Examples of org.geotools.styling.PointSymbolizer

org.geotools.styling.PointSymbolizer
l.opengeospatial.org/files/?artifact_id=1188"> OGC Styled-Layer Descriptor Report (OGC 02-070) version 1.0.0.:
```
 <xsd:element name="PointSymbolizer" substitutionGroup="sld:Symbolizer"> <xsd:annotation> <xsd:documentation> A "PointSymbolizer" specifies the rendering of a "graphic symbol" at a point. </xsd:documentation> </xsd:annotation> <xsd:complexType> <xsd:complexContent> <xsd:extension base="sld:SymbolizerType"> <xsd:sequence> <xsd:element ref="sld:Geometry" minOccurs="0"/> <xsd:element ref="sld:Graphic" minOccurs="0"/> </xsd:sequence> </xsd:extension> </xsd:complexContent> </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.
@author James Macgill @source $URL$ @version $Id$

        circleMark.setStroke(sf.createStroke(ff.literal(Color.BLACK), ff.literal(DEFAULT_WIDTH)));
        graphic.graphicalSymbols().clear();
        graphic.graphicalSymbols().add(circleMark);
        graphic.setSize(ff.literal(DEFAULT_SIZE));


        PointSymbolizer pointSymbolizer = sf.createPointSymbolizer();
        Rule rule = sf.createRule();
        rule.setName("New rule");
        rule.symbolizers().add(pointSymbolizer);


        pointSymbolizer.setGraphic(graphic);
        return rule;
    }

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     * @param rule the rule to check for symbolizers.
     * @return the first symbolizer found.
     */
    public static PointSymbolizer pointSymbolizerFromRule( Rule rule ) {
        List<Symbolizer> symbolizers = rule.symbolizers();
        PointSymbolizer pointSymbolizer = null;
        for( Symbolizer symbolizer : symbolizers ) {
            if (symbolizer instanceof PointSymbolizer) {
                pointSymbolizer = (PointSymbolizer) symbolizer;
                break;
            }

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     * 
     * @param rule the rule of which the mark has to be changed.
     * @param wellKnownMarkName the name of the new mark.
     */
    public static void substituteMark( Rule rule, String wellKnownMarkName ) {
        PointSymbolizer pointSymbolizer = Utilities.pointSymbolizerFromRule(rule);
        Mark oldMark = SLDs.mark(pointSymbolizer);


        Graphic graphic = SLDs.graphic(pointSymbolizer);
        graphic.graphicalSymbols().clear();

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            } catch (MalformedURLException e) {
                e.printStackTrace();
            }
        }


        PointSymbolizer pointSymbolizer = Utilities.pointSymbolizerFromRule(rule);
        Graphic graphic = SLDs.graphic(pointSymbolizer);
        graphic.graphicalSymbols().clear();
        ExternalGraphic exGraphic = sf.createExternalGraphic(externalGraphicsUrl, format);


        graphic.graphicalSymbols().add(exGraphic);

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     * 
     * @param rule the {@link Rule}.
     * @param newSize the new size.
     */
    public static void changeMarkSize( Rule rule, int newSize ) {
        PointSymbolizer pointSymbolizer = Utilities.pointSymbolizerFromRule(rule);
        Graphic graphic = SLDs.graphic(pointSymbolizer);
        graphic.setSize(ff.literal(newSize));
        // Mark oldMark = SLDs.mark(pointSymbolizer);
        // oldMark.setSize(ff.literal(newSize));
        // Graphic graphic = SLDs.graphic(pointSymbolizer);

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     * 
     * @param rule the {@link Rule}.
     * @param newRotation the new rotation value in degrees.
     */
    public static void changeRotation( Rule rule, int newRotation ) {
        PointSymbolizer pointSymbolizer = Utilities.pointSymbolizerFromRule(rule);
        Graphic graphic = SLDs.graphic(pointSymbolizer);
        graphic.setRotation(ff.literal(newRotation));
        // Mark oldMark = SLDs.mark(pointSymbolizer);
        // oldMark.setSize(ff.literal(newRotation));
    }

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        gr.graphicalSymbols().add(exGraphic);
        Expression size = ff.literal(20);
        gr.setSize(size);


        Rule rule = sf.createRule();
        PointSymbolizer pointSymbolizer = sf.createPointSymbolizer(gr, null);
        rule.symbolizers().add(pointSymbolizer);


        FeatureTypeStyle featureTypeStyle = sf.createFeatureTypeStyle();
        featureTypeStyle.rules().add(rule);

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                g2d.setStroke(bStroke);
                g2d.draw(shape);
            }
        }
        if (symb instanceof PointSymbolizer) {
            PointSymbolizer pointSymbolizer = (PointSymbolizer) symb;


            AffineTransform transform = g.getTransform();


            // offset
            Point2D offset = Utilities.getOffset(pointSymbolizer);

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        StyleBuilder builder = new StyleBuilder();
        Symbolizer[] syms = new Symbolizer[1];
        if (LineString.class.isAssignableFrom(type) || MultiLineString.class.isAssignableFrom(type))
            syms[0] = builder.createLineSymbolizer(baseColor, 2);
        if (Point.class.isAssignableFrom(type) || MultiPoint.class.isAssignableFrom(type)) {
            PointSymbolizer point = builder.createPointSymbolizer(builder.createGraphic());
            FilterFactory ff = builder.getFilterFactory();
            // point.getGraphic().getMarks()[0].setSize((Expression) ff.literal(10));
            point.getGraphic().setSize(ff.literal(10));
            Mark mark = (Mark) point.getGraphic().graphicalSymbols().get(0);
            mark.setFill(builder.createFill(baseColor));
            syms[0] = point;
        }
        if (Polygon.class.isAssignableFrom(type) || MultiPolygon.class.isAssignableFrom(type)) {
            syms[0] = builder.createPolygonSymbolizer(builder.createStroke(baseColor, 2),

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    public static StyleBuilder getStyleBuilder() {
        return styleBuilder;
    }


    protected static PointSymbolizer createPointSymbolizer(Color colour) {
        PointSymbolizer symb=styleBuilder.createPointSymbolizer();
        Fill fill = styleBuilder.createFill(colour, 1.0);        


        Stroke outline=styleBuilder.createStroke(Color.BLACK,1,1);


        // check existing default graphics
        if (symb.getGraphic().graphicalSymbols() != null && symb.getGraphic().graphicalSymbols().size() == 1) {
            symb.getGraphic().graphicalSymbols().clear();
        }
        symb.getGraphic().graphicalSymbols().add(styleBuilder.createMark(StyleBuilder.MARK_SQUARE, fill, outline));


        symb.getGraphic().setSize( styleBuilder.literalExpression(6.0));
        return symb;
    }

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