一个多功能的微型GIS程序，足以应付图形图象或GIS方面课程设计等。具体实现放大缩小，移动查看局部，放大局部，查看全部，画线画弧线画连续线画图形多边形等等功能。-a multi-purpose micro-GIS procedures to deal with graphic images or GIS, and other aspects of curriculum design. Large concrete realization of narrow, mobile check local