Large-volume BIM model data processing and loading method and device

A model data, large-scale technology, applied in image data processing, data processing applications, 3D modeling, etc., can solve the problem of position deviation, browsing stuck, inaccurate positioning and so on when the model is loaded into the 3D scene

Active Publication Date: 2020-06-09
陕西心像信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Small-scale large-volume model loading: If a single model is loaded one by one, due to the large number and low reusability of model materials, the system memory will increase and the browsing will freeze
If the overall load is loaded, the waiting time for the model display is too long, which affects the user experience, and it is impossible to unload the partial model, making it difficult to manage the scene memory
[0006] The production and processing of BIM model data is complicated. When a single model is exported and loaded onto a 3D platform, problems related to coordinate transformation and projection transformation will occur, resulting in errors of varying degrees, resulting in deviations in the position of the model loaded into the 3D scene and inaccurate positioning, etc. question

Method used

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  • Large-volume BIM model data processing and loading method and device
  • Large-volume BIM model data processing and loading method and device
  • Large-volume BIM model data processing and loading method and device

Examples

Experimental program
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Effect test

Embodiment 1

[0049] see figure 1 The method for processing and loading large volume BIM model data in this embodiment can be realized by the following steps:

[0050] (1) Import the BIM model into 3DMax, export the position information of the single model in the BIM model, and export the format as a json file; specifically:

[0051] (1.1) Use Revit software to make BIM models, see figure 1 ,figure 1 For BIM data export, export project as FBX;

[0052] (1.2) Use 3DMax to import FBX project files;

[0053] (1.3) Create tool 1: use the New Script function in the MaxScript menu in 3DMax to create a new script, use the Max script language to create a new button 1 (button btnExportCoord "export model coordinates"), click on the event of button 1 (on btnExportCoord pressed do ) uses the Max script interface geometry as array to obtain all models, traverse the model collection, obtain the name (name) and position information (pos) of a single model, select the save path and write it into the js...

Embodiment 2

[0079] The large volume BIM model data processing and loading method of this embodiment can be realized by the following steps:

[0080] (1) Import the BIM model into 3DMax, export the position information of the single model in the BIM model, and export the format as a json file; specifically:

[0081] (1.1) Use Revit software to make BIM models,

[0082] (1.2) Use 3DMax to import FBX project files;

[0083] (1.3) Create tool 1: use the New Script function in the MaxScript menu in 3DMax to create a new script, use the Max script language to create a new button 1 (button btnExportCoord "export model coordinates"), click on the button 1 (on btnExportCoord pressed do ) uses the Max script interface geometry as array to obtain all models, traverse the model collection, obtain the name (name) and position information (pos) of a single model, select the save path and write it into the json file;

[0084] (1.4) Use tool 1 to read the position information of the monomer model in 3D...

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Abstract

The invention provides a large-volume BIM model data processing and loading method and device, and belongs to the technical field of BIM data processing. The device comprises a data export module; a model data grouping module; a model data export module; a model data lightweight module; model layer manufacturing module. The BIM loading adopts the principle of nearby loading, the scene model closest to the current visual angle can be quickly displayed, and when the number of the models reaches a certain online state, unloading can be automatically performed according to the loading condition.

Description

technical field [0001] The invention belongs to the technical field of BIM data processing, and in particular relates to a BIM data processing method, equipment and system. Background technique [0002] With the advancement of human science and technology, the GIS platform has become a direction of development from two-dimensional to three-dimensional. The three-dimensional GIS platform can load multi-source heterogeneous data, including massive data such as elevation, image, precise model, and BIM model. The large volume and complex structure of BIM model data, and the large volume of model data in a small area, etc., cause the GIS platform to load BIM model data slowly and the view freezes, making it possible for 3D GIS scenes to provide efficient data loading. inevitable. [0003] In order to improve the loading and rendering performance of 3D scenes, the data is processed in a fragmented manner in the BIM data production process, which can effectively relieve the memory...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/13G06T17/20G06Q50/08
CPCG06Q50/08G06T17/20
Inventor 麻卓任健强肖彦科杨森常鹏李攀马伟超
Owner 陕西心像信息科技有限公司
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