public static IGeometry GetExample14()
{
const int PointCount = 100;
const double ZMin = 0;
const double ZMax = 4;
//Extrusion: Square Shaped Base Geometry Extruded Between Single TIN-Based Functional Surface
IGeometryCollection multiPatchGeometryCollection = new MultiPatchClass();
//Base Geometry
IEnvelope envelope = new EnvelopeClass();
envelope.XMin = -10;
envelope.XMax = 10;
envelope.YMin = -10;
envelope.YMax = 10;
IGeometry baseGeometry = envelope as IGeometry;
//Upper Functional Surface
ITinEdit tinEdit = new TinClass();
tinEdit.InitNew(envelope);
Random random = new Random();
for (int i = 0; i < PointCount; i++)
{
double x = envelope.XMin + (envelope.XMax - envelope.XMin) * random.NextDouble();
double y = envelope.YMin + (envelope.YMax - envelope.YMin) * random.NextDouble();
double z = ZMin + (ZMax - ZMin) * random.NextDouble();
IPoint point = GeometryUtilities.ConstructPoint3D(x, y, z);
tinEdit.AddPointZ(point, 0);
}
IFunctionalSurface functionalSurface = tinEdit as IFunctionalSurface;
IConstructMultiPatch constructMultiPatch = new MultiPatchClass();
constructMultiPatch.ConstructExtrudeBetween(functionalSurface, functionalSurface, baseGeometry);
return(constructMultiPatch as IGeometry);
}
public static IGeometry GetExample15()
{
const double CircleDegrees = 360.0;
const int CircleDivisions = 36;
const double VectorComponentOffset = 0.0000001;
const double CircleRadius = 9.5;
const int PointCount = 100;
const double UpperZMin = 7;
const double UpperZMax = 10;
const double LowerZMin = 0;
const double LowerZMax = 3;
//Extrusion: Circle Shaped Base Geometry Extruded Between Two Different TIN-Based Functional Surfaces
IGeometryCollection multiPatchGeometryCollection = new MultiPatchClass();
//Base Geometry
IPointCollection polygonPointCollection = new PolygonClass();
IPoint originPoint = GeometryUtilities.ConstructPoint3D(0, 0, 0);
IVector3D upperAxisVector3D = GeometryUtilities.ConstructVector3D(0, 0, 10);
IVector3D lowerAxisVector3D = GeometryUtilities.ConstructVector3D(0, 0, -10);
lowerAxisVector3D.XComponent += VectorComponentOffset;
IVector3D normalVector3D = upperAxisVector3D.CrossProduct(lowerAxisVector3D) as IVector3D;
normalVector3D.Magnitude = CircleRadius;
double rotationAngleInRadians = GeometryUtilities.GetRadians(CircleDegrees / CircleDivisions);
for (int i = 0; i < CircleDivisions; i++)
{
normalVector3D.Rotate(-1 * rotationAngleInRadians, upperAxisVector3D);
IPoint vertexPoint = GeometryUtilities.ConstructPoint2D(originPoint.X + normalVector3D.XComponent,
originPoint.Y + normalVector3D.YComponent);
polygonPointCollection.AddPoint(vertexPoint, ref _missing, ref _missing);
}
IPolygon polygon = polygonPointCollection as IPolygon;
polygon.Close();
IGeometry baseGeometry = polygon as IGeometry;
ITopologicalOperator topologicalOperator = polygon as ITopologicalOperator;
topologicalOperator.Simplify();
//Functional Surfaces
IEnvelope envelope = new EnvelopeClass();
envelope.XMin = -10;
envelope.XMax = 10;
envelope.YMin = -10;
envelope.YMax = 10;
Random random = new Random();
//Upper Functional Surface
ITinEdit upperTinEdit = new TinClass();
upperTinEdit.InitNew(envelope);
for (int i = 0; i < PointCount; i++)
{
double x = envelope.XMin + (envelope.XMax - envelope.XMin) * random.NextDouble();
double y = envelope.YMin + (envelope.YMax - envelope.YMin) * random.NextDouble();
double z = UpperZMin + (UpperZMax - UpperZMin) * random.NextDouble();
IPoint point = GeometryUtilities.ConstructPoint3D(x, y, z);
upperTinEdit.AddPointZ(point, 0);
}
IFunctionalSurface upperFunctionalSurface = upperTinEdit as IFunctionalSurface;
//Lower Functional Surface
ITinEdit lowerTinEdit = new TinClass();
lowerTinEdit.InitNew(envelope);
for (int i = 0; i < PointCount; i++)
{
double x = envelope.XMin + (envelope.XMax - envelope.XMin) * random.NextDouble();
double y = envelope.YMin + (envelope.YMax - envelope.YMin) * random.NextDouble();
double z = LowerZMin + (LowerZMax - LowerZMin) * random.NextDouble();
IPoint point = GeometryUtilities.ConstructPoint3D(x, y, z);
lowerTinEdit.AddPointZ(point, 0);
}
IFunctionalSurface lowerFunctionalSurface = lowerTinEdit as IFunctionalSurface;
IConstructMultiPatch constructMultiPatch = new MultiPatchClass();
constructMultiPatch.ConstructExtrudeBetween(upperFunctionalSurface, lowerFunctionalSurface, baseGeometry);
return(constructMultiPatch as IGeometry);
}
public static IGeometry GetExample15()
{
const double CircleDegrees = 360.0;
const int CircleDivisions = 36;
const double VectorComponentOffset = 0.0000001;
const double CircleRadius = 9.5;
const int PointCount = 100;
const double UpperZMin = 7;
const double UpperZMax = 10;
const double LowerZMin = 0;
const double LowerZMax = 3;
//Extrusion: Circle Shaped Base Geometry Extruded Between Two Different TIN-Based Functional Surfaces
IGeometryCollection multiPatchGeometryCollection = new MultiPatchClass();
//Base Geometry
IPointCollection polygonPointCollection = new PolygonClass();
IPoint originPoint = GeometryUtilities.ConstructPoint3D(0, 0, 0);
IVector3D upperAxisVector3D = GeometryUtilities.ConstructVector3D(0, 0, 10);
IVector3D lowerAxisVector3D = GeometryUtilities.ConstructVector3D(0, 0, -10);
lowerAxisVector3D.XComponent += VectorComponentOffset;
IVector3D normalVector3D = upperAxisVector3D.CrossProduct(lowerAxisVector3D) as IVector3D;
normalVector3D.Magnitude = CircleRadius;
double rotationAngleInRadians = GeometryUtilities.GetRadians(CircleDegrees / CircleDivisions);
for (int i = 0; i < CircleDivisions; i++)
{
normalVector3D.Rotate(-1 * rotationAngleInRadians, upperAxisVector3D);
IPoint vertexPoint = GeometryUtilities.ConstructPoint2D(originPoint.X + normalVector3D.XComponent,
originPoint.Y + normalVector3D.YComponent);
polygonPointCollection.AddPoint(vertexPoint, ref _missing, ref _missing);
}
IPolygon polygon = polygonPointCollection as IPolygon;
polygon.Close();
IGeometry baseGeometry = polygon as IGeometry;
ITopologicalOperator topologicalOperator = polygon as ITopologicalOperator;
topologicalOperator.Simplify();
//Functional Surfaces
IEnvelope envelope = new EnvelopeClass();
envelope.XMin = -10;
envelope.XMax = 10;
envelope.YMin = -10;
envelope.YMax = 10;
Random random = new Random();
//Upper Functional Surface
ITinEdit upperTinEdit = new TinClass();
upperTinEdit.InitNew(envelope);
for (int i = 0; i < PointCount; i++)
{
double x = envelope.XMin + (envelope.XMax - envelope.XMin) * random.NextDouble();
double y = envelope.YMin + (envelope.YMax - envelope.YMin) * random.NextDouble();
double z = UpperZMin + (UpperZMax - UpperZMin) * random.NextDouble();
IPoint point = GeometryUtilities.ConstructPoint3D(x, y, z);
upperTinEdit.AddPointZ(point, 0);
}
IFunctionalSurface upperFunctionalSurface = upperTinEdit as IFunctionalSurface;
//Lower Functional Surface
ITinEdit lowerTinEdit = new TinClass();
lowerTinEdit.InitNew(envelope);
for (int i = 0; i < PointCount; i++)
{
double x = envelope.XMin + (envelope.XMax - envelope.XMin) * random.NextDouble();
double y = envelope.YMin + (envelope.YMax - envelope.YMin) * random.NextDouble();
double z = LowerZMin + (LowerZMax - LowerZMin) * random.NextDouble();
IPoint point = GeometryUtilities.ConstructPoint3D(x, y, z);
lowerTinEdit.AddPointZ(point, 0);
}
IFunctionalSurface lowerFunctionalSurface = lowerTinEdit as IFunctionalSurface;
IConstructMultiPatch constructMultiPatch = new MultiPatchClass();
constructMultiPatch.ConstructExtrudeBetween(upperFunctionalSurface, lowerFunctionalSurface, baseGeometry);
return constructMultiPatch as IGeometry;
}
public static IGeometry GetExample14()
{
const int PointCount = 100;
const double ZMin = 0;
const double ZMax = 4;
//Extrusion: Square Shaped Base Geometry Extruded Between Single TIN-Based Functional Surface
IGeometryCollection multiPatchGeometryCollection = new MultiPatchClass();
//Base Geometry
IEnvelope envelope = new EnvelopeClass();
envelope.XMin = -10;
envelope.XMax = 10;
envelope.YMin = -10;
envelope.YMax = 10;
IGeometry baseGeometry = envelope as IGeometry;
//Upper Functional Surface
ITinEdit tinEdit = new TinClass();
tinEdit.InitNew(envelope);
Random random = new Random();
for (int i = 0; i < PointCount; i++)
{
double x = envelope.XMin + (envelope.XMax - envelope.XMin) * random.NextDouble();
double y = envelope.YMin + (envelope.YMax - envelope.YMin) * random.NextDouble();
double z = ZMin + (ZMax - ZMin) * random.NextDouble();
IPoint point = GeometryUtilities.ConstructPoint3D(x, y, z);
tinEdit.AddPointZ(point, 0);
}
IFunctionalSurface functionalSurface = tinEdit as IFunctionalSurface;
IConstructMultiPatch constructMultiPatch = new MultiPatchClass();
constructMultiPatch.ConstructExtrudeBetween(functionalSurface, functionalSurface, baseGeometry);
return constructMultiPatch as IGeometry;
}
