private Envelope GetMaskEnvelope(ShapePolygon shapePolygon)
{
if (shapePolygon == null)
{
return(null);
}
Envelope envelope = shapePolygon.Envelope;
if (_activeCoordType == enumCoordType.GeoCoord)
{
return(envelope);
}
else if (_activeCoordType == enumCoordType.PrjCoord)
{
GeoDo.Project.ISpatialReference srcProj = GeoDo.Project.SpatialReference.GetDefault();
GeoDo.Project.ISpatialReference dstProj = _activeSpatialRef;
GeoDo.Project.IProjectionTransform prj = GeoDo.Project.ProjectionTransformFactory.GetProjectionTransform(srcProj, dstProj);
double[] xs = new double[] { shapePolygon.Rings[0].Points[0].X };
double[] ys = new double[] { shapePolygon.Rings[0].Points[0].Y };
prj.Transform(xs, ys);
double minx = xs[0];
double maxx = xs[0];
double miny = ys[0];
double maxy = ys[0];
ShapePoint pt;
foreach (ShapeRing ring in shapePolygon.Rings)
{
for (int pti = 0; pti < ring.Points.Length; pti++)
{
pt = ring.Points[pti];
xs = new double[] { pt.X };
ys = new double[] { pt.Y };
prj.Transform(xs, ys);
minx = Math.Min(xs[0], minx);
maxx = Math.Max(xs[0], maxx);
miny = Math.Min(ys[0], miny);
maxy = Math.Max(ys[0], maxy);
}
}
Envelope corEnvelope = new Envelope(minx, miny, maxx, maxy);
return(corEnvelope);
}
else
{
return(null);
}
}
private void WriteWorldFile(IRasterDataProvider prd, string bmpFilename)
{
try
{
double minx = prd.CoordEnvelope.MinX;
double maxy = prd.CoordEnvelope.MaxY;
double resolutionX = prd.ResolutionX;
double resolutionY = prd.ResolutionY;
GeoDo.Project.ISpatialReference spatial = prd.SpatialRef;
WorldFile worldFile = new WorldFile();
worldFile.CreatWorldFile(resolutionX, -resolutionY, minx, maxy, bmpFilename);
worldFile.CreatXmlFile(spatial == null ? GeoDo.Project.SpatialReference.GetDefault() : spatial, bmpFilename);
}
catch
{
}
}
public static bool SetAOIArugment(string[] fnames, IMonitoringSubProduct msp, bool multiSelect, out CoordEnvelope selectedEnvelope)
{
float maxResultion = 0f;
IRasterDataProvider prd = null;
CoordEnvelope envelope = new CoordEnvelope(double.MaxValue, double.MinValue, double.MaxValue, double.MinValue);
GeoDo.Project.ISpatialReference prdSpatialRef = null;
foreach (string item in fnames)
{
try
{
prd = GeoDataDriver.Open(item) as IRasterDataProvider;
maxResultion = Math.Max(maxResultion, prd.ResolutionX);
envelope = envelope.Union(new CoordEnvelope(prd.CoordEnvelope.MinX, prd.CoordEnvelope.MinX + prd.ResolutionX * prd.Width,
prd.CoordEnvelope.MinY, prd.CoordEnvelope.MinY + prd.ResolutionY * prd.Height));
prdSpatialRef = prd.SpatialRef;
}
catch
{
throw new ArgumentException("选择的文件：“" + Path.GetFileName(item) + "”无法进行面积统计。");
}
finally
{
if (prd != null)
{
prd.Dispose();
prd = null;
}
}
}
Size size = new Size((int)(envelope.Width / maxResultion), (int)(envelope.Height / maxResultion));
using (frmStatSubRegionTemplates frm = new frmStatSubRegionTemplates(size, envelope, maxResultion))
{
frm.listView1.MultiSelect = multiSelect;
if (prdSpatialRef != null)
{
frm.SpatialRef = prdSpatialRef;
}
if (frm.ShowDialog() == DialogResult.OK)
{
//Feature[] features = frm.GetSelectedFeatures();
//AOIProvider aoiProvider = new AOIProvider(null);
//aoiProvider.GetBitmapIndexes
msp.ArgumentProvider.SetArg("AOI", frm.GetFeatureAOIIndex());
msp.ArgumentProvider.SetArg("AOIFeatures", frm.GetSelectedFeatures());
CodeCell.AgileMap.Core.Envelope env = frm.GetSelectedEnvelope();
if (env != null)
{
selectedEnvelope = new CoordEnvelope(env.MinX, env.MaxX, env.MinY, env.MaxY);
}
else
{
selectedEnvelope = null;
}
return(true);
}
else
{
selectedEnvelope = null;
return(false);
}
}
}
