//投影转换
public void ProjConvert(string srcProjParam, string desProjParam, int pointCount, double[] X, double[] Y, double[] Z)
{
////投影参数初始化
IntPtr pjSrc = ProjWrapper.pj_init_plus(srcProjParam);
IntPtr pjDes = ProjWrapper.pj_init_plus(desProjParam);
ProjWrapper.pj_transform(pjSrc, pjDes, pointCount, 0, X, Y, Z);
// X = null;
// Y = null;
Z = null;
}
//单点-正投影
public PointF GetXYFromLatLon(PointF pointOrg, MapHandle.config.ProjPara proj)
{
pointOrg.X = (float)(pointOrg.X * DEG2RAD);
pointOrg.Y = (float)(pointOrg.Y * DEG2RAD);
//投影参数初始化
IntPtr pj = ProjWrapper.pj_init_plus(getSrcProj(proj));
projUV temp = new projUV(pointOrg.X, pointOrg.Y);
projUV coord = ProjWrapper.pj_fwd(temp, pj);
PointF pointPrj = new PointF();
pointPrj.X = (float)(coord.U);
pointPrj.Y = (float)(coord.V);
return(pointPrj);
}
//单点-反投影
public PointF GetLatLonFromXY(PointF pointXY, MapHandle.config.ProjPara proj)
{
//投影参数初始化
PointF result = new PointF();
IntPtr pj = ProjWrapper.pj_init_plus(getSrcProj(proj));
projUV temp = new projUV(pointXY.X, pointXY.Y);
projUV coord = ProjWrapper.pj_inv(temp, pj);
result.X = (float)(coord.U);
result.Y = (float)(coord.V);
result.X = (float)(result.X * RAD2DEG);
result.Y = (float)(result.Y * RAD2DEG);
return(result);
}
