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

        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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    }
    protected LineSymbolizer createLineSymbolizer( Color colour, boolean dashed, int thickness,
            double opacity ) {
        LineSymbolizer symbolizer = styleBuilder.createLineSymbolizer();


        Stroke stroke = builder.createStroke(colour, thickness, opacity);
        // if( dashed ){
        // stroke.setDashArray(new float[]{5, 3});
        // }
        symbolizer.setStroke(stroke);

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                graphic.accept(this);
            }
        }


        public void visit( LineSymbolizer line ) {
            Stroke stroke = line.getStroke();
            if (stroke != null) {
                stroke.accept(this);
            }
        }

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                stroke.accept(this);
            }
        }


        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 applyBorder( PolygonSymbolizer polygonSymbolizer, StyleBuilder styleBuilder ) {
        if (borderEnabled.getSelection()) {
            RGB c = borderColour.getColorValue();
            Stroke stroke = polygonSymbolizer.getStroke();
            if (stroke == null) {
                stroke = styleBuilder.createStroke();
                polygonSymbolizer.setStroke(stroke);
            }


            stroke.setColor(styleBuilder.colorExpression(new Color(c.red, c.green, c.blue)));
            stroke.setWidth(styleBuilder.literalExpression(borderWidth.getSelection()));
            stroke.setOpacity(styleBuilder.literalExpression(borderOpacity.getSelection()
                    / opacityMaxValueFloat));
        } else {
            polygonSymbolizer.setStroke(null);
        }
    }

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                            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)) {
                        return; //don't bother, same colour
                    }

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        return true;
    }
    
    /** Grab to Stroke from the lineSymbolizer creating if needed */
    Stroke toStroke( LineSymbolizer lineSymbolizer ){        
        Stroke stroke = SLDs.stroke( lineSymbolizer );
        if( stroke == null ){
            stroke = sb.createStroke();
            lineSymbolizer.setStroke( stroke );
        }
        return stroke;

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                size.setInput( Expression.NIL );
                color.getControl().setEnabled(false);
                color.setInput( Expression.NIL );
                return;
            }
            Stroke stroke = lineSymbolizer.getStroke();            
            if( stroke == null ){
                // no stroke? kind of like width == 0
                size.setInput( Expression.NIL );
                color.setInput( Expression.NIL );
            }
            size.setInput( stroke.getWidth() );
            size.getControl().setEnabled(true);
            color.setInput( stroke.getColor() );
            color.getControl().setEnabled(true);
        }
        finally {
            listen( true );
        }

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                                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));
                                }else{
                                    polygonSymbolizer.setStroke(null);
                                }
                            }

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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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