本文整理了Java中com.esri.core.geometry.Point.<init>()方法的一些代码示例，展示了Point.<init>()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.<init>()方法的具体详情如下：
包路径：com.esri.core.geometry.Point
类名称：Point
方法名：<init>

Point.<init>介绍

[英]Creates an empty 2D point.
[中]创建一个空的二维点。

代码示例

代码示例来源：origin: prestodb/presto

private static OGCPoint readPoint(BasicSliceInput input)
{
  double x = input.readDouble();
  double y = input.readDouble();
  Point point;
  if (isNaN(x) || isNaN(y)) {
    point = new Point();
  }
  else {
    point = new Point(x, y);
  }
  return new OGCPoint(point, null);
}

代码示例来源：origin: prestodb/presto

private static Point tileXYToLatitudeLongitude(int tileX, int tileY, int zoomLevel)
{
  long mapSize = mapSize(zoomLevel);
  double x = (clip(tileX * TILE_PIXELS, 0, mapSize) / mapSize) - 0.5;
  double y = 0.5 - (clip(tileY * TILE_PIXELS, 0, mapSize) / mapSize);
  double latitude = 90 - 360 * Math.atan(Math.exp(-y * 2 * Math.PI)) / Math.PI;
  double longitude = 360 * x;
  return new Point(longitude, latitude);
}

代码示例来源：origin: prestodb/presto

@Test
public void testSTEnvelopeAsPts()
{
  assertEnvelopeAsPts("MULTIPOINT (1 2, 2 4, 3 6, 4 8)", new Point(1, 2), new Point(4, 8));
  assertFunction("ST_EnvelopeAsPts(ST_GeometryFromText('LINESTRING EMPTY'))", new ArrayType(GEOMETRY), null);
  assertEnvelopeAsPts("LINESTRING (1 1, 2 2, 1 3)", new Point(1, 1), new Point(2, 3));
  assertEnvelopeAsPts("LINESTRING (8 4, 5 7)", new Point(5, 4), new Point(8, 7));
  assertEnvelopeAsPts("MULTILINESTRING ((1 1, 5 1), (2 4, 4 4))", new Point(1, 1), new Point(5, 4));
  assertEnvelopeAsPts("POLYGON ((1 1, 4 1, 1 4))", new Point(1, 1), new Point(4, 4));
  assertEnvelopeAsPts("MULTIPOLYGON (((1 1, 1 3, 3 3, 3 1)), ((0 0, 0 2, 2 2, 2 0)))", new Point(0, 0), new Point(3, 3));
  assertEnvelopeAsPts("GEOMETRYCOLLECTION (POINT (5 1), LINESTRING (3 4, 4 4))", new Point(3, 1), new Point(5, 4));
  assertEnvelopeAsPts("POINT (1 2)", new Point(1, 2), new Point(1, 2));
}

代码示例来源：origin: apache/drill

public void eval() {

  double lon = lonParam.value;
  double lat = latParam.value;

  com.esri.core.geometry.ogc.OGCPoint point = new com.esri.core.geometry.ogc.OGCPoint(
    new com.esri.core.geometry.Point(lon, lat), com.esri.core.geometry.SpatialReference.create(4326));

  java.nio.ByteBuffer pointBytes = point.asBinary();
  out.buffer = buffer;
  out.start = 0;
  out.end = pointBytes.remaining();
  buffer.setBytes(0, pointBytes);
 }
}

代码示例来源：origin: prestodb/presto

private List<OGCGeometry> makeGeometries()
{
  ImmutableList.Builder<OGCGeometry> geometries = ImmutableList.builder();
  for (int i = 0; i < 10; i++) {
    for (int j = 0; j < 10; j++) {
      geometries.add(new OGCPoint(new Point(-10 + i, -10 + j), null));
    }
  }
  for (int i = 0; i < 5; i++) {
    for (int j = 0; j < 5; j++) {
      geometries.add(new OGCPoint(new Point(-10 + 2 * i, 2 * j), null));
    }
  }
  for (int i = 0; i < 4; i++) {
    for (int j = 0; j < 4; j++) {
      geometries.add(new OGCPoint(new Point(2.5 * i, -10 + 2.5 * j), null));
    }
  }
  for (int i = 0; i < 3; i++) {
    for (int j = 0; j < 3; j++) {
      geometries.add(new OGCPoint(new Point(5 * i, 5 * j), null));
    }
  }
  return geometries.build();
}

代码示例来源：origin: prestodb/presto

corners.add(new Point(envelope.getXMin(), envelope.getYMin()));
corners.add(new Point(envelope.getXMin(), envelope.getYMax()));
corners.add(new Point(envelope.getXMax(), envelope.getYMin()));
corners.add(new Point(envelope.getXMax(), envelope.getYMax()));

代码示例来源：origin: prestodb/presto

private static Point computePointsCentroid(MultiVertexGeometry multiVertex)
{
  double xSum = 0;
  double ySum = 0;
  for (int i = 0; i < multiVertex.getPointCount(); i++) {
    Point point = multiVertex.getPoint(i);
    xSum += point.getX();
    ySum += point.getY();
  }
  return new Point(xSum / multiVertex.getPointCount(), ySum / multiVertex.getPointCount());
}

代码示例来源：origin: prestodb/presto

@Description("Returns the Geometry value that represents the point set intersection of two Geometries")
@ScalarFunction("ST_Intersection")
@SqlType(GEOMETRY_TYPE_NAME)
public static Slice stIntersection(@SqlType(GEOMETRY_TYPE_NAME) Slice left, @SqlType(GEOMETRY_TYPE_NAME) Slice right)
{
  if (deserializeType(left) == GeometrySerializationType.ENVELOPE && deserializeType(right) == GeometrySerializationType.ENVELOPE) {
    Envelope leftEnvelope = deserializeEnvelope(left);
    Envelope rightEnvelope = deserializeEnvelope(right);
    // Envelope#intersect updates leftEnvelope to the intersection of the two envelopes
    if (!leftEnvelope.intersect(rightEnvelope)) {
      return EMPTY_POLYGON;
    }
    Envelope intersection = leftEnvelope;
    if (intersection.getXMin() == intersection.getXMax()) {
      if (intersection.getYMin() == intersection.getYMax()) {
        return serialize(createFromEsriGeometry(new Point(intersection.getXMin(), intersection.getXMax()), null));
      }
      return serialize(createFromEsriGeometry(new Polyline(new Point(intersection.getXMin(), intersection.getYMin()), new Point(intersection.getXMin(), intersection.getYMax())), null));
    }
    if (intersection.getYMin() == intersection.getYMax()) {
      return serialize(createFromEsriGeometry(new Polyline(new Point(intersection.getXMin(), intersection.getYMin()), new Point(intersection.getXMax(), intersection.getYMin())), null));
    }
    return serialize(intersection);
  }
  OGCGeometry leftGeometry = deserialize(left);
  OGCGeometry rightGeometry = deserialize(right);
  verifySameSpatialReference(leftGeometry, rightGeometry);
  return serialize(leftGeometry.intersection(rightGeometry));
}

代码示例来源：origin: prestodb/presto

@Description("Returns a Geometry type Point object with the given coordinate values")
@ScalarFunction("ST_Point")
@SqlType(GEOMETRY_TYPE_NAME)
public static Slice stPoint(@SqlType(DOUBLE) double x, @SqlType(DOUBLE) double y)
{
  OGCGeometry geometry = createFromEsriGeometry(new Point(x, y), null);
  return serialize(geometry);
}

代码示例来源：origin: prestodb/presto

private static Point computeMultiPolygonCentroid(OGCMultiPolygon multiPolygon)
{
  double xSum = 0;
  double ySum = 0;
  double weightSum = 0;
  for (int i = 0; i < multiPolygon.numGeometries(); i++) {
    Point centroid = computePolygonCentroid((Polygon) multiPolygon.geometryN(i).getEsriGeometry());
    Polygon polygon = (Polygon) multiPolygon.geometryN(i).getEsriGeometry();
    double weight = polygon.calculateArea2D();
    weightSum += weight;
    xSum += centroid.getX() * weight;
    ySum += centroid.getY() * weight;
  }
  return new Point(xSum / weightSum, ySum / weightSum);
}

代码示例来源：origin: prestodb/presto

@SqlNullable
@Description("Returns the lower left and upper right corners of bounding rectangular polygon of a Geometry")
@ScalarFunction("ST_EnvelopeAsPts")
@SqlType("array(" + GEOMETRY_TYPE_NAME + ")")
public static Block stEnvelopeAsPts(@SqlType(GEOMETRY_TYPE_NAME) Slice input)
{
  Envelope envelope = deserializeEnvelope(input);
  if (envelope == null) {
    return null;
  }
  BlockBuilder blockBuilder = GEOMETRY.createBlockBuilder(null, 2);
  Point lowerLeftCorner = new Point(envelope.getXMin(), envelope.getYMin());
  Point upperRightCorner = new Point(envelope.getXMax(), envelope.getYMax());
  GEOMETRY.writeSlice(blockBuilder, serialize(createFromEsriGeometry(lowerLeftCorner, null, false)));
  GEOMETRY.writeSlice(blockBuilder, serialize(createFromEsriGeometry(upperRightCorner, null, false)));
  return blockBuilder.build();
}

代码示例来源：origin: prestodb/presto

private static Point computeLineCentroid(Polyline polyline)
{
  double xSum = 0;
  double ySum = 0;
  double weightSum = 0;
  for (int i = 0; i < polyline.getPathCount(); i++) {
    Point startPoint = polyline.getPoint(polyline.getPathStart(i));
    Point endPoint = polyline.getPoint(polyline.getPathEnd(i) - 1);
    double dx = endPoint.getX() - startPoint.getX();
    double dy = endPoint.getY() - startPoint.getY();
    double length = sqrt(dx * dx + dy * dy);
    weightSum += length;
    xSum += (startPoint.getX() + endPoint.getX()) * length / 2;
    ySum += (startPoint.getY() + endPoint.getY()) * length / 2;
  }
  return new Point(xSum / weightSum, ySum / weightSum);
}

代码示例来源：origin: prestodb/presto

private static Point computePolygonCentroid(Polygon polygon)
{
  int pathCount = polygon.getPathCount();
  if (pathCount == 1) {
    return getPolygonSansHolesCentroid(polygon);
  }
  double xSum = 0;
  double ySum = 0;
  double areaSum = 0;
  for (int i = 0; i < pathCount; i++) {
    int startIndex = polygon.getPathStart(i);
    int endIndex = polygon.getPathEnd(i);
    Polygon sansHoles = getSubPolygon(polygon, startIndex, endIndex);
    Point centroid = getPolygonSansHolesCentroid(sansHoles);
    double area = sansHoles.calculateArea2D();
    xSum += centroid.getX() * area;
    ySum += centroid.getY() * area;
    areaSum += area;
  }
  return new Point(xSum / areaSum, ySum / areaSum);
}

代码示例来源：origin: prestodb/presto

if (!multiType && ((MultiPoint) geometry).getPointCount() <= 1) {
  if (geometry.isEmpty()) {
    return new OGCPoint(new Point(), null);

代码示例来源：origin: prestodb/presto

private static Point getPolygonSansHolesCentroid(Polygon polygon)
{
  int pointCount = polygon.getPointCount();
  double xSum = 0;
  double ySum = 0;
  double signedArea = 0;
  for (int i = 0; i < pointCount; i++) {
    Point current = polygon.getPoint(i);
    Point next = polygon.getPoint((i + 1) % polygon.getPointCount());
    double ladder = current.getX() * next.getY() - next.getX() * current.getY();
    xSum += (current.getX() + next.getX()) * ladder;
    ySum += (current.getY() + next.getY()) * ladder;
    signedArea += ladder / 2;
  }
  return new Point(xSum / (signedArea * 6), ySum / (signedArea * 6));
}

代码示例来源：origin: apache/drill

new com.esri.core.geometry.Point(result.x, result.y), sr).asBinary();
} else {
 com.esri.core.geometry.Geometry esriGeom = geomSrc.getEsriGeometry();

代码示例来源：origin: prestodb/presto

return serialize(createFromEsriGeometry(new Point(), geometry.getEsriSpatialReference()));

代码示例来源：origin: Esri/geometry-api-java

/**
 * Returns the envelope's upper right corner point.
 * 
 * @return Returns the upper right corner point.
 */
public Point getUpperRight() {
  return new Point(m_envelope.getUpperRight());
}

代码示例来源：origin: Esri/geometry-api-java

/**
 * Returns the envelope's lower right corner point.
 * 
 * @return Returns the lower right corner point.
 */
public Point getLowerRight() {
  return new Point(m_envelope.getLowerRight());
}

代码示例来源：origin: Esri/geometry-api-java

@Override
public OGCGeometry reduceFromMulti() {
  int n = numGeometries();
  if (n == 0) {
    return new OGCPoint(new Point(multiPoint.getDescription()), esriSR);
  }
  
  if (n == 1) {
    return geometryN(0);
  }
  
  return this;
}