CN111460542B - Building design drawing processing method and system based on BIM and VR - Google Patents
Building design drawing processing method and system based on BIM and VR Download PDFInfo
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- CN111460542B CN111460542B CN202010257942.3A CN202010257942A CN111460542B CN 111460542 B CN111460542 B CN 111460542B CN 202010257942 A CN202010257942 A CN 202010257942A CN 111460542 B CN111460542 B CN 111460542B
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- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
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Abstract
The invention discloses a building design drawing processing method and system based on BIM and VR, relating to the technical field of virtual reality, wherein the method comprises the following steps: generating a rendering picture, wherein the rendering picture is used for storing images shot by the virtual reality head-mounted display equipment; the BIM building design drawing image shot by the virtual reality head-mounted display equipment is acquired, the acquired BIM building design drawing image is projected onto a rendering picture to be automatically imaged, a three-dimensional virtual reality building model is generated, and the projected image after automatic imaging is rendered into a rendering layer of a photo frame. The building design drawing processing method and system based on BIM and VR provided by the invention have strong visibility and imaging; the interactive design and the visual impression are good; time and construction investment are saved; the construction scheme can be ensured to be optimized.
Description
Technical Field
The invention relates to the technical field of virtual reality, and particularly discloses a building design drawing processing method and system based on BIM and VR.
Background
In the traditional building industry, building design relies on drawings and experience. However, the construction effect is unknown to the existing building designer, and the complex structure construction scheme design and the construction structure design are a difficult problem for the constructor in the actual engineering construction. In addition, overall planning, resource integration, imaging and platform construction in engineering quality are also difficult to express.
The main defects of the existing building design are as follows:
1. the detail problems existing in the project drawing cannot be directly reflected.
2. And in construction, the BIM drawing is modified to increase the construction cost.
Therefore, the above defects existing in the existing building design are a technical problem to be solved urgently.
Disclosure of Invention
The invention provides a building design drawing processing method and system based on BIM and VR, aiming at solving the defects existing in the existing building design.
One aspect of the invention relates to a building design drawing processing method based on BIM and VR, comprising the following steps:
generating a rendering picture, wherein the rendering picture is used for storing images shot by the virtual reality head-mounted display equipment;
the BIM building design drawing image shot by the virtual reality head-mounted display equipment is acquired, the acquired BIM building design drawing image is projected onto a rendering picture to be automatically imaged, a three-dimensional virtual reality building model is generated, and the projected image after automatic imaging is rendered into a rendering layer of a photo frame.
Further, the steps of obtaining a BIM building design drawing image shot by the virtual reality head-mounted display device, projecting the obtained BIM building design drawing image onto a rendering picture for automatic imaging, generating a three-dimensional virtual reality building model, and rendering the projection image after automatic imaging into a rendering layer of a photo frame include:
And shooting the design problem points of the BIM building design drawing found in the preview three-dimensional virtual reality building model to generate an image, rendering the generated image into a photo frame, and storing the generated image into a set BIM folder.
Further, the step of photographing the design problem points of the BIM building design drawing found in the preview three-dimensional virtual reality building model to generate an image, and rendering the generated image into a photo frame and storing the photo frame into a set BIM folder comprises the following steps:
in a photo playing mode, displaying an animation of an image generated in the three-dimensional virtual reality building model by a user interface;
judging whether a set BIM folder stores a rendering picture or not;
if the set BIM folder stores the rendering pictures, acquiring the number of the rendering pictures stored in the BIM folder;
if the number of the rendering pictures stored in the acquired BIM folder is smaller than or equal to a set storage number limiting value, the stored rendering pictures are displayed one by one in a preview frame in the photo frame; if the number of the rendering pictures stored in the acquired BIM folder is larger than the set storage number limiting value, rendering the image generated by the virtual reality head-mounted display device onto textures, storing the textures of the frame as byte streams, converting the byte streams into the rendering pictures, and storing the rendering pictures into the set BIM folder.
Further, obtaining a BIM building design drawing image shot by the virtual reality head-mounted display device, projecting the obtained BIM building design drawing image onto a rendering picture for automatic imaging, generating a three-dimensional virtual reality building model, and rendering the automatically imaged projection image into a rendering layer of a photo frame, wherein the method further comprises the following steps:
measuring the distance between two objects to be measured in a BIM building design drawing image in a three-dimensional virtual reality building model through a VR line drawing use mode;
and comparing the measured distance between the two objects to be measured in the BIM architectural design drawing image with the actual distance between the two objects to be measured in the architectural design drawing, and obtaining the deviation between the two objects to be measured.
Further, the step of measuring the distance between two objects to be measured in the BIM architectural design drawing image in the three-dimensional virtual reality architectural model through the VR line drawing use mode includes:
in a play test mode, displaying an animation of an image generated in the three-dimensional virtual reality building model by a user interface;
a control handle trigger, which generates a mark point at the ray position and takes the mark point as a starting point;
generating a line segment from the starting point position, refreshing the vertex at one end of the line segment to the ray end point; finishing the tracking of the line segment, determining a ray end point as a line segment end point, and acquiring the length of the line segment;
And displaying the length of the acquired line segment on a user interface.
Another aspect of the invention relates to a virtual reality head mounted display device comprising:
the picture generation module is used for generating a rendering picture, and the rendering picture is used for storing images shot by the virtual reality head-mounted display equipment;
the image rendering module is used for acquiring BIM building design drawing images shot by the virtual reality head-mounted display equipment, projecting the acquired BIM building design drawing images onto a rendering picture for automatic imaging, generating a three-dimensional virtual reality building model, and rendering the automatically imaged projection images into a rendering layer of a photo frame.
Further, the virtual reality head mounted display device further includes:
the image generation and storage module is used for shooting the design problem points of the BIM building design drawing found in the preview three-dimensional virtual reality building model to generate an image, rendering the generated image into a photo frame and storing the generated image into a set BIM folder.
Further, the image generating and saving module includes:
the first display subunit is used for displaying the animation of the image generated in the three-dimensional virtual reality building model through the user interface in a photo playing mode;
The judging subunit is used for judging whether the set BIM folder stores the rendering pictures or not;
the quantity obtaining subunit is used for obtaining the quantity of the rendering pictures stored in the BIM folder if the rendering pictures are stored in the set BIM folder;
a storage subunit, configured to display the stored rendering pictures one by one in a preview frame in the photo frame if the number of the rendering pictures stored in the acquired BIM folder is less than or equal to a set storage number limit value; if the number of the rendering pictures stored in the acquired BIM folder is larger than the set storage number limiting value, rendering the image generated by the virtual reality head-mounted display device onto textures, storing the textures of the frame as byte streams, converting the byte streams into the rendering pictures, and storing the rendering pictures into the set BIM folder.
Further, the virtual reality head mounted display device further includes:
the measuring module is used for measuring the distance between two objects to be measured in the BIM building design drawing image in the three-dimensional virtual reality building model through a VR line drawing use mode;
and the comparison module is used for carrying out data comparison on the measured distance between the two objects to be tested in the BIM architectural design drawing image and the actual distance between the two objects to be tested in the architectural design drawing image, and obtaining the deviation between the two objects to be tested.
Further, the measurement module includes:
the second display subunit is used for displaying the animation of the image generated in the three-dimensional virtual reality building model through the user interface in the play test mode;
a control subunit for controlling the handle trigger to generate a mark point at the ray position, and setting the mark point as a starting point;
a length obtaining subunit, configured to generate a line segment from the starting point position, and refresh a vertex at one end of the line segment to a ray end point; finishing the tracking of the line segment, determining a ray end point as a line segment end point, and acquiring the length of the line segment;
and the third display subunit is used for displaying the length of the acquired line segment on the user interface.
The beneficial effects obtained by the invention are as follows:
according to the building design drawing processing method and system based on BIM and VR, the rendering picture is generated and used for storing the image shot by the virtual reality head-mounted display device; the method comprises the steps of obtaining BIM building design drawing images shot by virtual reality head-mounted display equipment, projecting the obtained BIM building design drawing images onto rendering pictures for automatic imaging, generating a three-dimensional virtual reality building model, and rendering the automatically imaged projection images into a rendering layer of a photo frame; providing interactive design and visual impression for the user by constructing virtual display; in the construction process, building three-dimensional models of surrounding scenes, structural members, mechanical equipment and the like in a virtual environment by using BIM+VR to form a computer-based simulation system with a certain function, so that construction processes and methods which cannot be previewed are represented, and time and construction investment are saved; meanwhile, a large number of analyses can be performed on different schemes in a short time by utilizing the virtual reality technology, so that the construction scheme is ensured to be optimized.
Drawings
FIG. 1 is a schematic flow chart of a first embodiment of a building design drawing processing method based on BIM and VR;
FIG. 2 is a schematic flow chart of a second embodiment of a building design drawing processing method based on BIM and VR provided by the invention;
FIG. 3 is a detailed flowchart of an embodiment of the steps shown in FIG. 2 of generating an image by photographing a design problem point of a BIM building design drawing found in a previewed three-dimensional virtual reality building model, and rendering the generated image into a photo frame and saving the photo frame in a set BIM folder;
FIG. 4 is a schematic flow chart of a third embodiment of a building design drawing processing method based on BIM and VR provided by the invention;
FIG. 5 is a detailed flowchart of an embodiment of the step of measuring the distance between two objects under test in the BIM architectural design drawing image in the three-dimensional virtual reality architectural model through the VR scribe line usage pattern shown in FIG. 4;
FIG. 6 is a functional block diagram of a first embodiment of a BIM and VR based architectural design drawing processing system in accordance with the present invention;
FIG. 7 is a functional block diagram of a second embodiment of a BIM and VR based architectural design drawing processing system in accordance with the present invention;
FIG. 8 is a functional block diagram of an embodiment of the image generation and saving module shown in FIG. 7;
FIG. 9 is a functional block diagram of a third embodiment of a BIM and VR based architectural design drawing processing system in accordance with the present invention;
FIG. 10 is a functional block diagram of an embodiment of the measurement module shown in FIG. 9.
Reference numerals illustrate:
10. a picture generation module; 20. an image rendering module; 30. an image generation and storage module; 31. a first display subunit; 32. judging a subunit; 33. a number acquisition subunit; 34. a storage subunit; 41. a second display subunit; 42. a control subunit; 43. a length acquisition subunit; 44. and a third display subunit.
Detailed Description
In order to better understand the above technical solutions, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, a first embodiment of the present invention provides a building design drawing processing method based on BIM and VR, which includes the following steps:
step S100, generating a rendering picture, wherein the rendering picture is used for storing images shot by the virtual reality head-mounted display device.
And creating a Render picture by the Unity engine from the attribute, wherein the Render picture is used for storing images shot by the virtual reality head-mounted display device.
Step 200, BIM building design drawing images shot by the virtual reality head-mounted display equipment are obtained, the obtained BIM building design drawing images are projected onto a rendering picture to be automatically imaged, a three-dimensional virtual reality building model is generated, and the projected images after automatic imaging are rendered into a rendering layer of a photo frame.
The PNG picture is presented in a rendering layer and is used for correcting detail errors in BIM engineering drawings. In this embodiment, the building industry drawing Revit software is mainly led out of a BIM (Building Information Modeling, building information model) model through bim+vr, and the BIM model is presented in a Unity engine through some measures such as data processing and modeling optimization, and is used for checking design problems existing in a BIM drawing through VR head display equipment.
Compared with the prior art, the building design drawing processing method based on BIM and VR provided by the embodiment has the advantages that the rendering pictures are generated and used for storing images shot by the virtual reality head-mounted display device; the BIM building design drawing image shot by the virtual reality head-mounted display equipment is acquired, the acquired BIM building design drawing image is projected onto a rendering picture to be automatically imaged, a three-dimensional virtual reality building model is generated, the projected image after automatic imaging is rendered into a rendering layer of a photo frame, and the building design drawing processing method based on BIM and VR, provided by the embodiment, is capable of showing stronger visibility and imaging through combination of BIM and VR; providing interactive design and visual impression for the user by constructing virtual display; in the construction process, building three-dimensional models of surrounding scenes, structural members, mechanical equipment and the like in a virtual environment by using BIM+VR to form a computer-based simulation system with a certain function, so that construction processes and methods which cannot be previewed are represented, and time and construction investment are saved; meanwhile, a large number of analyses can be performed on different schemes in a short time by utilizing the virtual reality technology, so that the construction scheme is ensured to be optimized.
Further, please refer to fig. 2, fig. 2 is a flow chart of a second embodiment of the building design drawing processing method based on BIM and VR according to the present invention, and based on the first embodiment, step S200 includes:
and step S300, photographing the design problem points of the BIM building design drawing found in the preview three-dimensional virtual reality building model to generate an image, rendering the generated image into a photo frame, and storing the generated image into a set BIM folder.
BIM software is imported into VR, after building model is generated, the potential safety hazard position of the building structure is photographed and stored in a local BIM folder, so that improvement is made compared with a building design drawing. In this embodiment, the handheld camera sees the problem point, photographs and generates an image, the image is rendered into the handheld photo frame, the button is saved, the default is that the Windows command is called through an internal program and is stored in the specified BIM folder, and therefore the photographing function can be completed, and the structural problem after BIM conversion is checked.
Compared with the prior art, the building design drawing processing method based on BIM and VR provided by the embodiment has the advantages that the design problem points of the BIM building design drawing found in the previewed three-dimensional virtual reality building model are photographed to generate images, and the generated images are rendered into a photo frame and stored in a set BIM folder so as to make improvement compared with the building design drawing. The building design drawing processing method based on BIM and VR, which is provided by the embodiment, reflects stronger visibility and imaging through combining BIM and VR; providing interactive design and visual impression for the user by constructing virtual display; in the construction process, building three-dimensional models of surrounding scenes, structural members, mechanical equipment and the like in a virtual environment by using BIM+VR to form a computer-based simulation system with a certain function, so that construction processes and methods which cannot be previewed are represented, and time and construction investment are saved; meanwhile, a large number of analyses can be performed on different schemes in a short time by utilizing the virtual reality technology, so that the construction scheme is ensured to be optimized.
Preferably, referring to fig. 3, fig. 3 is a schematic diagram of a refinement flow chart of an embodiment of step S300 in fig. 2, and in this embodiment, step S300 includes:
step S310, in a photo playing mode, the user interface displays animation of the image generated in the three-dimensional virtual reality building model.
Step S320, judging whether the set BIM folder stores the rendering picture.
Step S330, if the set BIM folder stores the rendering pictures, the number of the rendering pictures stored in the BIM folder is obtained.
Step S340, if the number of the rendering pictures stored in the acquired BIM folder is smaller than or equal to the set storage number limit value, the stored rendering pictures are displayed one by one in a preview frame in the photo frame; if the number of the rendering pictures stored in the acquired BIM folder is larger than the set storage number limiting value, rendering the image generated by the virtual reality head-mounted display device onto textures, storing the textures of the frame as byte streams, converting the byte streams into the rendering pictures, and storing the rendering pictures into the set BIM folder.
In this embodiment, after entering the program, it is first determined whether there is a rendering picture stored for loading into the camera preview column, and this step is used to check the structural problem location photographed after the last operation for the experimenter, and this step does not affect the main flow progress. Specifically, the number of the stored rendering pictures is i, the storage number limiting value is n, and if i is less than or equal to n, the ith rendering picture is displayed in the preview frame.
Compared with the prior art, the building design drawing processing method based on BIM and VR provided by the embodiment has the advantages that in a photo playing mode, the user interface displays the animation of the image generated in the three-dimensional virtual reality building model; judging whether a set BIM folder stores a rendering picture or not; if the set BIM folder stores the rendering pictures, acquiring the number of the rendering pictures stored in the BIM folder; if the number of the rendering pictures stored in the acquired BIM folder is smaller than or equal to a set storage number limiting value, the stored rendering pictures are displayed one by one in a preview frame in the photo frame; if the number of the rendering pictures stored in the acquired BIM folder is larger than the set storage number limiting value, rendering the image generated by the virtual reality head-mounted display device onto textures, storing the textures of the frame as byte streams, converting the byte streams into the rendering pictures, and storing the rendering pictures into the set BIM folder. The building design drawing processing method based on BIM and VR, which is provided by the embodiment, reflects stronger visibility and imaging through combining BIM and VR; providing interactive design and visual impression for the user by constructing virtual display; in the construction process, building three-dimensional models of surrounding scenes, structural members, mechanical equipment and the like in a virtual environment by using BIM+VR to form a computer-based simulation system with a certain function, so that construction processes and methods which cannot be previewed are represented, and time and construction investment are saved; meanwhile, a large number of analyses can be performed on different schemes in a short time by utilizing the virtual reality technology, so that the construction scheme is ensured to be optimized.
Further, please refer to fig. 4, fig. 4 is a flow chart of a third embodiment of the building design drawing processing method based on BIM and VR according to the present invention, and based on the first embodiment, step S200 further includes:
and step 400, measuring the distance between two objects to be measured in the BIM building design drawing image in the three-dimensional virtual reality building model through a VR line drawing use mode.
Under VR setting-out use mode, measure the distance between two objects that await measuring in the BIM architectural design drawing image through the handle trigger.
And S500, comparing the measured distance between two objects to be measured in the BIM architectural design drawing image with the actual distance between the two objects to be measured in the architectural design drawing, and obtaining the deviation between the two objects to be measured.
And (3) comparing actual interval or mutual interval data between models with a building design drawing to check errors through BIM+VR line drawing using modes, namely importing BIM software into VR.
Compared with the prior art, the building design drawing processing method based on BIM and VR provided by the embodiment measures the distance between two objects to be tested in the BIM building design drawing image in the three-dimensional virtual reality building model through the VR line drawing use mode; and comparing the measured distance between the two objects to be measured in the BIM architectural design drawing image with the actual distance between the two objects to be measured in the architectural design drawing, and obtaining the deviation between the two objects to be measured. The building design drawing processing method based on BIM and VR, which is provided by the embodiment, reflects stronger visibility and imaging through combining BIM and VR; providing interactive design and visual impression for the user by constructing virtual display; in the construction process, building three-dimensional models of surrounding scenes, structural members, mechanical equipment and the like in a virtual environment by using BIM+VR to form a computer-based simulation system with a certain function, so that construction processes and methods which cannot be previewed are represented, and time and construction investment are saved; meanwhile, a large number of analyses can be performed on different schemes in a short time by utilizing the virtual reality technology, so that the construction scheme is ensured to be optimized.
Preferably, please refer to fig. 5, fig. 5 is a detailed flow chart of an embodiment of step S400, in this embodiment, step S400 includes:
step S410, in the play test mode, the user interface displays the animation of the image generated in the three-dimensional virtual reality building model.
In the play test mode, a UI (User Interface) displays an animation of an image generated in the three-dimensional virtual reality building model.
Step S420, controlling the handle trigger to generate a mark point at the ray position, and setting the mark point as a starting point.
After the object in the ray is locked at the initial measurement position coordinate point, namely, after the measurement mode is entered, the ray is emitted from the front end of the handle, a Capsule body Capsule is generated in front of the ray through a program and used for collision detection with the object to be measured, and after an operator points on one object, the program defaults the point to be the initial position to be measured.
Step S430, generating a line segment from the starting point position, and refreshing the vertex at one end of the line segment to the ray end point; and (3) finishing tracking the line segment, determining the ray end point as the line segment end point, and obtaining the length of the line segment.
And taking the handle ray end position as an end point, generating a ray from the start point position to follow the end point in real time, namely selecting another measuring object, and after the position is fixed, transmitting a ray from the start point position to the end point position by the program, wherein the ray can connect the start point and the end point.
Step S440, the length of the acquired line segment is displayed on the user interface.
The distance measuring function of two objects can be completed by reading the linear distance between the two points and displaying the actual information data of the line on the upper panel of the handle, and whether the actual data in the BIM construction drawing is normal or not is checked.
In this embodiment, the bim+vr measurement mainly uses a ray generated by the handle in the VR mode, after the ray irradiates an object, a capsule is generated at the contact point between the ray and the object, the trigger of the handle is pressed, then the ray is automatically fixed on the surface of the object, the ray is directed in any direction, a vertex object is generated at the fixed point of the position where the operator wants to measure, and an actual value is automatically calculated and converted according to the distance between the two points, so as to correct the deviation of the height distance and the like appearing in the BIM engineering drawing.
Compared with the prior art, the building design drawing processing method based on BIM and VR provided by the embodiment has the advantages that in a playing test mode, the user interface displays the animation of the image generated in the three-dimensional virtual reality building model; a control handle trigger, which generates a mark point at the ray position and takes the mark point as a starting point; generating a line segment from the starting point position, refreshing the vertex at one end of the line segment to the ray end point; finishing the tracking of the line segment, determining a ray end point as a line segment end point, and acquiring the length of the line segment; and displaying the length of the acquired line segment on a user interface. The building design drawing processing method based on BIM and VR, which is provided by the embodiment, reflects stronger visibility and imaging through combining BIM and VR; providing interactive design and visual impression for the user by constructing virtual display; in the construction process, building three-dimensional models of surrounding scenes, structural members, mechanical equipment and the like in a virtual environment by using BIM+VR to form a computer-based simulation system with a certain function, so that construction processes and methods which cannot be previewed are represented, and time and construction investment are saved; meanwhile, a large number of analyses can be performed on different schemes in a short time by utilizing the virtual reality technology, so that the construction scheme is ensured to be optimized.
As shown in fig. 6, fig. 6 is a functional block diagram of a first embodiment of a building design drawing processing system based on BIM and VR provided by the present invention, in this embodiment, the virtual reality head mounted display device includes a picture generation module 10 and an image rendering module 20, where the picture generation module 10 is configured to generate a rendering picture, and the rendering picture is configured to store an image captured by the virtual reality head mounted display device; the image rendering module 20 is configured to obtain a BIM building design drawing image captured by the virtual reality head-mounted display device, project the obtained BIM building design drawing image onto a rendering picture, automatically image the building image, generate a three-dimensional virtual reality building model, and render the automatically imaged projected image into a rendering layer of a photo frame.
The picture generation module 10 creates a Render picture through the Unity engine self-contained attribute, and the Render picture is used for storing images shot by the virtual reality head-mounted display device.
The image rendering module 20 renders the view angle on the camera in the virtual reality head mounted display device onto the picture, generating a PNG picture that is presented in the rendering layer for correcting detail errors in the BIM engineering drawing. In this embodiment, the building industry drawing Revit software is mainly led out of a BIM (Building Information Modeling, building information model) model through bim+vr, and the BIM model is presented in a Unity engine through some measures such as data processing and modeling optimization, and is used for checking design problems existing in a BIM drawing through VR head display equipment.
Compared with the prior art, the building design drawing processing system based on BIM and VR provided by the embodiment is used for generating a rendering picture which is used for storing images shot by the virtual reality head-mounted display device; the BIM building design drawing image shot by the virtual reality head-mounted display equipment is acquired, the acquired BIM building design drawing image is projected onto a rendering picture to be automatically imaged, a three-dimensional virtual reality building model is generated, the projected image after automatic imaging is rendered into a rendering layer of a photo frame, and the building design drawing processing system based on BIM and VR, provided by the embodiment, is combined with BIM and VR to embody stronger visibility and imaging; providing interactive design and visual impression for the user by constructing virtual display; in the construction process, building three-dimensional models of surrounding scenes, structural members, mechanical equipment and the like in a virtual environment by using BIM+VR to form a computer-based simulation system with a certain function, so that construction processes and methods which cannot be previewed are represented, and time and construction investment are saved; meanwhile, a large number of analyses can be performed on different schemes in a short time by utilizing the virtual reality technology, so that the construction scheme is ensured to be optimized.
Further, please refer to fig. 7, fig. 7 is a functional block diagram of a second embodiment of the building design drawing processing system based on BIM and VR provided by the present invention, and on the basis of the first embodiment, the virtual reality head-mounted display device further includes an image generating and saving module 30, wherein the image generating and saving module 30 is configured to photograph design problem points of the building design drawing found in the preview three-dimensional virtual reality building model to generate an image, and render the generated image into a photo frame and save the generated image into a set BIM folder.
The image generation and storage module 30 imports the BIM software into VR, generates a building model, and then photographs and stores the position of the potential safety hazard of the building structure in a local BIM folder to make improvements compared with the building design drawing. In this embodiment, the handheld camera sees the problem point, photographs and generates an image, the image is rendered into the handheld photo frame, the button is saved, the default is that the Windows command is called through an internal program and is stored in the specified BIM folder, and therefore the photographing function can be completed, and the structural problem after BIM conversion is checked.
Compared with the prior art, the building design drawing processing system based on BIM and VR provided by the embodiment has the advantages that the design problem points of the BIM building design drawing found in the previewed three-dimensional virtual reality building model are photographed to generate images, and the generated images are rendered into a photo frame and stored in a set BIM folder so as to make improvement in comparison with the building design drawing. The building design drawing processing system based on BIM and VR provided by the embodiment reflects stronger visibility and imaging through combining BIM and VR; providing interactive design and visual impression for the user by constructing virtual display; in the construction process, building three-dimensional models of surrounding scenes, structural members, mechanical equipment and the like in a virtual environment by using BIM+VR to form a computer-based simulation system with a certain function, so that construction processes and methods which cannot be previewed are represented, and time and construction investment are saved; meanwhile, a large number of analyses can be performed on different schemes in a short time by utilizing the virtual reality technology, so that the construction scheme is ensured to be optimized.
Preferably, referring to fig. 8, fig. 8 is a functional block diagram of an embodiment of the image generating and saving module shown in fig. 7, in which the image generating and saving module 30 includes a first display subunit 31, a judging subunit 32, a quantity obtaining subunit 33, and a saving subunit 34, where the first display subunit 31 is configured to display an animation of an image generated in the three-dimensional virtual reality building model through a user interface in a photo playing mode; a judging subunit 32, configured to judge whether the set BIM folder stores a rendering picture; a quantity obtaining subunit 33, configured to obtain, if the set BIM folder stores the rendering pictures, the quantity of the rendering pictures stored in the BIM folder; a storage subunit 34, configured to display the stored rendering pictures one by one in a preview frame in the photo frame if the number of rendering pictures stored in the acquired BIM folder is less than or equal to the set storage number limit value; if the number of the rendering pictures stored in the acquired BIM folder is larger than the set storage number limiting value, rendering the image generated by the virtual reality head-mounted display device onto textures, storing the textures of the frame as byte streams, converting the byte streams into the rendering pictures, and storing the rendering pictures into the set BIM folder.
In this embodiment, the judging subunit 32 first judges whether there is a rendering picture stored for loading into the camera preview column, which is used to view the structure problem location photographed after the last operation for the experimenter, without affecting the main flow progress. Specifically, the number of the stored rendering pictures is i, the storage number limiting value is n, and if i is less than or equal to n, the ith rendering picture is displayed in the preview frame.
Compared with the prior art, the building design drawing processing system based on BIM and VR provided by the embodiment has the advantages that in a photo playing mode, a user interface displays animation of images generated in a three-dimensional virtual reality building model; judging whether a set BIM folder stores a rendering picture or not; if the set BIM folder stores the rendering pictures, acquiring the number of the rendering pictures stored in the BIM folder; if the number of the rendering pictures stored in the acquired BIM folder is smaller than or equal to a set storage number limiting value, the stored rendering pictures are displayed one by one in a preview frame in the photo frame; if the number of the rendering pictures stored in the acquired BIM folder is larger than the set storage number limiting value, rendering the image generated by the virtual reality head-mounted display device onto textures, storing the textures of the frame as byte streams, converting the byte streams into the rendering pictures, and storing the rendering pictures into the set BIM folder. The building design drawing processing system based on BIM and VR provided by the embodiment reflects stronger visibility and imaging through combining BIM and VR; providing interactive design and visual impression for the user by constructing virtual display; in the construction process, building three-dimensional models of surrounding scenes, structural members, mechanical equipment and the like in a virtual environment by using BIM+VR to form a computer-based simulation system with a certain function, so that construction processes and methods which cannot be previewed are represented, and time and construction investment are saved; meanwhile, a large number of analyses can be performed on different schemes in a short time by utilizing the virtual reality technology, so that the construction scheme is ensured to be optimized.
Further, please refer to fig. 9, fig. 9 is a functional block diagram of a third embodiment of the building design drawing processing system based on BIM and VR provided by the present invention, and on the basis of the first embodiment, the virtual reality head-mounted display device further includes a measurement module 40 and a comparison module 50, wherein the measurement module 40 is configured to measure a distance between two objects to be measured in a BIM building design drawing image in a three-dimensional virtual reality building model through a VR drawing line usage mode. The comparison module 50 is configured to compare the measured distance between the two objects to be measured in the BIM architectural design drawing image with the actual distance between the two objects to be measured in the architectural design drawing image, and obtain the deviation between the two objects to be measured.
The measuring module 40 measures the distance between two objects to be measured in the BIM architectural design drawing image by the handle trigger in the VR line drawing usage mode.
The comparison module 50 compares the architectural design drawing viewing errors to actual spacing or mutual spacing data between models by BIM+VR scribe line usage patterns, i.e., BIM software imported into the VR.
Compared with the prior art, the BIM and VR-based building design drawing processing system provided by the embodiment measures the distance between two objects to be tested in a BIM building design drawing image in a three-dimensional virtual reality building model through a VR line drawing use mode; and comparing the measured distance between the two objects to be measured in the BIM architectural design drawing image with the actual distance between the two objects to be measured in the architectural design drawing, and obtaining the deviation between the two objects to be measured. The building design drawing processing system based on BIM and VR provided by the embodiment reflects stronger visibility and imaging through combining BIM and VR; providing interactive design and visual impression for the user by constructing virtual display; in the construction process, building three-dimensional models of surrounding scenes, structural members, mechanical equipment and the like in a virtual environment by using BIM+VR to form a computer-based simulation system with a certain function, so that construction processes and methods which cannot be previewed are represented, and time and construction investment are saved; meanwhile, a large number of analyses can be performed on different schemes in a short time by utilizing the virtual reality technology, so that the construction scheme is ensured to be optimized.
As shown in fig. 10, fig. 10 is a functional block diagram of an embodiment of the measurement module shown in fig. 9, in this embodiment, the measurement module 40 includes a second display subunit 41, a control subunit 42, and a length acquisition subunit 43, where the second display subunit 41, in a play test mode, the user interface displays an animation of an image generated in the three-dimensional virtual reality building model; a control subunit 42 for controlling the handle trigger to generate a mark point at the ray position, and setting the mark point as a starting point; a length obtaining subunit 43, configured to generate a line segment from the starting point position, and refresh a vertex at one end of the line segment to the end point of the ray; finishing the tracking of the line segment, determining a ray end point as a line segment end point, and acquiring the length of the line segment; a third display subunit 44, configured to display the length of the acquired line segment on the user interface.
The second display subunit 41 displays, in the play test mode, an animation of an image generated in the three-dimensional virtual reality building model in a UI (User Interface).
The control subunit 42 locks the coordinate point of the initial measurement position by using the object in the radiation, that is, after entering the measurement mode, the radiation is sent out from the front end of the handle, a Capsule body is generated in front of the radiation by the program for collision detection with the object to be measured, and after the operator points on an object, the program defaults to the initial point to be the initial point position to be measured.
The length acquisition subunit 43 takes the handle ray end position as the end point, generates a ray from the start point position to follow the end point in real time, i.e. selects another measurement object, after the position is fixed, the program will emit a ray from the start point position to the end point position, and the ray will connect the start point and the end point.
The third display subunit 44 can complete the ranging function of two objects by reading the linear distance between two points and displaying the actual information data of the line on the upper panel of the handle, and check whether the actual data in the BIM construction drawing is normal.
In this embodiment, the bim+vr measurement mainly uses a ray generated by the handle in the VR mode, after the ray irradiates an object, a capsule is generated at the contact point between the ray and the object, the trigger of the handle is pressed, then the ray is automatically fixed on the surface of the object, the ray is directed in any direction, a vertex object is generated at the fixed point of the position where the operator wants to measure, and an actual value is automatically calculated and converted according to the distance between the two points, so as to correct the deviation of the height distance and the like appearing in the BIM engineering drawing.
Compared with the prior art, the building design drawing processing system based on BIM and VR provided by the embodiment has the advantages that in a playing test mode, a user interface displays animation of images generated in a three-dimensional virtual reality building model; a control handle trigger, which generates a mark point at the ray position and takes the mark point as a starting point; generating a line segment from the starting point position, refreshing the vertex at one end of the line segment to the ray end point; finishing the tracking of the line segment, determining a ray end point as a line segment end point, and acquiring the length of the line segment; and displaying the length of the acquired line segment on a user interface. The building design drawing processing system based on BIM and VR provided by the embodiment reflects stronger visibility and imaging through combining BIM and VR; providing interactive design and visual impression for the user by constructing virtual display; in the construction process, building three-dimensional models of surrounding scenes, structural members, mechanical equipment and the like in a virtual environment by using BIM+VR to form a computer-based simulation system with a certain function, so that construction processes and methods which cannot be previewed are represented, and time and construction investment are saved; meanwhile, a large number of analyses can be performed on different schemes in a short time by utilizing the virtual reality technology, so that the construction scheme is ensured to be optimized.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (6)
1. The building design drawing processing method based on BIM and VR is characterized by comprising the following steps:
generating a rendering picture, wherein the rendering picture is used for storing images shot by the virtual reality head-mounted display equipment;
acquiring BIM building design drawing images shot by the virtual reality head-mounted display equipment, projecting the acquired BIM building design drawing images onto the rendering pictures for automatic imaging, generating a three-dimensional virtual reality building model, and rendering the automatically imaged projection images into a rendering layer of a photo frame;
The steps of obtaining the BIM building design drawing image shot by the virtual reality head-mounted display device, projecting the obtained BIM building design drawing image onto the rendering picture for automatic imaging, generating a three-dimensional virtual reality building model, and rendering the projection image after automatic imaging into a rendering layer of a photo frame comprise the following steps:
photographing the design problem points of the BIM building design drawing found in the preview three-dimensional virtual reality building model to generate an image, rendering the generated image into the photo frame and storing the generated image into a set BIM folder;
the step of photographing the design problem points of the BIM building design drawing found in the preview three-dimensional virtual reality building model to generate an image, rendering the generated image into the photo frame and storing the generated image into a set BIM folder comprises the following steps of:
in a photo playing mode, displaying an animation of the image generated in the three-dimensional virtual reality building model by a user interface;
judging whether a set BIM folder stores a rendering picture or not;
if the set BIM folder stores the rendering pictures, acquiring the number of the rendering pictures stored in the BIM folder;
If the number of the rendering pictures stored in the acquired BIM folder is smaller than or equal to a set storage number limiting value, the stored rendering pictures are displayed one by one in a preview frame in the photo frame; and if the number of the rendering pictures stored in the acquired BIM folder is larger than a set storage number limiting value, rendering the image generated by the virtual reality head-mounted display device onto textures, storing the textures of the frame as byte streams, converting the byte streams into the rendering pictures, and storing the rendering pictures into the set BIM folder.
2. The method for processing a BIM and VR based architectural design drawing according to claim 1,
the steps of obtaining the BIM building design drawing image shot by the virtual reality head-mounted display device, projecting the obtained BIM building design drawing image onto the rendering picture for automatic imaging, generating a three-dimensional virtual reality building model, and rendering the projection image after automatic imaging into a rendering layer of a photo frame further comprise:
measuring the distance between two objects to be measured in the BIM building design drawing image in the three-dimensional virtual reality building model through a VR line drawing use mode;
And comparing the measured distance between the two objects to be measured in the BIM architectural design drawing image with the actual distance between the two objects to be measured in the architectural design drawing, and obtaining the deviation between the two objects to be measured.
3. The method for processing a BIM and VR based architectural design drawing according to claim 2,
the step of measuring the distance between two objects to be measured in the BIM architectural design drawing image in the three-dimensional virtual reality architectural model through the VR setting-out use mode comprises the following steps:
in a play test mode, displaying an animation of the image generated in the three-dimensional virtual reality building model by a user interface;
a control handle trigger, which generates a mark point at the ray position and takes the mark point as a starting point;
generating a line segment from a starting point position, and refreshing the vertex at one end of the line segment to the end point of the ray; ending the tracking of the line segment, and determining a ray end point as a line segment end point to acquire the length of the line segment;
and displaying the acquired length of the line segment on a user interface.
4. BIM and VR-based building design drawing processing system is applied to virtual reality head-mounted display equipment, and is characterized in that the BIM and VR-based building design drawing processing system comprises:
The picture generation module (10) is used for generating a rendering picture, and the rendering picture is used for storing images shot by the virtual reality head-mounted display device;
the image rendering module (20) is used for acquiring BIM building design drawing images shot by the virtual reality head-mounted display equipment, projecting the acquired BIM building design drawing images onto the rendering pictures for automatic imaging, generating a three-dimensional virtual reality building model, and rendering the automatically imaged projection images into a rendering layer of a photo frame;
the image generation and storage module (30) is used for shooting the design problem points of the BIM building design drawing found in the preview three-dimensional virtual reality building model to generate an image, rendering the generated image into the photo frame and storing the generated image into a set BIM folder;
the image generation and storage module (30) includes:
a first display subunit (31) for displaying, in a photo-playing mode, an animation of the image generated in the three-dimensional virtual reality building model on a user interface;
a judging subunit (32) configured to judge whether a rendering picture is stored in the set BIM folder;
a quantity obtaining subunit (33) configured to obtain, if a set BIM folder stores a rendering picture, the quantity of the rendering picture stored in the BIM folder;
A storage subunit (34) configured to display the stored rendering pictures one by one in a preview frame in the photo frame if the number of the rendering pictures stored in the acquired BIM folder is less than or equal to a set storage number limit value; and if the number of the rendering pictures stored in the acquired BIM folder is larger than a set storage number limiting value, rendering the image generated by the virtual reality head-mounted display device onto textures, storing the textures of the frame as byte streams, converting the byte streams into the rendering pictures, and storing the rendering pictures into the set BIM folder.
5. The method for processing a BIM and VR based architectural design drawing according to claim 4,
the building design drawing processing system based on BIM and VR still includes:
the measuring module (40) is used for measuring the distance between two objects to be measured in the BIM building design drawing image in the three-dimensional virtual reality building model through a VR line drawing use mode;
and the comparison module (50) is used for carrying out data comparison on the measured distance between two objects to be detected in the BIM building design drawing image and the actual distance between the two objects to be detected in the building design drawing image, and obtaining the deviation between the two objects to be detected.
6. The BIM and VR based architectural design drawing processing system as in claim 5,
the measurement module (40) comprises:
a second display subunit (41) for displaying, in a play test mode, an animation of the image generated in the three-dimensional virtual reality building model on a user interface;
a control subunit (42) for controlling the handle trigger to generate a mark point at the ray position, the mark point being set as a starting point;
a length acquisition subunit (43) for generating a line segment from a start point position and refreshing a vertex at one end of the line segment to a ray end point; ending the tracking of the line segment, and determining a ray end point as a line segment end point to acquire the length of the line segment;
and a third display subunit (44) configured to display the acquired length of the line segment on a user interface.
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