org.locationtech.jts.geom.Geometry.getBoundary()方法的使用及代码示例

x33g5p2x  于2022-01-19 转载在 其他  
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本文整理了Java中org.locationtech.jts.geom.Geometry.getBoundary()方法的一些代码示例，展示了Geometry.getBoundary()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Geometry.getBoundary()方法的具体详情如下：
包路径：org.locationtech.jts.geom.Geometry
类名称：Geometry
方法名：getBoundary

Geometry.getBoundary介绍

[英]Returns the boundary, or an empty geometry of appropriate dimension if this Geometry is empty. (In the case of zero-dimensional geometries, ' an empty GeometryCollection is returned.) For a discussion of this function, see the OpenGIS Simple Features Specification. As stated in SFS Section 2.1.13.1, "the boundary of a Geometry is a set of Geometries of the next lower dimension."
[中]返回边界，如果Geometry为空，则返回相应维度的空几何体。（对于零维几何图形，将返回一个空的GeometryCollection。）有关此功能的讨论，请参阅OpenGIS简单功能规范。如SFS第2.1.13.1节所述，“几何体的边界是一组下一个较低尺寸的几何体。”

代码示例

代码示例来源：origin: geotools/geotools

  1. public static Geometry boundary(Geometry arg0) {
  2.   if (arg0 == null) return null;
  3.   Geometry _this = arg0;
  4.   return _this.getBoundary();
  5. }

代码示例来源：origin: geotools/geotools

  1. public Geometry getBoundary() {
  2.   return geometry.getBoundary();
  3. }

代码示例来源：origin: geotools/geotools

  1. @DescribeProcess(
  2.   title = "Boundary",
  3.   description =
  4.       "Returns a geometry boundary. For polygons, returns a linear ring or multi-linestring equal to the boundary of the polygon(s). For linestrings, returns a multipoint equal to the endpoints of the linestring. For points, returns an empty geometry collection."
  5. )
  6. @DescribeResult(description = "Boundary of the input geometry")
  7. public static Geometry boundary(
  8.     @DescribeParameter(name = "geom", description = "Input geometry") Geometry geom) {
  9.   return geom.getBoundary();
  10. }

代码示例来源：origin: geotools/geotools

  1. g = g.getBoundary(); // line or multiline m

代码示例来源：origin: geotools/geotools

  1. @DescribeProcess(title = "Split Polygon", description = "Splits a polygon by a linestring")
  2. @DescribeResult(description = "The collection of split polygons")
  3. public static Geometry splitPolygon(
  4.     @DescribeParameter(name = "polygon", description = "Polygon to split") Geometry polygon,
  5.     @DescribeParameter(name = "line", description = "Linestring to split by")
  6.         LineString line) {
  7.   Geometry nodedLinework = polygon.getBoundary().union(line);
  8.   Geometry polys = polygonize(nodedLinework);
  9.   // Only keep polygons which are inside the input
  10.   List<Polygon> output = new ArrayList<Polygon>();
  11.   for (int i = 0; i < polys.getNumGeometries(); i++) {
  12.     Polygon candpoly = (Polygon) polys.getGeometryN(i);
  13.     // use interior point to test for inclusion in parent
  14.     if (polygon.contains(candpoly.getInteriorPoint())) {
  15.       output.add(candpoly);
  16.     }
  17.   }
  18.   return polygon.getFactory()
  19.       .createGeometryCollection(GeometryFactory.toGeometryArray(output));
  20. }

代码示例来源：origin: locationtech/jts

  1. public static Geometry boundary(Geometry g) {      return g.getBoundary();  }
  2. public static Geometry convexHull(Geometry g) {      return g.convexHull();  }

代码示例来源：origin: geotools/geotools

  1. if (envelope.contains(polyGeom.getEnvelopeInternal())) {
  2.   if (Polygon.class.isAssignableFrom(polyGeom.getClass())) {
  3.     Geometry polyGeomBoundary = polyGeom.getBoundary();
  4.     if (!polyGeomBoundary.contains(lineGeom)) {
  5.       results.error(

代码示例来源：origin: orbisgis/h2gis

  1. /**
  2.  * @param geometry Geometry instance
  3.  * @return Geometry envelope
  4.  */
  5. public static Geometry getBoundary(Geometry geometry, int srid) {
  6.   if(geometry==null) {
  7.     return null;
  8.   }
  9.   Geometry geometryEnvelope = geometry.getBoundary();
  10.   geometryEnvelope.setSRID(srid);
  11.   return geometryEnvelope;
  12. }

代码示例来源：origin: locationtech/jts

  1. /**
  2.  * Gets the computed boundary.
  3.  * 
  4.  * @return the boundary geometry
  5.  */
  6. public Geometry getBoundary()
  7. {
  8.  if (geom instanceof LineString) return boundaryLineString((LineString) geom);
  9.  if (geom instanceof MultiLineString) return boundaryMultiLineString((MultiLineString) geom);
  10.  return geom.getBoundary();
  11. }

代码示例来源：origin: Geomatys/geotoolkit

  1. /**
  2.  * {@inheritDoc }
  3.  */
  4. @Override
  5. public double getPerimeter() {
  6.   return getJTSGeometry().getBoundary().getLength();
  7. }

代码示例来源：origin: locationtech/jts

  1. private void checkPositiveValid()
  2. {
  3.   Geometry bufCurve = result.getBoundary();
  4.   checkMinimumDistance(input, bufCurve, minValidDistance);
  5.   if (! isValid) return;
  6.   
  7.   checkMaximumDistance(input, bufCurve, maxValidDistance);
  8. }

代码示例来源：origin: locationtech/jts

  1. /**
  2.  * @todo Enable when #isSimple implemented
  3.  */
  4. //  public void testMultiPointIsSimple1() throws Exception {
  5. //    Geometry g = reader.read("MULTIPOINT(10 10, 20 20, 30 30)");
  6. //    assertTrue(g.isSimple());
  7. //  }
  9.  public void testMultiPointGetBoundary() throws Exception {
  10.   Geometry g = reader.read("MULTIPOINT(10 10, 20 20, 30 30)");
  11.   assertTrue(g.getBoundary().isEmpty());
  12.  }

代码示例来源：origin: locationtech/jts

  1. public void testMultiPolygonGetBoundary1() throws Exception {
  2.  Geometry g = reader.read("MULTIPOLYGON("
  3.     + "(  (0 0, 40 0, 40 40, 0 40, 0 0),"
  4.     + "   (10 10, 30 10, 30 30, 10 30, 10 10)  ),"
  5.     + "(  (200 200, 210 200, 210 210, 200 200) )  )");
  6.  Geometry b = reader.read("MULTILINESTRING("
  7.     + "(0 0, 40 0, 40 40, 0 40, 0 0),"
  8.     + "(10 10, 30 10, 30 30, 10 30, 10 10),"
  9.     + "(200 200, 210 200, 210 210, 200 200))");
  10.  assertTrue(b.equalsExact(g.getBoundary()));
  11. }

代码示例来源：origin: locationtech/jts

  1. public void test(int nPts)
  2. {
  3.   builder.setTestDimension(1);
  4.   Geometry target = builder.createSineStar(nPts).getBoundary();
  5.   
  6.  List lines = builder.createTestGeoms(target.getEnvelopeInternal(), 
  7.      NUM_LINES, 1.0, NUM_LINE_PTS);
  8.  
  9.  System.out.println();
  10.  //System.out.println("Running with " + nPts + " points");
  11.  test(target, lines);
  12. }

代码示例来源：origin: locationtech/jts

  1. public void testMultiLineStringGetBoundary2() throws Exception {
  2.  Geometry g = reader.read("MULTILINESTRING("
  3.     + "(0 0,  100 0, 50 50),"
  4.     + "(50 50, 50 0))");
  5.  Geometry m = reader.read("MULTIPOINT(0 0, 50 0)");
  6.  assertTrue(m.equalsExact(g.getBoundary()));
  7. }

代码示例来源：origin: locationtech/jts

  1. public void testPolygonGetBoundary() throws Exception {
  2.  Geometry g = reader.read("POLYGON("
  3.     + "(0 0, 40 0, 40 40, 0 40, 0 0),"
  4.     + "(10 10, 30 10, 30 30, 10 30, 10 10))");
  5.  Geometry b = reader.read("MULTILINESTRING("
  6.     + "(0 0, 40 0, 40 40, 0 40, 0 0),"
  7.     + "(10 10, 30 10, 30 30, 10 30, 10 10))");
  8.  assertTrue(b.equalsExact(g.getBoundary()));
  9. }

代码示例来源：origin: locationtech/jts

  1. Geometry[] createSineStars(int nPts)
  2.  {
  3.   SineStarFactory gsf = new SineStarFactory();
  4.   gsf.setCentre(new Coordinate(0, 0));
  5.   gsf.setSize(100);
  6.   gsf.setNumPoints(nPts);
  7.   
  8.   Geometry g = gsf.createSineStar().getBoundary();
  9.   
  10.   gsf.setCentre(new Coordinate(0, separationDist));
  12.   Geometry g2 = gsf.createSineStar().getBoundary();
  13.   
  14.   return new Geometry[] { g, g2 };
  15.   
  16.  }
  17. }

代码示例来源：origin: locationtech/jts

  1. LineString createTestLine(Coordinate base, double size, int nPts)
  2.  {
  3.   GeometricShapeFactory gsf = new GeometricShapeFactory();
  4.   gsf.setCentre(base);
  5.   gsf.setSize(size);
  6.   gsf.setNumPoints(nPts);
  7.   Geometry circle = gsf.createCircle();
  8. //    System.out.println(circle);
  9.   return (LineString) circle.getBoundary();
  10.  }

代码示例来源：origin: locationtech/jts

  1. Geometry createLine(Coordinate base, double size, int nPts)
  2.  {
  3.   SineStarFactory gsf = new SineStarFactory();
  4.   gsf.setCentre(base);
  5.   gsf.setSize(size);
  6.   gsf.setNumPoints(nPts);
  7.   Geometry circle = gsf.createSineStar();
  8. //    System.out.println(circle);
  9.   return circle.getBoundary();
  10.  }

代码示例来源：origin: locationtech/jts

  1. Geometry createLine(Coordinate base, double size, int nPts)
  2.  {
  3.   GeometricShapeFactory gsf = new GeometricShapeFactory();
  4.   gsf.setCentre(base);
  5.   gsf.setSize(size);
  6.   gsf.setNumPoints(nPts);
  7.   Geometry circle = gsf.createCircle();
  8. //    System.out.println(circle);
  9.   return circle.getBoundary();
  10.  }

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