Examples of org.geotools.styling.ExternalGraphic

org.geotools.styling.ExternalGraphic
l.opengeospatial.org/files/?artifact_id=1188"> OGC Styled-Layer Descriptor Report (OGC 02-070) version 1.0.0.:
```
 <xsd:element name="ExternalGraphic"> <xsd:annotation> <xsd:documentation> An "ExternalGraphic" gives a reference to an external raster or vector graphical object. </xsd:documentation> </xsd:annotation> <xsd:complexType> <xsd:sequence> <xsd:element ref="sld:OnlineResource"/> <xsd:element ref="sld:Format"/> </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 $Id$

            if (!g.graphicalSymbols().isEmpty()) {
                if (g.graphicalSymbols().get(0) instanceof Mark) {
                    Mark mark = (Mark) g.graphicalSymbols().get(0);
                    addMarkProperties(prefix, mark, props);
                } else if (g.graphicalSymbols().get(0) instanceof ExternalGraphic) {
                    ExternalGraphic exGraphic = (ExternalGraphic) g.graphicalSymbols().get(0);
                    addExternalGraphicProperties(prefix, exGraphic, props);
                }
            }
        }

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        checkSingleSymbolizer(style, ls);
    }
    
    @Test
    public void testDynamicSymbolizerStrokeLineSymbolizer() {
        ExternalGraphic dynamicSymbolizer = sb.createExternalGraphic("file://./${myAttribute}.jpeg", "image/jpeg");
        Graphic graphic = sb.createGraphic(dynamicSymbolizer, null, null);
        LineSymbolizer ls = sb.createLineSymbolizer();
        ls.getStroke().setGraphicStroke(graphic);


        Style style = sb.createStyle(ls);

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        checkSingleSymbolizer(style, ls);
    }
    
    @Test
    public void testStaticGraphicLineSymbolizer() {
        ExternalGraphic dynamicSymbolizer = sb.createExternalGraphic("file://./hello.jpeg", "image/jpeg");
        Graphic graphic = sb.createGraphic(dynamicSymbolizer, null, null);
        LineSymbolizer ls = sb.createLineSymbolizer();
        ls.getStroke().setGraphicStroke(graphic);


        Style style = sb.createStyle(ls);

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        }
        {
            FeatureTypeStyle fts = assumeSingleElement(result.featureTypeStyles());
            Rule rule = assumeSingleElement(fts.rules());
            PointSymbolizer symb = assertSingleElement(rule.symbolizers(), PointSymbolizer.class);
            ExternalGraphic eg = assertSingleElement(symb.getGraphic().graphicalSymbols(), ExternalGraphic.class);
            assertThat(eg.getOnlineResource().getLinkage().toString(), is("http://example.com/foo.png"));
        }
    }

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        }
        {
            FeatureTypeStyle fts = assumeSingleElement(result.featureTypeStyles());
            Rule rule = assumeSingleElement(fts.rules());
            PointSymbolizer symb = assertSingleElement(rule.symbolizers(), PointSymbolizer.class);
            ExternalGraphic eg = assertSingleElement(symb.getGraphic().graphicalSymbols(), ExternalGraphic.class);
            assertThat(eg.getOnlineResource().getLinkage().toString(), is("http://example.com/BC.png"));
        }
    }

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        }
        {
            FeatureTypeStyle fts = assumeSingleElement(result.featureTypeStyles());
            Rule rule = assumeSingleElement(fts.rules());
            PointSymbolizer symb = assertSingleElement(rule.symbolizers(), PointSymbolizer.class);
            ExternalGraphic eg = assertSingleElement(symb.getGraphic().graphicalSymbols(), ExternalGraphic.class);
            assertThat(eg.getOnlineResource().getLinkage().toString(), is("http://example.com/NF.png"));
        }
    }

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        }
        {
            FeatureTypeStyle fts = assumeSingleElement(result.featureTypeStyles());
            Rule rule = assertSingleElement(fts.rules());
            PointSymbolizer symb = assertSingleElement(rule.symbolizers(), PointSymbolizer.class);
            ExternalGraphic eg = assertSingleElement(symb.getGraphic().graphicalSymbols(), ExternalGraphic.class);
            assertThat(eg.getOnlineResource().getLinkage().toString(), is("http://example.com/foo.png"));
        }
    }

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        }
        {
            FeatureTypeStyle fts = assumeSingleElement(result.featureTypeStyles());
            Rule rule = assertSingleElement(fts.rules());
            PointSymbolizer symb = assertSingleElement(rule.symbolizers(), PointSymbolizer.class);
            ExternalGraphic eg = assertSingleElement(symb.getGraphic().graphicalSymbols(), ExternalGraphic.class);
            assertThat(eg.getOnlineResource().getLinkage().toString(), is("http://example.com/bar.png"));
        }
    }

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            float opacity, int size) {
                return SLD.pointSymbolizer(SLD.createPointStyle(name, stroke, fill, opacity, size));
            }


    protected final PointSymbolizer externalGraphic(String url, String format) {
        ExternalGraphic exGraphic = styleFactory.createExternalGraphic(url, format);
        Graphic graphic = styleFactory.createGraphic(new ExternalGraphic[] { exGraphic }, null, null, null, null, null);
        return styleFactory.createPointSymbolizer(graphic, null);
    }

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            // if the point symbolizer uses an external graphic use it
            if ((symbolizer.getGraphic() != null)
                    && (symbolizer.getGraphic().getExternalGraphics() != null)
                    && (symbolizer.getGraphic().getExternalGraphics().length > 0)) {
                ExternalGraphic graphic = symbolizer.getGraphic()
                        .getExternalGraphics()[0];


                try {
                    if ("file".equals(graphic.getLocation().getProtocol())) {
                        // it is a local file, reference locally from "styles"
                        // directory
                        File file = DataUtilities.urlToFile(graphic.getLocation());
                        File styles = null;
                        File graphicFile = null;
                        if(file.isAbsolute()) {
                            GeoServerDataDirectory dataDir = (GeoServerDataDirectory) GeoServerExtensions.bean("dataDirectory");
                            // we grab the canonical path to make sure we can compare them, no relative parts in them and so on
                            styles = dataDir.findOrCreateStyleDir().getCanonicalFile();
                            graphicFile = file.getCanonicalFile();
                            file = graphicFile;
                            if(file.getAbsolutePath().startsWith(styles.getAbsolutePath())) {
                                // ok, part of the styles directory, extract only the relative path
                                file = new File(file.getAbsolutePath().substring(styles.getAbsolutePath().length() + 1));
                            } else {
                                // we wont' transform this, other dirs are not published
                                file = null;
                            }
                        }
                        
                        if (file != null && styles != null) {
                            iconHref = ResponseUtils.buildURL(mapContext.getRequest().getBaseUrl(),
                                    "styles/" + styles.toURI().relativize(graphicFile.toURI()),
                                    null, URLType.RESOURCE);
                        }
                    } else if ("http".equals(graphic.getLocation()
                            .getProtocol())) {
                        iconHref = graphic.getLocation().toString();
                    } else {
                        // TODO: should we check for http:// and use it
                        // directly?
                        // other protocols?
                    }

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org.geoserver.kml.icons.IconPropertyInjectorTest

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org.geoserver.kml.KMLMapTransformer$KMLMapTranslatorSupport

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