Examples of org.geotools.styling.visitor.RescaleStyleVisitor

org.geotools.styling.visitor.RescaleStyleVisitor
This is a style visitor that will produce a copy of the provided style rescaled by a provided factor.
The provided scale will be use to modify all line widths, font sizes and so forth. We may need to go the extra distance and play with the min/max scale on rules, and if there is any DPI specific madness going on we are going to cry.
According to the specification we are supposed to use environmental variables to make our styles render in a resolution independent manner. The current GeoTools environment variable visitor only does processing for mapscale but does not have a dpi substitution. On the plus side this visitor accepts a general Expression and you are free to use an environmental variable expression in order to make sure a normal base style is tweaked in all the right spots.
@author Jody Garnett (Refractions Research) @source $URL$

        double estimatedSize = estimator.getBuffer();
        Symbolizer rescaled = symbolizer;
        if (estimatedSize > w || estimatedSize > h) {
          // rescale necessary
          double scale = Math.min(w, h) / estimatedSize;
          RescaleStyleVisitor rescaler = new RescaleStyleVisitor(scale);
          rescaler.visit(symbolizer);
          rescaled = (Symbolizer) rescaler.getCopy();
        }
        Style2D style2d = styleFactory.createStyle(sample, rescaled, scaleRange);
        LiteShape2 shape = createShape(symbolizer, w, h);
        if (style2d != null) {
          STYLED_SHAPE_PAINTER.paint(g2d, shape, style2d, 1.0);

View Full Code Here

        Style style = this.styleSupplier.load(httpRequestFactory, source, mapContext);


        if (mapContext.isDpiSensitiveStyle() && mapContext.getDPI() > mapContext.getRequestorDPI()) {
            // rescale styles for a higher dpi print
            double scaleFactor = mapContext.getDPI() / mapContext.getRequestorDPI();
            RescaleStyleVisitor scale = new RescaleStyleVisitor(scaleFactor);
            style.accept(scale);
            style = (Style) scale.getCopy();
        }


        return Lists.newArrayList(new FeatureLayer(source, style));
    }

View Full Code Here

TOP

Related Classes of org.geotools.styling.visitor.RescaleStyleVisitor

org.geomajas.plugin.rasterizing.legend.RuleIcon

org.geotools.styling.Displacement

org.geotools.styling.Graphic

org.geotools.styling.LabelPlacement

org.geotools.styling.LinePlacement

org.geotools.styling.PointPlacement

org.geotools.styling.Stroke

org.geotools.styling.TextSymbolizer

org.mapfish.print.map.geotools.AbstractFeatureSourceLayer

org.opengis.filter.expression.Expression

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.