Three-dimensional geographic information model data processing system
A technology of geographic information and model data, applied in the field of geographic information, can solve problems such as reducing storage space, reduce the use of disk space, improve efficiency, and simplify the post-processing process.
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Embodiment 1
[0039] A three-dimensional geographic information model data processing system, comprising:
[0040] Geographical information database 1, for storing three-dimensional entity object, described three-dimensional entity object comprises geographic information vector data and attribute feature;
[0041] The data classification module 2 is used to classify the three-dimensional entity objects with the same attribute characteristics, which specifically includes: presetting the various attribute characteristics of the geographic information vector data according to the requirements in the model processing, and according to different requirements. Each attribute feature is selected, and after the set attribute feature is processed by default value, the preset three-dimensional model processing parameter information is sent to the batch processing module 4;
[0042] The model processing module 3 is used to separate and simplify the texture processing of the model resources of each thr...
Embodiment 2
[0048] On the basis of the first embodiment, in the second embodiment, the step of classifying the three-dimensional entity objects with the same attribute characteristics may specifically be:
[0049] Classify the geographical information vector data according to the features of the ground and landform;
[0050] The divided geographic information vector data is divided according to different attribute characteristics.
[0051] The 3D model processing parameter information specifically includes: model resources, coordinate resources, texture resources, attribute properties, grid indexes, and 3D entity object indexes for parameter setting or setting multiple parameters according to requirements.
[0052] Therefore, the three-dimensional solid objects can be classified, so that the data can be regularized, which simplifies the later data processing process.
Embodiment 3
[0054] On the basis of Embodiments 1 and 2, in Embodiment 3, texture separation and simplification are performed on the model resources of each three-dimensional entity object, and the model resources, texture resources, and attribute data are sent to the batch processing module 4. The specific steps are:
[0055] Extract geographic information vector data and attribute features of each 3D solid object;
[0056] Converting geographic information vector data into a resource format supported by the three-dimensional data rendering module;
[0057] Separate texture resources from geographic information vector data;
[0058] Simplify the geographic information vector data and its texture resources;
[0059] Compress the original model and its texture and the simplified model and its texture;
[0060] The original model and its texture and the simplified model and its texture are stored separately, and the same model and texture are only stored once;
[0061] Stores attribute c...
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