GDAL 还可让编程人员在世界地理坐标（即地理参考坐标）上设计栅格数据。
GDAL also enables programmers to project raster data onto worldwide geographical coordinates, known as georeferenced coordinates.
基于基态修正思想，设计栅格时态层由四张关系表组成，并设计其表结构。
Based on the ideas of base state with amendments, the temporal layer of raster is designs by four relational tables, and the structure of tables is also given.
结论就是，当我们在设计栅格时，子划分和整个栅格会具有一种细微的联系 例如， 1/3 3/4 2/3 等，不过最为重要的是保持了一致性。
A conclusion to this is when designing a grid, subdivide so there is a fractional relationship to the whole grid area, eg, 1/3 3/4 2/3 etc. but more importantly be consistent.
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