org.geotools.styling.StyleFactory Java Examples

private static Style createStyle(int band, double min, double max) {

		FilterFactory2 ff = CommonFactoryFinder.getFilterFactory2();
		StyleFactory sf = CommonFactoryFinder.getStyleFactory();

		RasterSymbolizer sym = sf.getDefaultRasterSymbolizer();
		ColorMap cMap = sf.createColorMap();
		ColorMapEntry start = sf.createColorMapEntry();
		start.setColor(ff.literal("#ff0000"));
		start.setQuantity(ff.literal(min));
		ColorMapEntry end = sf.createColorMapEntry();
		end.setColor(ff.literal("#0000ff"));
		end.setQuantity(ff.literal(max));

		cMap.addColorMapEntry(start);
		cMap.addColorMapEntry(end);
		sym.setColorMap(cMap);
		Style style = SLD.wrapSymbolizers(sym);

		return style;
	}
 

private static Rule makeFillRule() {
    final FilterFactory filterFactory = CommonFactoryFinder.getFilterFactory();
    final StyleFactory styleFactory = CommonFactoryFinder.getStyleFactory();

    // create a partially opaque outline stroke
    final Stroke stroke = styleFactory.createStroke(
            filterFactory.literal(Color.BLACK),
            filterFactory.literal(1),
            filterFactory.literal(.5)
    );

    // create a partially opaque fill
    Fill fill = styleFactory.createFill(
            filterFactory.literal(COLORS.next()),
            filterFactory.literal(.5)
    );

    // setting the geometryPropertyName arg to null signals that we want to draw the default geometry of features
    final PolygonSymbolizer sym = styleFactory.createPolygonSymbolizer(stroke, fill, null);

    final Rule rule = styleFactory.createRule();
    rule.symbolizers().add(sym);

    return rule;
}
 

/**
 * Creates a StyledLayerDescriptor object containing a SLD by reading the contents of a file.
 *
 * @param file the file
 * @return the styled layer descriptor
 */
public static StyledLayerDescriptor readSLDFile(File file) {
    StyledLayerDescriptor sld = null;

    if (file != null) {
        StyleFactory styleFactory = CommonFactoryFinder.getStyleFactory();
        try {
            // By using URL here allows external graphics to loaded properly
            URL url = file.toURI().toURL();
            SLDParser styleReader = new SLDParser(styleFactory, url);
            setResourcelocator(styleReader, file.toURI().toURL());
            sld = styleReader.parseSLD();
        } catch (IOException e) {
            ConsoleManager.getInstance().exception(SLDUtils.class, e);
        }
    }
    return sld;
}
 

@SuppressWarnings({"deprecation"})
private static Style createStyle() {
    StyleFactory styleFactory = CommonFactoryFinder.getStyleFactory(null);
    FilterFactory filterFactory = CommonFactoryFinder.getFilterFactory(null);
    PolygonSymbolizer symbolizer = styleFactory.createPolygonSymbolizer();
    Fill fill = styleFactory.createFill(
            filterFactory.literal("#FFAA00"),
            filterFactory.literal(0.5)
    );
    symbolizer.setFill(fill);
    Rule rule = styleFactory.createRule();
    rule.setSymbolizers(new Symbolizer[]{symbolizer});
    FeatureTypeStyle fts = styleFactory.createFeatureTypeStyle();
    fts.setRules(new Rule[]{rule});

    Style style = styleFactory.createStyle();
    style.addFeatureTypeStyle(fts);
    return style;
}
 

private static FeatureTypeStyle getDirectRasterStyle(
    final String geometryPropertyName,
    final Expression transformation) {
  final StyleFactory styleFactory = CommonFactoryFinder.getStyleFactory();
  final FeatureTypeStyle style = styleFactory.createFeatureTypeStyle();
  final Rule rule = styleFactory.createRule();
  rule.setName("distributed render - direct raster");
  rule.setTitle("Distributed Render - Direct Raster");

  final RasterSymbolizer symbolizer = styleFactory.createRasterSymbolizer();
  symbolizer.setGeometryPropertyName(geometryPropertyName);
  rule.symbolizers().add(symbolizer);
  style.rules().add(rule);
  style.setTransformation(transformation);
  return style;
}
 

private static Style createPolygonStyle() {
    final StyleFactory styleFactory = CommonFactoryFinder.getStyleFactory();
    final FilterFactory filterFactory = CommonFactoryFinder.getFilterFactory();

    // create a partially opaque outline stroke
    final Stroke stroke = styleFactory.createStroke(
            filterFactory.literal(Color.BLACK),
            filterFactory.literal(1),
            filterFactory.literal(.5)
    );

    // create a partially opaque fill
    final Fill fill = styleFactory.createFill(
            filterFactory.literal(COLORS.next()),
            filterFactory.literal(.5)
    );

    // setting the geometryPropertyName arg to null signals that we want to draw the default geometry of features
    final PolygonSymbolizer sym = styleFactory.createPolygonSymbolizer(stroke, fill, null);

    // make rule
    final Rule rule = styleFactory.createRule();
    rule.symbolizers().add(sym);

    final FeatureTypeStyle fts = styleFactory.createFeatureTypeStyle(new Rule[]{rule});
    final Style style = styleFactory.createStyle();
    style.getDescription().setTitle("Polygon Style");
    style.featureTypeStyles().add(fts);

    return style;
}
 

private static Style createPolygonStyle(final SimpleFeatureCollection features) {
    // get name based rule names
    final List<Rule> ruleList = new ArrayList<>();
    final Set<String> nameSet = new HashSet<>();

    // setup custom rules for polygons
    final SimpleFeatureIterator featureIterator = features.features();
    while (featureIterator.hasNext()) {
        final SimpleFeature feature = featureIterator.next();
        if (nameSet.add((String) feature.getAttribute(ATTRIBUTE))) {
            ruleList.add(makeFillRule(feature));
        }
    }

    // create a partially opaque outline stroke
    final Rule defaultRule = makeFillRule();
    defaultRule.setElseFilter(true);
    defaultRule.setName("Default Rule");
    ruleList.add(defaultRule);

    // Create rule defined style
    final Rule[] rules = ruleList.toArray(new Rule[ruleList.size()]);
    final StyleFactory styleFactory = CommonFactoryFinder.getStyleFactory();
    final FeatureTypeStyle featureTypeStyle = styleFactory.createFeatureTypeStyle(rules);

    final StyleBuilder builder = new StyleBuilder();
    final Style style = builder.createStyle();
    style.getDescription().setTitle("Polygon Style");
    style.featureTypeStyles().add(featureTypeStyle);

    return style;
}
 

private static Style createLineStyle() {
    final StyleFactory styleFactory = CommonFactoryFinder.getStyleFactory();
    final FilterFactory filterFactory = CommonFactoryFinder.getFilterFactory();

    // create a partially opaque outline stroke
    final Stroke stroke = styleFactory.createStroke(
            filterFactory.literal(Color.WHITE),
            filterFactory.literal(1),
            filterFactory.literal(.5)
    );

    // create a partially opaque fill
    final Fill fill = styleFactory.createFill(
            filterFactory.literal(Color.RED),
            filterFactory.literal(.25)
    );

    // setting the geometryPropertyName arg to null signals that we want to draw the default geometry of features
    final PolygonSymbolizer sym = styleFactory.createPolygonSymbolizer(stroke, fill, null);

    // make rule
    final Rule rule = styleFactory.createRule();
    rule.symbolizers().add(sym);

    final FeatureTypeStyle fts = styleFactory.createFeatureTypeStyle(new Rule[]{rule});
    final Style style = styleFactory.createStyle();
    style.getDescription().setTitle("Line Style");
    style.featureTypeStyles().add(fts);

    return style;
}
 

private static Style createPointStyle() {
    final StyleFactory styleFactory = CommonFactoryFinder.getStyleFactory();
    org.opengis.filter.FilterFactory filterFactory = CommonFactoryFinder.getFilterFactory();

    final Mark mark = styleFactory.getCircleMark();
    mark.setStroke(styleFactory.createStroke(filterFactory.literal(Color.BLUE), filterFactory.literal(1)));
    mark.setFill(styleFactory.createFill(filterFactory.literal(Color.CYAN)));

    final Graphic gr = styleFactory.getDefaultGraphic();
    gr.graphicalSymbols().clear();
    gr.graphicalSymbols().add(mark);
    gr.setSize(filterFactory.literal(5));

    // setting the geometryPropertyName arg to null signals that we want to draw the default geometry of features
    final PointSymbolizer sym = styleFactory.createPointSymbolizer(gr, null);

    // make rule
    final Rule rule = styleFactory.createRule();
    rule.symbolizers().add(sym);

    final FeatureTypeStyle fts = styleFactory.createFeatureTypeStyle(new Rule[]{rule});
    final Style style = styleFactory.createStyle();
    style.getDescription().setTitle("Point Style");
    style.featureTypeStyles().add(fts);

    return style;
}
 

/**
 * Creates a StyledLayerDescriptor object containing a SLD from a string.
 *
 * @param sldData the sld data
 * @return the styled layer descriptor
 */
public static StyledLayerDescriptor createSLDFromString(SLDDataInterface sldData) {
    if ((sldData == null) || (sldData.getSld() == null)) {
        return null;
    }

    StyleFactory styleFactory = CommonFactoryFinder.getStyleFactory();

    Charset fileEncoding = PrefManager.getInstance().getPrefData().getFileEncoding();

    InputStream stream = new ByteArrayInputStream(sldData.getSld().getBytes(fileEncoding));

    SLDParser styleReader = new SLDParser(styleFactory, stream);

    URL resourceLocator = getResourceLocator(sldData);

    sldData.setResourceLocator(resourceLocator);
    setResourcelocator(styleReader, resourceLocator);
    StyledLayerDescriptor sld = null;

    try {
        sld = styleReader.parseSLD();
    } catch (RuntimeException e) {
        String errorMessage =
                String.format("SLD Parser error : %s", sldData.getStyle().toString());
        ConsoleManager.getInstance().error(SLDUtils.class, errorMessage);
        ConsoleManager.getInstance().error(SLDUtils.class, e.getMessage());
    }

    return sld;
}
 

/**
 * Creates the graphic.
 *
 * @param url the url
 * @param styleFactory the style factory
 * @return the graphic
 */
private Graphic createGraphic(URL url, StyleFactory styleFactory) {
    List<GraphicalSymbol> symbolList = new ArrayList<GraphicalSymbol>();
    ExternalGraphic externalGraphic = styleFactory.createExternalGraphic(url, "image/png");
    symbolList.add(externalGraphic);
    Graphic graphicFill = styleFactory.graphicFill(symbolList, null, null, null, null, null);
    return graphicFill;
}
 

/**
 * Test method for {@link
 * com.sldeditor.ui.detail.config.symboltype.FieldConfigMarker#accept(org.opengis.style.GraphicalSymbol)}.
 */
@Test
public void testAccept() {
    boolean valueOnly = true;
    FieldConfigMarker field =
            new FieldConfigMarker(
                    new FieldConfigCommonData(
                            String.class, FieldIdEnum.NAME, "test label", valueOnly, false),
                    null,
                    null,
                    null);

    assertFalse(field.accept(null));

    StyleBuilder styleBuilder = new StyleBuilder();
    ExternalGraphicImpl externalGraphic =
            (ExternalGraphicImpl) styleBuilder.createExternalGraphic("test.tmp", "png");
    assertFalse(field.accept(externalGraphic));

    Mark marker = styleBuilder.createMark("triangle");
    assertFalse(field.accept(marker));

    List<ValueComboBoxData> dataList = new ArrayList<ValueComboBoxData>();

    dataList.add(new ValueComboBoxData("star", "Star", this.getClass()));
    dataList.add(new ValueComboBoxData("square", "Square", this.getClass()));
    dataList.add(new ValueComboBoxData("triangle", "Triangle", this.getClass()));

    List<ValueComboBoxDataGroup> groupList = new ArrayList<ValueComboBoxDataGroup>();
    groupList.add(new ValueComboBoxDataGroup(dataList));

    field.populateSymbolList(String.class, groupList);
    field.populateSymbolList(PointFillDetails.class, groupList);
    assertTrue(field.accept(marker));
    field.populateSymbolList(PointFillDetails.class, groupList);
    assertTrue(field.accept(marker));

    // Try some invalid values
    StyleFactory sf = CommonFactoryFinder.getStyleFactory();
    FilterFactory ff = CommonFactoryFinder.getFilterFactory();
    marker = sf.createMark();
    marker.setWellKnownName(ff.property("testproperty"));
    assertFalse(field.accept(marker));

    marker = sf.createMark();
    marker.setWellKnownName(ff.literal(12));
    assertFalse(field.accept(marker));
}
 

@Execute
public void viewCoverage() throws Exception {
    StyleFactory sf = CommonFactoryFinder.getStyleFactory(null);
    // RasterSymbolizer sym = sf.getDefaultRasterSymbolizer();
    // Style rasterStyle = SLD.wrapSymbolizers(sym);

    StyleBuilder sB = new StyleBuilder(sf);
    RasterSymbolizer rasterSym = sf.createRasterSymbolizer();

    ColorMap colorMap = sf.createColorMap();

    RenderedImage renderedImage = raster.getRenderedImage();
    double max = Double.NEGATIVE_INFINITY;
    double min = Double.POSITIVE_INFINITY;
    RectIter iter = RectIterFactory.create(renderedImage, null);
    do {
        do {
            double value = iter.getSampleDouble();
            if (value > max) {
                max = value;
            }
            if (value < min) {
                min = value;
            }
        } while( !iter.nextPixelDone() );
        iter.startPixels();
    } while( !iter.nextLineDone() );

    // red to blue
    Color fromColor = Color.blue;
    Color toColor = Color.red;
    Expression fromColorExpr = sB
            .colorExpression(new java.awt.Color(fromColor.getRed(), fromColor.getGreen(), fromColor.getBlue(), 255));
    Expression toColorExpr = sB
            .colorExpression(new java.awt.Color(toColor.getRed(), toColor.getGreen(), toColor.getBlue(), 255));
    Expression fromExpr = sB.literalExpression(min);
    Expression toExpr = sB.literalExpression(max);

    ColorMapEntry entry = sf.createColorMapEntry();
    entry.setQuantity(fromExpr);
    entry.setColor(fromColorExpr);
    colorMap.addColorMapEntry(entry);

    entry = sf.createColorMapEntry();
    entry.setQuantity(toExpr);
    entry.setColor(toColorExpr);
    colorMap.addColorMapEntry(entry);

    rasterSym.setColorMap(colorMap);

    Style rasterStyle = SLD.wrapSymbolizers(rasterSym);

    // Set up a MapContext with the two layers
    final MapContent map = new MapContent();
    map.setTitle("Coverage Viewer");
    map.addLayer(new GridCoverageLayer(raster, rasterStyle));

    // Create a JMapFrame with a menu to choose the display style for the
    final JMapFrame frame = new JMapFrame(map);
    frame.setSize(800, 600);
    frame.enableStatusBar(true);
    frame.enableTool(JMapFrame.Tool.ZOOM, JMapFrame.Tool.PAN, JMapFrame.Tool.RESET);
    frame.enableToolBar(true);
    frame.setVisible(true);
    frame.addWindowListener(new WindowAdapter(){
        public void windowClosing( WindowEvent e ) {
            frame.setVisible(false);
        }
    });

    while( frame.isVisible() ) {
        Thread.sleep(300);
    }
}
 

/**
 * Creates the test line.
 *
 * @param url the url
 * @return the styled layer descriptor
 */
private StyledLayerDescriptor createTestLine(URL url) {
    StyleBuilder sb = new StyleBuilder();
    StyleFactory styleFactory = sb.getStyleFactory();

    StyledLayerDescriptor sld = styleFactory.createStyledLayerDescriptor();

    NamedLayer namedLayer = styleFactory.createNamedLayer();

    sld.addStyledLayer(namedLayer);

    Style style = styleFactory.createStyle();
    namedLayer.addStyle(style);

    List<FeatureTypeStyle> ftsList = style.featureTypeStyles();

    FeatureTypeStyle fts = styleFactory.createFeatureTypeStyle();

    ftsList.add(fts);

    Rule rule = styleFactory.createRule();

    fts.rules().add(rule);

    LineSymbolizer line = styleFactory.createLineSymbolizer();

    rule.symbolizers().add(line);

    Graphic graphicFill = createGraphic(url, styleFactory);
    Graphic graphicStroke = createGraphic(url, styleFactory);

    Stroke stroke =
            styleFactory.createStroke(
                    null, null, null, null, null, null, null, graphicFill, graphicStroke);
    line.setStroke(stroke);

    return sld;
}
 

/**
 * Creates the test point.
 *
 * @param url the url
 * @return the styled layer descriptor
 */
private StyledLayerDescriptor createTestPoint(URL url) {
    StyleBuilder sb = new StyleBuilder();
    StyleFactory styleFactory = sb.getStyleFactory();

    StyledLayerDescriptor sld = styleFactory.createStyledLayerDescriptor();

    NamedLayer namedLayer = styleFactory.createNamedLayer();

    sld.addStyledLayer(namedLayer);

    Style style = styleFactory.createStyle();
    namedLayer.addStyle(style);

    List<FeatureTypeStyle> ftsList = style.featureTypeStyles();

    FeatureTypeStyle fts = styleFactory.createFeatureTypeStyle();

    ftsList.add(fts);

    Rule rule = styleFactory.createRule();

    fts.rules().add(rule);

    PointSymbolizer point = styleFactory.createPointSymbolizer();

    rule.symbolizers().add(point);

    Graphic graphic = createGraphic(url, styleFactory);

    point.setGraphic(graphic);

    return sld;
}
 

/**
 * Creates the test polygon.
 *
 * @param url the url
 * @return the styled layer descriptor
 */
private StyledLayerDescriptor createTestPolygon(URL url) {
    StyleBuilder sb = new StyleBuilder();
    StyleFactory styleFactory = sb.getStyleFactory();

    StyledLayerDescriptor sld = styleFactory.createStyledLayerDescriptor();

    NamedLayer namedLayer = styleFactory.createNamedLayer();

    sld.addStyledLayer(namedLayer);

    Style style = styleFactory.createStyle();
    namedLayer.addStyle(style);

    List<FeatureTypeStyle> ftsList = style.featureTypeStyles();

    FeatureTypeStyle fts = styleFactory.createFeatureTypeStyle();

    ftsList.add(fts);

    Rule rule = styleFactory.createRule();

    fts.rules().add(rule);

    PolygonSymbolizer polygon = styleFactory.createPolygonSymbolizer();

    rule.symbolizers().add(polygon);

    Graphic graphicFill1 = createGraphic(url, styleFactory);
    Graphic graphicFill2 = createGraphic(url, styleFactory);
    Graphic graphicStroke = createGraphic(url, styleFactory);
    Fill fill = styleFactory.createFill(null, null, null, graphicFill1);

    polygon.setFill(fill);

    Stroke stroke =
            styleFactory.createStroke(
                    null, null, null, null, null, null, null, graphicFill2, graphicStroke);
    polygon.setStroke(stroke);

    return sld;
}