Examples of org.geotools.styling.Fill

org.geotools.styling.Fill
l.opengeospatial.org/files/?artifact_id=1188"> OGC Styled-Layer Descriptor Report (OGC 02-070) version 1.0.0.:
```
 <xsd:element name="Fill"> <xsd:annotation> <xsd:documentation> A "Fill" specifies the pattern for filling an area geometry. The allowed CssParameters are: "fill" (color) and "fill-opacity". </xsd:documentation> </xsd:annotation> <xsd:complexType> <xsd:sequence> <xsd:element ref="sld:GraphicFill" minOccurs="0"/> <xsd:element ref="sld:CssParameter" minOccurs="0" maxOccurs="unbounded"/> </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.
@author James Macgill, CCG @source $URL$ @version $Id$

        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) {

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        Stroke stroke = styleBuilder.createStroke();
        stroke.setColor(styleBuilder.colorExpression(colour));
        stroke.setWidth(styleBuilder.literalExpression(1));


        Fill fill = styleBuilder.createFill();
        fill.setColor(styleBuilder.colorExpression(colour));
        fill.setOpacity(styleBuilder.literalExpression(.5));


        PolygonSymbolizer symbolizer = styleBuilder.createPolygonSymbolizer(stroke, fill);


        return symbolizer;
    }

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        public void visit( PolygonSymbolizer poly ) {
            Stroke stroke = poly.getStroke();
            if (stroke != null) {
                stroke.accept(this);
            }
            Fill fill = poly.getFill();
            if (fill != null) {
                fill.accept(this);
            }
        }

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    }


    private void applyFill( PolygonSymbolizer polygonSymbolizer, StyleBuilder styleBuilder ) {
        if (fillEnabled.getSelection()) {
            RGB c = fillColour.getColorValue();
            Fill fill = polygonSymbolizer.getFill();
            if (fill == null) {
                fill = styleBuilder.createFill();
                polygonSymbolizer.setFill(fill);
            }


            fill.setColor(styleBuilder.colorExpression(new Color(c.red, c.green, c.blue)));
            fill.setOpacity(styleBuilder.literalExpression(fillOpacity.getSelection()
                    / opacityMaxValueFloat));
        } else {
            polygonSymbolizer.setFill(null);
        }
    }

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        boolean fontBold = (this.font[0].getStyle() == SWT.BOLD);
        boolean fontItalic = (this.font[0].getStyle() == SWT.ITALIC);
        double fontSize = this.font[0].getHeight();
        Font gtFont = build.createFont(
                fontName, fontItalic, fontBold, fontSize);
        Fill fill = build.createFill(this.colour);
        
        LabelPlacement placement;
        if (pointPlacement) {
            //PointPlacement
            double horiz;

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                Rule rule = (Rule) data;
                Symbolizer[] symb = rule.getSymbolizers();
                if (symb.length == 1) { //we're only expecting 1
                    if (symb[0] instanceof PolygonSymbolizer) {
                        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();

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        return styles[0];
    }


    protected PointSymbolizer createPointSymbolizer( Color colour, int size ) {
        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);

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        // if( dashed ){
        // stroke.setDashArray(new float[]{5, 3});
        // }
        // symbolizer.setStroke(stroke);


        Fill fill = styleBuilder.createFill();
        fill.setColor(styleBuilder.colorExpression(colour));
        fill.setOpacity(styleBuilder.literalExpression(.5));
        symbolizer.setFill(fill);


        return symbolizer;
    }

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                        for( Symbolizer newSymbolizer : newSymbolizers ) {
                            if (newSymbolizer instanceof PointSymbolizer) {
                                PointSymbolizer newPointSymbolizer = (PointSymbolizer) newSymbolizer;


                                Mark mark = sb.createMark(oldMark.getWellKnownName().evaluate(null, String.class));
                                Fill newFill = sb.createFill(fill);
                                newFill.setOpacity(ff.literal(opac));
                                mark.setFill(newFill);


                                Stroke newStroke = oldMark.getStroke();
                                if (newStroke != null) {
                                    if (borderColor!=null) {
                                        newStroke.setColor(ff.literal(borderColor));
                                        mark.setStroke(newStroke);
                                    }else{
                                        mark.setStroke(null);
                                    }
                                }


                                Graphic newGraphic = SLDs.graphic(newPointSymbolizer);
                                newGraphic.setSize(oldGraphic.getSize());
                                newGraphic.setRotation( oldGraphic.getRotation());
                                newGraphic.graphicalSymbols().clear();
                                newGraphic.graphicalSymbols().add(mark);
                                break;
                            }
                        }
                    }
                }
            } else if (symbolizer instanceof PolygonSymbolizer) {
                List<Rule> rules = newFTS.rules();
                for( Rule rule : rules ) {
                    List<Symbolizer> newSymbolizers = rule.symbolizers();
                    for( Symbolizer newSymbolizer : newSymbolizers ) {
                        if (newSymbolizer instanceof PolygonSymbolizer) {
                            PolygonSymbolizer polygonSymbolizer = (PolygonSymbolizer ) newSymbolizer;
                            
                            Fill previousFill = SLDs.fill(polygonSymbolizer);
                            previousFill.setOpacity(ff.literal(opac));
                            
                            Stroke stroke = SLDs.stroke(polygonSymbolizer);
                            if (stroke != null) {
                                if(borderColor!=null){
                                    stroke.setColor(ff.literal(borderColor));

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        return style;
    }


    private Symbolizer createMapOverviewStyle(@Nonnull final StyleBuilder builder) {
        Stroke stroke = builder.createStroke(Color.blue, 2);
        final Fill fill = builder.createFill(Color.blue, 0.2);
        return builder.createPolygonSymbolizer(stroke, fill);
    }

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