private static ResourceClass.GWEDFile.PolygonStruct GetGWEDPolygon(
FileStream fileStream, byte[] polyBuff, byte[] vtBuff, int offset)
{
// (1) get the polygon
FileStruct.TSWedPolygon tsWedPolygon =
(FileStruct.TSWedPolygon)ReadBuffer <FileStruct.TSWedPolygon>
(fileStream, polyBuff, FileStruct.TSWedPolygonSize);
ResourceClass.GWEDFile.PolygonStruct poly =
ResourceClass.GWEDFile.CreatePolygonStruct(ref tsWedPolygon);
// (2) get the set of points for each polygon
long polypos = fileStream.Position;
fileStream.Position = (tsWedPolygon.vertexStart * 4) + offset;
for (int v = 0; v < tsWedPolygon.vertexCount; v++)
{
poly.vertices[v] = (XPoint)ReadBuffer <XPoint>(fileStream, vtBuff, 4);
}
fileStream.Position = polypos;
return(poly);
}
public static PolygonStruct CreatePolygonStruct(ref FileStruct.TSWedPolygon tsWedPolygon)
{
PolygonStruct ss = new PolygonStruct();
ss.flag = tsWedPolygon.flag;
ss.boundBox.left = tsWedPolygon.minX;
ss.boundBox.top = tsWedPolygon.minY;
ss.boundBox.right = tsWedPolygon.maxX;
ss.boundBox.bottom = tsWedPolygon.maxY;
ss.vertices = new XPoint[tsWedPolygon.vertexCount];
return(ss);
}
