/**
* 绘制弧线
*
* @return 折线对象
*/
public Graphic DrawArc()
{
double mLat = 39.97923;
double mLon = 116.357428;
int lat = (int)(mLat * 1E6);
int lon = (int)(mLon * 1E6);
GeoPoint pt1 = new GeoPoint(lat, lon);
mLat = 39.94923;
mLon = 116.397428;
lat = (int)(mLat * 1E6);
lon = (int)(mLon * 1E6);
GeoPoint pt2 = new GeoPoint(lat, lon);
mLat = 39.97923;
mLon = 116.437428;
lat = (int)(mLat * 1E6);
lon = (int)(mLon * 1E6);
GeoPoint pt3 = new GeoPoint(lat, lon);
Geometry arcGeometry = new Geometry();
arcGeometry.SetArc(pt1, pt3, pt2);
// 设定样式
Symbol arcSymbol = new Symbol();
Symbol.Color arcColor = new Com.Baidu.Mapapi.Map.Symbol.Color(arcSymbol);
arcColor.Red = 255;
arcColor.Green = 0;
arcColor.Blue = 225;
arcColor.Alpha = 255;
arcSymbol.SetLineSymbol(arcColor, 4);
// 生成Graphic对象
Graphic arcGraphic = new Graphic(arcGeometry, arcSymbol);
return arcGraphic;
}
/**
* 绘制折线，该折线状态随地图状态变化
* @return 折线对象
*/
public Graphic DrawLine()
{
double mLat = 39.97923;
double mLon = 116.357428;
int lat = (int)(mLat * 1E6);
int lon = (int)(mLon * 1E6);
GeoPoint pt1 = new GeoPoint(lat, lon);
mLat = 39.94923;
mLon = 116.397428;
lat = (int)(mLat * 1E6);
lon = (int)(mLon * 1E6);
GeoPoint pt2 = new GeoPoint(lat, lon);
mLat = 39.97923;
mLon = 116.437428;
lat = (int)(mLat * 1E6);
lon = (int)(mLon * 1E6);
GeoPoint pt3 = new GeoPoint(lat, lon);
//构建线
Geometry lineGeometry = new Geometry();
//设定折线点坐标
GeoPoint[] linePoints = new GeoPoint[3];
linePoints[0] = pt1;
linePoints[1] = pt2;
linePoints[2] = pt3;
lineGeometry.SetPolyLine(linePoints);
//设定样式
Symbol lineSymbol = new Symbol();
Symbol.Color lineColor = new Com.Baidu.Mapapi.Map.Symbol.Color(lineSymbol);
lineColor.Red = 255;
lineColor.Green = 0;
lineColor.Blue = 0;
lineColor.Alpha = 255;
lineSymbol.SetLineSymbol(lineColor, 10);
//生成Graphic对象
Graphic lineGraphic = new Graphic(lineGeometry, lineSymbol);
return lineGraphic;
}