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 $Id$

            }
        }
        if (symb instanceof PointSymbolizer) {
            int imgH = bI.getHeight();
            int imgW = bI.getWidth();
            PointSymbolizer pointSymbolizer = (PointSymbolizer) symb;


            Color c = SLDs.pointColor(pointSymbolizer);
            Color fill = SLDs.pointFill(pointSymbolizer);
            int width = SLDs.width(SLDs.stroke(pointSymbolizer));
            if (width < 1)

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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().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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                g.setStroke(ViewportGraphics.LINE_SOLID, w);
                g.draw( shape );
            }                      
        }
        if( symb instanceof PointSymbolizer){
            PointSymbolizer pointSymbolizer = (PointSymbolizer) symb;
            
            Color c = SLDs.pointColor( pointSymbolizer );
            Color fill=SLDs.pointFillWithAlpha( pointSymbolizer );
            int width = SLDs.width(SLDs.stroke(pointSymbolizer));
            float[] point=new float[6];

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    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 filterFactory = builder.getFilterFactory();
          point.getGraphic().setSize( filterFactory.literal(10));
            for( GraphicalSymbol symbol : point.getGraphic().graphicalSymbols() ){
                if( symbol instanceof Mark){
                    Mark mark = (Mark) symbol;
                    mark.setFill( builder.createFill( baseColor ));
                }
            }

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     * @return a simple style to use in default cases.
     */
    public static Style createPointStyle( String typeName ) {
        StyleBuilder sb = new StyleBuilder();
        Style pointstyle = sb.createStyle();
        PointSymbolizer point = sb.createPointSymbolizer(sb.createGraphic());


        pointstyle.addFeatureTypeStyle(sb.createFeatureTypeStyle(point));


        pointstyle.getFeatureTypeStyles()[0].setFeatureTypeName(SLDs.GENERIC_FEATURE_TYPENAME);
        return pointstyle;

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                        PolygonSymbolizer ps = (PolygonSymbolizer) symb[0];
                        Fill fill = ps.getFill();
                        oldColorExpr = fill.getColor();
                        fill.setColor(newColorExpr);
                    }else if (symb[0] instanceof PointSymbolizer) {
                        PointSymbolizer ps = (PointSymbolizer) symb[0];
                        Mark[] marks = ps.getGraphic().getMarks();
                        if(marks!=null && marks.length>0){
                            oldColorExpr = marks[0].getFill().getColor();
                            marks[0].getFill().setColor(newColorExpr);
                        }
                    }else if (symb[0] instanceof LineSymbolizer) {
                        LineSymbolizer ps = (LineSymbolizer) symb[0];
                        Stroke stroke = ps.getStroke();
                        oldColorExpr = stroke.getColor();
                        stroke.setColor(newColorExpr);
                    }
                    
                    if (newColorExpr.equals(oldColorExpr)) {

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        if(defaultStyle == null)
            return;
        
        Rule rule = defaultStyle.rules().get(0);
        // Find the first PointSymbolizer in the rule
        PointSymbolizer sym = null;
        for(Symbolizer symbolizer : rule.symbolizers()) {
            if(symbolizer instanceof PointSymbolizer) {
                sym = (PointSymbolizer)symbolizer;
                break;
            }
        }
        if(sym == null) {
            SLD.POINT.createDefault();
            rule.symbolizers().add(sym);
        }
        
//        IProgressMonitor monitor = new NullProgressMonitor();
//        getSelectedLayer().getResource(FeatureSource.class, monitor);
        
        Graphic g = sym.getGraphic();
        Expression opacity = g.getOpacity();
        Expression rotation = g.getRotation();
        Expression size = g.getSize();
        AnchorPoint anchor = g.getAnchorPoint();
        Displacement displacement = g.getDisplacement();

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        GeometryDescriptor geom = schema.getGeometryDescriptor();
        if (isLine(geom)) {
            ssc.getDefaultRule(style).setSymbolizers(createLineSymbolizers(ssc));
        } else if (isPoint(geom)) {
            int size = queryPointSize(style);
            PointSymbolizer sym = ssc.createPointSymbolizer(getSelectionColor(), size);
            Symbolizer[] symbolizers = new Symbolizer[]{sym};
            ssc.getDefaultRule(style).setSymbolizers(symbolizers);
        } else if (isPolygon(geom)) {
            ssc.getDefaultRule(style).setSymbolizers(createPolygonSymbolizarts(ssc));
        } else {

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    }
    
    private static int queryPointSize( Object style ) {
        int size = 6;
        if( style instanceof Style ){
            PointSymbolizer pointSymbolizer = SLD.pointSymbolizer( (Style) style );
            if( pointSymbolizer != null ){
                Mark mark = SLD.mark( pointSymbolizer );
                if( mark != null ){
                    size = SLD.size( mark );
                }
            }
        }
        if( style instanceof FeatureTypeStyle){
            PointSymbolizer pointSymbolizer = SLD.pointSymbolizer( (FeatureTypeStyle) style );
            if( pointSymbolizer != null ){
                Mark mark = SLD.mark( pointSymbolizer );
                if( mark != null ){
                    size = SLD.size( mark );
                }

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        Fill fill = styleBuilder.createFill(Color.YELLOW, 0.0);
        Stroke stroke = builder.createStroke(colour, 2);
        Mark mark = styleBuilder.createMark("square", fill, stroke); //$NON-NLS-1$


        Graphic graph2 = styleBuilder.createGraphic(null, mark, null, 1, size, 0);
        PointSymbolizer symb = styleBuilder.createPointSymbolizer(graph2);


        symb.getGraphic().setMarks(new Mark[]{mark});


        return symb;
    }

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