Examples of org.geotools.styling.Halo

org.geotools.styling.Halo
l.opengeospatial.org/files/?artifact_id=1188"> OGC Styled-Layer Descriptor Report (OGC 02-070) version 1.0.0.:
```
 <xsd:element name="Halo"> <xsd:annotation> <xsd:documentation> A "Halo" fills an extended area outside the glyphs of a rendered text label to make the label easier to read over a background. </xsd:documentation> </xsd:annotation> <xsd:complexType> <xsd:sequence> <xsd:element ref="sld:Radius" minOccurs="0"/> <xsd:element ref="sld:Fill" minOccurs="0"/> </xsd:sequence> </xsd:complexType> </xsd:element> 
```
Renderers can use this information when displaying styled features, though it must be remembered that not all renderers will be able to fully represent strokes as set out by this interface. For example, opacity may not be supported.

Notes:
- The graphical parameters and their values are derived from SVG/CSS2 standards with names and semantics which are as close as possible.
$Id$ @author Ian Turton, CCG @source $URL$

        assertEquals(0.5, valueOf(placement.getAnchorPoint().getAnchorPointX()));
        assertEquals(0.5, valueOf(placement.getAnchorPoint().getAnchorPointY()));
        assertEquals(labelXOffset, valueOf(placement.getDisplacement().getDisplacementX()).toString());
        assertEquals(labelYOffset, valueOf(placement.getDisplacement().getDisplacementY()).toString());


        Halo halo = symbolizer.getHalo();
        assertFill(0.7, haloColor, halo.getFill());
        assertEquals(haloRadius, valueOf(halo.getRadius()).toString());


        style.put("label", "label");
        style.put("fontSize", "15");
        symbolizer = helper.createTextSymbolizer(pStyle);
        assertEquals("label", valueOf(symbolizer.getLabel()));

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        assertEquals("fontColor", propertyName(textSymbolizer.getFill().getColor()));
        assertEquals("fontFamily", propertyName(textSymbolizer.getFont().getFamily().get(0)));
        assertEquals("fontSize", propertyName(textSymbolizer.getFont().getSize()));
        assertEquals("fontStyle", propertyName(textSymbolizer.getFont().getStyle()));
        assertEquals("fontWeight", propertyName(textSymbolizer.getFont().getWeight()));
        final Halo halo = textSymbolizer.getHalo();
        assertEquals("haloColor", propertyName(halo.getFill().getColor()));
        assertEquals("haloOpacity", propertyName(halo.getFill().getOpacity()));
        assertEquals("haloRadius", propertyName(halo.getRadius()));
        assertEquals("label", propertyName(textSymbolizer.getLabel()));
        assertEquals("labelRotation", propertyName(((PointPlacement)textSymbolizer.getLabelPlacement()).getRotation()));




    }

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    public Halo build() {
        if (unset)
            return null;


        Halo halo = sf.createHalo(fill.build(), radius);
        if (parent == null)
            reset();


        return halo;
    }

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    // setup fill and composite
    ts2d.setFill(getPaint(symbolizer.getFill(), feature, symbolizer));
    ts2d.setComposite(getComposite(symbolizer.getFill(), feature));


    // compute halo parameters
    Halo halo = symbolizer.getHalo();


    if (halo != null) {
      ts2d.setHaloFill(getPaint(halo.getFill(), feature, symbolizer));
      ts2d.setHaloComposite(getComposite(halo.getFill(), feature));
      ts2d.setHaloRadius(evalToFloat(halo.getRadius(), feature, 1));
    }


    Graphic graphicShield = null;
    if (symbolizer instanceof TextSymbolizer2) {
      graphicShield = ((TextSymbolizer2) symbolizer).getGraphic();

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    }


    public void visit(Halo halo) {
        Fill fill = copy(halo.getFill());
        Expression radius = copy(halo.getRadius());
        Halo copy = sf.createHalo(fill, radius);


        if (STRICT && !copy.equals(halo)) {
            throw new IllegalStateException("Was unable to duplicate provided raster:" + halo);
        }
        pages.push(copy);
    }

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        assertEqualsContract(clone, other, font);
    }


    public void testHalo() {
        Halo halo = sf.createHalo(sf.getDefaultFill(),
                ff.literal(10));
        
        halo.accept(visitor);
        Halo clone = (Halo) visitor.getCopy();
        
        assertCopy(halo, clone);


        Halo other = sf.createHalo(sf.getDefaultFill(),
                ff.literal(12));
        assertEqualsContract(clone, other, halo);
    }

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    }


    public void test() throws Exception {
        SLDMockData.halo(document, document, true);


        Halo halo = (Halo) parse();
        assertNotNull(halo);
        assertNotNull(halo.getFill());
        assertEquals(1.0d, Filters.asDouble(halo.getRadius()), 0d);
    }

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    }
    
    public void testDefaults() throws Exception {
        SLDMockData.halo(document, document, false);


        Halo halo = (Halo) parse();
        assertNotNull(halo);
        assertNotNull(halo.getFill());
        assertEquals(1.0d, Filters.asDouble(halo.getRadius()), 0d);
    }

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  /** Internal parse method - made protected for unit testing */
  protected Halo parseHalo(Node root) {
    if (LOGGER.isLoggable(Level.FINEST)) {
      LOGGER.finest("parsing halo");
    }
    Halo halo = factory.createHalo(
        factory.createFill(ff.literal("#FFFFFF")), ff.literal(1.0));


    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 (childName.equalsIgnoreCase(fillSt)) {
        halo.setFill(parseFill(child));
      } else if (childName.equalsIgnoreCase("Radius")) {
        halo.setRadius(parseCssParameter(child));
      }


    }


    return halo;

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Related Classes of org.geotools.styling.Halo

org.geoserver.w3ds.styles.SLD3DParser

org.geotools.renderer.style.SLDStyleFactory

org.geotools.sld.bindings.SLDHaloBindingTest

org.geotools.styling.builder.HaloBuilder

org.geotools.styling.visitor.DuplicatingStyleVisitor

org.geotools.styling.visitor.DuplicatorStyleVisitorTest

org.mapfish.print.map.style.json.JsonStyleParserHelperTest

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