ucgui下的GIS引擎简陋版，采用ucgui为绘图GUI,演示GPS坐标与屏幕坐标变换，实现轨迹回放功能，放大缩小功能，不能演示，但也具有，没完善-GIS engine under ucgui simple version, using ucgui for mapping GUI, presentation screen GPS coordinates and coordinate transformation, achieve trajectory playback, zoom functi