org.locationtech.jts.geom.Geometry.getUserData()方法的使用及代码示例

x33g5p2x  于2022-01-19 转载在 其他  
字(7.7k)|赞(0)|评价(0)|浏览(262)

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

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

代码示例来源：origin: geotools/geotools

  1. /** @return The coordinate reference system of the feature, or null if not set. */
  2. public CoordinateReferenceSystem getCRS(Object geom) {
  3.   if (crs != null) {
  4.     return crs;
  5.   } else if (geom != null && geom instanceof Geometry) {
  6.     Object userData = ((Geometry) geom).getUserData();
  7.     if (userData != null && userData instanceof CoordinateReferenceSystem) {
  8.       return (CoordinateReferenceSystem) userData;
  9.     }
  10.   }
  11.   return null;
  12. }

代码示例来源：origin: geotools/geotools

  1. public Object getUserData() {
  2.   return geometry.getUserData();
  3. }

代码示例来源：origin: geotools/geotools

  1. @SuppressWarnings("rawtypes")
  2. String getMetadata(Geometry g, String metadata) {
  3.   if (g.getUserData() instanceof Map) {
  4.     Map userData = (Map) g.getUserData();
  5.     return (String) userData.get(metadata);
  6.   }
  7.   return null;
  8. }

代码示例来源：origin: geotools/geotools

  1. /**
  2.  * Determines the crs of the geometry by checking {@link Geometry#getUserData()}.
  3.  *
  4.  * <p>This method returns <code>null</code> when no crs can be found.
  5.  */
  6. public static CoordinateReferenceSystem getCRS(Geometry g) {
  7.   if (g.getUserData() == null) {
  8.     return null;
  9.   }
  10.   if (g.getUserData() instanceof CoordinateReferenceSystem) {
  11.     return (CoordinateReferenceSystem) g.getUserData();
  12.   }
  13.   if (g.getUserData() instanceof Map) {
  14.     Map userData = (Map) g.getUserData();
  15.     return (CoordinateReferenceSystem) userData.get(CoordinateReferenceSystem.class);
  16.   }
  17.   return null;
  18. }

代码示例来源：origin: geotools/geotools

  1. @SuppressWarnings({"unchecked", "rawtypes"})
  2. void setMetadata(Geometry g, String metadata, String value) {
  3.   if (g.getUserData() == null) {
  4.     g.setUserData(new HashMap());
  5.   }
  6.   if (g.getUserData() instanceof Map) {
  7.     ((Map) g.getUserData()).put(metadata, value);
  8.   }
  9. }

代码示例来源：origin: geotools/geotools

  1. public Object getProperty(Object object, QName name) throws Exception {
  2.     if ("srsName".equals(name.getLocalPart())) {
  3.       Geometry geometry = (Geometry) object;
  5.       if (geometry.getUserData() instanceof CoordinateReferenceSystem) {
  6.         return GML2EncodingUtils.crs((CoordinateReferenceSystem) geometry.getUserData());
  7.       }
  8.     }
  10.     return null;
  11.   }
  12. }

代码示例来源：origin: geotools/geotools

  1. private void initCRS(Geometry g) {
  2.     // see if we have a native CRS in the mix
  3.     if (crs == null && g.getUserData() instanceof CoordinateReferenceSystem) {
  4.       crs = (CoordinateReferenceSystem) g.getUserData();
  5.     }
  6.     if (srid == -1 && g.getSRID() > 0) {
  7.       srid = g.getSRID();
  8.     }
  9.   }
  10. }

代码示例来源：origin: geotools/geotools

  1. /** Get axisLabels for the geometry if set in app-schema mapping configuration. */
  2. public static String getAxisLabels(Geometry g) {
  3.   Object userData = g.getUserData();
  4.   if (userData != null && userData instanceof Map) {
  5.     Object attributes = ((Map) userData).get(Attributes.class);
  6.     if (attributes != null && attributes instanceof Map) {
  7.       Name attribute = new NameImpl("axisLabels");
  8.       Object axisLabels = ((Map) attributes).get(attribute);
  9.       if (axisLabels != null) {
  10.         return axisLabels.toString();
  11.       }
  12.     }
  13.   }
  14.   return null;
  15. }

代码示例来源：origin: geotools/geotools

  1. /** Get uomLabels for the geometry if set in app-schema mapping configuration. */
  2. public static String getUomLabels(Geometry g) {
  3.   Object userData = g.getUserData();
  4.   if (userData != null && userData instanceof Map) {
  5.     Object attributes = ((Map) userData).get(Attributes.class);
  6.     if (attributes != null && attributes instanceof Map) {
  7.       Name attribute = new NameImpl("uomLabels");
  8.       Object uomLabels = ((Map) attributes).get(attribute);
  9.       if (uomLabels != null) {
  10.         return uomLabels.toString();
  11.       }
  12.     }
  13.   }
  14.   return null;
  15. }

代码示例来源：origin: geotools/geotools

  1. @Override
  2. public Envelope decodeGeometryEnvelope(ResultSet rs, int column, Connection cx)
  3.     throws SQLException, IOException {
  4.   String s = rs.getString(column);
  5.   Geometry g = decodeGeometry(s, null);
  6.   if (g == null) {
  7.     return null;
  8.   }
  9.   return new ReferencedEnvelope(
  10.       g.getEnvelopeInternal(), (CoordinateReferenceSystem) g.getUserData());
  11. }

代码示例来源：origin: geotools/geotools

  1. @Override
  2. public Object visit(Literal expression, Object extraData) {
  3.   Object value = expression.getValue();
  4.   if (value instanceof Geometry) {
  5.     Geometry g = (Geometry) value;
  6.     if (g.getUserData() instanceof CoordinateReferenceSystem) {
  7.       return g.getUserData();
  8.     } else if (g.getSRID() > 0) {
  9.       try {
  10.         return CRS.decode("EPSG:" + g.getSRID());
  11.       } catch (Exception e) {
  12.         return null;
  13.       }
  14.     }
  15.   }
  16.   return null;
  17. }

代码示例来源：origin: geotools/geotools

  1. private CoordinateReferenceSystem evaluateCRS(SimpleFeature originalFeature) {
  2.   SimpleFeatureType originalSchema = originalFeature.getFeatureType();
  3.   CoordinateReferenceSystem computedCRS = evaluateCRS(originalSchema);
  4.   if (computedCRS == null) {
  5.     // all right, let's try the sample feature then
  6.     Geometry g = expression.evaluate(originalFeature, Geometry.class);
  7.     if (g != null && g.getUserData() instanceof CoordinateReferenceSystem) {
  8.       computedCRS = (CoordinateReferenceSystem) g.getUserData();
  9.     } else {
  10.       try {
  11.         computedCRS = CRS.decode("EPSG:" + g.getSRID());
  12.       } catch (Exception e) {
  13.         return null;
  14.       }
  15.     }
  16.   }
  17.   return computedCRS;
  18. }

代码示例来源：origin: geotools/geotools

  1. public Object visit(Literal expression, Object extraData) {
  2.     if (!(expression.getValue() instanceof Geometry)) return super.visit(expression, extraData);
  4.     // check if reprojection is needed
  5.     Geometry geom = (Geometry) expression.getValue();
  6.     if (geom.getUserData() != null && geom.getUserData() instanceof CoordinateReferenceSystem)
  7.       return super.visit(expression, extraData);
  9.     // clone the geometry and assign the new crs
  10.     Geometry clone = geom.getFactory().createGeometry(geom);
  11.     clone.setUserData(defaultCrs);
  13.     // clone
  14.     return ff.literal(clone);
  15.   }
  16. }

代码示例来源：origin: geotools/geotools

  1. @Test
  2. public void setCRSCode() throws Exception {
  3.   Function f = ff.function("setCRS", ff.literal(g), ff.literal("EPSG:4326"));
  4.   Geometry sg = (Geometry) f.evaluate(null);
  5.   assertEquals(CRS.decode("EPSG:4326"), sg.getUserData());
  6. }

代码示例来源：origin: geotools/geotools

  1. @Test
  2.   public void testPreserveOriginalSRS() throws NoSuchAuthorityCodeException, FactoryException {
  3.     String srs = "AUTO:42004,9001,0,33";
  4.     CoordinateReferenceSystem crs = CRS.decode(srs);
  5.     BBOX bbox = ff.bbox(ff.property(""), 0, 1000, 2000, 3000, srs);
  6.     Geometry geom = bbox.getExpression2().evaluate(null, Geometry.class);
  7.     assertEquals(crs, geom.getUserData());
  8.     assertEquals(srs, bbox.getSRS());
  9.   }
  10. }

代码示例来源：origin: geotools/geotools

  1. @Test
  2. public void force3DCRS2DEnvelope() throws Exception {
  3.   CoordinateReferenceSystem crs = CRS.decode("EPSG:4939", true);
  4.   CoordinateReferenceSystem hcrs = CRS.getHorizontalCRS(crs);
  5.   BBOX bbox = ff.bbox("the_geom", -180, -90, 180, 90, null);
  6.   DefaultCRSFilterVisitor visitor = new DefaultCRSFilterVisitor(ff, crs);
  7.   BBOX filtered = (BBOX) bbox.accept(visitor, null);
  8.   Literal box = (Literal) filtered.getExpression2();
  9.   Geometry g = (Geometry) box.evaluate(null);
  10.   assertEquals(hcrs, g.getUserData());
  11. }

代码示例来源：origin: geotools/geotools

  1. @Test
  2. public void setCRSObject() {
  3.   Function f = ff.function("setCRS", ff.literal(g), ff.literal(DefaultGeographicCRS.WGS84));
  4.   Geometry sg = (Geometry) f.evaluate(null);
  5.   assertEquals(DefaultGeographicCRS.WGS84, sg.getUserData());
  6. }

代码示例来源：origin: geotools/geotools

  1. @Test
  2.   public void force3DCRS3DEnvelope() throws Exception {
  3.     CoordinateReferenceSystem crs = CRS.decode("EPSG:4939", true);
  4.     CoordinateReferenceSystem hcrs = CRS.getHorizontalCRS(crs);
  5.     BBOX bbox =
  6.         ff.bbox(
  7.             ff.property("the_geom"),
  8.             new ReferencedEnvelope3D(-180, 180, -90, 90, 0, 100, null));
  9.     DefaultCRSFilterVisitor visitor = new DefaultCRSFilterVisitor(ff, crs);
  10.     BBOX filtered = (BBOX) bbox.accept(visitor, null);
  11.     Literal box = (Literal) filtered.getExpression2();
  12.     Geometry g = (Geometry) box.evaluate(null);
  13.     assertEquals(crs, g.getUserData());
  14.   }
  15. }

代码示例来源：origin: geotools/geotools

  1. @Test
  2.   public void setCRSWkt() {
  3.     Function f =
  4.         ff.function(
  5.             "setCRS", ff.literal(g), ff.literal(DefaultGeographicCRS.WGS84.toWKT()));
  6.     Geometry sg = (Geometry) f.evaluate(null);
  7.     assertTrue(CRS.equalsIgnoreMetadata(DefaultGeographicCRS.WGS84, sg.getUserData()));
  8.   }
  9. }

内容来源于网络，如有侵权，请联系作者删除！

Geometry

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

    Geometry类方法

    • 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