public interface GeometryFactory
GeometryFactory.| Modifier and Type | Method and Description |
|---|---|
Arc |
createArc(Position startPoint,
Position endPoint,
double bulge,
double[] normal)
Takes two positions and the offset of the midpoint of the arc from the midpoint of the chord,
given by a distance and direction, and constructs the corresponding arc.
|
Arc |
createArc(Position startPoint,
Position midPoint,
Position endPoint)
Takes three positions and constructs the corresponding arc.
|
ArcByBulge |
createArcByBulge(Position startPoint,
Position endPoint,
double bulge,
double[] normal)
Equivalents to the second
constructor of arc, except the bulge representation is maintained.
|
ArcString |
createArcString(List<Position> points)
Takes a sequence of positions and constructs a sequence of 3-point arcs
jointing them.
|
ArcStringByBulge |
createArcStringByBulge(List<Position> points,
double[] bulges,
List<double[]> normals)
Equivalent to the second
constructor of arc, except the bulge representation is maintained internal to the object.
|
BSplineCurve |
createBSplineCurve(int degree,
PointArray points,
List<Knot> knots,
KnotType knotSpec)
Constructs a B-spline curve.
|
BSplineSurface |
createBSplineSurface(List<PointArray> points,
int[] degree,
List<Knot>[] knots,
KnotType knotSpec)
Constructs a B-spline surface.
|
DirectPosition |
createDirectPosition()
Deprecated.
Moved to PositionFactory
|
DirectPosition |
createDirectPosition(double[] coordinates)
Deprecated.
Moved to PositionFactory
|
Envelope |
createEnvelope(DirectPosition lowerCorner,
DirectPosition upperCorner)
Creates a new Envelope with the given corners.
|
Geodesic |
createGeodesic(Position startPoint,
Position endPoint)
Takes two positions and creates the appropriate geodesic joining them.
|
GeodesicString |
createGeodesicString(List<Position> points)
Takes two or more positions, interpolates using a geodesic defined from the geoid (or
ellipsoid) of the coordinate reference system being
used, and creates the appropriate geodesic string joining them.
|
LineSegment |
createLineSegment(Position startPoint,
Position endPoint)
Takes two positions and creates the appropriate line segment joining them.
|
LineString |
createLineString(List<Position> points)
Takes two or more positions and creates the appropriate line string joining them.
|
MultiPrimitive |
createMultiPrimitive()
Deprecated.
This method is temporary. It will move to some
MultiPrimitive
factory when the creation of Geometry interfaces will be completed. See GEO-1 on JIRA. |
Polygon |
createPolygon(SurfaceBoundary boundary)
Creates a polygon directly from a set of boundary curves (organized into a surface boundary)
which shall be defined using coplanar positions as control points.
|
Polygon |
createPolygon(SurfaceBoundary boundary,
Surface spanSurface)
Creates a polygon lying on a spanning surface.
|
PolyhedralSurface |
createPolyhedralSurface(List<Polygon> tiles)
Constructs polyhedral surface from the facet polygons.
|
Tin |
createTin(Set<Position> post,
Set<LineString> stopLines,
Set<LineString> breakLines,
double maxLength)
Constructs a restricted Delaunay network from triangle corners (posts), breaklines,
stoplines, and maximum length of a triangle side.
|
CoordinateReferenceSystem |
getCoordinateReferenceSystem()
Returns the coordinate reference system in use for all geometries to be created through this interface.
|
CoordinateReferenceSystem getCoordinateReferenceSystem()
@Deprecated DirectPosition createDirectPosition()
@Deprecated DirectPosition createDirectPosition(double[] coordinates)
Envelope createEnvelope(DirectPosition lowerCorner, DirectPosition upperCorner) throws MismatchedReferenceSystemException, MismatchedDimensionException
lowerCorner - A coordinate position consisting of all the maximal ordinates for each
dimension for all points within the envelope.upperCorner - A coordinate position consisting of all the minimal ordinates for each
dimension for all points within the envelope.MismatchedReferenceSystemException - If the coordinate positions don't use compatible
coordinate reference system.MismatchedDimensionException - If the coordinate position don't have compatible
dimension.@UML(identifier="GM_LineSegment(GM_Position[2])", obligation=MANDATORY, specification=ISO_19107) LineSegment createLineSegment(Position startPoint, Position endPoint) throws MismatchedReferenceSystemException, MismatchedDimensionException
startPoint - The start point.endPoint - The end point.MismatchedReferenceSystemException - If geometric objects given in argument don't use
compatible coordinate reference system.MismatchedDimensionException - If geometric objects given in argument don't have the
expected dimension.@UML(identifier="GM_LineString(GM_Position[2..n])", obligation=MANDATORY, specification=ISO_19107) LineString createLineString(List<Position> points) throws MismatchedReferenceSystemException, MismatchedDimensionException
MismatchedReferenceSystemException - If geometric objects given in argument don't use
compatible coordinate reference system.MismatchedDimensionException - If geometric objects given in argument don't have the
expected dimension.Geodesic createGeodesic(Position startPoint, Position endPoint) throws MismatchedReferenceSystemException, MismatchedDimensionException
startPoint - The start point.endPoint - The end point.MismatchedReferenceSystemException - If geometric objects given in argument don't use
compatible coordinate reference system.MismatchedDimensionException - If geometric objects given in argument don't have the
expected dimension.@UML(identifier="GM_GeodesicString(GM_Position[2..n])", obligation=MANDATORY, specification=ISO_19107) GeodesicString createGeodesicString(List<Position> points) throws MismatchedReferenceSystemException, MismatchedDimensionException
MismatchedReferenceSystemException - If geometric objects given in argument don't use
compatible coordinate reference system.MismatchedDimensionException - If geometric objects given in argument don't have the
expected dimension.@UML(identifier="GM_Arc(GM_Position[3])", obligation=MANDATORY, specification=ISO_19107) Arc createArc(Position startPoint, Position midPoint, Position endPoint) throws MismatchedReferenceSystemException, MismatchedDimensionException
startPoint - The start point.midPoint - Some point on the arc neither at the start or end.endPoint - The end point.MismatchedReferenceSystemException - If geometric objects given in argument don't use
compatible coordinate reference system.MismatchedDimensionException - If geometric objects given in argument don't have the
expected dimension.@UML(identifier="GM_Arc(GM_Position[2],Real,Vector)", obligation=MANDATORY, specification=ISO_19107) Arc createArc(Position startPoint, Position endPoint, double bulge, double[] normal) throws MismatchedReferenceSystemException, MismatchedDimensionException
In 2D coordinate reference systems, the bulge can be given a sign and the normal can be assumed to be the perpendicular to the line segment between the start and end point of the arc (the chord of the arc), pointing left. For example if the two points are P0 = (x0, y0) and P1 = (x1, y1), and the bulge is b, then the vector in the direction of P1 from P0 is:midPoint = ((startPoint + endPoint)/2.0) + bulge×normal
u = (u0, u1) =
(x1-x0,
y1-y0) / sqrt((x1-x0)2 +
(y1-y0)2)
To complete a right-handed local coordinate system {u,v}, the two vectors must
have a vector dot product of zero and a vector cross product of 1. By inspection, the
leftward normal to complete the pair is:
v = (v0, v1) = (-u1, u0)The midpoint of the arc, which is the midpoint of the chord offset by the bulge, becomes:
m = (P0 + P1)/2 + b×vThis is leftward if b > 0 and rightward if b < 0.
startPoint - The start point.endPoint - The end point.bulge - The distance of the midpoint of the arc from the midpoint of the chord.normal - A direction normal to the chord.MismatchedReferenceSystemException - If geometric objects given in argument don't use
compatible coordinate reference system.MismatchedDimensionException - If geometric objects given in argument don't have the
expected dimension.@UML(identifier="GM_ArcString(GM_Position[3, 5, 7...])", obligation=MANDATORY, specification=ISO_19107) ArcString createArcString(List<Position> points) throws MismatchedReferenceSystemException, MismatchedDimensionException
MismatchedReferenceSystemException - If geometric objects given in argument don't use
compatible coordinate reference system.MismatchedDimensionException - If geometric objects given in argument don't have the
expected dimension.@UML(identifier="GM_ArcByBulge(GM_Position[2],Real,Vector)", obligation=MANDATORY, specification=ISO_19107) ArcByBulge createArcByBulge(Position startPoint, Position endPoint, double bulge, double[] normal) throws MismatchedReferenceSystemException, MismatchedDimensionException
midPoint = ((startPoint + endPoint)/2.0) + bulge×normal
startPoint - The start point.endPoint - The end point.bulge - The distance of the midpoint of the arc from the midpoint of the chord.normal - A direction normal to the chord.MismatchedReferenceSystemException - If geometric objects given in argument don't use
compatible coordinate reference system.MismatchedDimensionException - If geometric objects given in argument don't have the
expected dimension.@UML(identifier="GM_ArcStringByBulge(GM_Position[2..n],Real[1..n],Vector[1..n])", obligation=MANDATORY, specification=ISO_19107) ArcStringByBulge createArcStringByBulge(List<Position> points, double[] bulges, List<double[]> normals) throws MismatchedReferenceSystemException, MismatchedDimensionException
midPoint[n] = ((points[n] + points[n+1])/2.0) + (bulge * normal)
points - The points to use as start and end points for each arc. This list size must be equals to the bulge array length plus 1.bulges - The distances of the midpoint of the arc from the midpoint of the chord.normals - The directions normal to the chord. This list size must be the same than the
bulge array length.MismatchedReferenceSystemException - If geometric objects given in argument don't use
compatible coordinate reference system.MismatchedDimensionException - If geometric objects given in argument don't have the
expected dimension.@UML(identifier="GM_BSplineCurve(Integer,GM_PointArray,Sequence<GM_Knot>,GM_KnotType)", obligation=MANDATORY, specification=ISO_19107) BSplineCurve createBSplineCurve(int degree, PointArray points, List<Knot> knots, KnotType knotSpec) throws MismatchedReferenceSystemException, MismatchedDimensionException
knotSpec is null, then the KnotType is uniform and the knots are evenly spaced, and except for the first and last have
multiplicity = 1. At the ends the knots are of multiplicity = degree+1. If the knotType is uniform they need not be specified.
NOTE: If the B-spline curve is uniform and degree = 1, the B-spline is
equivalent to a polyline (LineString). If the knotType is piecewise Bezier, then the knots are defaulted so that they are
evenly spaced, and except for the first and last have multiplicity equal to degree. At the
ends the knots are of multiplicity = degree+1.
degree - The algebraic degree of the basis functions.points - An array of points that are used in the interpolation in this spline curve.knots - The sequence of distinct knots used to define the spline basis functions.knotSpec - The type of knot distribution used in defining this spline.MismatchedReferenceSystemException - If geometric objects given in argument don't use
compatible coordinate reference system.MismatchedDimensionException - If geometric objects given in argument don't have the
expected dimension.@UML(identifier="GM_BSplineSurface(Sequence<GM_PointArray>,Integer,Sequence<GM_Knot>,GM_KnotType)", obligation=MANDATORY, specification=ISO_19107) BSplineSurface createBSplineSurface(List<PointArray> points, int[] degree, List<Knot>[] knots, KnotType knotSpec) throws MismatchedReferenceSystemException, MismatchedDimensionException
knotSpec is not present, then the knotType is uniform and the knots are evenly spaced, and, except for the first and last,
have multiplicity = 1. At the ends the knots are of multiplicity = degree+1. If the knotType is uniform they need not be specified.points - Arrays of points that are used in the interpolation in this spline surface.degree - The algebraic degree of the basis functions for the first and second parameter,
as an array of length 1 or 2. If only one value is given, then the two degrees are equal.knots - The sequence of knots as an array of length 2, or null if unspecified.knotSpec - The type of knot distribution used in defining this spline, or null
if unspecified.MismatchedReferenceSystemException - If geometric objects given in argument don't use
compatible coordinate reference system.MismatchedDimensionException - If geometric objects given in argument don't have the
expected dimension.@UML(identifier="GM_Polygon(GM_SurfaceBondary)", obligation=MANDATORY, specification=ISO_19107) Polygon createPolygon(SurfaceBoundary boundary) throws MismatchedReferenceSystemException, MismatchedDimensionException
NOTE: The meaning of exterior in the surface boundary is consistent with the plane of the constructed planar polygon.
boundary - The surface boundary.MismatchedReferenceSystemException - If geometric objects given in argument don't use
compatible coordinate reference system.MismatchedDimensionException - If geometric objects given in argument don't have the
expected dimension.@UML(identifier="GM_Polygon(GM_SurfaceBondary,GM_Surface)", obligation=MANDATORY, specification=ISO_19107) Polygon createPolygon(SurfaceBoundary boundary, Surface spanSurface) throws MismatchedReferenceSystemException, MismatchedDimensionException
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.
boundary - The surface boundary.spanSurface - The spanning surface.MismatchedReferenceSystemException - If geometric objects given in argument don't use
compatible coordinate reference system.MismatchedDimensionException - If geometric objects given in argument don't have the
expected dimension.@UML(identifier="GM_Tin(Set<GM_Position>,Set<GM_LineString>,Set<GM_LineString>,Number)", obligation=MANDATORY, specification=ISO_19107) Tin createTin(Set<Position> post, Set<LineString> stopLines, Set<LineString> breakLines, double maxLength) throws MismatchedReferenceSystemException, MismatchedDimensionException
post - The corners of the triangles in the TIN.stopLines - lines where the local continuity or regularity of the surface is
questionable.breakLines - lines of a critical nature to the shape of the surface.maxLength - Maximal length for retention.MismatchedReferenceSystemException - If geometric objects given in argument don't use
compatible coordinate reference system.MismatchedDimensionException - If geometric objects given in argument don't have the
expected dimension.@UML(identifier="GM_PolyhedralSurace(GM_Polygon)", obligation=MANDATORY, specification=ISO_19107) PolyhedralSurface createPolyhedralSurface(List<Polygon> tiles) throws MismatchedReferenceSystemException, MismatchedDimensionException
tiles - The facet polygons. Must contains at least one polygon.MismatchedReferenceSystemException - If geometric objects given in argument don't use
compatible coordinate reference system.MismatchedDimensionException - If geometric objects given in argument don't have the
expected dimension.@Deprecated MultiPrimitive createMultiPrimitive()
MultiPrimitive
factory when the creation of Geometry interfaces will be completed. See GEO-1 on JIRA.Copyright © 1996–2019 Geotools. All rights reserved.