ratio range, wherein a corresponding coordinate range of the display view frame on a projection plane XOY is P_E(ii) a Casting each equipment part model based on the target equipment modelProjection point set P after projection and de-duplication on projection plane XOY_FjDetermining that there is at least one proxel coordinate located in coordinate range P_EA plurality of projection point sets P within_Fj' and determining each set of projection points P_Fj' the respectively corresponding equipment part models are drawing frame display part models; determining a second adjacent part model which has a direct contact relation or a direct connection relation with the target part model from the picture frame display part model, performing primary rendering on the target part model and the second adjacent part model, and performing secondary rendering on equipment part models except the target part model and the second adjacent part model in the picture frame display part model, wherein the primary rendering is finer than the secondary rendering; aiming at each picture frame display part model, calculating a projection point set P corresponding to the picture frame display part model on a projection plane XOY_Fj' projection point set P corresponding to the target part model on projection plane XOY_AThe intersection P between_GjIf the intersection P is_GjFor the empty set, this intersection P is determined_GjThe corresponding picture frame display part model is a non-shielding part model, if the intersection P is_GjNot being an empty set, determining the intersection P_GjThe corresponding picture frame display part model is a second shielding part model, and the second shielding part model is subjected to translucency treatment; coloring the target part model; correspondingly, the processed target equipment model is obtained for displaying, that is, the processed drawing frame display part model in the display view frame is obtained for displaying.

In this implementation, for the case that the total projection coverage ratio exceeds the set ratio, the overall manner of the device model is not favorable for the user to observe, so that a display view frame is generated on the projection plane XOY (for defining the display range of the target device model, the portion of the target device model outside the display view frame is not displayed); projection point set P corresponding to projection plane XOY based on target part model_ADetermining a display center of the model display surface; the display center is overlapped with the frame center of the display view frame, and the distance between the target equipment model and the display view frame is adjustedRelative size relationship, so that the proportion of the model display surface in the display view frame reaches a first proportion range, and at this time, the corresponding coordinate range of the display view frame on the projection plane XOY is P_E. Therefore, the target equipment model and the display view frame can be adjusted to be suitable for observing relative sizes, so that the display key points of the target part model can be conveniently displayed, and the observation by a user is facilitated. Then, based on the projection point set P after each equipment part model in the target equipment model is projected and de-duplicated on the projection plane XOY_FjDetermining that there is at least one proxel coordinate located in coordinate range P_EA plurality of projection point sets P within_Fj' and determining each set of projection points P_Fj' the respectively corresponding equipment part models are drawing frame display part models. Can high-efficient and accurately determine the picture frame show part model in the picture frame is looked in the show like this to the realization is to the show of picture frame show part model, and can sieve the equipment part model outside the picture frame is looked in the show, reduces data processing volume, promotes the operating efficiency of method. Determining a second adjacent part model having a direct contact relation or a direct connection relation with the target part model from the picture frame display part model, performing primary rendering on the target part model and the second adjacent part model, and performing secondary rendering on the equipment part model except the target part model and the second adjacent part model in the picture frame display part model, wherein the primary rendering is finer than the secondary rendering. Therefore, different part models can be subjected to differentiated rendering, the rendering precision of the target part model and the second adjacent part model is ensured, a user can conveniently and clearly observe the details (such as model, characteristics, installation position, matching mode and the like) of the equipment part models, and for other part models (the importance degree in the display is relatively low, the reflected information is relatively less), the rendering with slightly low fineness can be performed, so that the rendering speed is increased, and the operation efficiency of the method is improved. Aiming at each picture frame display part model, calculating a projection point set P corresponding to the picture frame display part model on a projection plane XOY_Fj' projection point set P corresponding to target part model on projection plane XOY_AThe intersection P between_GjIf the intersection P is_GjFor the empty set, this intersection P is determined_GjThe corresponding picture frame display part model is a non-shielding part model, if the intersection P is_GjNot being an empty set, determining the intersection P_GjAnd the corresponding picture frame display part model is a second shielding part model, and the second shielding part model is subjected to translucency treatment. In this way, the projection point set P can be judged_Fj' AND projection point set P_AThe intersection P between_GjWhether the model is an empty set or not is determined to determine whether the picture frame display part model is a second shielding part model or not, so that the second shielding part model is subjected to translucency processing, the target part model is prevented from being shielded in a non-perspective manner, and the characteristics of the target part model can be well displayed. The non-shielding part model is not subjected to transparentization or translucency treatment, so that the visual effect of the non-shielding part model can be kept, and the target part model is positioned in an external open area of the target equipment model, and the non-shielding part model in the target part model is kept, so that the relatively complete overall impression of the target equipment model can be given to a user as far as possible, and the observation and judgment of the user are facilitated. In addition, the target part model is colored, so that the target part model can be highlighted and distinguished from other equipment part models, and the user can observe the target part model conveniently.

With reference to the second possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, the part model position is a second position type, where the second position type indicates that the target part model is located in an internal closed area of the target equipment model, and a target part model located in the internal closed area is completely hidden by other equipment part models in the target equipment model at the reference display angle, and the processing the target equipment model according to the model display surface and the part model position includes: generating a display view frame on a projection plane XOY, wherein the display view frame is used for limiting the display range of the target equipment model, and the part of the target equipment model, which is positioned outside the display view frame, is not displayed; projection point set P corresponding to projection plane XOY based on target part model_ADetermining what isA display center of the model display surface; superposing the display center with a frame center of the display view frame, and adjusting a relative size relationship between the target equipment model and the display view frame to make an occupation ratio of the model display surface in the display view frame reach a second occupation ratio range, wherein a corresponding coordinate range of the display view frame on a projection plane XOY is P_H(ii) a Projection point set P after projection and de-duplication on projection plane XOY based on each equipment part model in the target equipment model_KjDetermining that there is at least one proxel coordinate located in coordinate range P_HA plurality of projection point sets P within_Kj' and determining each set of projection points P_Kj' the respectively corresponding equipment part models are drawing frame display part models; determining a third adjacent part model having a direct contact relation or a direct connection relation with the target part model from the picture frame display part model, performing primary rendering on the target part model and the third adjacent part model, and performing secondary rendering on equipment part models except the target part model and the third adjacent part model in the picture frame display part model, wherein the primary rendering is finer than the secondary rendering; aiming at each picture frame display part model, calculating a projection point set P corresponding to the picture frame display part model on a projection plane XOY_Kj' projection point set P corresponding to the target part model on projection plane XOY_AThe intersection P between_LjIf the intersection P is_LjFor the empty set, this intersection P is determined_LjThe corresponding picture frame display part model is a non-shielding part model, if the intersection P is_LjNot being an empty set, determining the intersection P_LjThe corresponding picture frame display part model is a third shielding part model, the third shielding part model is subjected to translucency treatment, and the non-shielding part model is subjected to full transparence treatment; coloring the target part model; correspondingly, the processed target equipment model is obtained for displaying, that is, the processed drawing frame display part model in the display view frame is obtained for displaying.

In this implementation, the model positions for the part areAnd generating a display view frame on the projection plane XOY according to the second position type (the target part model is located in the internal closed area of the target equipment model, and the target part model located in the internal closed area is completely shielded by other equipment part models in the target equipment model under the reference display angle), wherein the display view frame is used for limiting the display range of the target equipment model, and the part of the target equipment model located outside the display view frame is not displayed. Projection point set P corresponding to projection plane XOY based on target part model_ADetermining a display center of the model display surface; the display center is overlapped with the frame center of the display view frame, and the relative size relationship between the target equipment model and the display view frame is adjusted to enable the proportion of the model display surface in the display view frame to reach a second proportion range, at the moment, the corresponding coordinate range of the display view frame on the projection plane XOY is P_H. Therefore, the target equipment model and the display view frame can be adjusted to be suitable for observing relative sizes, so that the display key points of the target part model can be conveniently displayed, and the observation by a user is facilitated. Then, based on the projection point set P after each equipment part model in the target equipment model is projected and de-duplicated on the projection plane XOY_KjDetermining that there is at least one proxel coordinate located in coordinate range P_HA plurality of projection point sets P within_Kj' and determining each set of projection points P_Kj' the respectively corresponding equipment part models are drawing frame display part models. Can high-efficient and accurately determine the picture frame show part model in the picture frame is looked in the show like this to the realization is to the show of picture frame show part model, and can sieve the equipment part model outside the picture frame is looked in the show, reduces data processing volume, promotes the operating efficiency of method. Determining a third adjacent part model having a direct contact relation or a direct connection relation with a target part model from the picture frame display part model, performing primary rendering on the target part model and the third adjacent part model, and performing secondary rendering on equipment part models except the target part model and the third adjacent part model in the picture frame display part model, wherein the primary rendering is finer than the secondary rendering. In this way, different part models can be differentiatedAnd rendering is carried out, so that the rendering precision of the target part model and the third adjacent part model is ensured, a user can conveniently and clearly observe the details (such as models, characteristics, installation positions, matching modes and the like) of the equipment part models, and for other part models (the importance degree in the display is relatively low, the reflected information is relatively less), rendering with slightly low precision can be carried out, so that the rendering speed is increased, and the operation efficiency of the method is improved. Aiming at each picture frame display part model, calculating a projection point set P corresponding to the picture frame display part model on a projection plane XOY_Kj' projection point set P corresponding to the target part model on projection plane XOY_AThe intersection P between_LjIf the intersection P is_LjFor the empty set, this intersection P is determined_LjThe corresponding picture frame display part model is a non-shielding part model, if the intersection P is_LjNot being an empty set, determining the intersection P_LjAnd the corresponding picture frame display part model is a third shielding part model, the third shielding part model is subjected to translucency treatment, and the non-shielding part model is subjected to full transparence treatment. In this way, the projection point set P can be judged_Kj' AND projection point set P_AThe intersection P between_LjWhether the model is an empty set or not is determined to determine whether the picture frame display part model is a third shielding part model or not, so that the third shielding part model is subjected to translucency processing, the target part model is prevented from being shielded in a non-perspective manner, and the characteristics of the target part model can be well displayed. The non-shielding part model is further subjected to full-transparency processing, shielding of the non-shielding part model can be prevented, the target part model is located in the inner closed area of the target equipment model, integrity of the equipment model does not need to be considered, the inner equipment part model (particularly a third adjacent part model located behind the target part model) can be better displayed, and therefore observation and judgment of a user are facilitated. In addition, the target part model is colored, so that the target part model can be highlighted and distinguished from other equipment part models, and the user can observe the target part model conveniently.

In a second aspect, an embodiment of the present application provides a model display device based on a material turnover platform, including: the target equipment model obtaining unit is used for obtaining a target equipment model, wherein the target equipment model is a three-dimensional model corresponding to target equipment and comprises a plurality of equipment part models; the part model parameter acquisition unit is used for identifying a part model of a target part model, revealing a part model view angle of a reference display angle of the target part model and revealing a part model position of a relative position of the target part model in the target equipment model; and the target equipment model processing unit is used for processing the target equipment model according to the part model identification, the part model visual angle and the part model position in the part model parameters to obtain a processed target equipment model for displaying, wherein the processed target equipment model displayed by the target equipment model is not blocked in a non-perspective manner by other equipment part models on the model display surface.

In a third aspect, an embodiment of the present application provides a storage medium, where the storage medium includes a stored program, where, when the program runs, a device where the storage medium is located is controlled to execute the model display method based on the material turnover platform according to the first aspect or any one of possible implementation manners of the first aspect.

In a fourth aspect, an embodiment of the present application provides a server, including a memory and a processor, where the memory is configured to store information including program instructions, and the processor is configured to control execution of the program instructions, where the program instructions are loaded and executed by the processor, to implement the material turnover platform-based model display method according to the first aspect or any one of possible implementation manners of the first aspect.

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

Fig. 1 is a flowchart of a model display method based on a material turnover platform according to an embodiment of the present application.

Fig. 2 is a structural block diagram of a model display device based on a material turnover platform according to an embodiment of the present application.

Icon: 10-a model display device based on a material turnover platform; 11-target device model obtaining unit; 12-a part model parameter acquisition unit; 13-target device model processing unit.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

Fig. 1 is a flowchart of a model display method based on a material turnover platform according to an embodiment of the present application.

For ease of understanding, the material transfer platform will be briefly described here: the material turnover platform can provide a material turnover channel for buyers and sellers (mainly building construction enterprises), and is similar to a second-hand material trading platform. According to the traditional material turnover platform, a seller user can use the materials (such as construction equipment, equipment parts, equipment consumables and the like) needing turnover, so that basic parameters such as detailed names, models and sizes need to be introduced, and images need to be uploaded, so that the user can browse and visually know the materials.

However, the conventional image (physical image) has the disadvantages of non-standardization, lack of material information, confusion, and the like, and it is difficult to display the display points (for example, the type and style of construction equipment, the type and installation position of equipment parts, the matching manner, and the like) of materials (for example, equipment parts in construction equipment), and the display of the points can intuitively reveal the characteristics of the materials to be displayed. In addition, the display mode of the real object image requires not only the real object image to be shot by the material turnover personnel of the material provider, but also the shot real object image to be processed (for example, irrelevant background is removed, image size, brightness, contrast and the like are adjusted), so that more manpower and material resources are consumed, the use is not facilitated, and the user experience is poor.

Based on this, this application embodiment provides a goods and materials turnover platform, places in the server, and the server can communicate with a plurality of intelligent terminal, and every intelligent terminal embeds has the client that goods and materials turnover platform corresponds to for the user uses.

Referring to fig. 1, fig. 1 is a flowchart of a model display method based on a material turnover platform according to an embodiment of the present disclosure. In this embodiment, the model display method based on the material turnover platform may include step S10, step S20, and step S30.

When a seller user needs to put on a material to be circulated (for example, construction equipment or equipment parts thereof, such as a rotary table of an abrasive wheel cutting machine, a motor and the like), information of the construction equipment to which the material belongs (for example, an equipment model of the construction equipment) can be input or selected through an intelligent terminal (a client side in the seller user), and then the material is input or selected as which equipment part or equipment consumable in the construction equipment (for example, the equipment part or the equipment consumable is realized through part model identification), and is uploaded to a server (a material circulation platform in the seller user).

Thus, the server can perform step S10.

Step S10: and acquiring a target equipment model, wherein the target equipment model is a three-dimensional model corresponding to the target equipment and comprises a plurality of equipment part models.

In this embodiment, three-dimensional models of a plurality of types of construction equipment are preset in the material turnover platform of the server, and each three-dimensional model comprises a plurality of equipment part models. The server can obtain the recorded information (such as the equipment model) of the construction equipment, so as to determine a target equipment model (including multiple equipment part models) corresponding to the construction equipment, such as a grinding wheel cutter model.

After determining the target device model, the server may further perform step S20.

Step S20: acquiring part model parameters, wherein the part model parameters comprise a part model identifier for revealing a target part model to be displayed, a part model view angle for revealing a reference display angle of the target part model, and a part model position for revealing a relative position of the target part model in the target equipment model.

In this embodiment, the server may obtain the part model parameters, where the part model parameters may include a part model identifier for revealing a target part model to be displayed, and the part model identifier may be determined by information of the device part model entered or selected by the user. The part model parameters may further include a part model view angle for revealing the reference display angle of the target part model, where the part model view angle of the reference display angle of the target part model may be preset (for example, each target part model may be associated with a set part model view angle, and the target part model has a better display effect at the part model view angle), or may be selected by the user (for example, a main view angle, a side view angle, and the like associated with the target part model), and is not limited herein. The part model parameters may also include part model positions for revealing the relative position of this target part model in the target equipment model. The part model position here may be a parameter set according to a relative position of the target part model in the target equipment model, and may include a first position type and a second position type, where the first position type indicates that the target part model is located in an outer open area of the target equipment model, and the target part model located in the outer open area is not completely blocked by other equipment part models in the target equipment model at the reference display angle (for example, a grinding wheel model in the grinding wheel cutter model, which belongs to the first position type); the second position type indicates that the target part model is located in an internal closed area of the target equipment model, and the target part model located in the internal closed area is completely shielded by other equipment part models in the target equipment model at the reference display angle (for example, a motor model in the grinding wheel cutter model belongs to the second position type).

After obtaining the part model parameters, the server may perform step S30.

Step S30: and processing the target equipment model according to the part model identification, the part model view angle and the part model position in the part model parameters to obtain a processed target equipment model for displaying, wherein the target equipment model displayed by the processed target equipment model is not shielded by other equipment part models on the model display surface.

In this embodiment, the server may process the target device model according to the part model identifier, the part model view angle, and the part model position in the part model parameter, so as to obtain a processed target device model for display. And the displayed target part model of the processed target equipment model is not shielded in a non-perspective way by other equipment part models on the model display surface of the target equipment model so as to ensure the display effect.

The method comprises the steps of processing a target equipment model according to a part model identifier, a part model visual angle and a part model position by obtaining the target equipment model (a three-dimensional model which corresponds to the target equipment and comprises a plurality of equipment part models) and obtaining part model parameters (comprising a part model identifier, a part model visual angle and a part model position), so as to obtain the processed target equipment model for displaying, wherein the target part model displayed by the processed target equipment model has no non-perspective shielding generated by other equipment part models on a model display surface. The target equipment model can represent the construction equipment to be displayed (specifically to the equipment model corresponding to the equipment model), the parameters of the part model can determine the equipment parts to be displayed, the part model identification, the part model visual angle and the part model position can be used for correspondingly processing the target equipment model, and the target part model displayed by the processed target equipment model has no non-perspective shielding generated by other equipment part models on the model display surface, so that the displayed part model can reflect richer information as much as possible (such as applicable construction equipment, installation positions in the construction equipment, matching modes with other parts and the like), a user can conveniently, intuitively, efficiently and accurately determine whether the displayed part model is the required material based on the display key points, the requirement on the professional knowledge of the material turnover personnel is reduced (because the rich information can be intuitively given through the content displayed by the model, the user of being convenient for compares with own required goods and materials), can also realize the standardized show of goods and materials image, can effectively avoid the problem that the goods and materials are confused, avoid the production of unexpected cost (for example purchased wrong goods and materials, lost time cost and economic cost).

In this embodiment, when the server processes the target device model, the target device model to be displayed may be determined from the multiple device part models of the target device model according to the part model identifier. For example, each device part model in the target device model has a corresponding unique number or title, and the part model identifier may be such a unique number or title, so that the corresponding device part model can be determined as the target part model to be displayed. Therefore, when the user selects the equipment part to be displayed, the corresponding part model identification can be generated to determine the target part model to be displayed.

Then, the server can determine a model display surface of the target part model at the reference display angle according to the part model view angle. Therefore, the target part model can be displayed by selecting the display angle with better display effect (which can also be understood as the view angle of the observation model), so that richer display points are covered, and the identification characteristics of the target part model are disclosed as far as possible.

For example, the server may determine, from the target part model, a point having the largest distance in the direction of the reference display angle as a reference point O, construct a three-dimensional coordinate system with the reference point as an origin and with the opposite direction of the reference display angle as a Z-axis direction (the X-axis and the Y-axis may be along a set direction, or may be a direction determined by contour recognition of the target part model, which is not limited herein), and determine the projection plane XOY. Projecting each point on the target part model onto a projection plane XOY by taking the three-dimensional coordinate system as a reference to obtain a projection point set P subjected to projection and weight removal_ATo doAnd displaying the model of the target part model on a model display surface at a reference display angle. The mode can conveniently and efficiently determine the model display surface of the target part model at the reference display angle.

And then, the server can process the target equipment model according to the model display surface and the position of the part model so as to achieve a better display effect.

In order to achieve better display effect, the processing manner of the target device model will be described separately for different types of part model positions (a first position type and a second position type).

When the part model position is the first position type, the target part model is located in an external open area of the target equipment model and is not completely shielded by other equipment part models in the target equipment model under the reference display angle. That is, the observation of the target part model, such as the grinding wheel model in the grinding wheel cutter model, may be achieved outside of the target equipment model.

Based on the method, the server can screen other equipment part models except the target part model in the target equipment model by taking the three-dimensional coordinate system as a reference, and determine all potential shielding part models with forward point positions, wherein the forward point positions represent that the Z coordinate of the point positions is a positive number, and the number of the potential shielding part models is n.

Here, it can be understood that: the device part model in which part (a part of point coordinates in the device part model) or all (all point coordinates in the device part model) is located in front of the reference point O (the Z coordinate is greater than zero) exists, that is, the target part model is possibly occluded, and therefore, the device part model is screened out as a potential occlusion part model. Therefore, the equipment part model which possibly shields the model display surface of the target part model can be quickly and accurately determined, so that the equipment part model which cannot shield is eliminated, and the data processing amount in the subsequent process is greatly reduced.

After determining the potential shielding part model, the server may use the three-dimensional coordinate system as a reference to the ith potential shielding part model to set the potential shielding part modelProjecting each point on the model onto a projection plane XOY to obtain a projected and de-duplicated projection point set P_BiWherein i =1, 2, 3, … …, n. Set of projected points P here_BiThe projection area of the model of the potential occlusion part on the projection plane XOY can be characterized.

The server may then find all the sets of projection points P_BiUnion P of_B：

P_B=P_B1∪P_B2∪P_B3∪……∪P_Bn，（1）

Here, the union P_BThe projection area of all the potentially occluded part models on the projection plane XOY can be characterized.

Thereafter, the server may further obtain a projection point set P_AAnd P_BOf (b) intersection P_C：

P_C=P_A∩P_B，（2）

Here, the intersection P_CThe method can represent the overlapped part of the projection areas of all the potential shielding part models on the projection plane XOY and the projection areas of the target part models on the projection plane XOY, and can effectively reflect the shielding condition of all the potential shielding part models on the target part models under the reference display visual angle.

In order to accurately calculate the total proportion of projection coverage of all potential shielding part models in the target equipment model on the model display surface, the server can calculate the intersection P_CAnd a set of projection points P_AThe point number ratio of (c).

Illustratively, the servers may be from the intersection P_CMiddle screening outline point set P_C1And a set of contouring points P_C2Here, the contour point set P_C1Representing intersection P_CRepresents a set of points where the outline of the model-displaying surface is located. Wherein a set of contour points P is determined_C1The method can be as follows: and screening out points with adjacent point vacancies on the X axis or the Y axis as contour points, wherein one point has an adjacent point vacancy, which means that the point at least lacks one unit adjacent point, and the unit adjacent point is a point position separated from the coordinate of the point by a minimum unit size coordinate. E.g. minimum unitThe size coordinate is 1 and the coordinate of one point T is (x, y), then the unit neighbors of point T have T₁（x+1，y），T₂（x-1，y），T₃（x，y+1），T₄(x, y-1); then, when there is at least one unit neighbor missing around the point T (i.e., T)₁、T₂、T₃、T₄At least one missing) of the contour points, the point T can be determined to be a contour point.

Of course, since the contour points usually have a continuous characteristic, when the contour points are determined, a corresponding determination rule can be set by using the characteristic to realize efficient determination of the contour points. In addition, other contour point determination methods may also be employed, for example, by determining contour points by coordinate comparison: first from the intersection P_CTo determine the X coordinate minimum (e.g., X)_min) And all points from which the X coordinate is smallest (the X coordinates of these points are all X)_min) Determining two contour points with the maximum and minimum Y coordinates; then from the intersection P_CTo determine the X coordinate as X_min+1 points (here 1 is the minimum unit size of the coordinates of each point) and X from the X coordinate_minDetermining two contour points with the maximum and minimum Y coordinates from all points of +1, and repeating the above steps until the contour points are obtained from the intersection P_CTo determine the maximum X coordinate (e.g., X)_max) And X from the X coordinate_maxDetermines two contour points with the maximum and minimum Y coordinates. Then, from the intersection P_CTo determine the minimum Y coordinate (e.g., Y)_min) And all points from which the Y coordinate is smallest (the Y coordinates of these points are all Y)_min) Determining two contour points with the maximum and minimum X coordinates; then from the intersection P_CTo determine the Y coordinate as Y_min+1 points (here 1 is the minimum unit size of the coordinates of each point) and Y from the Y coordinate_minDetermining two contour points with the maximum and minimum X coordinates from all points of +1, and repeating the above steps until the contour points are obtained from the intersection P_CTo determine the maximum Y coordinate (e.g., Y)_max) And from the Y coordinate to Y_maxDetermines two wheels with the maximum and minimum X coordinates from all the pointsAnd (4) contour points. Summarizing and de-duplicating the contour points obtained each time to obtain a contour point set P_C1。

Then, the server can calculate the total proportion of the projection coverage by the following formula:

，（3）

wherein the content of the first and second substances,

which represents the total proportion of the projection coverage,

、

、

、

respectively represent intersections

Set of contour points

Set of contour points

And the outline point set

Of intersection of

Projection point set P_ANumber of points in, set of contour points

For a set of projection points P_AOf the set of contour points of (a),

the value of the outline passivation index is 0.5-2.

By the method, the influence of the contour edge of the equipment part model can be considered (the contour edge usually has a passivation phenomenon, particularly, when the model is shielded, the contour edge passivation phenomenon of the equipment part model (namely, the shielded part model) on the upper layer is more obvious and can be shielded by 0.5-2 minimum unit sizes more than the actual coordinate), so that the factor can be effectively considered in the method, and the more accurate total projection coverage proportion can be determined.

By the method, the total projection coverage proportion of all the potential shielding part models on the model display surface can be determined completely and accurately, so that the shielding condition of all the potential shielding part models on the target part model at the reference display angle is reflected.

After the total projection coverage proportion of all the potential shielding part models in the target equipment model on the model display surface is obtained, the server can perform differentiation processing on the equipment part models in the target equipment model according to the total projection coverage proportion, and therefore the display effect of the target part model is improved as much as possible.

For example, when the total projection coverage ratio (e.g., 20%) does not exceed a set ratio (e.g., 50%), the server may determine a first neighboring part model having a direct contact relationship or a direct connection relationship with the target part model from the target device model, perform a primary rendering on the target part model and the first neighboring part model, and perform a secondary rendering on the remaining part model, wherein the primary rendering is finer than the secondary rendering, and the remaining part model represents the device part model of the target device model except for the target part model and the first neighboring part model.

Therefore, different part models can be subjected to differentiated rendering, the rendering precision of the target part model and the first adjacent part model is ensured, a user can conveniently and clearly observe the details (such as model, characteristics, installation position, matching mode and the like) of the equipment part models, and for other part models (the importance degree in the display is relatively low, the reflected information is relatively less), the rendering with slightly low fineness can be performed, so that the rendering speed is increased, and the operation efficiency of the method is improved.

Then, the server can calculate a projection point set P corresponding to each potential occlusion part model in the projection plane XOY_BiProjection point set P corresponding to target part model on projection plane XOY_AThe intersection P between_DiAnd judge the intersection P_DiIf it is empty, if it is intersected with P_DiFor the empty set, determining the corresponding potential shielding part model as a non-shielding part model, and if the intersection P is formed_DiIf not, determining the corresponding potential shielding part model as a first shielding part model, and performing translucency processing on the first shielding part model; and coloring the target part model.

In this way, the projection point set P can be judged_BiAnd a set of projection points P_AThe intersection P between_DiWhether the model is an empty set or not is determined to determine whether the potential shielding part model is a first shielding part model or not, so that the first shielding part model is subjected to translucency processing, certain contour and morphological characteristics of the first shielding part model are kept, meanwhile, non-perspective shielding of the first shielding part model on the target part model is prevented, and the characteristics of the target part model can be well displayed. The non-shielding part model is not subjected to transparentization or translucency treatment, so that the visual effect of the non-shielding part model can be kept, and the target part model is positioned in an external open area of the target equipment model, and the non-shielding part model in the target part model is kept, so that the relatively complete overall impression of the target equipment model can be given to a user as far as possible, and the observation and judgment of the user are facilitated. In addition, the target part model is colored, so that the target part model can be highlighted and distinguished from other equipment part models, and the user can observe the target part model conveniently.

For example, when the total projection coverage ratio (e.g. 70%) exceeds a set ratio (e.g. 50%), the manner of the whole device model is not favorable for the user to observe, so the server may generate a display view frame on the projection plane XOY, where the display view frame is used to define the display range of the target device model, and the portion of the target device model outside the display view frame is not displayed.

The server may then project a set of points P corresponding to the projection plane XOY based on the model of the target part_ADetermining the display center of the model display surface (the reference point O can be used as the display center), and then determining the display center and the frame center of the display view frame (which can pass through the coordinate range P)_EFinding the center coordinates of the display view frame to determine the center of the frame), and adjusting the relative size relationship between the target device model and the display view frame so that the percentage of the model display surface in the display view frame reaches a first percentage range (for example, the percentage of the model display surface in the display view frame needs to reach 10% or more), at which time, the corresponding coordinate range of the display view frame on the projection plane XOY is P_E. Therefore, the target equipment model and the display view frame can be adjusted to be suitable for observing relative sizes, so that the display key points of the target part model can be conveniently displayed, and the observation by a user is facilitated.

Thereafter, the server may project and deduplicate the projection point set P on the projection plane XOY based on each equipment part model in the target equipment model_FjDetermining that there is at least one proxel coordinate located in coordinate range P_EA plurality of projection point sets P within_Fj' and determining each set of projection points P_Fj' the respectively corresponding equipment part models are drawing frame display part models. Can high-efficient and accurately determine the picture frame show part model in the picture frame is looked in the show like this to the realization is to the show of picture frame show part model, and can sieve the equipment part model outside the picture frame is looked in the show, reduces data processing volume, promotes the operating efficiency of method.

Then, the server can determine a second adjacent part model having a direct contact relation or a direct connection relation with the target part model from the picture frame display part model, perform primary rendering on the target part model and the second adjacent part model, and perform secondary rendering on the equipment part model except the target part model and the second adjacent part model in the picture frame display part model, wherein the primary rendering is finer than the secondary rendering. Therefore, different part models can be subjected to differentiated rendering, the rendering precision of the target part model and the second adjacent part model is ensured, a user can conveniently and clearly observe the details (such as model, characteristics, installation position, matching mode and the like) of the equipment part models, and for other part models (the importance degree in the display is relatively low, the reflected information is relatively less), the rendering with slightly low fineness can be performed, so that the rendering speed is increased, and the operation efficiency of the method is improved.

For each frame display part model, the server may calculate a projection point set P corresponding to the projection plane XOY of the frame display part model_Fj' projection point set P corresponding to target part model on projection plane XOY_AThe intersection P between_GjIf the intersection P is_GjFor the empty set, this intersection P is determined_GjThe corresponding picture frame display part model is a non-shielding part model, if the intersection P is_GjNot being an empty set, determining the intersection P_GjAnd the corresponding picture frame display part model is a second shielding part model, and the second shielding part model is subjected to translucency treatment.

In this way, the projection point set P can be judged_Fj' AND projection point set P_AThe intersection P between_GjWhether the model is an empty set or not is determined to determine whether the picture frame display part model is a second shielding part model or not, so that the second shielding part model is subjected to translucency processing, the target part model is prevented from being shielded in a non-perspective manner, and the characteristics of the target part model can be well displayed. The non-shielding part model is not subjected to transparentization or translucency treatment, so that the visual effect of the non-shielding part model can be kept, and the target part model is positioned in an external open area of the target equipment model, and the non-shielding part model in the target part model is kept, so that the relatively complete overall impression of the target equipment model can be given to a user as far as possible, and the observation and judgment of the user are facilitated.

Then, the server can color the target part model, can highlight the target part model and is different from other equipment part models, so that the user can observe the target part model conveniently.

And when the position of the part model is of a second position type, the target part model is positioned in the internal closed area of the target equipment model and is completely shielded by other equipment part models in the target equipment model under the reference display angle. That is, the observation of the target part model, such as the motor model in the wheel cutter model, cannot be achieved outside the target equipment model.

Based on the above, the server may generate a display view frame on the projection plane XOY, where the display view frame is used to define a display range of the target device model, and a portion of the target device model outside the display view frame is not displayed.

The server may then project a set of points P corresponding to the projection plane XOY based on the model of the target part_ADetermining a display center of the model display surface, coinciding the display center with a frame center of the display view frame, and adjusting a relative size relationship between the target device model and the display view frame so that a ratio of the model display surface in the display view frame reaches a second ratio range (for example, adjusted to 25% or more, for example, 30%), and at this time, a corresponding coordinate range of the display view frame on the projection plane XOY is P_H. Therefore, the target equipment model and the display view frame can be adjusted to be suitable for observing relative sizes, so that the display key points of the target part model can be conveniently displayed, and the observation by a user is facilitated.

Thereafter, the server may project and deduplicate the projection point set P on the projection plane XOY based on each equipment part model in the target equipment model_KjDetermining that there is at least one proxel coordinate located in coordinate range P_HA plurality of projection point sets P within_Kj' and determining each set of projection points P_Kj' the respectively corresponding equipment part models are drawing frame display part models. Can high-efficient and accurately determine the picture frame show part model in the picture frame of show like this to the realization is to the show of picture frame show part model, and can sieve out the exhibition and showAnd the model of the equipment part outside the view frame is shown, so that the data processing amount is reduced, and the operation efficiency of the method is improved.

The server can also determine a third adjacent part model having a direct contact relation or a direct connection relation with the target part model from the picture frame display part model, perform primary rendering on the target part model and the third adjacent part model, and perform secondary rendering on the equipment part model except the target part model and the third adjacent part model in the picture frame display part model, wherein the primary rendering is finer than the secondary rendering. Therefore, different part models can be subjected to differentiated rendering, the rendering precision of the target part model and a third adjacent part model is ensured, a user can conveniently and clearly observe the details (such as model, characteristics, installation position, matching mode and the like) of the equipment part models, and for other part models (the importance degree in the display is relatively low, the reflected information is relatively less), the rendering with slightly low fineness can be performed, so that the rendering speed is increased, and the operation efficiency of the method is improved.

For each frame display part model, the server may calculate a projection point set P corresponding to the frame display part model on the projection plane XOY_Kj' projection point set P corresponding to target part model on projection plane XOY_AThe intersection P between_LjIf the intersection P is_LjFor the empty set, this intersection P is determined_LjThe corresponding picture frame display part model is a non-shielding part model, if the intersection P is_LjNot being an empty set, determining the intersection P_LjAnd the corresponding picture frame display part model is a third shielding part model, the third shielding part model is subjected to translucency treatment, and the non-shielding part model is subjected to full transparence treatment.

In this way, the projection point set P can be judged_Kj' AND projection point set P_AThe intersection P between_LjWhether the model is an empty set or not is determined to determine whether the picture frame display part model is a third shielding part model or not, so that the third shielding part model is subjected to translucency treatment, the target part model is prevented from being shielded in a non-perspective manner, and the target zero can be well displayedThe characteristics of the piece model. The non-shielding part model is further subjected to full-transparency processing, shielding of the non-shielding part model can be prevented, the target part model is located in the inner closed area of the target equipment model, integrity of the equipment model does not need to be considered, the inner equipment part model (particularly a third adjacent part model located behind the target part model) can be better displayed, and therefore observation and judgment of a user are facilitated.

In addition, the server can color the target part model, highlight the target part model and distinguish the target part model from other equipment part models, so that the user can observe the target part model conveniently.

After obtaining the processed target device model, the server may send the corresponding processed target device model (or corresponding processing parameters) to the client, so as to display the processed target device model (i.e., display the target part model) on the client, and of course, in the case of having a display view frame, the server may send the obtained processed frame display part model (or corresponding processing parameters) in the display view frame to the client, so as to display the processed frame display part model on the client.

Referring to fig. 2, fig. 2 is a schematic view of a model display device 10 based on a material turnover platform according to an embodiment of the present application. In this embodiment, the model display device 10 based on the material turnover platform includes:

the target equipment model obtaining unit 11 is configured to obtain a target equipment model, where the target equipment model is a three-dimensional model corresponding to target equipment and includes multiple equipment part models;

the part model parameter acquiring unit 12 is used for identifying a part model of a target part model, revealing a part model view angle of a reference display angle of the target part model, and revealing a part model position of a relative position of the target part model in the target equipment model;

and the target equipment model processing unit 13 is configured to process the target equipment model according to the part model identifier, the part model view angle, and the part model position in the part model parameter, so as to obtain a processed target equipment model for display, where no other equipment part model generates non-perspective occlusion on a model display surface of the target equipment model displayed by the processed target equipment model.

In this embodiment, the target device model processing unit 13 is specifically configured to determine, according to the part model identifier, a target part model to be displayed from a plurality of device part models of the target device model; determining a model display surface of the target part model at a reference display angle according to the part model view angle; and processing the target equipment model according to the model display surface and the part model position.

In this embodiment, the target device model processing unit 13 is specifically configured to determine, from the target part model, a point with the largest distance in the direction of the reference display angle as a reference point O, construct a three-dimensional coordinate system with the reference point as an origin and the opposite direction of the reference display angle as a Z-axis direction, and determine a projection plane XOY; projecting each point on the target part model onto a projection plane XOY by taking the three-dimensional coordinate system as a reference to obtain a projection point set P subjected to projection and de-weighting_AAnd the model is used as a model display surface of the target part model at a reference display angle.

In this embodiment, the position of the part model is a first position type, where the first position type indicates that the target part model is located in an external open area of the target device model, and the target part model located in the external open area is not completely blocked by other device part models in the target device model at the reference display angle, and the target device model processing unit 13 is specifically configured to screen other device part models except the target part model in the target device model by using a three-dimensional coordinate system as a reference, and determine all potential blocking part models with forward point locations, where a Z coordinate of the forward point location indicates a positive number, and the number of the potential blocking part models is n; aiming at the ith potential shielding part model, taking the three-dimensional coordinate system as a reference to obtain the modelProjecting each point on the potential shielding part model onto a projection plane XOY to obtain a projection point set P with projection and de-weight_BiWherein i =1, 2, 3, … …, n; solving all projection point sets P_BiUnion P of_B：P_B=P_B1∪P_B2∪P_B3∪……∪P_Bn(ii) a Finding a set of projection points P_AAnd P_BOf (b) intersection P_C：P_C=P_A∩P_B(ii) a Computing the intersection P_CAnd a set of projection points P_AObtaining the total projection coverage proportion of all the potentially-shielded part models in the target equipment model on the model display surface; and carrying out differentiation processing on the equipment part model in the target equipment model according to the total projection coverage proportion.

In this embodiment, the total projection coverage ratio does not exceed a set ratio, and the target device model processing unit 13 is specifically configured to determine a first adjacent part model having a direct contact relationship or a direct connection relationship with the target part model from the target device model, perform primary rendering on the target part model and the first adjacent part model, and perform secondary rendering on a remaining part model, where the primary rendering is finer than the secondary rendering, and the remaining part model represents a device part model other than the target part model and the first adjacent part model in the target device model; calculating a projection point set P corresponding to each potential shielding part model on the projection plane XOY_BiA projection point set P corresponding to the target part model on a projection plane XOY_AThe intersection P between_DiAnd judge the intersection P_DiIf it is empty, if it is intersected with P_DiFor the empty set, determining the corresponding potential shielding part model as a non-shielding part model, and if the intersection P is formed_DiIf not, determining the corresponding potential shielding part model as a first shielding part model, and performing translucency processing on the first shielding part model; coloring the target part model.

In this embodiment, the total proportion of the projection coverage exceeds a set proportion, and the target device model isA physical unit 13, configured to generate a display view frame on a projection plane XOY, where the display view frame is used to define a display range of the target equipment model, and a portion of the target equipment model outside the display view frame is not displayed; projection point set P corresponding to projection plane XOY based on target part model_ADetermining a display center of the model display surface; superposing the display center with a frame center of the display view frame, and adjusting a relative size relationship between the target equipment model and the display view frame to make an occupation ratio of the model display surface in the display view frame reach a first occupation ratio range, wherein a corresponding coordinate range of the display view frame on a projection plane XOY is P_E(ii) a Projection point set P after projection and de-duplication on projection plane XOY based on each equipment part model in the target equipment model_FjDetermining that there is at least one proxel coordinate located in coordinate range P_EA plurality of projection point sets P within_Fj' and determining each set of projection points P_Fj' the respectively corresponding equipment part models are drawing frame display part models; determining a second adjacent part model which has a direct contact relation or a direct connection relation with the target part model from the picture frame display part model, performing primary rendering on the target part model and the second adjacent part model, and performing secondary rendering on equipment part models except the target part model and the second adjacent part model in the picture frame display part model, wherein the primary rendering is finer than the secondary rendering; aiming at each picture frame display part model, calculating a projection point set P corresponding to the picture frame display part model on a projection plane XOY_Fj' projection point set P corresponding to the target part model on projection plane XOY_AThe intersection P between_GjIf the intersection P is_GjFor the empty set, this intersection P is determined_GjThe corresponding picture frame display part model is a non-shielding part model, if the intersection P is_GjNot being an empty set, determining the intersection P_GjThe corresponding picture frame display part model is a second shielding part model, and the second shielding part model is subjected to translucency treatment; for the targetColoring the part model; correspondingly, the processed target equipment model is obtained for displaying, that is, the processed drawing frame display part model in the display view frame is obtained for displaying.

In this embodiment, the position of the part model is a second position type, where the second position type indicates that the target part model is located in an internal closed area of the target equipment model, the target part model located in the internal closed area is completely blocked by other equipment part models in the target equipment model under the reference display angle, the target equipment model processing unit 13 is specifically configured to generate a display view frame on a projection plane XOY, the display view frame is used to define a display range of the target equipment model, and a part of the target equipment model located outside the display view frame is not displayed; projection point set P corresponding to projection plane XOY based on target part model_ADetermining a display center of the model display surface; superposing the display center with a frame center of the display view frame, and adjusting a relative size relationship between the target equipment model and the display view frame to make an occupation ratio of the model display surface in the display view frame reach a second occupation ratio range, wherein a corresponding coordinate range of the display view frame on a projection plane XOY is P_H(ii) a Projection point set P after projection and de-duplication on projection plane XOY based on each equipment part model in the target equipment model_KjDetermining that there is at least one proxel coordinate located in coordinate range P_HA plurality of projection point sets P within_Kj' and determining each set of projection points P_Kj' the respectively corresponding equipment part models are drawing frame display part models; determining a third adjacent part model having a direct contact relation or a direct connection relation with the target part model from the picture frame display part model, performing primary rendering on the target part model and the third adjacent part model, and performing secondary rendering on equipment part models except the target part model and the third adjacent part model in the picture frame display part model, wherein the primary rendering is finer than the secondary rendering; for eachA picture frame display part model, calculating a projection point set P corresponding to the picture frame display part model on the projection plane XOY_Kj' projection point set P corresponding to the target part model on projection plane XOY_AThe intersection P between_LjIf the intersection P is_LjFor the empty set, this intersection P is determined_LjThe corresponding picture frame display part model is a non-shielding part model, if the intersection P is_LjNot being an empty set, determining the intersection P_LjThe corresponding picture frame display part model is a third shielding part model, the third shielding part model is subjected to translucency treatment, and the non-shielding part model is subjected to full transparence treatment; coloring the target part model; correspondingly, the processed target equipment model is obtained for displaying, that is, the processed drawing frame display part model in the display view frame is obtained for displaying.

The embodiment provides a storage medium, the storage medium includes a stored program, and when the program runs, the device in which the storage medium is located is controlled to execute the model display method based on the material turnover platform in the embodiment.

The embodiment also provides a server, which includes a memory and a processor, where the memory is used to store information including program instructions, and the processor is used to control execution of the program instructions, and the program instructions are loaded and executed by the processor to implement the model display method based on the material turnover platform in the embodiment.

To sum up, the embodiment of the present application provides a model display method, apparatus, medium, and server based on a material turnover platform, by obtaining a target device model (a three-dimensional model corresponding to a target device and including a plurality of device part models), and obtaining part model parameters (including a part model identifier, a part model view angle, and a part model position), the target device model is processed according to the part model identifier, the part model view angle, and the part model position, so as to obtain a processed target device model for display, wherein the processed target device model displayed by the target device model has no non-perspective shielding generated by other device part models on a model display surface thereof. The target equipment model can represent the construction equipment to be displayed (specifically to the equipment model corresponding to the equipment model), the parameters of the part model can determine the equipment parts to be displayed, the part model identification, the part model visual angle and the part model position can be used for correspondingly processing the target equipment model, and the target part model displayed by the processed target equipment model has no non-perspective shielding generated by other equipment part models on the model display surface, so that the displayed part model can reflect richer information as much as possible (such as applicable construction equipment, installation positions in the construction equipment, matching modes with other parts and the like), a user can conveniently, intuitively, efficiently and accurately determine whether the displayed part model is the required material based on the display key points, the requirement on the professional knowledge of the material turnover personnel is reduced (because the rich information can be intuitively given through the content displayed by the model, the user of being convenient for compares with own required goods and materials), can also realize the standardized show of goods and materials image, can effectively avoid the problem that the goods and materials are confused, avoid the production of unexpected cost (for example purchased wrong goods and materials, lost time cost and economic cost).

In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A model display method based on a material turnover platform is characterized by comprising the following steps:

acquiring a target equipment model, wherein the target equipment model is a three-dimensional model corresponding to target equipment and comprises a plurality of equipment part models;

acquiring part model parameters, wherein the part model parameters comprise a part model identifier for revealing a target part model to be displayed, a part model view angle for revealing a reference display angle of the target part model, and a part model position for revealing a relative position of the target part model in the target equipment model;

and processing the target equipment model according to the part model identification, the part model view angle and the part model position in the part model parameters to obtain a processed target equipment model for displaying, wherein the target equipment model displayed by the processed target equipment model is not shielded by other equipment part models on the model display surface.

2. The model display method based on the material turnover platform as claimed in claim 1, wherein the processing of the target equipment model according to the part model identification, the part model view angle and the part model position in the part model parameters comprises:

determining a target part model to be displayed from a plurality of equipment part models of the target equipment model according to the part model identification;

determining a model display surface of the target part model at a reference display angle according to the part model view angle;

and processing the target equipment model according to the model display surface and the part model position.

3. The model display method based on the material turnover platform as claimed in claim 2, wherein the determining the model display surface of the target part model at a reference display angle according to the part model view angle comprises:

determining a point with the largest distance in the direction of the reference display angle from the target part model as a reference point O, constructing a three-dimensional coordinate system by taking the reference point as an origin and the opposite direction of the reference display angle as a Z-axis direction, and determining a projection plane XOY;

projecting each point on the target part model onto a projection plane XOY by taking the three-dimensional coordinate system as a reference to obtain a projection point set P subjected to projection and de-weighting_AAnd the model is used as a model display surface of the target part model at a reference display angle.

4. The model display method based on the material turnover platform as claimed in claim 3, wherein the part model position is a first position type, the first position type indicates that the target part model is located in an external open area of the target equipment model, the target part model located in the external open area is not completely blocked by other equipment part models in the target equipment model at the reference display angle, and the processing of the target equipment model according to the model display surface and the part model position comprises:

screening other equipment part models except the target part model in the target equipment model by taking a three-dimensional coordinate system as a reference, and determining all potential shielding part models with forward point positions, wherein the forward point positions represent that the Z coordinate of the point positions is a positive number, and the number of the potential shielding part models is n;

aiming at the ith potential shielding part model, projecting each point on the potential shielding part model onto a projection plane XOY by taking the three-dimensional coordinate system as a reference to obtain a projection point set P with projection and de-weight_BiWherein i =1, 2, 3, … …, n;

solving all projection point sets P_BiUnion P of_B：

P_B=P_B1∪P_B2∪P_B3∪……∪P_Bn；

Finding a set of projection points P_AAnd P_BOf (b) intersection P_C：

P_C=P_A∩P_B；

Computing the intersection P_CAnd a set of projection points P_ATo obtain the target setThe total proportion of projection coverage of all potential shielding part models in the prepared models on the model display surface is calculated;

and carrying out differentiation processing on the equipment part model in the target equipment model according to the total projection coverage proportion.

5. The model display method based on the material turnover platform as claimed in claim 4, wherein the total proportion of projection coverage does not exceed a set proportion, and the differential processing of the equipment part model in the target equipment model comprises:

determining a first adjacent part model having a direct contact relation or a direct connection relation with the target part model from the target equipment model, performing primary rendering on the target part model and the first adjacent part model, and performing secondary rendering on the rest part model, wherein the primary rendering is finer than the secondary rendering, and the rest part model represents an equipment part model except the target part model and the first adjacent part model in the target equipment model;

calculating a projection point set P corresponding to each potential shielding part model on the projection plane XOY_BiA projection point set P corresponding to the target part model on a projection plane XOY_AThe intersection P between_DiAnd judge the intersection P_DiIf it is empty, if it is intersected with P_DiFor the empty set, determining the corresponding potential shielding part model as a non-shielding part model, and if the intersection P is formed_DiIf not, determining the corresponding potential shielding part model as a first shielding part model, and performing translucency processing on the first shielding part model;

coloring the target part model.

6. The model display method based on the material turnover platform as claimed in claim 4, wherein the total proportion of the projection coverage exceeds a set proportion, and the differential processing of the equipment part model in the target equipment model comprises:

generating a display view frame on a projection plane XOY, wherein the display view frame is used for limiting the display range of the target equipment model, and the part of the target equipment model, which is positioned outside the display view frame, is not displayed;

projection point set P corresponding to projection plane XOY based on target part model_ADetermining a display center of the model display surface;

superposing the display center with a frame center of the display view frame, and adjusting a relative size relationship between the target equipment model and the display view frame to make an occupation ratio of the model display surface in the display view frame reach a first occupation ratio range, wherein a corresponding coordinate range of the display view frame on a projection plane XOY is P_E；

Projection point set P after projection and de-duplication on projection plane XOY based on each equipment part model in the target equipment model_FjDetermining that there is at least one proxel coordinate located in coordinate range P_EA plurality of projection point sets P within_Fj' and determining each set of projection points P_Fj' the respectively corresponding equipment part models are drawing frame display part models;

determining a second adjacent part model which has a direct contact relation or a direct connection relation with the target part model from the picture frame display part model, performing primary rendering on the target part model and the second adjacent part model, and performing secondary rendering on equipment part models except the target part model and the second adjacent part model in the picture frame display part model, wherein the primary rendering is finer than the secondary rendering;

aiming at each picture frame display part model, calculating a projection point set P corresponding to the picture frame display part model on a projection plane XOY_Fj' projection point set P corresponding to the target part model on projection plane XOY_AThe intersection P between_GjIf the intersection P is_GjFor the empty set, this intersection P is determined_GjThe corresponding picture frame display part model is a non-shielding part model, if the intersection P is_GjNot being an empty set, determining the intersection P_GjThe corresponding picture frame display part model is a second shielding part model, and the second shielding part model is subjected to translucency treatment;

coloring the target part model;

correspondingly, the processed target equipment model is obtained for displaying, that is, the processed drawing frame display part model in the display view frame is obtained for displaying.

7. The material turnover platform-based model display method according to claim 3, wherein the part model position is a second position type, the second position type indicates that the target part model is located in an internal closed area of the target equipment model, the target part model located in the internal closed area is completely blocked by other equipment part models in the target equipment model at the reference display angle, and the processing of the target equipment model according to the model display surface and the part model position comprises:

generating a display view frame on a projection plane XOY, wherein the display view frame is used for limiting the display range of the target equipment model, and the part of the target equipment model, which is positioned outside the display view frame, is not displayed;

projection point set P corresponding to projection plane XOY based on target part model_ADetermining a display center of the model display surface;

superposing the display center with a frame center of the display view frame, and adjusting a relative size relationship between the target equipment model and the display view frame to make an occupation ratio of the model display surface in the display view frame reach a second occupation ratio range, wherein a corresponding coordinate range of the display view frame on a projection plane XOY is P_H；

Projection point set P after projection and de-duplication on projection plane XOY based on each equipment part model in the target equipment model_KjDetermining that there is at least one proxel coordinate located in coordinate range P_HA plurality of projection point sets P within_Kj', and determine eachA set of projection points P_Kj' the respectively corresponding equipment part models are drawing frame display part models;

determining a third adjacent part model having a direct contact relation or a direct connection relation with the target part model from the picture frame display part model, performing primary rendering on the target part model and the third adjacent part model, and performing secondary rendering on equipment part models except the target part model and the third adjacent part model in the picture frame display part model, wherein the primary rendering is finer than the secondary rendering;

aiming at each picture frame display part model, calculating a projection point set P corresponding to the picture frame display part model on a projection plane XOY_Kj' projection point set P corresponding to the target part model on projection plane XOY_AThe intersection P between_LjIf the intersection P is_LjFor the empty set, this intersection P is determined_LjThe corresponding picture frame display part model is a non-shielding part model, if the intersection P is_LjNot being an empty set, determining the intersection P_LjThe corresponding picture frame display part model is a third shielding part model, the third shielding part model is subjected to translucency treatment, and the non-shielding part model is subjected to full transparence treatment;

coloring the target part model;

correspondingly, the processed target equipment model is obtained for displaying, that is, the processed drawing frame display part model in the display view frame is obtained for displaying.

8. The utility model provides a model display device based on goods and materials turnover platform which characterized in that includes:

the target equipment model obtaining unit is used for obtaining a target equipment model, wherein the target equipment model is a three-dimensional model corresponding to target equipment and comprises a plurality of equipment part models;

the part model parameter acquisition unit is used for identifying a part model of a target part model, revealing a part model view angle of a reference display angle of the target part model and revealing a part model position of a relative position of the target part model in the target equipment model;

and the target equipment model processing unit is used for processing the target equipment model according to the part model identification, the part model visual angle and the part model position in the part model parameters to obtain a processed target equipment model for displaying, wherein the processed target equipment model displayed by the target equipment model is not blocked in a non-perspective manner by other equipment part models on the model display surface.

9. A storage medium, characterized in that the storage medium comprises a stored program, wherein when the program runs, the storage medium is controlled to execute the model display method based on the material turnover platform according to any one of claims 1 to 7.

10. A server, comprising a memory for storing information comprising program instructions and a processor for controlling execution of the program instructions, the program instructions being loaded and executed by the processor to implement the material turnaround platform based model exhibition method of any one of claims 1 to 7.

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