private void GetPolygonOfArea_MultiPatch(List <Utils.Polygon> polygons, IndexRecord rec)
{
//NOTE: at this point we ignore the type (outer ring, inner ring
//this is not correct and should be implemented correctly
//suggestion: Add a property Exclude to Framework.Data.Polygon
_shpFileStream.Position = rec.Offset + 8 + 36; //skip bounding box and shapetype
int numberOfPolygons = GetInt32(_shpFileStream, true);
int numberOfPoints = GetInt32(_shpFileStream, true);
int[] pointIndexFirstPointPerPolygon = new int[numberOfPolygons];
int[] partsTypePerPolygon = new int[numberOfPolygons];
for (int i = 0; i < numberOfPolygons; i++)
{
pointIndexFirstPointPerPolygon[i] = GetInt32(_shpFileStream, true);
}
for (int i = 0; i < numberOfPolygons; i++)
{
partsTypePerPolygon[i] = GetInt32(_shpFileStream, true);
}
for (int i = 0; i < numberOfPolygons; i++)
{
Utils.Polygon pg = new Utils.Polygon();
int pointCount;
if (i < numberOfPolygons - 1)
{
pointCount = pointIndexFirstPointPerPolygon[i + 1] - pointIndexFirstPointPerPolygon[i];
}
else
{
pointCount = numberOfPoints - pointIndexFirstPointPerPolygon[i];
}
for (int p = 0; p < pointCount; p++)
{
double x = GetDouble(_shpFileStream, true);
double y = GetDouble(_shpFileStream, true);
if (_coordType == CoordType.DutchGrid)
{
pg.AddLocation(Utils.Calculus.LocationFromRD(x, y));
}
else
{
pg.AddLocation(new Utils.Location(y, x));
}
}
polygons.Add(pg);
}
}
private void GetPolygonOfArea_Polygon(List <Utils.Polygon> polygons, IndexRecord rec)
{
_shpFileStream.Position = rec.Offset + 8 + 36; //skip bounding box and shapetype
int numberOfPolygons = GetInt32(_shpFileStream, true);
int numberOfPoints = GetInt32(_shpFileStream, true);
int[] pointIndexFirstPointPerPolygon = new int[numberOfPolygons];
for (int i = 0; i < numberOfPolygons; i++)
{
pointIndexFirstPointPerPolygon[i] = GetInt32(_shpFileStream, true);
}
for (int i = 0; i < numberOfPolygons; i++)
{
Utils.Polygon pg = new Utils.Polygon();
int pointCount;
if (i < numberOfPolygons - 1)
{
pointCount = pointIndexFirstPointPerPolygon[i + 1] - pointIndexFirstPointPerPolygon[i];
}
else
{
pointCount = numberOfPoints - pointIndexFirstPointPerPolygon[i];
}
for (int p = 0; p < pointCount; p++)
{
double x = GetDouble(_shpFileStream, true);
double y = GetDouble(_shpFileStream, true);
if (_coordType == CoordType.DutchGrid)
{
pg.AddLocation(Utils.Calculus.LocationFromRD(x, y));
}
else
{
pg.AddLocation(new Utils.Location(y, x));
}
}
polygons.Add(pg);
}
}