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Java > Open Source Codes > de > progra > charting > test > TestChart


1 /*
2     JOpenChart Java Charting Library and Toolkit
3     Copyright (C) 2001 Sebastian Müller
4     http://jopenchart.sourceforge.net
5
6     This library is free software; you can redistribute it and/or
7     modify it under the terms of the GNU Lesser General Public
8     License as published by the Free Software Foundation; either
9     version 2.1 of the License, or (at your option) any later version.
10
11     This library is distributed in the hope that it will be useful,
12     but WITHOUT ANY WARRANTY; without even the implied warranty of
13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14     Lesser General Public License for more details.
15
16     You should have received a copy of the GNU Lesser General Public
17     License along with this library; if not, write to the Free Software
18     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19
20     TestChart.java
21     Created on 19. Oktober 2001, 16:34
22  */

23
24 package de.progra.charting.test;
25
26 import de.progra.charting.*;
27 import de.progra.charting.model.*;
28 import de.progra.charting.render.*;
29 import java.awt.*;
30 import java.awt.geom.*;
31 import java.io.*;
32 import java.text.*;
33 import java.awt.geom.AffineTransform JavaDoc;
34
35 /**
36  * This class is used to test the Charting package.
37  * @author mueller
38  * @version 1.0
39  */

40 public class TestChart {
41     
42     /** Creates new TestChart */
43     public TestChart() {
44     }
45     
46     
47     /** Used to create multiple charts for testing purposes in $USERHOME.
48      * @param args empty
49      */

50     public static void main(String JavaDoc[] args) {
51         makeSimpleLineTest();
52         makeRadarTest();
53         makeDiffSizedBarChartTest();
54         makeBarChartFormatTest();
55         makeAxisTitleTest();
56         
57         makeNevilleTest();
58         
59         makeSimplePieTest();
60         makeLineChartTest();
61         makePlotTest();
62         makePlot2Test();
63         makeBarTest();
64         makeStackedBarTest();
65         
66         makeManualBarTest();
67         makeSimpleNegativeLineTest();
68         
69         System.exit(0);
70     }
71     
72     public static void makeAxisTitleTest() {
73         System.out.println("** Creating Bar Chart Plot with Axis Titles.");
74         int[][] model = {{23, 43, 12},
75         {54, -15, 34},
76         {99, 32, 45}};
77         
78         String JavaDoc[] columns = {"1997", "1998", "1999"};
79         
80         String JavaDoc[] rows = {"foobar.com", "@foo Ltd.", "bar.online"};
81         
82         String JavaDoc title = "Average Growth 1997 - 1999";
83         
84         int width = 640;
85         int height = 480;
86         
87         ObjectChartDataModel data = new ObjectChartDataModel(model, columns, rows);
88         DefaultChart c = new DefaultChart(data, title, DefaultChart.LINEAR_X_LINEAR_Y, "Year", "Growth");
89         c.addChartRenderer(new BarChartRenderer(c.getCoordSystem(),
90                             data), 1);
91         c.setBounds(new Rectangle(0, 0, width, height));
92         try {
93             ChartEncoder.createPNG(new FileOutputStream(System.getProperty("user.home")+"/axistest.png"), c);
94         } catch(EncodingException e) {
95             System.out.println("** Error creating the axistest.png file, showing the bar chart.");
96             e.getCause().printStackTrace();
97             return;
98         } catch(Exception JavaDoc e) {
99             System.out.println("** Error creating the axistest.png file, showing the bar chart.");
100             e.printStackTrace();
101             return;
102         }
103         System.out.println("successfull.");
104     }
105     
106     public static void makeRadarTest() {
107         System.out.println("** Creating Radar Chart Plot.");
108         int[][] model = {{23, 43, 12, 19, 12},
109         {54, 20, 34, 40, 67},
110         {15, 30, 8, 17, 23},
111         {85, 15, 10, 26, 54}};
112         
113         String JavaDoc[] columns = {"1997", "1998", "1999", "2000", "2001"};
114         
115         String JavaDoc[] rows = {"foobar.com", "@foo Ltd.", "bar.online", "foo.co.uk"};
116         
117         String JavaDoc title = "Average Growth 1997 - 2001";
118         
119         int width = 640;
120         int height = 480;
121         
122         ObjectChartDataModel data = new ObjectChartDataModel(model, columns, rows);
123         DefaultChart c = new DefaultChart(data, title);
124         c.addChartRenderer(new RadarChartRenderer(data), 1);
125         c.setBounds(new Rectangle(0, 0, width, height));
126         
127         try {
128             ChartEncoder.createPNG(new FileOutputStream(System.getProperty("user.home")+"/radartest.png"), c);
129         } catch(EncodingException e) {
130             System.out.println("** Error creating the radartest.png file, showing the radar chart.");
131             e.getCause().printStackTrace();
132             return;
133         } catch(Exception JavaDoc e) {
134             System.out.println("** Error creating the radartest.png file, showing the radar chart.");
135             e.printStackTrace();
136             return;
137         }
138         System.out.println("successfull.");
139     }
140     
141     public static void makeBarChartFormatTest() {
142         System.out.println("** Creating Bar Chart Plot.");
143         int[][] model = {{23, 43, 12},
144         {54, -15, 34},
145         {99, 32, 45}};
146         
147         String JavaDoc[] columns = {"1997", "1998", "1999"};
148         
149         String JavaDoc[] rows = {"foobar.com", "@foo Ltd.", "bar.online"};
150         
151         String JavaDoc title = "Average Growth 1997 - 1999";
152         
153         int width = 640;
154         int height = 480;
155         
156         ObjectChartDataModel data = new ObjectChartDataModel(model, columns, rows);
157         DefaultChart c = new DefaultChart(data, title, DefaultChart.LINEAR_X_LINEAR_Y, "Year", "Growth");
158         /*CoordSystem cs, ChartDataModel model, RowColorModel rcm,
159             DecimalFormat topFormat, Font topFont, float boxWidth
160         */

161         c.setCoordSystem(new CoordSystem(data, new DecimalFormat(), false, true, false));
162         c.addChartRenderer(new BarChartRenderer(c.getCoordSystem(),
163                             data, new DecimalFormat(), new Font("sans", Font.ITALIC, 9), 1.0f), 1);
164         c.setBounds(new Rectangle(0, 0, width, height));
165         try {
166             ChartEncoder.createPNG(new FileOutputStream(System.getProperty("user.home")+"/barchart2test.png"), c);
167         } catch(EncodingException e) {
168             System.out.println("** Error creating the barchart2test.png file, showing the bar chart.");
169             e.getCause().printStackTrace();
170             return;
171         } catch(Exception JavaDoc e) {
172             System.out.println("** Error creating the barchart2test.png file, showing the bar chart.");
173             e.printStackTrace();
174             return;
175         }
176         System.out.println("successfull.");
177     }
178     
179     public static void makeSimpleLineTest() {
180         System.out.println("** Creating Simple Line Test.");
181         int[][] model = {{-200000, 0, 100, 200000}};
182         
183         double[] columns = {-100, 0.0, 1.0, 2000.0};
184         
185         String JavaDoc[] rows = {"f(x) = x^3"};
186         
187         String JavaDoc title = "Neville Interpolation";
188         
189         int width = 640;
190         int height = 480;
191         
192         DefaultChartDataModel data = new DefaultChartDataModel(model, columns, rows);
193         /*
194         data.setManualScale(true);
195         data.setMaximumValue(new Integer(200000));
196         data.setMinimumValue(new Integer(-10));
197         data.setMaximumColumnValue(500.0);
198         data.setMinimumColumnValue(-10.0);
199         */

200         DefaultChart c = new DefaultChart(data, title, DefaultChart.LINEAR_X_LINEAR_Y);
201         c.addChartRenderer(new PlotChartRenderer(c.getCoordSystem(), data), 1);
202         
203         c.setBounds(new Rectangle(0, 0, width, height));
204         
205         try {
206             ChartEncoder.createEncodedImage(new FileOutputStream(System.getProperty("user.home")+"/linetest.png"), c, "png");
207         } catch(EncodingException e) {
208             System.out.println("** Error creating the linetest.png file, showing the simple line chart.");
209             e.getCause().printStackTrace();
210             return;
211         } catch(Exception JavaDoc e) {
212             System.out.println("** Error creating the linetest.png file, showing the simple line chart.");
213             e.printStackTrace();
214             return;
215         }
216         System.out.println("successfull.");
217     }
218     
219     public static void makeNevilleTest() {
220         System.out.println("** Creating Neville Interpolation Test.");
221         int[][] model = {{-8, 0, 1, 8}};
222         
223         double[] columns = {-2.0, 0.0, 1.0, 2.0};
224         
225         String JavaDoc[] rows = {"f(x) = x^3"};
226         
227         String JavaDoc title = "Neville Interpolation";
228         
229         int width = 640;
230         int height = 480;
231         
232         DefaultChartDataModel data = new DefaultChartDataModel(model, columns, rows);
233         data.setAutoScale(true);
234         DefaultChart c = new DefaultChart(data, title, DefaultChart.LINEAR_X_LINEAR_Y);
235         c.addChartRenderer(new LineChartRenderer(c.getCoordSystem(), data), 1);
236         
237         c.addChartRenderer(new PlotChartRenderer(c.getCoordSystem(), data), 2);
238         
239         c.addChartRenderer(new InterpolationChartRenderer(c.getCoordSystem(), data), 3);
240         c.setBounds(new Rectangle(0, 0, width, height));
241         
242         try {
243             ChartEncoder.createEncodedImage(new FileOutputStream(System.getProperty("user.home")+"/nevilletest.png"), c, "png");
244         } catch(EncodingException e) {
245             System.out.println("** Error creating the nevilletest.png file, showing the Neville Interpolation.");
246             e.getCause().printStackTrace();
247             return;
248         } catch(Exception JavaDoc e) {
249             System.out.println("** Error creating the nevilletest.png file, showing the Neville Interpolation.");
250             e.printStackTrace();
251             return;
252         }
253         System.out.println("successfull.");
254     }
255     
256     public static void makeSimplePieTest() {
257         System.out.println("** Creating Pie Chart Test.");
258         int[][] model = {{23, 43, 12},
259         {54, -15, 34},
260         {99, 32, 45}};
261         
262         String JavaDoc[] columns = {"1997", "1998", "1999"};
263         
264         String JavaDoc[] rows = {"foobar.com", "@foo Ltd.", "bar.online"};
265         
266         String JavaDoc title = "Average Growth 1997 - 1999";
267         
268         int width = 640;
269         int height = 480;
270         
271         ObjectChartDataModel data = new ObjectChartDataModel(model, columns, rows);
272         DefaultChart c = new DefaultChart(data, title);
273         c.addChartRenderer(new PieChartRenderer(data), 1);
274         c.setBounds(new Rectangle(0, 0, width, height));
275         try {
276             ChartEncoder.createPNG(new FileOutputStream(System.getProperty("user.home")+"/simplepie.png"), c);
277         } catch(EncodingException e) {
278             System.out.println("** Error creating the simple.png file, showing the pie chart.");
279             e.getCause().printStackTrace();
280             return;
281         } catch(Exception JavaDoc e) {
282             System.out.println("** Error creating the simplepie.png file, showing the pie chart.");
283             e.printStackTrace();
284         }
285         System.out.println("successfull.");
286     }
287     
288     public static void makeLineChartTest() {
289         System.out.println("** Creating Line Chart Test.");
290         
291         int[] quadr = {0, 1, 4, 9, 16, 25, 36};
292         int[] exp = {1, 2, 4, 8, 16, 32, 64};
293         double[] columns = {0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0};
294         
295         DefaultDataSet[] ds = new DefaultDataSet[3];
296         ds[0] = new DefaultDataSet(ChartUtilities.transformArray(new int[] {0, 6}),
297                                    ChartUtilities.transformArray(new double[] {0.0, 6.0}),
298                                    CoordSystem.FIRST_YAXIS,
299                                    "Linear Growth");
300         ds[1] = new DefaultDataSet(ChartUtilities.transformArray(quadr),
301                                    ChartUtilities.transformArray(columns),
302                                    CoordSystem.FIRST_YAXIS,
303                                    "Quadratic Growth");
304         
305         ds[2] = new DefaultDataSet(ChartUtilities.transformArray(exp),
306                                    ChartUtilities.transformArray(columns),
307                                    CoordSystem.FIRST_YAXIS,
308                                    "Exponential Growth");
309         
310         String JavaDoc title = "Growth Factor Comparison";
311         
312         int width = 640;
313         int height = 480;
314         
315         DefaultChartDataModel data = new DefaultChartDataModel(ds);
316         
317         // Look at the next 3 lines:
318
data.setAutoScale(true);
319         DefaultChart c = new DefaultChart(data, title, DefaultChart.LINEAR_X_LINEAR_Y);
320         c.addChartRenderer(new LineChartRenderer(c.getCoordSystem(),
321                            data), 1);
322         
323         c.setBounds(new Rectangle(0, 0, width, height));
324         
325         
326         try {
327             ChartEncoder.createPNG(new FileOutputStream(System.getProperty("user.home")+"/simpleline.png"), c);
328         } catch(EncodingException e) {
329             System.out.println("** Error creating the simpleline.png file, showing the line chart.");
330             e.getCause().printStackTrace();
331             return;
332         } catch(Exception JavaDoc e) {
333             System.out.println("** Error creating the simpleline.png file, showing the line chart.");
334             e.printStackTrace();
335             return;
336         }
337         System.out.println("successfull.");
338     }
339     
340     public static void makeDiffSizedBarChartTest() {
341         System.out.println("** Creating Bar Chart Test with different sized DataSets.");
342         
343         int[] quadr = {0, 1, 4, 9, 16, 25, 36};
344         int[] exp = {1, 2, 4, 8, 16, 32, 64};
345         String JavaDoc[] columns = {"0", "1", "2", "3", "4", "5", "6"};
346         
347         DefaultDataSet[] ds = new DefaultDataSet[3];
348         ds[0] = new DefaultDataSet(ChartUtilities.transformArray(new int[] {0, 6}),
349                                    new String JavaDoc[] {"0", "6"},
350                                    CoordSystem.FIRST_YAXIS,
351                                    "Linear Growth");
352         ds[1] = new DefaultDataSet(ChartUtilities.transformArray(quadr),
353                                    columns,
354                                    CoordSystem.FIRST_YAXIS,
355                                    "Quadratic Growth");
356         
357         ds[2] = new DefaultDataSet(ChartUtilities.transformArray(exp),
358                                    columns,
359                                    CoordSystem.FIRST_YAXIS,
360                                    "Exponential Growth");
361         
362         String JavaDoc title = "Growth Factor Comparison";
363         
364         int width = 640;
365         int height = 480;
366         
367         ObjectChartDataModel data = new ObjectChartDataModel(ds, columns);
368
369         // Look at the next 3 lines:
370
//data.setAutoScale(true);
371
DefaultChart c = new DefaultChart(data, title, DefaultChart.LINEAR_X_LINEAR_Y, "x", "y");
372         c.addChartRenderer(new LineChartRenderer(c.getCoordSystem(),
373                            data), 1);
374         
375         c.setBounds(new Rectangle(0, 0, width, height));
376         
377         
378         try {
379             ChartEncoder.createPNG(new FileOutputStream(System.getProperty("user.home")+"/objectbarchart.png"), c);
380         } catch(EncodingException e) {
381             System.out.println("** Error creating the objectbarchart.png file, showing the line chart.");
382             e.getCause().printStackTrace();
383             return;
384         } catch(Exception JavaDoc e) {
385             System.out.println("** Error creating the objectbarchart.png file, showing the line chart.");
386             e.printStackTrace();
387             return;
388         }
389         System.out.println("successfull.");
390     }
391     
392     public static void makePlotTest() {
393         System.out.println("** Creating Function Plot.");
394         String JavaDoc title = "Plotting x^3";
395         
396         int width = 640;
397         int height = 480;
398         
399         DefaultChartDataModel data = FunctionPlotter.createChartDataModelInstance(-10, 10, 2000, "1/x");
400         data.setAutoScale(true);
401         DefaultChart c = new DefaultChart(data, title, DefaultChart.LINEAR_X_LINEAR_Y);
402         c.addChartRenderer(new LineChartRenderer(c.getCoordSystem(),
403                            data), 1);
404         
405         c.setBounds(new Rectangle(0, 0, width, height));
406         try {
407             ChartEncoder.createPNG(new FileOutputStream(System.getProperty("user.home")+"/plottest.png"), c);
408         } catch(EncodingException e) {
409             System.out.println("** Error creating the plottest.png file, showing the function plot.");
410             e.getCause().printStackTrace();
411             return;
412         } catch(Exception JavaDoc e) {
413             System.out.println("** Error creating the plottest.png file, showing the function plot.");
414             e.printStackTrace();
415             return;
416         }
417         System.out.println("successfull.");
418     }
419     
420     public static void makePlot2Test() {
421         System.out.println("** Creating Plot Chart Test.");
422         
423         double[] quadr = {0.0, 1.0, 4.0, 9.0, 16.0, 25.0, 36.0};
424         double[] exp = {1.0, 2.0, 4.0, 8.0, 16.0, 32.0, 64.0};
425         double[] log = {0.0, Math.log(1.0), Math.log(2.0), Math.log(3.0), Math.log(4.0), Math.log(5.0), Math.log(6.0)};
426         double[] sqrt = {0.0, Math.sqrt(1.0), Math.sqrt(2.0), Math.sqrt(3.0), Math.sqrt(4.0), Math.sqrt(5.0), Math.sqrt(6.0)};
427         double[] columns = {0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0};
428         
429         DefaultDataSet[] ds = new DefaultDataSet[5];
430         ds[0] = new DefaultDataSet(ChartUtilities.transformArray(new double[] {0.0, 6.0}),
431                                    ChartUtilities.transformArray(new double[] {0.0, 6.0}),
432                                    CoordSystem.FIRST_YAXIS,
433                                    "Linear Growth");
434         ds[1] = new DefaultDataSet(ChartUtilities.transformArray(quadr),
435                                    ChartUtilities.transformArray(columns),
436                                    CoordSystem.FIRST_YAXIS,
437                                    "Quadratic Growth");
438         
439         ds[2] = new DefaultDataSet(ChartUtilities.transformArray(exp),
440                                    ChartUtilities.transformArray(columns),
441                                    CoordSystem.FIRST_YAXIS,
442                                    "Exponential Growth");
443         
444         
445         ds[3] = new DefaultDataSet(ChartUtilities.transformArray(log),
446                                    ChartUtilities.transformArray(columns),
447                                    CoordSystem.FIRST_YAXIS,
448                                    "Logarithmic Growth");
449         
450         
451         ds[4] = new DefaultDataSet(ChartUtilities.transformArray(sqrt),
452                                    ChartUtilities.transformArray(columns),
453                                    CoordSystem.FIRST_YAXIS,
454                                    "Square Root Growth");
455         
456         String JavaDoc title = "Growth Factor Comparison";
457         
458         int width = 640;
459         int height = 480;
460         
461         DefaultChartDataModel data = new DefaultChartDataModel(ds);
462         
463         // Look at the next 3 lines:
464
data.setAutoScale(true);
465         DefaultChart c = new DefaultChart(data, title, DefaultChart.LINEAR_X_LINEAR_Y);
466         c.addChartRenderer(new PlotChartRenderer(c.getCoordSystem(), data), 1);
467         
468         c.setBounds(new Rectangle(0, 0, width, height));
469         
470         try {
471             ChartEncoder.createPNG(new FileOutputStream(System.getProperty("user.home")+"/secondplot.png"), c);
472         } catch(EncodingException e) {
473             System.out.println("** Error creating the secondplot.png file, showing the plot chart.");
474             e.getCause().printStackTrace();
475             return;
476         } catch(Exception JavaDoc e) {
477             System.out.println("** Error creating the secondplot.png file, showing the second plot chart.");
478             e.printStackTrace();
479             return;
480         }
481         System.out.println("successfull.");
482     }
483     
484     public static void makeBarTest() {
485         System.out.println("** Creating Bar Chart Plot.");
486         int[][] model = {{23, 43, 12},
487         {54, -15, 34},
488         {99, 32, 45}};
489         
490         String JavaDoc[] columns = {"1997", "1998", "1999"};
491         
492         String JavaDoc[] rows = {"foobar.com", "@foo Ltd.", "bar.online"};
493         
494         String JavaDoc title = "Average Growth 1997 - 1999";
495         
496         int width = 640;
497         int height = 480;
498         
499         ObjectChartDataModel data = new ObjectChartDataModel(model, columns, rows);
500         DefaultChart c = new DefaultChart(data, title, DefaultChart.LINEAR_X_LINEAR_Y);
501         c.addChartRenderer(new BarChartRenderer(c.getCoordSystem(),
502                             data), 1);
503         c.setBounds(new Rectangle(0, 0, width, height));
504         try {
505             ChartEncoder.createPNG(new FileOutputStream(System.getProperty("user.home")+"/simplebar.png"), c);
506         } catch(EncodingException e) {
507             System.out.println("** Error creating the simplebar.png file, showing the bar chart.");
508             e.getCause().printStackTrace();
509             return;
510         } catch(Exception JavaDoc e) {
511             System.out.println("** Error creating the simplebar.png file, showing the bar chart.");
512             e.printStackTrace();
513             return;
514         }
515         System.out.println("successfull.");
516     }
517     
518     public static void makeStackedBarTest() {
519         System.out.println("** Creating Stacked Bar Chart Plot.");
520         int[][] model = {{23, 43, 12, 5, 20},
521         {54, -15, 34, 40, 45},
522         {99, -10, 45, -10, -25}};
523         
524         String JavaDoc[] columns = {"1997", "1998", "1999", "2000", "2001"};
525         
526         String JavaDoc[] rows = {"foobar.com", "@foo Ltd.", "bar.online"};
527         
528         String JavaDoc title = "Profit Shares 1997 - 2001";
529         
530         int width = 640;
531         int height = 480;
532         
533         ObjectChartDataModel data = new ObjectChartDataModel(model, columns, rows);
534         
535         data.setChartDataModelConstraints(CoordSystem.FIRST_YAXIS,
536                                            new StackedChartDataModelConstraints(data, CoordSystem.FIRST_YAXIS, false));
537         
538         data.setChartDataModelConstraints(CoordSystem.SECOND_YAXIS,
539                                            new StackedChartDataModelConstraints(data, CoordSystem.SECOND_YAXIS, false));
540         
541         DefaultChart c = new DefaultChart(data, title, DefaultChart.LINEAR_X_LINEAR_Y);
542         c.addChartRenderer(new StackedBarChartRenderer(c.getCoordSystem(),
543                             data), 1);
544         c.setBounds(new Rectangle(0, 0, width, height));
545         try {
546             ChartEncoder.createPNG(new FileOutputStream(System.getProperty("user.home")+"/stackedbar.png"), c);
547         } catch(EncodingException e) {
548             System.out.println("** Error creating the stackedbar.png file, showing the stacked bar chart.");
549             e.getCause().printStackTrace();
550             return;
551         } catch(Exception JavaDoc e) {
552             System.out.println("** Error creating the stackedbar.png file, showing the stacked bar chart.");
553             e.printStackTrace();
554             return;
555         }
556         System.out.println("successfull.");
557     }
558     
559     public static void makeManualBarTest() {
560         System.out.println("** Creating Bar Chart Plot with manual scaling.");
561         int[][] model = {{23, 43, 12},
562         {54, 10, 34},
563         {99, 32, 45}};
564         
565         String JavaDoc[] columns = {"1997", "1998", "1999"};
566         
567         String JavaDoc[] rows = {"foobar.com", "@foo Ltd.", "bar.online"};
568         
569         String JavaDoc title = "Average Growth 1997 - 1999";
570         
571         int width = 640;
572         int height = 480;
573         
574         ObjectChartDataModel data = new ObjectChartDataModel(model, columns, rows);
575         
576         data.setManualScale(true);
577         data.setMaximumValue(new Integer JavaDoc(100));
578         data.setMinimumValue(new Integer JavaDoc(0));
579         
580         DefaultChart c = new DefaultChart(data, title, DefaultChart.LINEAR_X_LINEAR_Y);
581         c.addChartRenderer(new BarChartRenderer(c.getCoordSystem(),
582                             data), 1);
583         c.setBounds(new Rectangle(0, 0, width, height));
584         try {
585             ChartEncoder.createPNG(new FileOutputStream(System.getProperty("user.home")+"/manualbar.png"), c);
586         } catch(EncodingException e) {
587             System.out.println("** Error creating the manualbar.png file, showing the manually scaled bar chart.");
588             e.getCause().printStackTrace();
589             return;
590         } catch(Exception JavaDoc e) {
591             System.out.println("** Error creating the manualbar.png file, showing the manually scaled bar chart.");
592             e.printStackTrace();
593             return;
594         }
595         System.out.println("successfull.");
596     }
597     
598     public static void makeSimpleNegativeLineTest() {
599         System.out.println("** Creating Simple Negative Line Test.");
600         int[][] model = {{-200, -160, -80, 0}};
601         
602         double[] columns = {-100, -80, -40, 0};
603         
604         String JavaDoc[] rows = {"Negative sector"};
605         
606         String JavaDoc title = "Just a Test";
607         
608         int width = 640;
609         int height = 480;
610         
611         DefaultChartDataModel data = new DefaultChartDataModel(model, columns, rows);
612         //data.setAutoScale(true);
613
DefaultChart c = new DefaultChart(data, title, DefaultChart.LINEAR_X_LINEAR_Y);
614         c.addChartRenderer(new LineChartRenderer(c.getCoordSystem(), data), 1);
615         
616         c.setBounds(new Rectangle(0, 0, width, height));
617         
618         try {
619             ChartEncoder.createEncodedImage(new FileOutputStream(System.getProperty("user.home")+"/neglinetest.png"), c, "png");
620         } catch(EncodingException e) {
621             System.out.println("** Error creating the neglinetest.png file, showing the simple negative line test.");
622             e.getCause().printStackTrace();
623             return;
624         } catch(Exception JavaDoc e) {
625             System.out.println("** Error creating the neglinetest.png file, showing the simple negative line test.");
626             e.printStackTrace();
627             return;
628         }
629         System.out.println("successfull.");
630     }
631 }
632
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