internal static com.epl.geometry.Geometry PolylineMinusArea_(com.epl.geometry.Geometry geometry, com.epl.geometry.Geometry area, int area_type, com.epl.geometry.SpatialReference sr, com.epl.geometry.ProgressTracker progress_tracker)
{
// construct the complement of the Polygon (or Envelope)
com.epl.geometry.Envelope envelope = new com.epl.geometry.Envelope();
geometry.QueryEnvelope(envelope);
com.epl.geometry.Envelope2D env_2D = new com.epl.geometry.Envelope2D();
area.QueryEnvelope2D(env_2D);
envelope.Merge(env_2D);
double dw = 0.1 * envelope.GetWidth();
double dh = 0.1 * envelope.GetHeight();
envelope.Inflate(dw, dh);
com.epl.geometry.Polygon complement = new com.epl.geometry.Polygon();
complement.AddEnvelope(envelope, false);
com.epl.geometry.MultiPathImpl complementImpl = (com.epl.geometry.MultiPathImpl)(complement._getImpl());
if (area_type == com.epl.geometry.Geometry.GeometryType.Polygon)
{
com.epl.geometry.MultiPathImpl polygonImpl = (com.epl.geometry.MultiPathImpl)(area._getImpl());
complementImpl.Add(polygonImpl, true);
}
else
{
complementImpl.AddEnvelope((com.epl.geometry.Envelope)(area), true);
}
com.epl.geometry.OperatorFactoryLocal projEnv = com.epl.geometry.OperatorFactoryLocal.GetInstance();
com.epl.geometry.OperatorIntersection operatorIntersection = (com.epl.geometry.OperatorIntersection)projEnv.GetOperator(com.epl.geometry.Operator.Type.Intersection);
com.epl.geometry.Geometry difference = operatorIntersection.Execute(geometry, complement, sr, progress_tracker);
return(difference);
}
public override void QueryEnvelope(com.epl.geometry.Envelope env)
{
env.SetEmpty();
if (m_description != env.m_description)
{
env.AssignVertexDescription(m_description);
}
env.Merge(this);
}
// Checked vs. Jan 11, 2011
/// <summary>\internal Updates x, y intervals.</summary>
public virtual void _updateXYImpl(bool bExact)
{
m_envelope.SetEmpty();
com.epl.geometry.AttributeStreamOfDbl stream = (com.epl.geometry.AttributeStreamOfDbl)m_vertexAttributes[0];
com.epl.geometry.Point2D pt = new com.epl.geometry.Point2D();
for (int i = 0; i < m_pointCount; i++)
{
stream.Read(2 * i, pt);
m_envelope.Merge(pt);
}
}
public override com.epl.geometry.ogc.OGCGeometry Envelope()
{
com.epl.geometry.GeometryCursor gc = GetEsriGeometryCursor();
com.epl.geometry.Envelope env = new com.epl.geometry.Envelope();
for (com.epl.geometry.Geometry g = gc.Next(); g != null; g = gc.Next())
{
com.epl.geometry.Envelope e = new com.epl.geometry.Envelope();
g.QueryEnvelope(e);
env.Merge(e);
}
com.epl.geometry.Polygon polygon = new com.epl.geometry.Polygon();
polygon.AddEnvelope(env, false);
return(new com.epl.geometry.ogc.OGCPolygon(polygon, esriSR));
}
public virtual void TestEnvelope2000()
{
com.epl.geometry.Point[] points = new com.epl.geometry.Point[2000];
System.Random random = new System.Random(69);
for (int i = 0; i < 2000; i++)
{
points[i] = new com.epl.geometry.Point();
points[i].SetX(random.NextDouble() * 100);
points[i].SetY(random.NextDouble() * 100);
}
for (int iter = 0; iter < 2; iter++)
{
// long startTime = Sharpen.Runtime.NanoTime();
com.epl.geometry.Envelope geomExtent = new com.epl.geometry.Envelope();
com.epl.geometry.Envelope fullExtent = new com.epl.geometry.Envelope();
for (int i_1 = 0; i_1 < 2000; i_1++)
{
points[i_1].QueryEnvelope(geomExtent);
fullExtent.Merge(geomExtent);
}
// long endTime = Sharpen.Runtime.NanoTime();
}
}