Tagged image file format (.tiff) is another commonly used raster-based image format, which GIS specialists adapted to geographers' needs and renamed GeoTIFF.
带标记的图像文件格式 (.tiff) 是另一种常用的基于栅格的图像格式，GIS 专家为适应地理学者的需要将其重命名为 GeoTIFF。
It is essential to the spatial raster data structure of GIS; in fact, all spatial analysis about raster data is based on the digital topology.
数字拓扑主要研究栅格空间中离散几何对象的拓扑性质，这些性质在GIS空间分析和栅格数据处理中非常重要。
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