com.esri.core.geometry.Geometry类的使用及代码示例

x33g5p2x  于2022-01-20 转载在 其他  
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本文整理了Java中com.esri.core.geometry.Geometry类的一些代码示例，展示了Geometry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。Geometry类的具体详情如下：
包路径：com.esri.core.geometry.Geometry
类名称：Geometry

Geometry介绍

[英]Common properties and methods shared by all geometric objects. Geometries are objects that define a spatial location and and associated geometric shape.
[中]所有几何对象共享的通用特性和方法。几何图形是定义空间位置和关联几何图形的对象。

代码示例

代码示例来源：origin: prestodb/presto

public static Envelope getEnvelope(OGCGeometry ogcGeometry)
{
  GeometryCursor cursor = ogcGeometry.getEsriGeometryCursor();
  Envelope overallEnvelope = new Envelope();
  while (true) {
    Geometry geometry = cursor.next();
    if (geometry == null) {
      return overallEnvelope;
    }
    Envelope envelope = new Envelope();
    geometry.queryEnvelope(envelope);
    overallEnvelope.merge(envelope);
  }
}

代码示例来源：origin: prestodb/presto

private static OGCGeometry createFromEsriGeometry(Geometry geometry, boolean multiType)
  Geometry.Type type = geometry.getType();
  switch (type) {
    case Polygon: {
        if (geometry.isEmpty()) {
          return new OGCPoint(new Point(), null);

代码示例来源：origin: prestodb/presto

@Description("Returns the 2D Euclidean area of a geometry")
@ScalarFunction("ST_Area")
@SqlType(DOUBLE)
public static double stArea(@SqlType(GEOMETRY_TYPE_NAME) Slice input)
{
  OGCGeometry geometry = deserialize(input);
  // The Esri geometry library does not support area for geometry collections. We compute the area
  // of collections by summing the area of the individual components.
  GeometryType type = GeometryType.getForEsriGeometryType(geometry.geometryType());
  if (type == GeometryType.GEOMETRY_COLLECTION) {
    double area = 0.0;
    GeometryCursor cursor = geometry.getEsriGeometryCursor();
    while (true) {
      com.esri.core.geometry.Geometry esriGeometry = cursor.next();
      if (esriGeometry == null) {
        return area;
      }
      area += esriGeometry.calculateArea2D();
    }
  }
  return geometry.getEsriGeometry().calculateArea2D();
}

代码示例来源：origin: Esri/geometry-api-java

static boolean hasNonEmptyBoundary(Geometry geom,
    ProgressTracker progress_tracker) {
  if (geom.isEmpty())
    return false;
  Geometry.Type gt = geom.getType();
  if (gt == Geometry.Type.Polygon) {
    if (geom.calculateArea2D() == 0)
      return false;
    return true;
  } else if (gt == Geometry.Type.Polyline) {
    boolean[] b = new boolean[1];
    b[0] = false;
    calculatePolylineBoundary_(geom._getImpl(), progress_tracker, true,
        b);
    return b[0];
  } else if (gt == Geometry.Type.Envelope) {
    return true;
  } else if (Geometry.isSegment(gt.value())) {
    if (!((Segment) geom).isClosed()) {
      return true;
    }
    return false;
  } else if (Geometry.isPoint(gt.value())) {
    return false;
  }
  return false;
}

代码示例来源：origin: Esri/geometry-api-java

private Geometry Generalize(Geometry geom) {
  Geometry.Type gt = geom.getType();
  if (Geometry.isPoint(gt.value()))
    return geom;
  if (gt == Geometry.Type.Envelope) {
    Polygon poly = new Polygon(geom.getDescription());
    poly.addEnvelope((Envelope) geom, false);
    return Generalize(poly);
  }
  if (geom.isEmpty())
    return geom;
  MultiPath mp = (MultiPath) geom;
  MultiPath dstmp = (MultiPath) geom.createInstance();
  Line line = new Line();
  for (int ipath = 0, npath = mp.getPathCount(); ipath < npath; ipath++) {
    GeneralizePath((MultiPathImpl) mp._getImpl(), ipath,
        (MultiPathImpl) dstmp._getImpl(), line);
  }
  return dstmp;
}

代码示例来源：origin: Esri/geometry-api-java

private Geometry bufferEnvelope_() {
  Polygon polygon = new Polygon(m_geometry.getDescription());
  if (m_distance <= 0) {
    if (m_distance == 0)
      polygon.addEnvelope((Envelope) (m_geometry), false);
    else {
      Envelope env = new Envelope();
      m_geometry.queryEnvelope(env);
      env.inflate(m_distance, m_distance);
      polygon.addEnvelope(env, false);
    }
    return polygon;// nothing is easier than negative buffer on the
            // envelope.
  }
  polygon.addEnvelope((Envelope) (m_geometry), false);
  m_geometry = polygon;
  return bufferConvexPath_(polygon, 0);
}

代码示例来源：origin: Esri/geometry-api-java

Geometry normalizeIntersectionOutput(Geometry geom, int GT_1, int GT_2) {
  if (GT_1 == Geometry.GeometryType.Point
      || GT_2 == Geometry.GeometryType.Point) {
    assert (geom.getType().value() == Geometry.GeometryType.Point);
  }
  if (GT_1 == Geometry.GeometryType.MultiPoint) {
    if (geom.getType().value() == Geometry.GeometryType.Point) {
      MultiPoint mp = new MultiPoint(geom.getDescription());
      if (!geom.isEmpty())
        mp.add((Point) geom);
      return mp;
    }
  }
  return geom;
}

代码示例来源：origin: Esri/geometry-api-java

int addGeometry(Geometry geometry) {
  Geometry.Type gt = geometry.getType();
  if (Geometry.isMultiPath(gt.value()))
    return addMultiPath_((MultiPath) geometry);
  if (gt == Geometry.Type.MultiPoint)
    return addMultiPoint_((MultiPoint) geometry);
  throw GeometryException.GeometryInternalError();
}

代码示例来源：origin: Esri/geometry-api-java

static Geometry _denormalizeGeometry(Geometry geom, Geometry geomA,
    Geometry geomB) {
  Geometry.Type gtA = geomA.getType();
  Geometry.Type gtB = geomB.getType();
  Geometry.Type gt = geom.getType();
  if (gt == Geometry.Type.MultiPoint) {
    if (gtA == Geometry.Type.Point || gtB == Geometry.Type.Point) {
      MultiPoint mp = (MultiPoint) geom;
      if (mp.getPointCount() <= 1) {
        Point pt = new Point(geom.getDescription());
        if (!mp.isEmpty())
          mp.getPointByVal(0, pt);
        return (Geometry) pt;
      }
    }
  }
  return geom;
}

代码示例来源：origin: prestodb/presto

@Description("Converts a Geometry object to a SphericalGeography object")
@ScalarFunction("to_spherical_geography")
@SqlType(SPHERICAL_GEOGRAPHY_TYPE_NAME)
public static Slice toSphericalGeography(@SqlType(GEOMETRY_TYPE_NAME) Slice input)
{
  // "every point in input is in range" <=> "the envelope of input is in range"
  Envelope envelope = deserializeEnvelope(input);
  if (envelope != null) {
    checkLatitude(envelope.getYMin());
    checkLatitude(envelope.getYMax());
    checkLongitude(envelope.getXMin());
    checkLongitude(envelope.getXMax());
  }
  OGCGeometry geometry = deserialize(input);
  if (geometry.is3D()) {
    throw new PrestoException(INVALID_FUNCTION_ARGUMENT, "Cannot convert 3D geometry to a spherical geography");
  }
  GeometryCursor cursor = geometry.getEsriGeometryCursor();
  while (true) {
    com.esri.core.geometry.Geometry subGeometry = cursor.next();
    if (subGeometry == null) {
      break;
    }
    if (!GEOMETRY_TYPES_FOR_SPHERICAL_GEOGRAPHY.contains(subGeometry.getType())) {
      throw new PrestoException(INVALID_FUNCTION_ARGUMENT, "Cannot convert geometry of this type to spherical geography: " + subGeometry.getType());
    }
  }
  return input;
}

代码示例来源：origin: prestodb/presto

@Description("Returns the length of a LineString or Multi-LineString using Euclidean measurement on a 2D plane (based on spatial ref) in projected units")
@ScalarFunction("ST_Length")
@SqlType(DOUBLE)
public static double stLength(@SqlType(GEOMETRY_TYPE_NAME) Slice input)
{
  OGCGeometry geometry = deserialize(input);
  validateType("ST_Length", geometry, EnumSet.of(LINE_STRING, MULTI_LINE_STRING));
  return geometry.getEsriGeometry().calculateLength2D();
}

代码示例来源：origin: Esri/geometry-api-java

@Override
public void copyTo(Geometry dst) {
  if (getType() != dst.getType())
    throw new IllegalArgumentException();
  m_impl.copyTo((Geometry) dst._getImpl());
}

代码示例来源：origin: Esri/geometry-api-java

private static int get_vertex_count_(Geometry geom) {
  int gt = geom.getType().value();
  if (Geometry.isMultiVertex(gt)) {
    return ((MultiVertexGeometry) geom).getPointCount();
  } else if (gt == Geometry.GeometryType.Point) {
    return 1;
  } else if (gt == Geometry.GeometryType.Envelope) {
    return 4;
  } else if (Geometry.isSegment(gt)) {
    return 2;
  } else {
    throw GeometryException.GeometryInternalError();
  }
}

代码示例来源：origin: Esri/geometry-api-java

/**
 * A shortcut for getDescription().hasAttribute()
 * @param semantics The VertexDescription.Semantics to check.
 * @return Return true if the attribute is present.
 */
public boolean hasAttribute(int semantics) {
  return getDescription().hasAttribute(semantics);
}

代码示例来源：origin: Esri/geometry-api-java

static void testPointsOnLine2D(Geometry line, Point2D[] input_points,
    int count, double tolerance, PolygonUtils.PiPResult[] test_results) {
  Geometry.Type gt = line.getType();
  if (gt == Geometry.Type.Polyline)
    testPointsOnPolyline2D_((Polyline) line, input_points, count,
        tolerance, test_results);
  else if (Geometry.isSegment(gt.value())) {
    testPointsOnSegment_((Segment) line, input_points, count,
        tolerance, test_results);
  } else
    throw new GeometryException("Invalid call.");
}

代码示例来源：origin: prestodb/presto

public static int getPointCount(OGCGeometry ogcGeometry)
{
  GeometryCursor cursor = ogcGeometry.getEsriGeometryCursor();
  int points = 0;
  while (true) {
    com.esri.core.geometry.Geometry geometry = cursor.next();
    if (geometry == null) {
      return points;
    }
    if (geometry.isEmpty()) {
      continue;
    }
    if (geometry instanceof Point) {
      points++;
    }
    else {
      points += ((MultiVertexGeometry) geometry).getPointCount();
    }
  }
}

代码示例来源：origin: Esri/geometry-api-java

double calculate(/* const */Geometry geometryA, /* const */
  Geometry geometryB) {
    if (geometryA.isEmpty() || geometryB.isEmpty())
      return NumberUtils.TheNaN;
    geometryA.queryEnvelope2D(m_env2DgeometryA);
    geometryB.queryEnvelope2D(m_env2DgeometryB);
    return executeBruteForce_(geometryA, geometryB);
  }
}

代码示例来源：origin: Esri/geometry-api-java

static Geometry execute(Geometry inputGeometry, double distance,
    OperatorOffset.JoinType joins, double miterLimit, double tolerance,
    ProgressTracker progressTracker) {
  if (inputGeometry == null)
    throw new IllegalArgumentException();
  if (inputGeometry.getDimension() < 1)// can offset Polygons and
                      // Polylines only
    throw new IllegalArgumentException();
  if (distance == 0 || inputGeometry.isEmpty())
    return inputGeometry;
  ConstructOffset offset = new ConstructOffset(progressTracker);
  offset.m_inputGeometry = inputGeometry;
  offset.m_distance = distance;
  offset.m_tolerance = tolerance;
  offset.m_joins = joins;
  offset.m_miterLimit = miterLimit;
  return offset._ConstructOffset();
}

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

static boolean hasNonEmptyBoundary(Geometry geom,
    ProgressTracker progress_tracker) {
  if (geom.isEmpty())
    return false;
  Geometry.Type gt = geom.getType();
  if (gt == Geometry.Type.Polygon) {
    if (geom.calculateArea2D() == 0)
      return false;
    return true;
  } else if (gt == Geometry.Type.Polyline) {
    boolean[] b = new boolean[1];
    b[0] = false;
    calculatePolylineBoundary_(geom._getImpl(), progress_tracker, true,
        b);
    return b[0];
  } else if (gt == Geometry.Type.Envelope) {
    return true;
  } else if (Geometry.isSegment(gt.value())) {
    if (!((Segment) geom).isClosed()) {
      return true;
    }
    return false;
  } else if (Geometry.isPoint(gt.value())) {
    return false;
  }
  return false;
}

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

private Geometry Generalize(Geometry geom) {
  Geometry.Type gt = geom.getType();
  if (Geometry.isPoint(gt.value()))
    return geom;
  if (gt == Geometry.Type.Envelope) {
    Polygon poly = new Polygon(geom.getDescription());
    poly.addEnvelope((Envelope) geom, false);
    return Generalize(poly);
  }
  if (geom.isEmpty())
    return geom;
  MultiPath mp = (MultiPath) geom;
  MultiPath dstmp = (MultiPath) geom.createInstance();
  Line line = new Line();
  for (int ipath = 0, npath = mp.getPathCount(); ipath < npath; ipath++) {
    GeneralizePath((MultiPathImpl) mp._getImpl(), ipath,
        (MultiPathImpl) dstmp._getImpl(), line);
  }
  return dstmp;
}

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