Mercurial > dive4elements > river
comparison flys-artifacts/src/main/java/de/intevation/flys/exports/XYChartGenerator.java @ 1935:5b51f5232661
Added handling of empty plots.
flys-artifacts/trunk@3316 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
|---|---|
| date | Fri, 25 Nov 2011 09:39:09 +0000 |
| parents | e4a516ca2e86 |
| children | 0d12e70766c8 |
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| 1934:e4a516ca2e86 | 1935:5b51f5232661 |
|---|---|
| 173 addAnnotations(plot); | 173 addAnnotations(plot); |
| 174 addSubtitles(chart); | 174 addSubtitles(chart); |
| 175 adjustPlot(plot); | 175 adjustPlot(plot); |
| 176 localizeAxes(plot); | 176 localizeAxes(plot); |
| 177 | 177 |
| 178 removeEmptyRangeAxes(plot); | |
| 179 createAxes(plot); | 178 createAxes(plot); |
| 180 adjustAxes(plot); | 179 adjustAxes(plot); |
| 181 | 180 |
| 181 recoverEmptyPlot(plot); | |
| 182 | |
| 182 preparePointRanges(plot); | 183 preparePointRanges(plot); |
| 183 autoZoom(plot); | 184 autoZoom(plot); |
| 184 | 185 |
| 185 applyThemes(plot); | 186 applyThemes(plot); |
| 187 removeEmptyRangeAxes(plot); | |
| 186 | 188 |
| 187 return chart; | 189 return chart; |
| 188 } | 190 } |
| 189 | 191 |
| 190 | 192 |
| 205 } | 207 } |
| 206 } | 208 } |
| 207 | 209 |
| 208 | 210 |
| 209 /** | 211 /** |
| 210 * Add given series. | 212 * Add given series if visible, if not visible adjust ranges (such that |
| 213 * all points in data would be plotted once visible). | |
| 211 * @param series the dataseries to include in plot. | 214 * @param series the dataseries to include in plot. |
| 212 * @param index index of the series and of its axis. | 215 * @param index index of the series and of its axis. |
| 213 * @param visible whether or not the data should be plotted. | 216 * @param visible whether or not the data should be plotted. |
| 214 */ | 217 */ |
| 215 public void addAxisSeries(XYSeries series, int index, boolean visible) { | 218 public void addAxisSeries(XYSeries series, int index, boolean visible) { |
| 288 * Create y-axes, ensure that the first axis (with data) is on the left. | 291 * Create y-axes, ensure that the first axis (with data) is on the left. |
| 289 */ | 292 */ |
| 290 public void createAxes(XYPlot plot) { | 293 public void createAxes(XYPlot plot) { |
| 291 logger.debug("XYChartGenerator.createAxes"); | 294 logger.debug("XYChartGenerator.createAxes"); |
| 292 | 295 |
| 293 Integer last = datasets.lastKey(); | 296 if (datasets.isEmpty()) { |
| 294 int i = 0; | 297 plot.setRangeAxis(0, createYAxis(0)); |
| 295 int firstVisible = 0; | 298 } |
| 296 | 299 else { |
| 297 if (last != null) { | 300 Integer last = datasets.lastKey(); |
| 298 firstVisible = i = last; | 301 int i = 0; |
| 299 for (; i >= 0; --i) { | 302 int firstVisible = 0; |
| 300 if (datasets.containsKey(i)) { | 303 |
| 301 plot.setRangeAxis(i, createYAxis(i)); | 304 if (last != null) { |
| 302 firstVisible = i; | 305 firstVisible = i = last; |
| 306 for (; i >= 0; --i) { | |
| 307 if (datasets.containsKey(i)) { | |
| 308 plot.setRangeAxis(i, createYAxis(i)); | |
| 309 firstVisible = i; | |
| 310 } | |
| 303 } | 311 } |
| 304 } | 312 plot.setRangeAxisLocation(firstVisible, AxisLocation.TOP_OR_LEFT); |
| 305 plot.setRangeAxisLocation(firstVisible, AxisLocation.TOP_OR_LEFT); | 313 } |
| 306 } | 314 } |
| 307 } | 315 } |
| 316 | |
| 308 | 317 |
| 309 /** | 318 /** |
| 310 * Create Y (range) axis for given index. | 319 * Create Y (range) axis for given index. |
| 311 * Shall be overriden by subclasses. | 320 * Shall be overriden by subclasses. |
| 312 */ | 321 */ |
| 313 protected NumberAxis createYAxis(int index) { | 322 protected NumberAxis createYAxis(int index) { |
| 314 NumberAxis axis = new NumberAxis("default axis"); | 323 NumberAxis axis = new NumberAxis("default axis"); |
| 315 return axis; | 324 return axis; |
| 316 } | 325 } |
| 317 | 326 |
| 327 /** | |
| 328 * If no data is visible, draw at least empty axis. | |
| 329 */ | |
| 330 private void recoverEmptyPlot(XYPlot plot) { | |
| 331 if (plot.getRangeAxis() == null) { | |
| 332 logger.debug("debug: No range axis"); | |
| 333 plot.setRangeAxis(createYAxis(0)); | |
| 334 } | |
| 335 | |
| 336 } | |
| 337 | |
| 338 /** | |
| 339 * Remove Axes which do not have data on them. | |
| 340 */ | |
| 318 private void removeEmptyRangeAxes(XYPlot plot) { | 341 private void removeEmptyRangeAxes(XYPlot plot) { |
| 342 if (datasets.isEmpty()) { | |
| 343 return; | |
| 344 } | |
| 319 Integer last = datasets.lastKey(); | 345 Integer last = datasets.lastKey(); |
| 320 | 346 |
| 321 if (last != null) { | 347 if (last != null) { |
| 322 for (int i = last-1; i >= 0; --i) { | 348 for (int i = last-1; i >= 0; --i) { |
| 323 if (!datasets.containsKey(i)) { | 349 if (!datasets.containsKey(i)) { |