本文整理了Java中org.locationtech.jts.geom.Geometry.getUserData()方法的一些代码示例，展示了Geometry.getUserData()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.getUserData()方法的具体详情如下：
包路径：org.locationtech.jts.geom.Geometry
类名称：Geometry
方法名：getUserData

Geometry.getUserData介绍

[英]Gets the user data object for this geometry, if any.
[中]获取此几何体的用户数据对象（如果有）。

代码示例

代码示例来源：origin: geoserver/geoserver

CoordinateReferenceSystem crs = (CoordinateReferenceSystem) geometry.getUserData();

代码示例来源：origin: geotools/geotools

/** @return The coordinate reference system of the feature, or null if not set. */
public CoordinateReferenceSystem getCRS(Object geom) {
  if (crs != null) {
    return crs;
  } else if (geom != null && geom instanceof Geometry) {
    Object userData = ((Geometry) geom).getUserData();
    if (userData != null && userData instanceof CoordinateReferenceSystem) {
      return (CoordinateReferenceSystem) userData;
    }
  }
  return null;
}

代码示例来源：origin: geotools/geotools

public Object getUserData() {
  return geometry.getUserData();
}

代码示例来源：origin: geotools/geotools

@SuppressWarnings("rawtypes")
String getMetadata(Geometry g, String metadata) {
  if (g.getUserData() instanceof Map) {
    Map userData = (Map) g.getUserData();
    return (String) userData.get(metadata);
  }
  return null;
}

代码示例来源：origin: geotools/geotools

/**
 * Determines the crs of the geometry by checking {@link Geometry#getUserData()}.
 *
 * <p>This method returns <code>null</code> when no crs can be found.
 */
public static CoordinateReferenceSystem getCRS(Geometry g) {
  if (g.getUserData() == null) {
    return null;
  }
  if (g.getUserData() instanceof CoordinateReferenceSystem) {
    return (CoordinateReferenceSystem) g.getUserData();
  }
  if (g.getUserData() instanceof Map) {
    Map userData = (Map) g.getUserData();
    return (CoordinateReferenceSystem) userData.get(CoordinateReferenceSystem.class);
  }
  return null;
}

代码示例来源：origin: geotools/geotools

@SuppressWarnings({"unchecked", "rawtypes"})
void setMetadata(Geometry g, String metadata, String value) {
  if (g.getUserData() == null) {
    g.setUserData(new HashMap());
  }
  if (g.getUserData() instanceof Map) {
    ((Map) g.getUserData()).put(metadata, value);
  }
}

代码示例来源：origin: geotools/geotools

public Object getProperty(Object object, QName name) throws Exception {
    if ("srsName".equals(name.getLocalPart())) {
      Geometry geometry = (Geometry) object;

      if (geometry.getUserData() instanceof CoordinateReferenceSystem) {
        return GML2EncodingUtils.crs((CoordinateReferenceSystem) geometry.getUserData());
      }
    }

    return null;
  }
}

代码示例来源：origin: geotools/geotools

private void initCRS(Geometry g) {
    // see if we have a native CRS in the mix
    if (crs == null && g.getUserData() instanceof CoordinateReferenceSystem) {
      crs = (CoordinateReferenceSystem) g.getUserData();
    }
    if (srid == -1 && g.getSRID() > 0) {
      srid = g.getSRID();
    }
  }
}

代码示例来源：origin: geotools/geotools

/** Get axisLabels for the geometry if set in app-schema mapping configuration. */
public static String getAxisLabels(Geometry g) {
  Object userData = g.getUserData();
  if (userData != null && userData instanceof Map) {
    Object attributes = ((Map) userData).get(Attributes.class);
    if (attributes != null && attributes instanceof Map) {
      Name attribute = new NameImpl("axisLabels");
      Object axisLabels = ((Map) attributes).get(attribute);
      if (axisLabels != null) {
        return axisLabels.toString();
      }
    }
  }
  return null;
}

代码示例来源：origin: geotools/geotools

/** Get uomLabels for the geometry if set in app-schema mapping configuration. */
public static String getUomLabels(Geometry g) {
  Object userData = g.getUserData();
  if (userData != null && userData instanceof Map) {
    Object attributes = ((Map) userData).get(Attributes.class);
    if (attributes != null && attributes instanceof Map) {
      Name attribute = new NameImpl("uomLabels");
      Object uomLabels = ((Map) attributes).get(attribute);
      if (uomLabels != null) {
        return uomLabels.toString();
      }
    }
  }
  return null;
}

代码示例来源：origin: geotools/geotools

@Override
public Envelope decodeGeometryEnvelope(ResultSet rs, int column, Connection cx)
    throws SQLException, IOException {
  String s = rs.getString(column);
  Geometry g = decodeGeometry(s, null);
  if (g == null) {
    return null;
  }
  return new ReferencedEnvelope(
      g.getEnvelopeInternal(), (CoordinateReferenceSystem) g.getUserData());
}

代码示例来源：origin: geotools/geotools

@Override
public Object visit(Literal expression, Object extraData) {
  Object value = expression.getValue();
  if (value instanceof Geometry) {
    Geometry g = (Geometry) value;
    if (g.getUserData() instanceof CoordinateReferenceSystem) {
      return g.getUserData();
    } else if (g.getSRID() > 0) {
      try {
        return CRS.decode("EPSG:" + g.getSRID());
      } catch (Exception e) {
        return null;
      }
    }
  }
  return null;
}

代码示例来源：origin: geotools/geotools

private CoordinateReferenceSystem evaluateCRS(SimpleFeature originalFeature) {
  SimpleFeatureType originalSchema = originalFeature.getFeatureType();
  CoordinateReferenceSystem computedCRS = evaluateCRS(originalSchema);
  if (computedCRS == null) {
    // all right, let's try the sample feature then
    Geometry g = expression.evaluate(originalFeature, Geometry.class);
    if (g != null && g.getUserData() instanceof CoordinateReferenceSystem) {
      computedCRS = (CoordinateReferenceSystem) g.getUserData();
    } else {
      try {
        computedCRS = CRS.decode("EPSG:" + g.getSRID());
      } catch (Exception e) {
        return null;
      }
    }
  }
  return computedCRS;
}

代码示例来源：origin: geotools/geotools

public Object visit(Literal expression, Object extraData) {
    if (!(expression.getValue() instanceof Geometry)) return super.visit(expression, extraData);

    // check if reprojection is needed
    Geometry geom = (Geometry) expression.getValue();
    if (geom.getUserData() != null && geom.getUserData() instanceof CoordinateReferenceSystem)
      return super.visit(expression, extraData);

    // clone the geometry and assign the new crs
    Geometry clone = geom.getFactory().createGeometry(geom);
    clone.setUserData(defaultCrs);

    // clone
    return ff.literal(clone);
  }
}

代码示例来源：origin: geotools/geotools

@Test
public void setCRSCode() throws Exception {
  Function f = ff.function("setCRS", ff.literal(g), ff.literal("EPSG:4326"));
  Geometry sg = (Geometry) f.evaluate(null);
  assertEquals(CRS.decode("EPSG:4326"), sg.getUserData());
}

代码示例来源：origin: geotools/geotools

@Test
  public void testPreserveOriginalSRS() throws NoSuchAuthorityCodeException, FactoryException {
    String srs = "AUTO:42004,9001,0,33";
    CoordinateReferenceSystem crs = CRS.decode(srs);
    BBOX bbox = ff.bbox(ff.property(""), 0, 1000, 2000, 3000, srs);
    Geometry geom = bbox.getExpression2().evaluate(null, Geometry.class);
    assertEquals(crs, geom.getUserData());
    assertEquals(srs, bbox.getSRS());
  }
}

代码示例来源：origin: geotools/geotools

@Test
public void force3DCRS2DEnvelope() throws Exception {
  CoordinateReferenceSystem crs = CRS.decode("EPSG:4939", true);
  CoordinateReferenceSystem hcrs = CRS.getHorizontalCRS(crs);
  BBOX bbox = ff.bbox("the_geom", -180, -90, 180, 90, null);
  DefaultCRSFilterVisitor visitor = new DefaultCRSFilterVisitor(ff, crs);
  BBOX filtered = (BBOX) bbox.accept(visitor, null);
  Literal box = (Literal) filtered.getExpression2();
  Geometry g = (Geometry) box.evaluate(null);
  assertEquals(hcrs, g.getUserData());
}

代码示例来源：origin: geotools/geotools

@Test
public void setCRSObject() {
  Function f = ff.function("setCRS", ff.literal(g), ff.literal(DefaultGeographicCRS.WGS84));
  Geometry sg = (Geometry) f.evaluate(null);
  assertEquals(DefaultGeographicCRS.WGS84, sg.getUserData());
}

代码示例来源：origin: geotools/geotools

@Test
  public void force3DCRS3DEnvelope() throws Exception {
    CoordinateReferenceSystem crs = CRS.decode("EPSG:4939", true);
    CoordinateReferenceSystem hcrs = CRS.getHorizontalCRS(crs);
    BBOX bbox =
        ff.bbox(
            ff.property("the_geom"),
            new ReferencedEnvelope3D(-180, 180, -90, 90, 0, 100, null));
    DefaultCRSFilterVisitor visitor = new DefaultCRSFilterVisitor(ff, crs);
    BBOX filtered = (BBOX) bbox.accept(visitor, null);
    Literal box = (Literal) filtered.getExpression2();
    Geometry g = (Geometry) box.evaluate(null);
    assertEquals(crs, g.getUserData());
  }
}

代码示例来源：origin: geotools/geotools

@Test
  public void setCRSWkt() {
    Function f =
        ff.function(
            "setCRS", ff.literal(g), ff.literal(DefaultGeographicCRS.WGS84.toWKT()));
    Geometry sg = (Geometry) f.evaluate(null);
    assertTrue(CRS.equalsIgnoreMetadata(DefaultGeographicCRS.WGS84, sg.getUserData()));
  }
}