org.locationtech.jts.geom.Geometry.getNumPoints()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.getNumPoints()方法的一些代码示例，展示了Geometry.getNumPoints()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.getNumPoints()方法的具体详情如下：
包路径：org.locationtech.jts.geom.Geometry
类名称：Geometry
方法名：getNumPoints

Geometry.getNumPoints介绍

[英]Returns the count of this Geometrys vertices. The Geometry s contained by composite Geometrys must be Geometry's; that is, they must implement getNumPoints
[中]返回此Geometrys顶点的计数。复合Geometrys包含的Geometrys必须是几何体的；也就是说，他们必须实现getNumPoints

代码示例

代码示例来源：origin: hibernate/hibernate-orm

  1. private boolean testVerticesEquality(Geometry geom1, Geometry geom2) {
  2.     if ( geom1.getNumPoints() != geom2.getNumPoints() ) {
  3.       return false;
  4.     }
  5.     for ( int i = 0; i < geom1.getNumPoints(); i++ ) {
  6.       Coordinate cn1 = geom1.getCoordinates()[i];
  7.       Coordinate cn2 = geom2.getCoordinates()[i];
  8.       if ( !cn1.equals2D( cn2 ) ) {
  9.         return false;
  10.       }
  11.     }
  12.     return true;
  13.   }
  14. }

代码示例来源：origin: hibernate/hibernate-orm

  1. private boolean testVerticesEquality(Geometry geom1, Geometry geom2) {
  2.     if ( geom1.getNumPoints() != geom2.getNumPoints() ) {
  3.       return false;
  4.     }
  5.     for ( int i = 0; i < geom1.getNumPoints(); i++ ) {
  6.       Coordinate cn1 = geom1.getCoordinates()[i];
  7.       Coordinate cn2 = geom2.getCoordinates()[i];
  8.       if ( !cn1.equals2D( cn2 ) ) {
  9.         return false;
  10.       }
  11.     }
  12.     return true;
  13.   }
  14. }

代码示例来源：origin: prestodb/presto

  1. private static void writePolyline(Geometry geometry, SliceOutput output, boolean multitype)
  2. {
  3.   int numParts;
  4.   int numPoints = geometry.getNumPoints();
  5.   if (multitype) {
  6.     numParts = geometry.getNumGeometries();
  7.     output.writeByte(GeometrySerializationType.MULTI_LINE_STRING.code());
  8.   }
  9.   else {
  10.     numParts = numPoints > 0 ? 1 : 0;
  11.     output.writeByte(GeometrySerializationType.LINE_STRING.code());
  12.   }
  13.   output.writeInt(EsriShapeType.POLYLINE.code);
  14.   writeEnvelope(geometry, output);
  15.   output.writeInt(numParts);
  16.   output.writeInt(numPoints);
  17.   int partIndex = 0;
  18.   for (int i = 0; i < numParts; i++) {
  19.     output.writeInt(partIndex);
  20.     partIndex += geometry.getGeometryN(i).getNumPoints();
  21.   }
  22.   writeCoordinates(geometry.getCoordinates(), output);
  23. }

代码示例来源：origin: hibernate/hibernate-orm

  1. protected boolean testTypeAndVertexEquality(Geometry geom1, Geometry geom2) {
  2.   if ( !geom1.getGeometryType().equals( geom2.getGeometryType() ) ) {
  3.     return false;
  4.   }
  5.   if ( geom1.getNumGeometries() != geom2.getNumGeometries() ) {
  6.     return false;
  7.   }
  8.   if ( geom1.getNumPoints() != geom2.getNumPoints() ) {
  9.     return false;
  10.   }
  11.   Coordinate[] coordinates1 = geom1.getCoordinates();
  12.   Coordinate[] coordinates2 = geom2.getCoordinates();
  13.   for ( int i = 0; i < coordinates1.length; i++ ) {
  14.     Coordinate c1 = coordinates1[i];
  15.     Coordinate c2 = coordinates2[i];
  16.     if ( !testCoordinateEquality( c1, c2 ) ) {
  17.       return false;
  18.     }
  19.   }
  20.   return true;
  21. }

代码示例来源：origin: geotools/geotools

  1. public static int numPoints(Geometry arg0) {
  2.   if (arg0 == null) return 0;
  3.   Geometry _this = arg0;
  4.   return _this.getNumPoints();
  5. }

代码示例来源：origin: geotools/geotools

  1. public int getNumPoints() {
  2.   return geometry.getNumPoints();
  3. }

代码示例来源：origin: prestodb/presto

  1. int numPoints = geometry.getNumPoints();
  2. for (int i = 0; i < numGeometries; i++) {
  3.   Polygon polygon = (Polygon) geometry.getGeometryN(i);

代码示例来源：origin: geotools/geotools

  1. @DescribeProcess(
  2.   title = "Number of Points",
  3.   description = "Returns the number of vertices in a given geometry."
  4. )
  5. @DescribeResult(description = "Total number of vertices")
  6. public static int numPoints(
  7.     @DescribeParameter(name = "geom", description = "Input geometry") Geometry geom) {
  8.   return geom.getNumPoints();
  9. }

代码示例来源：origin: geotools/geotools

  1. /**
  2.  * Gets a point to represent the Geometry. If the Geometry is a point, this is returned.
  3.  * Otherwise, the centroid is used.
  4.  *
  5.  * @param g the geometry to find a point for
  6.  * @return a point representing the Geometry
  7.  */
  8. private static Coordinate getPoint(Geometry g) {
  9.   if (g.getNumPoints() == 1) return g.getCoordinate();
  10.   return g.getCentroid().getCoordinate();
  11. }

代码示例来源：origin: geotools/geotools

  1. /**
  2.  * Gets a point to represent the Geometry. If the Geometry is a point, this is returned.
  3.  * Otherwise, the centroid is used.
  4.  *
  5.  * @param g the geometry to find a point for
  6.  * @return a point representing the Geometry
  7.  */
  8. private static Coordinate getRepresentativePoint(Geometry g) {
  9.   if (g.getNumPoints() == 1) return g.getCoordinate();
  10.   return g.getCentroid().getCoordinate();
  11. }

代码示例来源：origin: geotools/geotools

  1. LOGGER.finer("\tpoints: " + geom.getNumPoints());
  2. } else {
  3.   LOGGER.finer("got a null geometry back from gml parser");

代码示例来源：origin: geotools/geotools

  1. coordinates += g.getNumPoints();
  2. if (maxCoordinates > 0 && coordinates > maxCoordinates) {
  3.   throw new IllegalStateException(

代码示例来源：origin: geotools/geotools

  1. private static void addElemInfo(
  2.     List elemInfoList,
  3.     GeometryCollection geoms,
  4.     final int STARTING_OFFSET,
  5.     final int GTYPE) {
  6.   Geometry geom;
  7.   int offset = STARTING_OFFSET;
  8.   int LEN = D(GTYPE) + L(GTYPE);
  9.   for (int i = 0; i < geoms.getNumGeometries(); i++) {
  10.     geom = geoms.getGeometryN(i);
  11.     elemInfo(elemInfoList, geom, offset, GTYPE);
  12.     if (geom instanceof Polygon && isRectangle((Polygon) geom)) {
  13.       offset += (2 * LEN);
  14.     } else {
  15.       offset += (geom.getNumPoints() * LEN);
  16.     }
  17.   }
  18. }

代码示例来源：origin: geotools/geotools

  1. ensureNonNull("geometry", geometry);
  2. if ((minPoints <= 0) || (geometry.getNumPoints() < minPoints)) {
  3.   return geometry;

代码示例来源：origin: geotools/geotools

  1. public void testEncode() throws Exception {
  2.     Geometry geometry = GML3MockData.multiLineString();
  3.     GML3EncodingUtils.setID(geometry, "geometry");
  4.     Document dom = encode(geometry, GML.MultiLineString);
  5.     // print(dom);
  6.     assertEquals("geometry", getID(dom.getDocumentElement()));
  7.     assertEquals(2, dom.getElementsByTagNameNS(GML.NAMESPACE, "lineStringMember").getLength());
  8.     NodeList children =
  9.         dom.getElementsByTagNameNS(GML.NAMESPACE, GML.LineString.getLocalPart());
  10.     assertEquals(2, children.getLength());
  11.     assertEquals("geometry.1", getID(children.item(0)));
  12.     assertEquals("geometry.2", getID(children.item(1)));
  14.     checkDimension(dom, GML.MultiLineString.getLocalPart(), 2);
  15.     checkDimension(dom, GML.LineString.getLocalPart(), 2);
  16.     checkPosListOrdinates(dom, 2 * geometry.getGeometryN(0).getNumPoints());
  17.   }
  18. }

代码示例来源：origin: geotools/geotools

  1. Geometry g = (Geometry) value;
  2. if ((g == null) || (g.getNumPoints() == 0) || (g.getCoordinates().length == 0)) {
  3.   return;

代码示例来源：origin: geotools/geotools

  1. final Geometry original = JTS.toGeometry(shape);
  2. final Geometry reduced = JTS.removeCollinearVertices(original);
  3. assertEquals(10, original.getNumPoints());
  4. assertEquals(5, reduced.getNumPoints());
  5. final double DELTA = 1E-9;

代码示例来源：origin: geotools/geotools

  1. public void testSimplification() throws Exception {
  2.   SimpleFeatureSource fs = dataStore.getFeatureSource(tname("road"));
  3.   if (fs.getSupportedHints().contains(Hints.GEOMETRY_SIMPLIFICATION) == false) return;
  4.   SimpleFeatureCollection fColl = fs.getFeatures();
  5.   Geometry original = null;
  6.   try (SimpleFeatureIterator iterator = fColl.features()) {
  7.     if (iterator.hasNext()) {
  8.       original = (Geometry) iterator.next().getDefaultGeometry();
  9.     }
  10.   }
  11.   double width = original.getEnvelope().getEnvelopeInternal().getWidth();
  12.   Query query = new Query();
  13.   Hints hints = new Hints(Hints.GEOMETRY_SIMPLIFICATION, width / 2);
  14.   query.setHints(hints);
  15.   Geometry simplified = null;
  16.   fColl = fs.getFeatures(query);
  17.   try (SimpleFeatureIterator iterator = fColl.features()) {
  18.     if (iterator.hasNext()) simplified = (Geometry) iterator.next().getDefaultGeometry();
  19.   }
  20.   assertTrue(original.getNumPoints() >= simplified.getNumPoints());
  21. }

代码示例来源：origin: geotools/geotools

  1. public void testGeneralization() throws Exception {
  2.   SimpleFeatureSource fs = dataStore.getFeatureSource(tname("lake"));
  3.   if (fs.getSupportedHints().contains(Hints.GEOMETRY_GENERALIZATION) == false) return;
  4.   SimpleFeatureCollection fColl = fs.getFeatures();
  5.   Geometry original = null;
  6.   try (SimpleFeatureIterator iterator = fColl.features()) {
  7.     if (iterator.hasNext()) {
  8.       original = (Geometry) iterator.next().getDefaultGeometry();
  9.     }
  10.   }
  11.   double width = original.getEnvelope().getEnvelopeInternal().getWidth();
  12.   Query query = new Query();
  13.   Hints hints = new Hints(Hints.GEOMETRY_GENERALIZATION, width / 2);
  14.   query.setHints(hints);
  15.   Geometry generalized = null;
  16.   fColl = fs.getFeatures(query);
  17.   try (SimpleFeatureIterator iterator = fColl.features()) {
  18.     if (iterator.hasNext()) {
  19.       generalized = (Geometry) iterator.next().getDefaultGeometry();
  20.     }
  21.   }
  22.   assertTrue(original.getNumPoints() >= generalized.getNumPoints());
  23. }

代码示例来源：origin: geotools/geotools

  1. geometry = reader.read(WKT);
  2. assertNotNull("parsed perfect circle", geometry);
  3. assertEquals(11, geometry.getNumPoints());

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