LWUIT引路蜂地图开发示例：地图平移
RasterMap 有两个方法可以用于平移地图，panTo 将地图移动到指定经纬度坐标，panDirection(dx,dy) 将地图从当前位置平移dx,dy 个象素。
下列示例可以上，下，左，右平移地图。
package com.pstreets.gisengine.demo.lwuit; //--------------------------------- IMPORTS ------------------------------------import com.mapdigit.gis.geometry.GeoLatLng;import com.mapdigit.gis.raster.MapType; import com.pstreets.gisengine.demo.MapDemoLWUIT;import com.sun.lwuit.Command;import com.sun.lwuit.events.ActionEvent;public class MapPanLWUIT extends MapDemoLWUIT{ private Command mapUpCommand; private Command mapDownCommand; private Command mapLeftCommand; private Command mapRightCommand; public void startApp() { init(); mapUpCommand=new Command("Up"){ public void actionPerformed(ActionEvent evt) { map.panDirection(0, -32); } }; mapDownCommand=new Command("Down"){ public void actionPerformed(ActionEvent evt) { map.panDirection(0, 32); } }; mapLeftCommand=new Command("Left"){ public void actionPerformed(ActionEvent evt) { map.panDirection(-32, 0); } }; mapRightCommand=new Command("Right"){ public void actionPerformed(ActionEvent evt) { map.panDirection(32, 0); } }; canvas.addCommand(mapUpCommand); canvas.addCommand(mapDownCommand); canvas.addCommand(mapLeftCommand); canvas.addCommand(mapRightCommand); GeoLatLng center = new GeoLatLng(32.0616667, 118.7777778); map.setCenter(center, 13, MapType.MICROSOFTCHINA); canvas.show(); } }
LWUIT 引路蜂地图开发包Ver2.1下载