Examples of org.geotools.styling.Stroke

org.geotools.styling.Stroke

l.opengeospatial.org/files/?artifact_id=1188"> OGC Styled-Layer Descriptor Report (OGC 02-070) version 1.0.0.:

 <xsd:element name="Stroke"> <xsd:annotation> <xsd:documentation> A "Stroke" specifies the appearance of a linear geometry.  It is defined in parallel with SVG strokes.  The following CssParameters may be used: "stroke" (color), "stroke-opacity", "stroke-width", "stroke-linejoin", "stroke-linecap", "stroke-dasharray", and "stroke-dashoffset". </xsd:documentation> </xsd:annotation> <xsd:complexType> <xsd:sequence> <xsd:choice minOccurs="0"> <xsd:element ref="sld:GraphicFill"/> <xsd:element ref="sld:GraphicStroke"/> </xsd:choice> <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.

@source $URL$ @version $Id$ @author James Macgill

        assertEquals(2.0, rm.getStroke().getWidth().evaluate(null, Double.class), 0d);
    }
    
    @Test
    public void testRescaleLocalUOM() throws Exception {
        Stroke original = sb.createStroke(Color.RED, 2, new float[] {5, 10});
        original.setWidth(ff.literal("2m"));
        original.accept(visitor);
        Stroke clone = (Stroke) visitor.getCopy();
        
        assertEquals("4m", clone.getWidth().evaluate(null, String.class));
    }

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        assertEquals("4m", clone.getWidth().evaluate(null, String.class));
    }
    
    @Test
    public void testRescaleLocalPixelInMetersSymbolizer() throws Exception {
        Stroke stroke = sb.createStroke(Color.RED, 2, new float[] {5, 10});
        stroke.setWidth(ff.literal("2px"));
        LineSymbolizer ls = sb.createLineSymbolizer(stroke);
        ls.setUnitOfMeasure(SI.METER);
        ls.accept(visitor);
        LineSymbolizer clone = (LineSymbolizer) visitor.getCopy();

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        assertEquals("4px", clone.getStroke().getWidth().evaluate(null, String.class));
    }
    
    @Test
    public void testRescaleLocalPixelInPixelSymbolizer() throws Exception {
        Stroke stroke = sb.createStroke(Color.RED, 2, new float[] {5, 10});
        stroke.setWidth(ff.literal("2px"));
        LineSymbolizer ls = sb.createLineSymbolizer(stroke);
        ls.accept(visitor);
        LineSymbolizer clone = (LineSymbolizer) visitor.getCopy();
        
        assertEquals("4", clone.getStroke().getWidth().evaluate(null, String.class));

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     * @return the created style.
     */
    public static Style createPolygonStyle() {


        // create a partially opaque outline stroke
        Stroke stroke = styleFactory.createStroke(filterFactory.literal(Color.BLUE), filterFactory.literal(1),
                filterFactory.literal(0.5));


        // create a partial opaque fill
        Fill fill = styleFactory.createFill(filterFactory.literal(Color.CYAN), filterFactory.literal(0.5));

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     * Create a default line style.
     * 
     * @return the created style.
     */
    public static Style createLineStyle() {
        Stroke stroke = styleFactory.createStroke(filterFactory.literal(Color.BLUE), filterFactory.literal(1));


        /*
         * Setting the geometryPropertyName arg to null signals that we want to
         * draw the default geomettry of features
         */

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        Fill notEq = sf.createFill(ff.literal("#FF0000"));
        assertEqualsContract(clone, notEq, fill);
    }


    public void testStroke() {
        Stroke stroke = sf.getDefaultStroke();
        Stroke clone = visitor.copy( stroke );
        assertCopy(stroke, clone);


        Stroke notEq = sf.createStroke(ff.literal("#FF0000"), ff
                .literal(10));
        assertEqualsContract(clone, notEq, stroke);


        // a stroke is a complex object with lots of properties,
        // need more extensive tests here.
        Stroke dashArray = sf.getDefaultStroke();
        dashArray.setDashArray(new float[] { 1.0f, 2.0f, 3.0f });


        Stroke dashArray2 = (Stroke) ((Cloneable)dashArray).clone();
        assertEqualsContract(dashArray, dashArray2);
    }

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        }


        for( GraphicalSymbol gs : graphic.graphicalSymbols() ) {
            if ((gs != null) && (gs instanceof Mark)) {
                Mark mark = (Mark) gs;
                Stroke stroke = mark.getStroke();
                if (stroke != null) {
                    Color colour = color(stroke);
                    if (colour == null) {
                        return null;
                    }
                    Expression opacity = stroke.getOpacity();
                    if (opacity == null)
                        opacity = ff.literal(1.0);
                    float alpha = (float) Filters.asDouble(opacity);
                    colour = new Color(colour.getRed() / 255f, colour.getGreen() / 255f, colour.getBlue() / 255f, alpha);
                    if (colour != null) {

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         * @param hints
         * @throws OperationNotSupportedException
         */
        public Object getValue( Element element, ElementValue[] value, Attributes attrs1, Map hints )
                throws OperationNotSupportedException {
            Stroke symbol = StyleFactoryFinder.createStyleFactory().getDefaultStroke();
    
            for (int i = 0; i < value.length; i++) {
                if ((value[i] == null) || value[i].getElement() == null) {
                    continue;
                }
    
                Element e = value[i].getElement();
                if(elems[GRAPHICFILL].getName().equals(e.getName()))
                    symbol.setGraphicFill((Graphic)value[i].getValue());
    
                if(elems[GRAPHICSTROKE].getName().equals(e.getName()))
                    symbol.setGraphicStroke((Graphic)value[i].getValue());
    
                if(elems[CSSPARAMETER].getName().equals(e.getName())){
                    Expression css = (Expression)value[i].getValue();
                    // TODO apply the css
                }

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         * @param hints
         * @throws OperationNotSupportedException
         */
        public Object getValue( Element element, ElementValue[] value, Attributes attrs1, Map hints )
                throws OperationNotSupportedException {
            Stroke symbol = StyleFactoryFinder.createStyleFactory().getDefaultStroke();


            for (int i = 0; i < value.length; i++) {
                if ((value[i] == null) || value[i].getElement() == null) {
                    continue;
                }


                Element e = value[i].getElement();
                if(elems[GRAPHICFILL].getName().equals(e.getName()))
                    symbol.setGraphicFill((Graphic)value[i].getValue());


                if(elems[CSSPARAMETER].getName().equals(e.getName())){
                    Expression css = (Expression)value[i].getValue();
                    // TODO apply the css
                }

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    /**
     * Create a Style to draw polygon features
     */
    private static Style createPolygonStyle(Color strokeColor, Color fillColor) {
        // create a partially opaque outline stroke
        Stroke stroke = styleFactory.createStroke(
                filterFactory.literal(strokeColor),
                filterFactory.literal(1),
                filterFactory.literal(0.5));


        // create a partial opaque fill

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