Mercurial > dive4elements > gnv-client
comparison gnv-artifacts/src/main/java/de/intevation/gnv/exports/ChartExportHelper.java @ 639:a94ed2755480
Implemented SVG export for histograms.
gnv-artifacts/trunk@724 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
|---|---|
| date | Tue, 02 Mar 2010 14:48:32 +0000 |
| parents | 65f09139e9b3 |
| children | e5f1e868ee3e |
comparison
equal
deleted
inserted
replaced
| 638:c580666a843f | 639:a94ed2755480 |
|---|---|
| 87 chart.draw(g, new Rectangle2D.Double(0.0D, i*height, width, height)); | 87 chart.draw(g, new Rectangle2D.Double(0.0D, i*height, width, height)); |
| 88 } | 88 } |
| 89 g.finalize(); | 89 g.finalize(); |
| 90 | 90 |
| 91 ImageIO.write(image, format, out); | 91 ImageIO.write(image, format, out); |
| 92 } | |
| 93 | |
| 94 | |
| 95 public static void exportHistogramsAsSVG( | |
| 96 OutputStream out, | |
| 97 Chart[] histograms, | |
| 98 String encoding, | |
| 99 int width, | |
| 100 int height | |
| 101 ) { | |
| 102 log.info("export histograms as svg"); | |
| 103 | |
| 104 if (encoding == null) | |
| 105 encoding = DEFAULT_ENCODING; | |
| 106 | |
| 107 org.w3c.dom.Document document = XMLUtils.newDocument(); | |
| 108 SVGGraphics2D graphics = new SVGGraphics2D(document); | |
| 109 | |
| 110 int size = histograms.length; | |
| 111 for (int i = 0; i < size; i++) { | |
| 112 JFreeChart chart = histograms[i].generateChart(); | |
| 113 chart.draw(graphics, new Rectangle2D.Double( | |
| 114 0.0D, i*height,width,height)); | |
| 115 } | |
| 116 graphics.finalize(); | |
| 117 | |
| 118 try { | |
| 119 graphics.stream(new OutputStreamWriter(out, encoding)); | |
| 120 } | |
| 121 catch (SVGGraphics2DIOException svge) { | |
| 122 log.error("Error while writing svg export to output stream.", svge); | |
| 123 } | |
| 124 catch (UnsupportedEncodingException uee) { | |
| 125 log.error("Unsupported encoding: " + encoding, uee); | |
| 126 } | |
| 92 } | 127 } |
| 93 | 128 |
| 94 | 129 |
| 95 public static void exportSVG( | 130 public static void exportSVG( |
| 96 OutputStream out, | 131 OutputStream out, |