com.esri.core.geometry.Point类的使用及代码示例

x33g5p2x  于2022-01-26 转载在 其他  
字(8.9k)|赞(0)|评价(0)|浏览(233)

本文整理了Java中com.esri.core.geometry.Point类的一些代码示例，展示了Point类的具体用法。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。Point类的具体详情如下：
包路径：com.esri.core.geometry.Point
类名称：Point

Point介绍

[英]A Point is a zero-dimensional object that represents a specific (X,Y) location in a two-dimensional XY-Plane. In case of Geographic Coordinate Systems, the X coordinate is the longitude and the Y is the latitude.
[中]点是零维对象，表示二维XY平面中的特定（X，Y）位置。对于地理坐标系，X坐标是经度，Y坐标是纬度。

代码示例

代码示例来源：origin: prestodb/presto

  1. private static Point getPolygonSansHolesCentroid(Polygon polygon)
  2. {
  3.   int pointCount = polygon.getPointCount();
  4.   double xSum = 0;
  5.   double ySum = 0;
  6.   double signedArea = 0;
  7.   for (int i = 0; i < pointCount; i++) {
  8.     Point current = polygon.getPoint(i);
  9.     Point next = polygon.getPoint((i + 1) % polygon.getPointCount());
  10.     double ladder = current.getX() * next.getY() - next.getX() * current.getY();
  11.     xSum += (current.getX() + next.getX()) * ladder;
  12.     ySum += (current.getY() + next.getY()) * ladder;
  13.     signedArea += ladder / 2;
  14.   }
  15.   return new Point(xSum / (signedArea * 6), ySum / (signedArea * 6));
  16. }

代码示例来源：origin: prestodb/presto

  1. @SqlNullable
  2. @Description("Returns TRUE if the LineString or Multi-LineString's start and end points are coincident")
  3. @ScalarFunction("ST_IsClosed")
  4. @SqlType(BOOLEAN)
  5. public static Boolean stIsClosed(@SqlType(GEOMETRY_TYPE_NAME) Slice input)
  6. {
  7.   OGCGeometry geometry = deserialize(input);
  8.   validateType("ST_IsClosed", geometry, EnumSet.of(LINE_STRING, MULTI_LINE_STRING));
  9.   MultiPath lines = (MultiPath) geometry.getEsriGeometry();
  10.   int pathCount = lines.getPathCount();
  11.   for (int i = 0; i < pathCount; i++) {
  12.     Point start = lines.getPoint(lines.getPathStart(i));
  13.     Point end = lines.getPoint(lines.getPathEnd(i) - 1);
  14.     if (!end.equals(start)) {
  15.       return false;
  16.     }
  17.   }
  18.   return true;
  19. }

代码示例来源：origin: prestodb/presto

  1. private static void writePoint(DynamicSliceOutput output, OGCGeometry geometry)
  2. {
  3.   Geometry esriGeometry = geometry.getEsriGeometry();
  4.   verify(esriGeometry instanceof Point, "geometry is expected to be an instance of Point");
  5.   Point point = (Point) esriGeometry;
  6.   verify(!point.hasAttribute(VertexDescription.Semantics.Z) &&
  7.           !point.hasAttribute(VertexDescription.Semantics.M) &&
  8.           !point.hasAttribute(VertexDescription.Semantics.ID),
  9.       "Only 2D points with no ID nor M attribute are supported");
  10.   output.appendByte(GeometrySerializationType.POINT.code());
  11.   if (!point.isEmpty()) {
  12.     output.appendDouble(point.getX());
  13.     output.appendDouble(point.getY());
  14.   }
  15.   else {
  16.     output.appendDouble(NaN);
  17.     output.appendDouble(NaN);
  18.   }
  19. }

代码示例来源：origin: prestodb/presto

  1. private static boolean withinDistance(GreatCircleDistanceToPoint distanceFunction, double maxDistance, Point point)
  2. {
  3.   return distanceFunction.distance(point.getY(), point.getX()) <= maxDistance;
  4. }

代码示例来源：origin: prestodb/presto

  1. private static OGCPoint readPoint(BasicSliceInput input)
  2. {
  3.   double x = input.readDouble();
  4.   double y = input.readDouble();
  5.   Point point;
  6.   if (isNaN(x) || isNaN(y)) {
  7.     point = new Point();
  8.   }
  9.   else {
  10.     point = new Point(x, y);
  11.   }
  12.   return new OGCPoint(point, null);
  13. }

代码示例来源：origin: Esri/geometry-api-java

  1. static void exportPointToWkt(int export_flags, Point point,
  2.     StringBuilder string) {
  3.   int precision = 17 - (7 & (export_flags >> 13));
  4.   boolean b_export_zs = point.hasAttribute(VertexDescription.Semantics.Z)
  5.       && (export_flags & WktExportFlags.wktExportStripZs) == 0;
  6.   boolean b_export_ms = point.hasAttribute(VertexDescription.Semantics.M)
  7.       && (export_flags & WktExportFlags.wktExportStripMs) == 0;
  8.   double x = NumberUtils.TheNaN;
  9.   double y = NumberUtils.TheNaN;
  10.   double z = NumberUtils.TheNaN;
  11.   double m = NumberUtils.TheNaN;
  12.   if (!point.isEmpty()) {
  13.     x = point.getX();
  14.     y = point.getY();
  15.     if (b_export_zs)
  16.       z = point.getZ();
  17.     if (b_export_ms)
  18.       m = point.getM();
  19.   }
  20.   if ((export_flags & WktExportFlags.wktExportMultiPoint) != 0) {
  21.     multiPointTaggedTextFromPoint_(precision, b_export_zs, b_export_ms,
  22.         x, y, z, m, string);
  23.   } else {
  24.     pointTaggedText_(precision, b_export_zs, b_export_ms, x, y, z, m,
  25.         string);
  26.   }
  27. }

代码示例来源：origin: apache/drill

  1. new com.esri.core.geometry.Point(result.x, result.y), sr).asBinary();
  2. } else {
  3.  com.esri.core.geometry.Geometry esriGeom = geomSrc.getEsriGeometry();
  4.  for (int i = 0; i < vertexGeom.getPointCount(); i++) {
  5.   com.esri.core.geometry.Point point = vertexGeom.getPoint(i);
  6.   result = transform.transform(new org.osgeo.proj4j.ProjCoordinate(point.getX(), point.getY()), result);
  7.   point.setXY(result.x, result.y);
  8.   vertexGeom.setPoint(i, point);

代码示例来源：origin: Esri/geometry-api-java

  1. /**
  2.  * Checks if this envelope contains (covers) the specified point.
  3.  * 
  4.  * @param p
  5.  *            The Point to be tested for coverage.
  6.  * @return TRUE if this envelope contains (covers) the specified point.
  7.  */
  8. public boolean contains(Point p) {
  9.   if (p.isEmpty())
  10.     return false;
  11.   return m_envelope.contains(p.getX(), p.getY());
  12. }

代码示例来源：origin: org.apache.sis.core/sis-feature

  1. /**
  2.  * If the given point is an implementation of this library, returns its coordinate.
  3.  * Otherwise returns {@code null}. If non-null, the returned array may have a length of 2 or 3.
  4.  */
  5. @Override
  6. final double[] tryGetCoordinate(final Object point) {
  7.   if (point instanceof Point) {
  8.     final Point pt = (Point) point;
  9.     final double z = pt.getZ();
  10.     final double[] coord;
  11.     if (Double.isNaN(z)) {
  12.       coord = new double[2];
  13.     } else {
  14.       coord = new double[3];
  15.       coord[2] = z;
  16.     }
  17.     coord[1] = pt.getY();
  18.     coord[0] = pt.getX();
  19.     return coord;
  20.   }
  21.   return null;
  22. }

代码示例来源：origin: Esri/geometry-api-java

  1. @Override
  2. public Point getPoint(int index) {
  3.   if (index < 0 || index >= m_pointCount)
  4.     throw new IndexOutOfBoundsException();
  5.   _verifyAllStreams();
  6.   Point outPoint = new Point();
  7.   outPoint.assignVertexDescription(m_description);
  8.   if (outPoint.isEmpty())
  9.     outPoint._setToDefault();
  10.   for (int attributeIndex = 0; attributeIndex < m_description
  11.       .getAttributeCount(); attributeIndex++) {
  12.     int semantics = m_description.getSemantics(attributeIndex);
  13.     for (int icomp = 0, ncomp = VertexDescription
  14.         .getComponentCount(semantics); icomp < ncomp; icomp++) {
  15.       double v = m_vertexAttributes[attributeIndex].readAsDbl(ncomp
  16.           * index + icomp);
  17.       outPoint.setAttribute(semantics, icomp, v);
  18.     }
  19.   }
  20.   return outPoint;
  21. }

代码示例来源：origin: Esri/geometry-api-java

  1. protected void _initPathStartPoint() {
  2.   _touch();
  3.   if (m_moveToPoint == null)
  4.     m_moveToPoint = new Point(m_description);
  5.   else
  6.     m_moveToPoint.assignVertexDescription(m_description);
  7. }

代码示例来源：origin: com.esri.geometry/esri-geometry-api

  1. static boolean mergeVertices(Point pt_1, Point pt_2, double w_1,
  2.     int rank_1, double w_2, int rank_2, Point pt_res, double[] w_res,
  3.     int[] rank_res) {
  4.   assert (!pt_1.isEmpty() && !pt_2.isEmpty());
  5.   boolean res = pt_1.equals(pt_2);
  6.   if (rank_1 > rank_2) {
  7.     pt_res = pt_1;
  8.     if (w_res != null) {
  9.       rank_res[0] = rank_1;
  10.       w_res[0] = w_1;
  11.     }
  12.     return res;
  13.   } else if (rank_2 > rank_1) {
  14.     pt_res = pt_2;
  15.     if (w_res != null) {
  16.       rank_res[0] = rank_1;
  17.       w_res[0] = w_1;
  18.     }
  19.     return res;
  20.   }
  21.   pt_res = pt_1;
  22.   Point2D pt2d = new Point2D();
  23.   mergeVertices2D(pt_1.getXY(), pt_2.getXY(), w_1, rank_1, w_2, rank_2,
  24.       pt2d, w_res, rank_res);
  25.   pt_res.setXY(pt2d);
  26.   return res;
  27. }

代码示例来源：origin: Qihoo360/Quicksql

  1. /** Returns the x-value of the first coordinate of {@code geom}. */
  2. public static Double ST_X(Geom geom) {
  3.  return geom.g() instanceof Point ? ((Point) geom.g()).getX() : null;
  4. }

代码示例来源：origin: Qihoo360/Quicksql

  1. /** Returns the y-value of the first coordinate of {@code geom}. */
  2. public static Double ST_Y(Geom geom) {
  3.  return geom.g() instanceof Point ? ((Point) geom.g()).getY() : null;
  4. }

代码示例来源：origin: Esri/geometry-api-java

  1. @Override
  2. public void setPoint(int index, Point src) {
  3.   if (index < 0 || index >= m_pointCount)
  4.     throw new IndexOutOfBoundsException();
  5.   Point point = src;
  6.   if (src.isEmpty())// can not assign an empty point to a multipoint
  7.             // vertex
  8.     throw new IllegalArgumentException();
  9.   _verifyAllStreams();// verify all allocated streams are of necessary
  10.             // size.
  11.   VertexDescription vdin = point.getDescription();
  12.   for (int attributeIndex = 0; attributeIndex < vdin.getAttributeCount(); attributeIndex++) {
  13.     int semantics = vdin.getSemantics(attributeIndex);
  14.     int ncomp = VertexDescription.getComponentCount(semantics);
  15.     for (int icomp = 0; icomp < ncomp; icomp++) {
  16.       double v = point.getAttributeAsDbl(semantics, icomp);
  17.       setAttribute(semantics, index, icomp, v);
  18.     }
  19.   }
  20. }

代码示例来源：origin: Esri/geometry-api-java

  1. static Point difference(Point point, Point point2, double tolerance) {
  2.   if (point.isEmpty())
  3.     return (Point) point.createInstance();
  4.   if (point2.isEmpty())
  5.     return point;
  6.   if (CrackAndCluster.non_empty_points_need_to_cluster(tolerance, point,
  7.       point2)) {
  8.     return (Point) point.createInstance();
  9.   }
  10.   return point;
  11. }

代码示例来源：origin: Esri/geometry-api-java

  1. @Override
  2.   public void replaceNaNs(int semantics, double value) {
  3.     addAttribute(semantics);
  4.     if (isEmpty())
  5.       return;
  7.     int ncomps = VertexDescription.getComponentCount(semantics);
  8.     for (int i = 0; i < ncomps; i++) {
  9.       double v = getAttributeAsDbl(semantics, i);
  10.       if (Double.isNaN(v))
  11.         setAttribute(semantics, i, value);
  12.     }
  13.   }
  14. }

代码示例来源：origin: Esri/geometry-api-java

  1. /**
  2.  * Constructs an envelope that covers the given point. The coordinates of
  3.  * the point are used to set the extent of the envelope.
  4.  * 
  5.  * @param point The point that the envelope covers.
  6.  */
  7. public Envelope(Point point) {
  8.   m_description = VertexDescriptionDesignerImpl.getDefaultDescriptor2D();
  9.   m_envelope.setEmpty();
  10.   if (point.isEmpty())
  11.     return;
  12.   _setFromPoint(point);
  13. }

代码示例来源：origin: com.esri.geometry/esri-geometry-api

  1. public void startPath(Point point) {
  2.   if (point.isEmpty())
  3.     throw new IllegalArgumentException();// throw new
  4.                         // IllegalArgumentException();
  5.   mergeVertexDescription(point.getDescription());
  6.   _initPathStartPoint();
  7.   point.copyTo(m_moveToPoint);
  8.   // TODO check MultiPathImpl.cpp comment
  9.   // "//the description will be merged later"
  10.   // assignVertexDescription(m_moveToPoint.getDescription());
  11.   m_bPathStarted = true;
  12. }

代码示例来源：origin: Esri/geometry-api-java

  1. public double Z() {
  2.   return point.getZ();
  3. }

内容来源于网络，如有侵权，请联系作者删除！

Point

相关文章

    查看更多

    热门标签

    更多
    JavaquerypythonNode开发语言requestUtil数据库Table后端算法LoggerMessageElementParser

    最新文章

    更多
    • 蜀ICP备13028337号-1 大数据知识库 https://www.saoniuhuo.com © All rights reserved
    • 本站内容来源互联网,如果侵犯您的权益请联系我们删除, 联系方式：448109455@qq.com