Mercurial > dive4elements > gnv-client
comparison gnv-artifacts/src/main/java/de/intevation/gnv/exports/ChartExportHelper.java @ 617:3d13fa281a7e
Added new ouput mode: histogram.
gnv-artifacts/trunk@688 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Mon, 15 Feb 2010 11:44:01 +0000 |
parents | a88e15972c72 |
children | 65f09139e9b3 |
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616:93978859fa9e | 617:3d13fa281a7e |
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7 import com.lowagie.text.pdf.PdfContentByte; | 7 import com.lowagie.text.pdf.PdfContentByte; |
8 import com.lowagie.text.pdf.PdfTemplate; | 8 import com.lowagie.text.pdf.PdfTemplate; |
9 import com.lowagie.text.pdf.PdfWriter; | 9 import com.lowagie.text.pdf.PdfWriter; |
10 | 10 |
11 import java.awt.Transparency; | 11 import java.awt.Transparency; |
12 import java.awt.Graphics; | |
12 import java.awt.Graphics2D; | 13 import java.awt.Graphics2D; |
14 import java.awt.geom.Point2D; | |
13 import java.awt.geom.Rectangle2D; | 15 import java.awt.geom.Rectangle2D; |
14 import java.awt.geom.Rectangle2D.Double; | 16 import java.awt.geom.Rectangle2D.Double; |
17 import java.awt.image.BufferedImage; | |
15 import java.io.OutputStream; | 18 import java.io.OutputStream; |
16 import java.io.OutputStreamWriter; | 19 import java.io.OutputStreamWriter; |
17 import java.io.IOException; | 20 import java.io.IOException; |
18 import java.io.UnsupportedEncodingException; | 21 import java.io.UnsupportedEncodingException; |
19 import javax.imageio.ImageIO; | 22 import javax.imageio.ImageIO; |
23 import org.apache.log4j.Logger; | 26 import org.apache.log4j.Logger; |
24 | 27 |
25 import org.jfree.chart.JFreeChart; | 28 import org.jfree.chart.JFreeChart; |
26 | 29 |
27 import de.intevation.artifactdatabase.XMLUtils; | 30 import de.intevation.artifactdatabase.XMLUtils; |
31 import de.intevation.gnv.chart.Chart; | |
28 | 32 |
29 | 33 |
30 /** | 34 /** |
31 * @author Ingo Weinzierl <ingo.weinzierl@intevation.de> | 35 * @author Ingo Weinzierl <ingo.weinzierl@intevation.de> |
32 */ | 36 */ |
53 width, height, Transparency.BITMASK, null | 57 width, height, Transparency.BITMASK, null |
54 ), | 58 ), |
55 format, | 59 format, |
56 out | 60 out |
57 ); | 61 ); |
62 } | |
63 | |
64 | |
65 public static void exportHistograms( | |
66 OutputStream out, | |
67 Chart[] histograms, | |
68 String format, | |
69 int width, | |
70 int height) | |
71 throws IOException | |
72 { | |
73 log.info("export histograms"); | |
74 | |
75 int size = histograms.length; | |
76 BufferedImage image = new BufferedImage( | |
77 width, height*size, BufferedImage.TYPE_INT_RGB); | |
78 Graphics2D g = image.createGraphics(); | |
79 | |
80 for (int i = 0; i < size; i++) { | |
81 JFreeChart chart = histograms[i].generateChart(); | |
82 chart.draw(g, new Rectangle2D.Double(0.0D, i*height, width, height)); | |
83 } | |
84 g.finalize(); | |
85 | |
86 ImageIO.write(image, format, out); | |
58 } | 87 } |
59 | 88 |
60 | 89 |
61 public static void exportSVG( | 90 public static void exportSVG( |
62 OutputStream out, | 91 OutputStream out, |