CN111784823B - Light-weight three-dimensional model mapping-prevention display method and device and storage medium - Google Patents
Light-weight three-dimensional model mapping-prevention display method and device and storage medium Download PDFInfo
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Abstract
The disclosure relates to a lightweight three-dimensional model mapping-prevention display method and device and a storage medium. The method for displaying the light-weight three-dimensional model for preventing mapping comprises the following steps: performing perspective deformation treatment on the light three-dimensional model to be displayed; and displaying the processed lightweight three-dimensional model. According to the method and the device, the dimension proportion is adjusted through the integral display of the model, and the mapping prevention problem during the display of the lightweight three-dimensional model can be well achieved.
Description
Technical Field
The disclosure relates to the field of model release, in particular to a lightweight three-dimensional model mapping-preventing display method and device and a storage medium.
Background
In engineering applications, there is a wide variety of requirements for three-dimensional model mapping prevention. For example, in the processes of collaborative development, product use, maintenance, repair and the like of products, a product development organization has the requirements of submitting random technical files to clients and releasing three-dimensional models, and the product technical files based on the three-dimensional models can more intuitively display information such as product structures, installation, use, maintenance and repair and the like, and are development trends of the random technical files.
Disclosure of Invention
The inventors found through research that: the lightweight three-dimensional model of the related art is easy to measure the size of the three-dimensional model in a computer, a tablet and other equipment by a third party through modes such as model mapping, screen mapping and the like, so that product design information is stolen and the product is imitated. Therefore, there is an urgent need in engineering to control the display of three-dimensional models and prevent the mapping of model information by third parties.
In view of at least one of the above technical problems, the present disclosure provides a method and apparatus for mapping-preventing display of a lightweight three-dimensional model, and a storage medium, which solve the problem that the released lightweight three-dimensional model is easily mapped and thus the design information is stolen.
According to one aspect of the present disclosure, there is provided a lightweight three-dimensional model mapping-preventing display method including:
performing perspective deformation treatment on the light three-dimensional model to be displayed;
and displaying the processed lightweight three-dimensional model.
In some embodiments of the present disclosure, the lightweight three-dimensional model mapping prevention display method further includes:
and performing random deformation processing on the light-weight three-dimensional model to be displayed, and then performing the step of displaying the processed light-weight three-dimensional model.
In some embodiments of the present disclosure, the lightweight three-dimensional model mapping prevention display method further includes:
in the light three-dimensional model display process, view real-time management and control are carried out, so that a user is prevented from surveying and mapping the model in a front view angle.
In some embodiments of the present disclosure, the performing view real-time management and control, preventing a user from mapping a model at a front view perspective includes:
monitoring a state adjustment command of the lightweight three-dimensional model in real time;
judging whether the view direction of the light three-dimensional model at the next moment is a front view direction or not according to the state adjustment command under the condition that the view direction of the light three-dimensional model is changed;
when the view direction at the next time is the front view direction, the current operation is not performed.
In some embodiments of the present disclosure, the lightweight three-dimensional model mapping prevention display method further includes:
encrypting the lightweight three-dimensional model file by a data encryption technology;
and decrypting and loading the light-weight three-dimensional model file, and then executing the step of performing perspective deformation processing on the light-weight three-dimensional model to be displayed.
In some embodiments of the present disclosure, the performing perspective deformation processing on the lightweight three-dimensional model to be displayed includes:
searching a plurality of groups of mapping points related to the lightweight three-dimensional model on a screen;
determining a perspective coordinate matrix to obtain three-dimensional space coordinates of the mapping points;
converting the three-dimensional space coordinates of the mapping points;
and displaying the new coordinates on the screen.
In some embodiments of the present disclosure, the performing random deformation processing on the lightweight three-dimensional model to be displayed includes:
determining key points and reading coordinates of the key points;
determining deformation parameters of the coordinates of the key points in three coordinate directions;
determining a coordinate adjustment matrix;
carrying out coordinate adjustment matrix solving on the coordinates of the key points;
and displaying the new coordinates on the screen.
In some embodiments of the present disclosure, the determining the deformation parameters of the coordinates of the keypoint in three coordinate directions includes:
and randomly determining deformation parameters of the coordinates of the key points in three coordinate directions.
According to another aspect of the present disclosure, there is provided a lightweight three-dimensional model mapping-preventing display device including:
the perspective processing module is used for performing perspective deformation processing on the light three-dimensional model to be displayed;
and the display module is used for displaying the processed lightweight three-dimensional model.
In some embodiments of the present disclosure, the lightweight three-dimensional model anti-mapping display apparatus is configured to perform operations to implement the lightweight three-dimensional model anti-mapping display method described in any of the embodiments above.
According to another aspect of the present disclosure, there is provided a lightweight three-dimensional model mapping-preventing display device including:
a memory for storing instructions;
and a processor configured to execute the instructions, so that the lightweight three-dimensional model anti-mapping display apparatus performs operations for implementing the lightweight three-dimensional model anti-mapping display method according to any one of the embodiments.
According to another aspect of the disclosure, there is provided a computer readable storage medium storing computer instructions that when executed by a processor implement a lightweight three-dimensional model anti-mapping display method according to any of the embodiments described above.
According to the method and the device, the dimension proportion is adjusted through the integral display of the model, and the mapping prevention problem during the display of the lightweight three-dimensional model can be well achieved.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.
Fig. 1 is a schematic diagram of some embodiments of a lightweight three-dimensional model anti-mapping display method of the present disclosure.
Fig. 2a is a schematic diagram illustrating the effect of a lightweight three-dimensional model before deformation in some embodiments of the present disclosure.
Fig. 2b is a schematic view of the effect of the light three-dimensional model of fig. 2a after perspective deformation.
Fig. 3 is a schematic diagram of a perspective deformation process in some embodiments of the present disclosure.
Fig. 4 is a schematic diagram of other embodiments of the lightweight three-dimensional model anti-mapping display method of the present disclosure.
Fig. 5a is a schematic diagram of encrypting a foreground file in some embodiments of the present disclosure.
Fig. 5b is a schematic diagram of the background file of fig. 5a after encryption.
Fig. 6 is a schematic diagram of a random deformation process in some embodiments of the present disclosure.
Fig. 7a is a schematic diagram illustrating the effect of a lightweight three-dimensional model before deformation in some embodiments of the present disclosure.
Fig. 7b is a schematic view of the effect of the light three-dimensional model of fig. 7a after random deformation.
Fig. 8 is a schematic diagram of some embodiments of a lightweight three-dimensional model anti-mapping display device of the present disclosure.
Fig. 9 is a schematic diagram of other embodiments of a lightweight three-dimensional model anti-mapping display device of the present disclosure.
Fig. 10 is a schematic view of still another embodiment of a lightweight three-dimensional model anti-mapping display device of the present disclosure.
Detailed Description
The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. Based on the embodiments in this disclosure, all other embodiments that a person of ordinary skill in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless it is specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
The inventors found through research that: related technology three-dimensional model webpage display is applied to many scientific research institutions and enterprises, and the model display cancels some key characteristics through light weight treatment, but has the following problems:
1. the critical assembly or tooling dimensions are not treated and are easily measured as is the design model.
2. The overall dimension ratio is the same as the design model ratio, and therefore it is easy to make a ratio calculation by a certain part dimension to obtain the overall dimension.
3. The view direction of the model is not shielded or treated, and is easy to adjust to the front view direction, so that the model is easy to measure.
In view of at least one of the above technical problems, the present disclosure provides a lightweight three-dimensional model mapping prevention display method and device, and a storage medium, and the embodiments of the present disclosure are described below by way of specific embodiments.
Fig. 1 is a schematic diagram of some embodiments of a lightweight three-dimensional model anti-mapping display method of the present disclosure. Preferably, the present embodiment may be performed by the lightweight three-dimensional model anti-mapping display device of the present disclosure. The method of the embodiment of fig. 1 may comprise steps 11 and 12, wherein:
and 11, performing perspective deformation processing on the light three-dimensional model to be displayed.
In some embodiments of the present disclosure, the lightweight model is a three-dimensional model that is lightweight towards the de-characterization of web page presentations, but that retains geometric appearance.
And step 12, displaying the processed lightweight three-dimensional model.
In some embodiments of the present disclosure, step 11 and step 12 may include: when the light-weight three-dimensional model is displayed, perspective deformation processing is carried out on the light-weight three-dimensional model displayed on the screen, so that the light-weight model has the effect of approaching the size to the far size.
Fig. 2a is a schematic diagram illustrating the effect of a lightweight three-dimensional model before deformation in some embodiments of the present disclosure. Fig. 2b is a schematic view of the effect of the light three-dimensional model of fig. 2a after perspective deformation. As shown in fig. 2b, the perspective deformation treatment has the effect of making the lightweight model have a near-large and far-small size.
Fig. 3 is a schematic diagram of a perspective deformation process in some embodiments of the present disclosure. As shown in fig. 3, the perspective deformation processing method of the present disclosure (e.g., step 11 of the embodiment of fig. 1) may include steps 111-113, wherein:
step 111, searching n groups of mapping points related to the lightweight three-dimensional model on the screen, wherein n is a natural number greater than 1.
In some embodiments of the present disclosure, n may be 4.
And step 112, determining a perspective coordinate matrix to obtain the three-dimensional space coordinates of the mapping points.
In some embodiments of the present disclosure, the perspective coordinate matrix may be the perspective coordinate matrix of formula (1).
Step 113, converting the three-dimensional space coordinates of the mapping points, as shown in fig. 3, wherein (X, Y) is the original coordinates of the mapping points, and (X, Y, Z) is the new coordinates of the mapping points; and then a new coordinate display is performed on the screen.
The model perspective transformation of the above embodiment of the present disclosure is a transformation mapping that transforms a two-dimensional view of a screen presentation into three-dimensional space coordinates and then into two-dimensional coordinates of the screen.
According to the light-weight three-dimensional model mapping-prevention display method provided by the embodiment of the disclosure, the model displayed on the screen can be subjected to perspective deformation treatment, so that the model has the effect of being close to the size. According to the embodiment of the disclosure, the dimension ratio of the whole display model is adjusted, so that the mapping prevention problem during the display of the lightweight three-dimensional model can be well realized.
The above embodiments of the present disclosure generate distortion effects on a three-dimensional model through perspective projection techniques, so that mapping can be prevented.
The anti-mapping of the above embodiments of the present disclosure refers to: when the light three-dimensional model is released, special deformation processing is carried out on the display of the three-dimensional model, so that a browser cannot obtain design information such as the size, the precision and the like of the parts in a screen mapping mode under the condition of visually consulting the geometric appearance of the product.
Fig. 4 is a schematic diagram of other embodiments of the lightweight three-dimensional model anti-mapping display method of the present disclosure. Preferably, the present embodiment may be performed by the lightweight three-dimensional model anti-mapping display device of the present disclosure. The method of the fig. 4 embodiment may include steps 40-49, wherein:
and step 40, encrypting the lightweight three-dimensional model file through a data encryption technology.
In some embodiments of the present disclosure, step 40 may include: and opening a background file of the lightweight three-dimensional model, and encrypting the background file of the lightweight three-dimensional model through a data encryption technology.
Fig. 5a is a schematic diagram of encrypting a foreground file in some embodiments of the present disclosure. Fig. 5b is a schematic diagram of the background file of fig. 5a after encryption. As shown in fig. 5b, the background file of the model exhibits a ciphertext scrambling effect due to the encryption process.
The embodiment of the disclosure can prevent information leakage caused by cracking information in the model file by encrypting the model file.
And step 41, decrypting and loading the lightweight three-dimensional model file.
And 42, performing perspective deformation processing on the light three-dimensional model to be displayed. As shown in fig. 2b, the perspective deformation treatment has the effect of making the lightweight model have a near-large and far-small size.
In some embodiments of the present disclosure, step 42 may include steps 111-113 of the embodiment of fig. 3.
And 43, carrying out random deformation processing on the light three-dimensional model to be displayed.
Fig. 6 is a schematic diagram of a random deformation process in some embodiments of the present disclosure. As shown in fig. 6, the random deformation processing method of the present disclosure (e.g., step 43 of the embodiment of fig. 4) may include steps 431-434, wherein:
in step 431, the key point is determined and the coordinates of the key point are read.
Step 432, determining deformation parameters k of the coordinates of the key points in the directions X, Y, Z of the three coordinate directions x 、k y 、k z 。
In some embodiments of the present disclosure, step 432 may include: randomly determining deformation parameters k of key point coordinates in three coordinate directions x 、k y 、k z 。
In step 433, a coordinate adjustment matrix is determined.
In some embodiments of the present disclosure, the coordinate adjustment matrix may be a diagonal matrix as in step 434 of fig. 6, with diagonal element values of k x 、k y 、k z And 1.
Step 434, performing coordinate adjustment matrix solution on the key point coordinates, where S' is a new coordinate vector of the key point coordinates, and S is an original coordinate vector of the key point coordinates; and then, displaying new coordinates of the key points on the screen.
Fig. 7a is a schematic diagram illustrating the effect of a lightweight three-dimensional model before deformation in some embodiments of the present disclosure. Fig. 7b is a schematic view of the effect of the light three-dimensional model of fig. 7a after random deformation. As shown in fig. 7b, random deformations have significant dimensional variations in critical dimensions, but do not affect the functional description and component presentation.
Step 44, monitor the state adjustment command (control command) of the lightweight three-dimensional model in real time.
Step 45, it is determined whether the current state adjustment command is a rotation command (view direction change command). In case the current state adjustment command is a rotation command, step 47 is performed; otherwise, in case the current state adjustment command is not a rotation command, step 46 is performed.
Step 46, displaying the processed lightweight three-dimensional model; after that, the other steps of the present embodiment are not performed.
In some embodiments of the present disclosure, step 46 may include: the three-dimensional model is displayed by (Web Graphics Library, a 3D drawing protocol) technique.
Step 47, calculate the rotated position (view direction).
Step 48, judging whether the view direction at the next moment is the front view direction or not according to the rotated position. In the case where the view direction at the next time is the front view direction, step 49 is performed; otherwise, the view direction at the next moment is not the front view direction, step 46 is performed.
Step 49, the current operation is not performed, i.e. the rotation is not performed.
According to the embodiment of the disclosure, the three-dimensional model can be displayed through the WebGL technology, the light-weight three-dimensional model can be encrypted through the data encryption technology, slight distortion can be generated in the display process of the light-weight model through perspective deformation and random deformation, a user can be prevented from surveying and mapping the model in a front view through the view real-time management and control technology, and finally the aim of preventing the model from being surveyed is achieved.
According to the embodiment of the disclosure, the lightweight model three-dimensional model file is encrypted, so that a counterfeiter can be prevented from directly acquiring information through the file.
When the embodiment of the disclosure displays the model, perspective deformation processing can be performed on the model displayed on the screen, so that the model has the effect of being close to the size.
The above embodiments of the present disclosure can generate a difference between the display critical dimension and the actual dimension by performing a random deformation process on the model and assigning random parameters in three coordinates.
When the model is displayed, the embodiment of the disclosure can perform perspective deformation and random size deformation processing on the model, so that an observer cannot obtain accurate sizes through screen mapping under the condition of ensuring the display effect of the model.
When the user rotates the model again, the model can be prevented from staying in the front view direction by prejudging the view direction of the model.
The method for displaying the lightweight three-dimensional model in the anti-mapping mode can be used for solving the problem that the released lightweight three-dimensional model is easy to map and then design information is stolen, and mainly comprises adjustment of the overall display size proportion of the model, change of key size and shielding of front display. The above-described embodiments of the present disclosure have significant value for the production and distribution of three-dimensional model-based random technical documents (e.g., part books, operating manuals).
Fig. 8 is a schematic diagram of some embodiments of a lightweight three-dimensional model anti-mapping display device of the present disclosure. As shown in fig. 8, the lightweight three-dimensional model anti-mapping display device of the present disclosure may include a perspective processing module 81 and a display module 82, wherein:
and the perspective processing module 81 is used for performing perspective deformation processing on the light three-dimensional model to be displayed.
And the display module 82 is used for displaying the processed lightweight three-dimensional model.
In some embodiments of the present disclosure, perspective processing module 81 may be used to find multiple sets of mapping points on the screen that are relevant to the lightweight three-dimensional model; determining a perspective coordinate matrix to obtain three-dimensional space coordinates of the mapping points; converting the three-dimensional space coordinates of the mapping points; and instructs the display module 82 to present the new coordinates on the screen.
Based on the light three-dimensional model mapping prevention display device provided by the embodiment of the disclosure, the model displayed on the screen can be subjected to perspective deformation treatment, so that the model has the effect of being close to the size and far from the size. According to the embodiment of the disclosure, the dimension ratio of the whole display model is adjusted, so that the mapping prevention problem during the display of the lightweight three-dimensional model can be well realized.
The above embodiments of the present disclosure generate distortion effects on a three-dimensional model through perspective projection techniques, so that mapping can be prevented.
Fig. 9 is a schematic diagram of other embodiments of a lightweight three-dimensional model anti-mapping display device of the present disclosure. As shown in fig. 9, the lightweight three-dimensional model mapping prevention display device of the present disclosure may further include a random deformation processing module 83, wherein:
the random deformation processing module 83 is configured to perform random deformation processing on the light-weight three-dimensional model to be displayed, and then instruct the display module 82 to perform an operation of displaying the processed light-weight three-dimensional model.
In some embodiments of the present disclosure, the random deformation processing module 83 may be configured to determine keypoints and read the keypoint coordinates; determining deformation parameters of the coordinates of the key points in three coordinate directions; determining a coordinate adjustment matrix; carrying out coordinate adjustment matrix solving on the coordinates of the key points; and instructs the display module 82 to present the new coordinates on the screen.
In some embodiments of the present disclosure, the random deformation processing module 83 may be configured to randomly determine the deformation parameters of the keypoint coordinates in the three coordinate directions in determining the deformation parameters of the keypoint coordinates in the three coordinate directions.
The above embodiment of the disclosure gives random parameters in three coordinates by performing random deformation processing on the model, so that the difference between the displayed critical dimension and the actual dimension is generated.
In some embodiments of the present disclosure, as shown in fig. 9, the lightweight three-dimensional model mapping prevention display method may further include a view management module 84, wherein:
the view management and control module 84 is configured to perform view real-time management and control during the light three-dimensional model display process, so as to prevent a user from mapping the model in a front view.
In some embodiments of the present disclosure, view management and control module 84 may be used to monitor state adjustment commands of the lightweight three-dimensional model in real time; judging whether the view direction of the light three-dimensional model at the next moment is a front view direction or not according to the state adjustment command under the condition that the view direction of the light three-dimensional model is changed; when the view direction at the next time is the front view direction, the current operation is not performed.
When the user rotates the model again, the model can be prevented from staying in the front view direction by prejudging the view direction of the model.
In some embodiments of the present disclosure, as shown in fig. 9, the lightweight three-dimensional model mapping prevention display method may further include an encryption module 85 and a loading module 86, where:
and the encryption module 85 is used for encrypting the lightweight three-dimensional model file through a data encryption technology.
The loading module 86 is configured to decrypt and load the lightweight three-dimensional model file, and then instruct the perspective processing module 81 to perform an operation of performing perspective deformation processing on the lightweight three-dimensional model to be displayed.
The embodiment of the disclosure can prevent information leakage caused by cracking information in the model file by encrypting the model file.
In some embodiments of the present disclosure, the lightweight three-dimensional model anti-mapping display apparatus may be used to perform operations implementing the lightweight three-dimensional model anti-mapping display method described in any of the embodiments described above (e.g., any of fig. 1-7).
When the model is displayed, the embodiment of the disclosure can perform perspective deformation and random size deformation processing on the model, so that an observer cannot obtain accurate sizes through screen mapping under the condition of ensuring the display effect of the model.
The above embodiments of the present disclosure can create distortion effects on three-dimensional models through perspective projection techniques, preventing mapping. The embodiment of the disclosure further performs file background encryption processing on the model, combines perspective projection and random deformation, and finally achieves the effect of preventing screen mapping.
Fig. 10 is a schematic view of still another embodiment of a lightweight three-dimensional model anti-mapping display device of the present disclosure. As shown in fig. 10, the lightweight three-dimensional model mapping prevention display device of the present disclosure may further include a random deformation processing module 83, wherein:
memory 101 for storing instructions.
A processor 102 for executing the instructions to cause the lightweight three-dimensional model anti-mapping display apparatus to perform operations implementing the lightweight three-dimensional model anti-mapping display method as described in any of the embodiments above (e.g., any of fig. 1-7).
According to the embodiment of the disclosure, the three-dimensional model can be displayed through the WebGL technology, the light-weight three-dimensional model can be encrypted through the data encryption technology, slight distortion can be generated in the display process of the light-weight model through perspective deformation and random deformation, a user can be prevented from surveying and mapping the model in a front view through the view real-time management and control technology, and finally the aim of preventing the model from being surveyed is achieved.
By applying the embodiment of the disclosure, the mapping prevention problem during the display of the lightweight three-dimensional model can be well realized. The model deformation processing system of the embodiment of the disclosure can be applied to the three-dimensional release process of random technical files, and deformation mapping prevention and background file encryption during three-dimensional model display are realized.
According to another aspect of the disclosure, there is provided a computer readable storage medium storing computer instructions that when executed by a processor implement a lightweight three-dimensional model anti-mapping display method as described in any of the embodiments (e.g., any of fig. 1-7).
Based on the computer readable storage medium provided by the above embodiments of the present disclosure, the three-dimensional model may be displayed by WebGL technology, the lightweight three-dimensional model may be encrypted by data encryption technology, the lightweight model may generate slight distortion in the display process by perspective deformation and random deformation, the model may be prevented from being mapped in front view by view real-time management and control technology, and finally the object of preventing the model from being mapped is achieved. .
The lightweight three-dimensional model anti-mapping display apparatus described above may be implemented as a general purpose processor, a Programmable Logic Controller (PLC), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or any suitable combination thereof for performing the functions described herein.
Thus far, the present disclosure has been described in detail. In order to avoid obscuring the concepts of the present disclosure, some details known in the art are not described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.
Those of ordinary skill in the art will appreciate that all or a portion of the steps implementing the above embodiments may be implemented by hardware, or may be implemented by a program indicating that the relevant hardware is implemented, where the program may be stored on a computer readable storage medium, where the storage medium may be a read only memory, a magnetic disk or optical disk, etc.
The description of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the disclosure in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the disclosure and the practical application, and to enable others of ordinary skill in the art to understand the disclosure for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. A lightweight three-dimensional model mapping-prevention display method is characterized by comprising the following steps:
performing perspective deformation treatment on the light three-dimensional model to be displayed;
displaying the processed light-weight three-dimensional model, wherein the displayed light-weight model has the effect of being close to or far from the size under the condition of performing perspective deformation treatment on the light-weight three-dimensional model to be displayed;
the lightweight three-dimensional model mapping-preventing display method further comprises the following steps:
in the light three-dimensional model display process, view real-time control is carried out, so that a user is prevented from mapping the model in a front view angle;
wherein, carry out view real-time management and control, prevent that the user from including at front view visual angle mapping model:
monitoring a state adjustment command of the lightweight three-dimensional model in real time;
judging whether the view direction of the light three-dimensional model at the next moment is a front view direction or not according to the state adjustment command under the condition that the view direction of the light three-dimensional model is changed;
when the view direction at the next time is the front view direction, the current operation is not performed.
2. The lightweight three-dimensional model mapping-prevention display method of claim 1, further comprising:
and performing random deformation processing on the light-weight three-dimensional model to be displayed, and then performing the step of displaying the processed light-weight three-dimensional model.
3. The lightweight three-dimensional model mapping-prevention display method according to claim 1 or 2, further comprising:
encrypting the lightweight three-dimensional model file by a data encryption technology;
and decrypting and loading the light-weight three-dimensional model file, and then executing the step of performing perspective deformation processing on the light-weight three-dimensional model to be displayed.
4. The method for mapping-preventing display of a lightweight three-dimensional model according to claim 1 or 2, wherein the performing perspective deformation processing on the lightweight three-dimensional model to be displayed comprises:
searching a plurality of groups of mapping points related to the lightweight three-dimensional model on a screen;
determining a perspective coordinate matrix to obtain three-dimensional space coordinates of the mapping points;
converting the three-dimensional space coordinates of the mapping points;
and displaying the new coordinates on the screen.
5. The method for mapping-preventing display of a lightweight three-dimensional model according to claim 2, wherein the performing random deformation processing on the lightweight three-dimensional model to be displayed comprises:
determining key points and reading coordinates of the key points;
determining deformation parameters of the coordinates of the key points in three coordinate directions;
determining a coordinate adjustment matrix;
carrying out coordinate adjustment matrix solving on the coordinates of the key points;
and displaying the new coordinates on the screen.
6. The method for displaying the lightweight three-dimensional model in mapping prevention according to claim 5, wherein determining deformation parameters of the coordinates of the key points in three coordinate directions comprises:
and randomly determining deformation parameters of the coordinates of the key points in three coordinate directions.
7. A lightweight three-dimensional model mapping-preventing display device, comprising:
the perspective processing module is used for performing perspective deformation processing on the light three-dimensional model to be displayed;
the display module is used for displaying the processed light-weight three-dimensional model, wherein the displayed light-weight model has the effect of being close to the size and far from the size under the condition that perspective deformation processing is carried out on the light-weight three-dimensional model to be displayed;
the view management and control module is used for carrying out view real-time management and control in the light three-dimensional model display process and preventing a user from mapping the model in a front view angle;
the view management and control module is used for monitoring state adjustment commands of the lightweight three-dimensional model in real time; judging whether the view direction of the light three-dimensional model at the next moment is a front view direction or not according to the state adjustment command under the condition that the view direction of the light three-dimensional model is changed; when the view direction at the next time is the front view direction, the current operation is not performed.
8. The lightweight three-dimensional model mapping prevention display device of claim 7, wherein the lightweight three-dimensional model mapping prevention display device is configured to perform operations to implement the lightweight three-dimensional model mapping prevention display method of any of claims 2-6.
9. A lightweight three-dimensional model mapping-preventing display device, comprising:
a memory for storing instructions;
a processor configured to execute the instructions to cause the lightweight three-dimensional model anti-mapping display apparatus to perform operations implementing the lightweight three-dimensional model anti-mapping display method of any of claims 1-6.
10. A computer readable storage medium storing computer instructions which, when executed by a processor, implement the lightweight three-dimensional model anti-mapping display method of any one of claims 1-6.
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