A visual LISP program for voxelizing AutoCAD solid models

作者：Marschallinger Robert^*; Jandrisevits Carmen; Zobl Fritz

来源：Computers & Geosciences, 2015, 74: 110-120.

DOI：10.1016/j.cageo.2014.09.011

• Voxelization
• Solid model
• Region-of-interest
• Geostatistics
• AutoCAD
• SGEMS

AutoCAD solid models are increasingly recognized in geological and geotechnical 3D modeling. In order to bridge the currently existing gap between AutoCAD solid models and the grid modeling realm, a Visual LISP program is presented that converts AutoCAD solid models into voxel arrays. Acad2Vox voxelizer works on a 3o-model that is made up of arbitrary non-overlapping 3D-solids. After definition of the target voxel array geometry, 3D-solids are scanned at grid positions and properties are streamed to an ASCII output file. Acad2Vox has a novel voxelization strategy that combines a hierarchical reduction of sampling dimensionality with an innovative use of AutoCAD-specific methods for a fast and memory-saving operation. Acad2Vox provides georeferenced, voxelized analogs of 3D design data that can act as regions-of-interest in later geostatistical modeling and simulation. The Supplement includes sample geological solid models with instructions for practical work with Acad2Vox.

• 出版日期2015-1