Examples of org.geotools.styling.ShadedRelief

org.geotools.styling.ShadedRelief
The ShadedRelief element selects the application of relief shading (or ?hill shading?) to an image for a three-dimensional visual effect. It is defined as:
```
 <xs:element name="ShadedRelief"> <xs:complexType> <xs:sequence> <xs:element ref="sld:BrightnessOnly" minOccurs="0"/> <xs:element ref="sld:ReliefFactor" minOccurs="0"/> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="BrightnessOnly" type="xs:boolean"/> <xs:element name="ReliefFactor" type="xs:double"/> 
```
Exact parameters of the shading are system-dependent (for now). If the BrightnessOnly flag is ?0? (false, default), the shading is applied to the layer being rendered as the current RasterSymbol. If BrightnessOnly is ?1? (true), the shading is applied to the brightness of the colors in the rendering canvas generated so far by other layers, with the effect of relief-shading these other layers. The default for BrightnessOnly is ?0? (false). The ReliefFactor gives the amount of exaggeration to use for the height of the ?hills.? A value of around 55 (times) gives reasonable results for Earth-based DEMs. The default value is system-dependent. @author iant @source $URL$


        // check the symbolizer
        RasterSymbolizer rs = (RasterSymbolizer) collector.symbolizers.get(0);
        assertNull(rs.getChannelSelection());
        assertNull(rs.getColorMap());
        ShadedRelief sr = rs.getShadedRelief();
        assertEquals(10.0, sr.getReliefFactor().evaluate(null, Double.class), 0.0);
        assertTrue(sr.isBrightnessOnly());
    }

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    public ShadedRelief build() {
        if (unset) {
            return null;
        }
        ShadedRelief relief = sf.shadedRelief(factor, brightnessOnly);
        return relief;
    }

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     * @return copy of shaded or null if not provided
     */
    protected ShadedRelief copy(ShadedRelief shaded) {
        if( shaded == null ) return null;
        Expression reliefFactor = copy( shaded.getReliefFactor() );
        ShadedRelief copy = sf.createShadedRelief( reliefFactor );
        copy.setBrightnessOnly( shaded.isBrightnessOnly() );
        
        return copy;
    }

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        }
        pages.push(copy);
    }


    public void visit(ShadedRelief sr) {
        final ShadedRelief copy = sf.createShadedRelief(copy(sr.getReliefFactor()));
        copy.setBrightnessOnly(sr.isBrightnessOnly());
        if (STRICT && !copy.equals(sr)) {
            throw new IllegalStateException("Was unable to duplicate provided ShadedRelief:" + sr);
        }
        pages.push(copy);


    }

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        if (node.hasChild("ReliefFactor")) {
            Double d = (Double) node.getChildValue("ReliefFactor");
            reliefFactor = (Expression) filterFactory.literal(d.doubleValue());
        }


        ShadedRelief shadedRelief = styleFactory.createShadedRelief(reliefFactor);


        if (node.hasChild("BrightnessOnly")) {
            Boolean b = (Boolean) node.getChildValue("BrightnessOnly");
            shadedRelief.setBrightnessOnly(b.booleanValue());
        }


        return shadedRelief;
    }

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    return symbol;
  }


  /** Internal parse method - made protected for unit testing */
  protected ShadedRelief parseShadedRelief(Node root) {
    ShadedRelief symbol = new ShadedReliefImpl();


    NodeList children = root.getChildNodes();
    final int length = children.getLength();
    for (int i = 0; i < length; i++) {
      Node child = children.item(i);


      if ((child == null) || (child.getNodeType() != Node.ELEMENT_NODE)) {
        continue;
      }
      String childName = child.getLocalName();
      if (childName == null) {
        childName = child.getNodeName();
      }
      if ("BrightnessOnly".equalsIgnoreCase(childName)) {
        symbol.setBrightnessOnly(Boolean
            .getBoolean(getFirstChildValue(child)));
      } else if ("ReliefFactor".equalsIgnoreCase(childName)) {
        try {
          final String reliefString = getFirstChildValue(child);
          Expression relief = ExpressionDOMParser
              .parseExpression(child);
          symbol.setReliefFactor(relief);
        } catch (Exception e) {
          if (LOGGER.isLoggable(Level.WARNING))
            LOGGER.log(Level.WARNING, e.getLocalizedMessage(), e);
        }
      }

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Related Classes of org.geotools.styling.ShadedRelief

org.geoserver.w3ds.styles.SLD3DParser

org.geotools.sld.bindings.SLDShadedReliefBinding

org.geotools.styling.builder.CookbookRasterTest

org.geotools.styling.builder.ShadedReliefBuilder

org.geotools.styling.visitor.DuplicatingStyleVisitor

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