However, the spatial data model of main GIS systems only reflect knowledge of management and manipulation objects in field of cartography, such as point, line and poly geometry objects.
当今的GIS系统的空间数据模型，主要反映地图制图领域的点、线、面对象管理与操作的几何知识。
Fractal is widely used in many fields such as the image data compression, simulation of natural scenery, the growing of fractal geometry and the research of chaos motility system.
分形几何学在图像数据压缩、模拟自然景物，艺术图案设计、分形生长及混沌动力系统的研究等方面有着广泛的应用。
Finally, using ROSE early-binding and late-binding mode, the data information such as geometry, material and grid is written into the design object to output AP209 file.
最后，利用ROSE类库早、晚两种联编方式，将几何、材料、网格等数据信息写入到设计对象中，生成ap209文件。
Finally, using ROSE early-binding and late-binding mode, the data information such as geometry, material and grid is written into the design object to output AP209 file.
最后，利用ROSE类库早、晚两种联编方式，将几何、材料、网格等数据信息写入到设计对象中，生成ap209文件。
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