org.geotools.geometry.iso.coordinate
Class PolygonImpl
java.lang.Object
org.geotools.geometry.iso.coordinate.SurfacePatchImpl
org.geotools.geometry.iso.coordinate.PolygonImpl
- All Implemented Interfaces:
- java.io.Serializable, org.opengis.geometry.coordinate.GenericSurface, org.opengis.geometry.coordinate.Polygon, org.opengis.geometry.primitive.SurfacePatch
- Direct Known Subclasses:
- TriangleImpl
public class PolygonImpl
- extends SurfacePatchImpl
- implements org.opengis.geometry.coordinate.Polygon
- Author:
- Jackson Roehrig & Sanjay Jena
A Polygon (Figure 21) is a surface patch that is defined by a set of boundary
curves and an underlying surface to which these curves adhere. The default is
that the curves are coplanar and the polygon uses planar interpolation in its
interior.
- See Also:
- Serialized Form
Constructor Summary |
PolygonImpl(SurfaceBoundaryImpl boundary)
Constructor This first variant of a constructor of Polygon creates a
Polygon directly from a set of boundary curves (organized into a
SurfaceBoundary) which shall be defined using coplanar Positions as
controlPoints. |
PolygonImpl(SurfaceBoundaryImpl boundary,
SurfaceImpl spanSurf)
This second variant of a constructor of Polygon creates a Polygon lying
on a spanning surface. |
Methods inherited from class java.lang.Object |
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface org.opengis.geometry.coordinate.Polygon |
getBoundary |
Methods inherited from interface org.opengis.geometry.primitive.SurfacePatch |
getInterpolation, getNumDerivativesOnBoundary |
PolygonImpl
public PolygonImpl(SurfaceBoundaryImpl boundary)
- Constructor This first variant of a constructor of Polygon creates a
Polygon directly from a set of boundary curves (organized into a
SurfaceBoundary) which shall be defined using coplanar Positions as
controlPoints. Polygon::Polygon(boundary : SurfaceBondary) : Polygon
NOTE The meaning of exterior in the SurfaceBoundary is consistent with
the plane of the constructed planar polygon.
- Parameters:
boundary
-
PolygonImpl
public PolygonImpl(SurfaceBoundaryImpl boundary,
SurfaceImpl spanSurf)
- This second variant of a constructor of Polygon creates a Polygon lying
on a spanning surface. There is no restriction of the types of
interpolation used by the composite curves used in the SurfaceBoundary,
but they must all be lie on the "spanningSurface" for the process to
succeed. Polygon(boundary : SurfaceBondary, spanSurf : Surface) : Polygon
NOTE It is important that the boundary components be oriented properly
for this to work. It is often the case that in bounded manifolds, such as
the sphere, there is an ambiguity unless the orientation is properly
used.
- Parameters:
boundary
- spanSurf
- -
the Spanning Surface of the polygon
getEnvelope
public org.opengis.geometry.Envelope getEnvelope()
- Description copied from class:
SurfacePatchImpl
- Added to Class requirements of GM_SurfacePatch Returns the envelope of
the SurfacePatch
- Specified by:
getEnvelope
in class SurfacePatchImpl
- Returns:
- Envelope of the CurveSegment
getSurface
public org.opengis.geometry.coordinate.PolyhedralSurface getSurface()
- Specified by:
getSurface
in interface org.opengis.geometry.coordinate.Polygon
- Specified by:
getSurface
in interface org.opengis.geometry.primitive.SurfacePatch
- Overrides:
getSurface
in class SurfacePatchImpl
getSpanningSurface
public java.util.List getSpanningSurface()
- Specified by:
getSpanningSurface
in interface org.opengis.geometry.coordinate.Polygon
getUpNormal
public double[] getUpNormal(org.opengis.geometry.DirectPosition point)
- Specified by:
getUpNormal
in interface org.opengis.geometry.coordinate.GenericSurface
getPerimeter
public double getPerimeter()
- Specified by:
getPerimeter
in interface org.opengis.geometry.coordinate.GenericSurface
getArea
public double getArea()
- Specified by:
getArea
in interface org.opengis.geometry.coordinate.GenericSurface
hashCode
public int hashCode()
- Overrides:
hashCode
in class java.lang.Object
equals
public boolean equals(java.lang.Object obj)
- Overrides:
equals
in class java.lang.Object
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