Examples of org.geotools.styling.Graphic

org.geotools.styling.Graphic
l.opengeospatial.org/files/?artifact_id=1188"> OGC Styled-Layer Descriptor Report (OGC 02-070) version 1.0.0.:
```
 <xsd:element name="Graphic"> <xsd:annotation> <xsd:documentation> A "Graphic" specifies or refers to a "graphic symbol" with inherent shape, size, and coloring. </xsd:documentation> </xsd:annotation> <xsd:complexType> <xsd:sequence> <xsd:choice minOccurs="0" maxOccurs="unbounded"> <xsd:element ref="sld:ExternalGraphic"/> <xsd:element ref="sld:Mark"/> </xsd:choice> <xsd:sequence> <xsd:element ref="sld:Opacity" minOccurs="0"/> <xsd:element ref="sld:Size" minOccurs="0"/> <xsd:element ref="sld:Rotation" minOccurs="0"/> </xsd:sequence> </xsd:sequence> </xsd:complexType> </xsd:element> 
```
Renderers can ue 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.
@task REVISIT: There are no setter methods in this interface, is this aproblem? @source $URL$

        style.accept(collector);
        assertSimpleStyle(collector);


        // check the size and rotation
        PointSymbolizer ps = (PointSymbolizer) collector.symbolizers.get(0);
        Graphic graphic = ps.getGraphic();
        assertEquals(32, (int) graphic.getSize().evaluate(null, Integer.class));


        // check the mark
        List<GraphicalSymbol> symbols = graphic.graphicalSymbols();
        assertEquals(1, symbols.size());
        ExternalGraphic eg = (ExternalGraphic) symbols.get(0);
        assertEquals("image/png", eg.getFormat());
        assertEquals("smileyface.png", eg.getOnlineResource().getLinkage().toString());
    }

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        assertEquals(1, collector.rules.size());
        assertEquals(2, collector.symbolizers.size());


        // check the size and rotation of the point symbolizer
        PointSymbolizer ps = (PointSymbolizer) collector.symbolizers.get(0);
        Graphic graphic = ps.getGraphic();
        assertEquals(6, (int) graphic.getSize().evaluate(null, Integer.class));


        // check the mark
        List<GraphicalSymbol> symbols = graphic.graphicalSymbols();
        assertEquals(1, symbols.size());
        Mark mark = (Mark) symbols.get(0);
        assertEquals("circle", mark.getWellKnownName().evaluate(null));
        Fill fill = mark.getFill();
        assertEquals(Color.RED, fill.getColor().evaluate(null, Color.class));

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        style.accept(collector);
        assertSimpleStyle(collector);


        // check the function is there were we expect it
        PointSymbolizer ps = (PointSymbolizer) collector.symbolizers.get(0);
        Graphic graphic = ps.getGraphic();
        assertTrue(graphic.getSize() instanceof CategorizeFunction);
    }

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    public void testResizeGraphicFill() throws Exception {
        URL url = StreamingRenderer.class.getResource("test-data/");
        PolygonSymbolizer symb = sf.createPolygonSymbolizer();
        ExternalGraphic eg = sf.createExternalGraphic(url + "icon64.png", "image/png");
        Graphic g = sf.createGraphic(new ExternalGraphic[] {eg}, null, null, null, ff.literal(20), null);
        Fill fill = sf.createFill(null, null, null, g);
        symb.setFill(fill);
        
        PolygonStyle2D ps = sld.createPolygonStyle(feature, symb, range);
        assertTrue(ps.getFill() instanceof TexturePaint);

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            buffer = Math.max(buffer, total);
        }
        
        // take into account label shields if any
        if(text instanceof TextSymbolizer2) {
            Graphic graphic = ((TextSymbolizer2) text).getGraphic();
            if(graphic != null) {
                graphic.accept(this);
            }
        }
    }

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      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();
      if (graphicShield != null) {
        Style2D shieldStyle = createPointStyle(feature, symbolizer, graphicShield, scaleRange, true);
        ts2d.setGraphic(shieldStyle);

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        assertTrue(rbe.isEstimateAccurate());
    }
    
    @Test
    public void testLiteralParseGraphics() {
        Graphic g = sb.createGraphic();
        g.setSize(sb.literalExpression("10.0"));
        MetaBufferEstimator rbe = new MetaBufferEstimator();
        rbe.visit(g);
        assertEquals(11, rbe.getBuffer());
        assertTrue(rbe.isEstimateAccurate());
    }

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    Expression rotation = null; // use default
    AnchorPoint anchor = null; // use default
    Displacement displacement = null; // use default
    
    // define a point symbolizer of a small circle
    Graphic city = sf.graphic(symbols, opacity, size, rotation, anchor, displacement);
    PointSymbolizer pointSymbolizer = sf.pointSymbolizer("point", ff.property("the_geom"), null,
            null, city);
    
    rule1.symbolizers().add(pointSymbolizer);
    
    featureTypeStyle.rules().add(rule1);
    
    //
    // RULE 2 Default
    
    List<GraphicalSymbol> dotSymbols = new ArrayList<GraphicalSymbol>();
    dotSymbols.add(sf.mark(ff.literal("circle"), null, null));
    Graphic dotGraphic = sf.graphic(dotSymbols, null, ff.literal(3), null, null, null);
    PointSymbolizer dotSymbolizer = sf.pointSymbolizer("dot", null, null, null, dotGraphic);
    List<org.opengis.style.Symbolizer> symbolizers = new ArrayList<org.opengis.style.Symbolizer>();
    symbolizers.add(dotSymbolizer);
    Filter other = null; // null will mark this rule as "other" accepting all remaining features
    Rule rule2 = sf.rule("default", null, null, Double.MIN_VALUE, Double.MAX_VALUE, symbolizers,

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    // RULE 1
    // first rule to draw cities
    
    // define a point symbolizer representing a city
    Graphic city = builder.createGraphic();
    city.setSize(ff.literal(10));
    city.graphicalSymbols().add(builder.createExternalGraphic("file:city.svg", "svg")); // svg
                                                                                        // preferred
    city.graphicalSymbols().add(builder.createExternalGraphic("file:city.png", "png")); // png next
    city.graphicalSymbols().add(
            builder.createMark(StyleBuilder.MARK_CIRCLE, Color.BLUE, Color.BLACK, 1));
    PointSymbolizer pointSymbolizer = builder.createPointSymbolizer(city, "the_geom");
    
    Rule rule1 = builder.createRule(pointSymbolizer);
    rule1.setName("rule1");
    rule1.getDescription().setTitle("City");
    rule1.getDescription().setAbstract("Rule for drawing cities");
    rule1.setFilter(ff.less(ff.property("POPULATION"), ff.literal(50000)));
    
    //
    // RULE 2 Default
    Graphic dotGraphic = builder.createGraphic(null, builder.createMark(StyleBuilder.MARK_CIRCLE),
            null);
    PointSymbolizer dotSymbolize = builder.createPointSymbolizer(dotGraphic);
    Rule rule2 = builder.createRule(dotSymbolize);
    rule2.setIsElseFilter(true);

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private void splatExample() {
    // splatExample start
    StyleBuilder builder = new StyleBuilder();
    FilterFactory2 ff = builder.getFilterFactory();
    
    Graphic splat = builder.createGraphic(null, builder.createMark("splat"), null);
    PointSymbolizer symbolizer = builder.createPointSymbolizer(splat);
    
    // builder will fill in all the other classes with defaults
    Style style = builder.createStyle(symbolizer);
    // splatExample end

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