public GeomPolygon(IEnvelope envelope)
{
Polygon polygon = new Polygon();
Ring ring = new Ring();
ring.AddPoint(new gView.Framework.Geometry.Point(envelope.minx, envelope.miny));
ring.AddPoint(new gView.Framework.Geometry.Point(envelope.minx, envelope.maxy));
ring.AddPoint(new gView.Framework.Geometry.Point(envelope.maxx, envelope.maxy));
ring.AddPoint(new gView.Framework.Geometry.Point(envelope.maxx, envelope.miny));
ring.AddPoint(new gView.Framework.Geometry.Point(envelope.minx, envelope.miny));
polygon.AddRing(ring);
NofContours = polygon.RingCount;
ContourIsHole = new bool[NofContours];
Contour = new GeomVertexList[NofContours];
for (int i = 0; i < NofContours; i++)
{
ContourIsHole[i] = (i != 0);
}
for (int i = 0; i < polygon.RingCount; i++)
{
Contour[i] = new GeomVertexList(polygon[i]);
}
}
// path should contain only polylines ( use Flatten )
// furthermore the constructor assumes that all Subpathes of path except the first one are holes
public GeomPolygon(GraphicsPath path)
{
NofContours = 0;
foreach (byte b in path.PathTypes)
{
if ((b & ((byte)PathPointType.CloseSubpath)) != 0)
{
NofContours++;
}
}
ContourIsHole = new bool[NofContours];
Contour = new GeomVertexList[NofContours];
for (int i = 0; i < NofContours; i++)
{
ContourIsHole[i] = (i == 0);
}
int contourNr = 0;
ArrayList contour = new ArrayList();
for (int i = 0; i < path.PathPoints.Length; i++)
{
contour.Add(path.PathPoints[i]);
if ((path.PathTypes[i] & ((byte)PathPointType.CloseSubpath)) != 0)
{
PointF[] pointArray = (PointF[])contour.ToArray(typeof(PointF));
GeomVertexList vl = new GeomVertexList(pointArray);
Contour[contourNr++] = vl;
contour.Clear();
}
}
}
/*
* public GeomPolygon(IPolygon poly)
* {
*
* }
* */
/*
* public static GeomPolygon FromFile( string filename, bool readHoleFlags )
* {
* return ClipWrapper.ReadPolygon( filename, readHoleFlags );
* }
*/
public void AddContour(GeomVertexList contour, bool contourIsHole)
{
bool[] hole = new bool[NofContours + 1];
GeomVertexList[] cont = new GeomVertexList[NofContours + 1];
for (int i = 0; i < NofContours; i++)
{
hole[i] = ContourIsHole[i];
cont[i] = Contour[i];
}
hole[NofContours] = contourIsHole;
cont[NofContours++] = contour;
ContourIsHole = hole;
Contour = cont;
}
public GeomPolygon(IPolygon polygon, double generalizationDistance = 0)
{
if (polygon == null || polygon.RingCount == 0)
{
return;
}
NofContours = polygon.RingCount;
ContourIsHole = new bool[NofContours];
Contour = new GeomVertexList[NofContours];
for (int i = 0; i < NofContours; i++)
{
ContourIsHole[i] = (i != 0);
}
for (int i = 0; i < polygon.RingCount; i++)
{
Contour[i] = new GeomVertexList(polygon[i]);
}
}
