Changeset 12778 in osm for applications/editors/josm/plugins/lakewalker/src/org/openstreetmap
- Timestamp:
- 2009-01-01T18:28:53+01:00 (16 years ago)
- Location:
- applications/editors/josm/plugins/lakewalker/src/org/openstreetmap/josm/plugins/lakewalker
- Files:
-
- 8 edited
Legend:
- Unmodified
- Added
- Removed
-
applications/editors/josm/plugins/lakewalker/src/org/openstreetmap/josm/plugins/lakewalker/Lakewalker.java
r11938 r12778 16 16 17 17 public class Lakewalker { 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 this.workingdir = workingdir; 50 51 52 53 54 55 56 57 58 59 60 * southeast = 7 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 * 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 int[] xy = geo_to_xy(lat,lon,this.resolution); 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 // Check if we got stuck in a loop 200 201 202 203 204 205 206 207 208 209 210 211 } 212 213 214 215 216 217 218 219 * 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 // Shift back one index 239 240 241 242 243 244 245 246 247 248 * Reduce the number of vertices based on their proximity to each other 249 * 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 double x0 = p1[0]; 279 280 double x1 = p2[0]; 281 double y1 = p2[1]; 282 double x2 = p3[0]; 283 284 285 286 287 288 289 290 291 292 293 294 295 296 18 protected Collection<Command> commands = new LinkedList<Command>(); 19 protected Collection<Way> ways = new ArrayList<Way>(); 20 protected boolean cancel; 21 22 private int waylen; 23 private int maxnode; 24 private int threshold; 25 private double epsilon; 26 private int resolution; 27 private int tilesize; 28 private String startdir; 29 private String wmslayer; 30 31 private File workingdir; 32 33 private int[] dirslat = new int[] {0,1,1,1,0,-1,-1,-1}; 34 private int[] dirslon = new int[] {1,1,0,-1,-1,-1,0,1}; 35 36 double start_radius_big = 0.001; 37 double start_radius_small = 0.0002; 38 39 public Lakewalker(int waylen, int maxnode, int threshold, double epsilon, int resolution, int tilesize, String startdir, String wmslayer, File workingdir){ 40 this.waylen = waylen; 41 this.maxnode = maxnode; 42 this.threshold = threshold; 43 this.epsilon = epsilon; 44 this.resolution = resolution; 45 this.tilesize = tilesize; 46 this.startdir = startdir; 47 this.wmslayer = wmslayer; 48 49 this.workingdir = workingdir; 50 } 51 52 /** 53 * east = 0 54 * northeast = 1 55 * north = 2 56 * northwest = 3 57 * west = 4 58 * southwest = 5 59 * south = 6 60 * southeast = 7 61 */ 62 private int getDirectionIndex(String direction) throws ArrayIndexOutOfBoundsException{ 63 int i=0; 64 if(direction.equals("East") || direction.equals("east")){ 65 i = 0; 66 } else if(direction.equals("Northeast") || direction.equals("northeast")){ 67 i = 1; 68 } else if(direction.equals("North") || direction.equals("north")){ 69 i = 2; 70 } else if(direction.equals("Northwest") || direction.equals("northwest")){ 71 i = 3; 72 } else if(direction.equals("West") || direction.equals("west")){ 73 i = 4; 74 } else if(direction.equals("Southwest") || direction.equals("southwest")){ 75 i = 5; 76 } else if(direction.equals("South") || direction.equals("south")){ 77 i = 6; 78 } else if(direction.equals("Southeast") || direction.equals("southeast")){ 79 i = 7; 80 } else { 81 throw new ArrayIndexOutOfBoundsException(tr("Direction index '{0}' not found",direction)); 82 } 83 return i; 84 } 85 86 /** 87 * Do a trace 88 * 89 * @param lat 90 * @param lon 91 * @param tl_lon 92 * @param br_lon 93 * @param tl_lat 94 * @param br_lat 95 */ 96 public ArrayList<double[]> trace(double lat, double lon, double tl_lon, double br_lon, double tl_lat, double br_lat) throws LakewalkerException { 97 98 LakewalkerWMS wms = new LakewalkerWMS(this.resolution, this.tilesize, this.wmslayer, this.workingdir); 99 LakewalkerBBox bbox = new LakewalkerBBox(tl_lat,tl_lon,br_lat,br_lon); 100 101 Boolean detect_loop = false; 102 103 ArrayList<double[]> nodelist = new ArrayList<double[]>(); 104 105 int[] xy = geo_to_xy(lat,lon,this.resolution); 106 107 if(!bbox.contains(lat, lon)){ 108 throw new LakewalkerException(tr("The starting location was not within the bbox")); 109 } 110 111 int v; 112 113 setStatus(tr("Looking for shoreline...")); 114 115 while(true){ 116 double[] geo = xy_to_geo(xy[0],xy[1],this.resolution); 117 if(bbox.contains(geo[0],geo[1])==false){ 118 break; 119 } 120 121 v = wms.getPixel(xy[0], xy[1]); 122 if(v > this.threshold){ 123 break; 124 } 125 126 int delta_lat = this.dirslat[getDirectionIndex(this.startdir)]; 127 int delta_lon = this.dirslon[getDirectionIndex(this.startdir)]; 128 129 xy[0] = xy[0]+delta_lon; 130 xy[1] = xy[1]+delta_lat; 131 132 } 133 134 int[] startxy = new int[] {xy[0], xy[1]}; 135 double[] startgeo = xy_to_geo(xy[0],xy[1],this.resolution); 136 137 //System.out.printf("Found shore at lat %.4f lon %.4f\n",lat,lon); 138 139 int last_dir = this.getDirectionIndex(this.startdir); 140 141 for(int i = 0; i < this.maxnode; i++){ 142 143 // Print a counter 144 if(i % 250 == 0){ 145 setStatus(tr("{0} nodes so far...",i)); 146 //System.out.println(i+" nodes so far..."); 147 } 148 149 // Some variables we need 150 int d; 151 int test_x=0; 152 int test_y=0; 153 int new_dir = 0; 154 155 // Loop through all the directions we can go 156 for(d = 1; d <= this.dirslat.length; d++){ 157 158 // Decide which direction we want to look at from this pixel 159 new_dir = (last_dir + d + 4) % 8; 160 161 test_x = xy[0] + this.dirslon[new_dir]; 162 test_y = xy[1] + this.dirslat[new_dir]; 163 164 double[] geo = xy_to_geo(test_x,test_y,this.resolution); 165 166 if(!bbox.contains(geo[0], geo[1])){ 167 System.out.println("Outside bbox"); 168 break; 169 } 170 171 v = wms.getPixel(test_x, test_y); 172 if(v > this.threshold){ 173 break; 174 } 175 176 if(d == this.dirslat.length-1){ 177 System.out.println("Got stuck"); 178 break; 179 } 180 } 181 182 // Remember this direction 183 last_dir = new_dir; 184 185 // Set the pixel we found as current 186 xy[0] = test_x; 187 xy[1] = test_y; 188 189 // Break the loop if we managed to get back to our starting point 190 if(xy[0] == startxy[0] && xy[1] == startxy[1]){ 191 break; 192 } 193 194 // Store this node 195 double[] geo = xy_to_geo(xy[0],xy[1],this.resolution); 196 nodelist.add(geo); 197 //System.out.println("Adding node at "+xy[0]+","+xy[1]+" ("+geo[1]+","+geo[0]+")"); 198 199 // Check if we got stuck in a loop 200 double start_proximity = Math.pow((geo[0] - startgeo[0]),2) + Math.pow((geo[1] - startgeo[1]),2); 201 202 if(detect_loop){ 203 if(start_proximity < Math.pow(start_radius_small,2)){ 204 System.out.println("Detected loop"); 205 break; 206 } 207 }else{ 208 if(start_proximity > Math.pow(start_radius_big,2)){ 209 detect_loop = true; 210 } 211 } 212 } 213 214 return nodelist; 215 } 216 217 /** 218 * Remove duplicate nodes from the list 219 * 220 * @param nodes 221 * @return 222 */ 223 public ArrayList<double[]> duplicateNodeRemove(ArrayList<double[]> nodes){ 224 225 if(nodes.size() <= 1){ 226 return nodes; 227 } 228 229 double lastnode[] = new double[] {nodes.get(0)[0], nodes.get(0)[1]}; 230 231 for(int i = 1; i < nodes.size(); i++){ 232 double[] thisnode = new double[] {nodes.get(i)[0], nodes.get(i)[1]}; 233 234 if(thisnode[0] == lastnode[0] && thisnode[1] == lastnode[1]){ 235 // Remove the node 236 nodes.remove(i); 237 238 // Shift back one index 239 i = i - 1; 240 } 241 lastnode = thisnode; 242 } 243 244 return nodes; 245 } 246 247 /** 248 * Reduce the number of vertices based on their proximity to each other 249 * 250 * @param nodes 251 * @param proximity 252 * @return 253 */ 254 public ArrayList<double[]> vertexReduce(ArrayList<double[]> nodes, double proximity){ 255 256 // Check if node list is empty 257 if(nodes.size()<=1){ 258 return nodes; 259 } 260 261 double[] test_v = nodes.get(0); 262 ArrayList<double[]> reducednodes = new ArrayList<double[]>(); 263 264 double prox_sq = Math.pow(proximity, 2); 265 266 for(int v = 0; v < nodes.size(); v++){ 267 if(Math.pow(nodes.get(v)[0] - test_v[0],2) + Math.pow(nodes.get(v)[1] - test_v[1],2) > prox_sq){ 268 reducednodes.add(nodes.get(v)); 269 test_v = nodes.get(v); 270 } 271 } 272 273 return reducednodes; 274 } 275 276 public double pointLineDistance(double[] p1, double[] p2, double[] p3){ 277 278 double x0 = p1[0]; 279 double y0 = p1[1]; 280 double x1 = p2[0]; 281 double y1 = p2[1]; 282 double x2 = p3[0]; 283 double y2 = p3[1]; 284 285 if(x2 == x1 && y2 == y1){ 286 return Math.sqrt(Math.pow(x1-x0,2) + Math.pow(y1-y0,2)); 287 } else { 288 return Math.abs((x2-x1)*(y1-y0) - (x1-x0)*(y2-y1)) / Math.sqrt(Math.pow(x2-x1,2) + Math.pow(y2-y1,2)); 289 } 290 } 291 292 public ArrayList<double[]> douglasPeuckerNR(ArrayList<double[]> nodes, double epsilon){ 293 /* 294 command_stack = [(0, len(nodes) - 1)] 295 296 Vector result_stack = new Vector(); 297 297 298 298 while(command_stack.size() > 0){ 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 299 cmd = command_stack.pop(); 300 if(type(cmd) == tuple){ 301 (start, end) = cmd 302 (node, dist) = dp_findpoint(nodes, start, end) 303 if(dist > epsilon){ 304 command_stack.append("+") 305 command_stack.append((start, node)) 306 command_stack.append((node, end)) 307 } else { 308 result_stack.append((start, end)) 309 } 310 } elseif(cmd == "+"){ 311 first = result_stack.pop() 312 second = result_stack.pop() 313 if(first[-1] == second[0]){ 314 result_stack.append(first + second[1:]) 315 //print "Added %s and %s; result is %s" % (first, second, result_stack[-1]) 316 }else { 317 error("ERROR: Cannot connect nodestrings!") 318 #print first 319 #print second 320 return; 321 } 322 } else { 323 error("ERROR: Can't understand command \"%s\"" % (cmd,)) 324 return 325 326 if(len(result_stack) == 1){ 327 return [nodes[x] for x in result_stack[0]]; 328 } else { 329 error("ERROR: Command stack is empty but result stack has %d nodes!" % len(result_stack)); 330 return; 331 } 332 333 farthest_node = None 334 farthest_dist = 0 335 first = nodes[0] 336 last = nodes[-1] 337 338 for(i in xrange(1, len(nodes) - 1){ 339 d = point_line_distance(nodes[i], first, last) 340 if(d > farthest_dist){ 341 farthest_dist = d 342 farthest_node = i 343 } 344 } 345 if(farthest_dist > epsilon){ 346 seg_a = douglas_peucker(nodes[0:farthest_node+1], epsilon) 347 seg_b = douglas_peucker(nodes[farthest_node:-1], epsilon) 348 //print "Minimized %d nodes to %d + %d nodes" % (len(nodes), len(seg_a), len(seg_b)) 349 nodes = seg_a[:-1] + seg_b 350 } else { 351 return [nodes[0], nodes[-1]]; 352 } 353 */ 354 return nodes; 355 } 356 357 public ArrayList<double[]> douglasPeucker(ArrayList<double[]> nodes, double epsilon){ 358 359 // Check if node list is empty 360 if(nodes.size()<=1){ 361 return nodes; 362 } 363 364 int farthest_node = -1; 365 double farthest_dist = 0; 366 double[] first = nodes.get(0); 367 double[] last = nodes.get(nodes.size()-1); 368 369 ArrayList<double[]> new_nodes = new ArrayList<double[]>(); 370 371 double d = 0; 372 373 for(int i = 1; i < nodes.size(); i++){ 374 d = pointLineDistance(nodes.get(i),first,last); 375 if(d>farthest_dist){ 376 farthest_dist = d; 377 farthest_node = i; 378 } 379 } 380 381 ArrayList<double[]> seg_a = new ArrayList<double[]>(); 382 ArrayList<double[]> seg_b = new ArrayList<double[]>(); 383 384 if(farthest_dist > epsilon){ 385 seg_a = douglasPeucker(sublist(nodes,0,farthest_node+1),epsilon); 386 seg_b = douglasPeucker(sublist(nodes,farthest_node,nodes.size()-1),epsilon); 387 388 new_nodes.addAll(seg_a); 389 new_nodes.addAll(seg_b); 390 } else { 391 new_nodes.add(nodes.get(0)); 392 new_nodes.add(nodes.get(nodes.size()-1)); 393 } 394 return new_nodes; 395 } 396 397 private ArrayList<double[]> sublist(ArrayList<double[]> l, int i, int f) throws ArrayIndexOutOfBoundsException { 398 ArrayList<double[]> sub = new ArrayList<double[]>(); 399 400 if(f<i || i < 0 || f < 0 || f > l.size()){ 401 throw new ArrayIndexOutOfBoundsException(); 402 } 403 404 for(int j = i; j < f; j++){ 405 sub.add(l.get(j)); 406 } 407 return sub; 408 } 409 410 public double[] xy_to_geo(int x, int y, double resolution){ 411 double[] geo = new double[2]; 412 geo[0] = y / resolution; 413 geo[1] = x / resolution; 414 return geo; 415 } 416 417 public int[] geo_to_xy(double lat, double lon, double resolution){ 418 int[] xy = new int[2]; 419 420 xy[0] = (int)Math.floor(lon * resolution + 0.5); 421 xy[1] = (int)Math.floor(lat * resolution + 0.5); 422 423 return xy; 424 } 425 426 /* 427 427 * User has hit the cancel button 428 429 430 431 432 433 434 435 436 437 438 439 440 * 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 428 */ 429 public void cancel() { 430 cancel = true; 431 } 432 433 protected void setStatus(String s) { 434 Main.pleaseWaitDlg.currentAction.setText(s); 435 Main.pleaseWaitDlg.repaint(); 436 } 437 438 /** 439 * Class to do checking of whether the point is within our bbox 440 * 441 * @author Jason Reid 442 */ 443 private class LakewalkerBBox { 444 445 private double top = 90; 446 private double left = -180; 447 private double bottom = -90; 448 private double right = 180; 449 450 protected LakewalkerBBox(double top, double left, double bottom, double right){ 451 this.left = left; 452 this.right = right; 453 this.top = top; 454 this.bottom = bottom; 455 } 456 457 protected Boolean contains(double lat, double lon){ 458 if(lat >= this.top || lat <= this.bottom){ 459 return false; 460 } 461 if(lon >= this.right || lon <= this.left){ 462 return false; 463 } 464 if((this.right - this.left) % 360 == 0){ 465 return true; 466 } 467 return (lon - this.left) % 360 <= (this.right - this.left) % 360; 468 } 469 } 470 private void printarr(int[] a){ 471 for(int i = 0; i<a.length; i++){ 472 System.out.println(i+": "+a[i]); 473 } 474 } 475 475 } 476 476 -
applications/editors/josm/plugins/lakewalker/src/org/openstreetmap/josm/plugins/lakewalker/LakewalkerAction.java
r12479 r12778 35 35 /** 36 36 * Interface to Darryl Shpak's Lakewalker module 37 * 37 * 38 38 * @author Brent Easton 39 39 */ … … 45 45 protected Thread executeThread; 46 46 protected boolean cancel; 47 47 48 48 protected Collection<Command> commands = new LinkedList<Command>(); 49 49 protected Collection<Way> ways = new ArrayList<Way>(); … … 56 56 setEnabled(true); 57 57 } 58 58 59 59 public void actionPerformed(ActionEvent e) { 60 60 if(Main.map == null || Main.map.mapView == null) … … 78 78 */ 79 79 private void cleanupCache() { 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 } 124 80 final long maxCacheAge = System.currentTimeMillis()-Main.pref.getInteger(LakewalkerPreferences.PREF_MAXCACHEAGE, 100)*24*60*60*1000L; 81 final long maxCacheSize = Main.pref.getInteger(LakewalkerPreferences.PREF_MAXCACHESIZE, 300)*1024*1024; 82 83 for (String wmsFolder : LakewalkerPreferences.WMSLAYERS) { 84 String wmsCacheDirName = Main.pref.getPreferencesDir()+"plugins/Lakewalker/"+wmsFolder; 85 File wmsCacheDir = new File(wmsCacheDirName); 86 87 if (wmsCacheDir.exists() && wmsCacheDir.isDirectory()) { 88 File wmsCache[] = wmsCacheDir.listFiles(); 89 90 // sort files by date (most recent first) 91 Arrays.sort(wmsCache, new Comparator<File>() { 92 public int compare(File f1, File f2) { 93 return (int)(f2.lastModified()-f1.lastModified()); 94 } 95 }); 96 97 // delete aged or oversized, keep newest. Once size/age limit was reached delete all older files 98 long folderSize = 0; 99 boolean quickdelete = false; 100 for (File cacheEntry : wmsCache) { 101 if (!cacheEntry.isFile()) continue; 102 if (!quickdelete) { 103 folderSize += cacheEntry.length(); 104 if (folderSize > maxCacheSize) { 105 quickdelete = true; 106 } else if (cacheEntry.lastModified() < maxCacheAge) { 107 quickdelete = true; 108 } 109 } 110 111 if (quickdelete) { 112 cacheEntry.delete(); 113 } 114 } 115 116 } else { 117 // create cache directory 118 if (!wmsCacheDir.mkdirs()) { 119 JOptionPane.showMessageDialog(Main.parent, tr("Error creating cache directory: {0}", wmsCacheDirName)); 120 } 121 } 122 } 123 } 124 125 125 protected void lakewalk(Point clickPoint){ 126 127 128 129 130 131 132 .getHeight()); 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 126 /** 127 * Positional data 128 */ 129 final LatLon pos = Main.map.mapView.getLatLon(clickPoint.x, clickPoint.y); 130 final LatLon topLeft = Main.map.mapView.getLatLon(0, 0); 131 final LatLon botRight = Main.map.mapView.getLatLon(Main.map.mapView.getWidth(), Main.map.mapView 132 .getHeight()); 133 134 /** 135 * Cache/working directory location 136 */ 137 final File working_dir = new File(Main.pref.getPreferencesDir(), "plugins/Lakewalker"); 138 139 /* 140 * Collect options 141 */ 142 final int waylen = Main.pref.getInteger(LakewalkerPreferences.PREF_MAX_SEG, 500); 143 final int maxnode = Main.pref.getInteger(LakewalkerPreferences.PREF_MAX_NODES, 50000); 144 final int threshold = Main.pref.getInteger(LakewalkerPreferences.PREF_THRESHOLD_VALUE, 90); 145 final double epsilon = Main.pref.getDouble(LakewalkerPreferences.PREF_EPSILON, 0.0003); 146 final int resolution = Main.pref.getInteger(LakewalkerPreferences.PREF_LANDSAT_RES, 4000); 147 final int tilesize = Main.pref.getInteger(LakewalkerPreferences.PREF_LANDSAT_SIZE, 2000); 148 final String startdir = Main.pref.get(LakewalkerPreferences.PREF_START_DIR, "east"); 149 final String wmslayer = Main.pref.get(LakewalkerPreferences.PREF_WMS, "IR1"); 150 151 try { 152 152 PleaseWaitRunnable lakewalkerTask = new PleaseWaitRunnable(tr("Tracing")){ 153 153 @Override protected void realRun() throws SAXException { 154 155 156 154 setStatus(tr("checking cache...")); 155 cleanupCache(); 156 processnodelist(pos, topLeft, botRight, waylen,maxnode,threshold,epsilon,resolution,tilesize,startdir,wmslayer,working_dir); 157 157 } 158 158 @Override protected void finish() { 159 159 160 160 } 161 161 @Override protected void cancel() { … … 168 168 catch (Exception ex) { 169 169 System.out.println("Exception caught: " + ex.getMessage()); 170 } 171 } 172 170 } 171 } 172 173 173 private void processnodelist(LatLon pos, LatLon topLeft, LatLon botRight, int waylen, int maxnode, int threshold, double epsilon, int resolution, int tilesize, String startdir, String wmslayer, File workingdir){ 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 try { 241 242 243 244 245 246 247 248 } catch (Exception ex) { 249 } 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 174 175 ArrayList<double[]> nodelist = new ArrayList<double[]>(); 176 177 Lakewalker lw = new Lakewalker(waylen,maxnode,threshold,epsilon,resolution,tilesize,startdir,wmslayer,workingdir); 178 try { 179 nodelist = lw.trace(pos.lat(),pos.lon(),topLeft.lon(),botRight.lon(),topLeft.lat(),botRight.lat()); 180 } catch(LakewalkerException e){ 181 System.out.println(e.getError()); 182 } 183 184 System.out.println(nodelist.size()+" nodes generated"); 185 186 /** 187 * Run the nodelist through a vertex reduction algorithm 188 */ 189 190 setStatus(tr("Running vertex reduction...")); 191 192 nodelist = lw.vertexReduce(nodelist, epsilon); 193 194 //System.out.println("After vertex reduction "+nodelist.size()+" nodes remain."); 195 196 /** 197 * And then through douglas-peucker approximation 198 */ 199 200 setStatus(tr("Running Douglas-Peucker approximation...")); 201 202 nodelist = lw.douglasPeucker(nodelist, epsilon); 203 204 //System.out.println("After Douglas-Peucker approximation "+nodelist.size()+" nodes remain."); 205 206 /** 207 * And then through a duplicate node remover 208 */ 209 210 setStatus(tr("Removing duplicate nodes...")); 211 212 nodelist = lw.duplicateNodeRemove(nodelist); 213 214 //System.out.println("After removing duplicate nodes, "+nodelist.size()+" nodes remain."); 215 216 217 // if for some reason (image loading failed, ...) nodelist is empty, no more processing required. 218 if (nodelist.size() == 0) { 219 return; 220 } 221 222 /** 223 * Turn the arraylist into osm nodes 224 */ 225 226 Way way = new Way(); 227 Node n = null; 228 Node fn = null; 229 230 double eastOffset = Main.pref.getDouble(LakewalkerPreferences.PREF_EAST_OFFSET, 0.0); 231 double northOffset = Main.pref.getDouble(LakewalkerPreferences.PREF_NORTH_OFFSET, 0.0); 232 233 int nodesinway = 0; 234 235 for(int i = 0; i< nodelist.size(); i++){ 236 if (cancel) { 237 return; 238 } 239 240 try { 241 LatLon ll = new LatLon(nodelist.get(i)[0]+northOffset, nodelist.get(i)[1]+eastOffset); 242 n = new Node(ll); 243 if(fn==null){ 244 fn = n; 245 } 246 commands.add(new AddCommand(n)); 247 248 } catch (Exception ex) { 249 } 250 251 way.nodes.add(n); 252 253 if(nodesinway > Main.pref.getInteger(LakewalkerPreferences.PREF_MAX_SEG, 500)){ 254 String waytype = Main.pref.get(LakewalkerPreferences.PREF_WAYTYPE, "water"); 255 256 if(!waytype.equals("none")){ 257 way.put("natural",waytype); 258 } 259 260 way.put("created_by", "Dshpak_landsat_lakes"); 261 commands.add(new AddCommand(way)); 262 263 way = new Way(); 264 265 way.nodes.add(n); 266 267 nodesinway = 0; 268 } 269 nodesinway++; 270 } 271 272 273 String waytype = Main.pref.get(LakewalkerPreferences.PREF_WAYTYPE, "water"); 274 275 275 if(!waytype.equals("none")){ 276 277 } 278 276 way.put("natural",waytype); 277 } 278 279 279 way.put("created_by", "Dshpak_landsat_lakes"); 280 281 282 283 284 285 280 281 way.nodes.add(fn); 282 283 commands.add(new AddCommand(way)); 284 285 if (!commands.isEmpty()) { 286 286 Main.main.undoRedo.add(new SequenceCommand(tr("Lakewalker trace"), commands)); 287 287 Main.ds.setSelected(ways); 288 288 } else { 289 290 } 291 292 293 294 295 } 296 289 System.out.println("Failed"); 290 } 291 292 commands = new LinkedList<Command>(); 293 ways = new ArrayList<Way>(); 294 295 } 296 297 297 public void cancel() { 298 298 cancel = true; 299 299 } 300 300 … … 317 317 } 318 318 protected void setStatus(String s) { 319 320 319 Main.pleaseWaitDlg.currentAction.setText(s); 320 Main.pleaseWaitDlg.repaint(); 321 321 } 322 322 } -
applications/editors/josm/plugins/lakewalker/src/org/openstreetmap/josm/plugins/lakewalker/LakewalkerApp.java
r9273 r12778 5 5 6 6 public class LakewalkerApp { 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 7 public static void main(String[] args){ 8 double lat = 52.31384; 9 double lon = -79.135; 10 double toplat = 52.3165; 11 double botlat = 52.3041; 12 double leftlon = -79.1442; 13 double rightlon = -79.1093; 14 15 // ?lat=39.15579999999999&lon=2.9411&zoom=12&layers=B000F000F 16 lat = 39.1422; 17 lon = 2.9102; 18 19 toplat = 39.2229; 20 botlat = 39.0977; 21 leftlon = 2.8560; 22 rightlon = 3.0462; 23 24 int waylen = 250; 25 int maxnode = 5000; 26 int threshold = 100; 27 double dp = 0.0003; 28 int tilesize = 2000; 29 int resolution = 4000; 30 String startdir = "East"; 31 String wmslayer = "IR2"; 32 33 File working_dir = new File("Lakewalker"); 34 35 ArrayList<double[]> nodelist = null; 36 37 Lakewalker lw = new Lakewalker(waylen,maxnode,threshold,dp,resolution,tilesize,startdir,wmslayer,working_dir); 38 try { 39 nodelist = lw.trace(lat,lon,leftlon,rightlon,toplat,botlat); 40 } catch(LakewalkerException e){ 41 System.out.println(e.getError()); 42 } 43 44 System.out.println(nodelist.size()+" nodes generated"); 45 46 nodelist = lw.vertexReduce(nodelist, dp); 47 48 System.out.println("After vertex reduction, "+nodelist.size()+" nodes remain."); 49 50 nodelist = lw.douglasPeucker(nodelist, dp); 51 52 System.out.println("After dp approximation, "+nodelist.size()+" nodes remain."); 53 54 55 56 } 57 57 } -
applications/editors/josm/plugins/lakewalker/src/org/openstreetmap/josm/plugins/lakewalker/LakewalkerException.java
r6910 r12778 2 2 3 3 class LakewalkerException extends Exception { 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 4 String error; 5 6 public LakewalkerException(){ 7 super(); 8 this.error = "An unknown error has occured"; 9 } 10 11 public LakewalkerException(String err){ 12 super(); 13 this.error = err; 14 } 15 16 public String getError(){ 17 return this.error; 18 } 19 19 } -
applications/editors/josm/plugins/lakewalker/src/org/openstreetmap/josm/plugins/lakewalker/LakewalkerPlugin.java
r12255 r12778 10 10 /** 11 11 * Interface to Darryl Shpak's Lakewalker python module 12 * 12 * 13 13 * @author Brent Easton 14 14 */ … … 18 18 } 19 19 20 public PreferenceSetting getPreferenceSetting() 20 public PreferenceSetting getPreferenceSetting() 21 21 { 22 22 return new LakewalkerPreferences(); -
applications/editors/josm/plugins/lakewalker/src/org/openstreetmap/josm/plugins/lakewalker/LakewalkerReader.java
r10920 r12778 51 51 52 52 try { 53 54 55 53 54 Node n = null; // The current node being created 55 Node tn = null; // The last node of the previous way 56 56 Node fn = null; // Node to hold the first node in the trace 57 57 58 58 while ((line = input.readLine()) != null) { 59 59 if (cancel) { … … 67 67 68 68 if(tn==null){ 69 try { 70 71 72 73 74 75 76 77 78 79 69 try { 70 LatLon ll = new LatLon(Double.parseDouble(tokens[1])+northOffset, Double.parseDouble(tokens[2])+eastOffset); 71 n = new Node(ll); 72 if(fn==null){ 73 fn = n; 74 } 75 commands.add(new AddCommand(n)); 76 } 77 catch (Exception ex) { 78 79 } 80 80 81 81 } else { 82 82 // If there is a last node, and this node has the same coordinates 83 83 // then we substitute for the previous node 84 85 tn = null;84 n = tn; 85 tn = null; 86 86 } 87 88 87 88 way.nodes.add(n); 89 89 90 90 break; … … 98 98 99 99 if(!waytype.equals("none")){ 100 100 way.put("natural",waytype); 101 101 } 102 102 … … 106 106 break; 107 107 108 case 't': 109 110 111 108 case 't': 109 way = new Way(); 110 tn = n; 111 break; 112 112 113 113 case 'e': -
applications/editors/josm/plugins/lakewalker/src/org/openstreetmap/josm/plugins/lakewalker/LakewalkerWMS.java
r11924 r12778 17 17 18 18 public class LakewalkerWMS { 19 20 21 22 23 24 25 26 // Hashmap to hold the mapping of cached images 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 int[] bottom_left_xy = new int[2]; 50 51 52 53 int[] top_right_xy = new int[2]; 19 20 private BufferedImage image; 21 private int imagex; 22 private int imagey; 23 24 // Vector to cache images in memory 25 private Vector<BufferedImage> images = new Vector<BufferedImage>(); 26 // Hashmap to hold the mapping of cached images 27 private HashMap<String,Integer> imageindex = new HashMap<String,Integer>(); 28 29 private int resolution; 30 private int tilesize; 31 32 private String wmslayer; 33 34 private File working_dir; 35 36 public LakewalkerWMS(int resolution, int tilesize, String wmslayer, File workdir){ 37 this.resolution = resolution; 38 this.tilesize = tilesize; 39 this.working_dir = workdir; 40 this.wmslayer = wmslayer; 41 } 42 43 public BufferedImage getTile(int x, int y) throws LakewalkerException { 44 String status = getStatus(); 45 setStatus(tr("Downloading image tile...")); 46 47 String layer = "global_mosaic_base"; 48 49 int[] bottom_left_xy = new int[2]; 50 bottom_left_xy[0] = floor(x,this.tilesize); 51 bottom_left_xy[1] = floor(y,this.tilesize); 52 53 int[] top_right_xy = new int[2]; 54 54 top_right_xy[0] = (int)bottom_left_xy[0] + this.tilesize; 55 55 top_right_xy[1] = (int)bottom_left_xy[1] + this.tilesize; 56 56 57 57 double[] topright_geo = xy_to_geo(top_right_xy[0],top_right_xy[1],this.resolution); 58 58 double[] bottomleft_geo = xy_to_geo(bottom_left_xy[0],bottom_left_xy[1],this.resolution); 59 60 61 62 63 64 59 60 String filename = this.wmslayer+"/landsat_"+this.resolution+"_"+this.tilesize+ 61 "_xy_"+bottom_left_xy[0]+"_"+bottom_left_xy[1]+".png"; 62 63 // The WMS server only understands decimal points using periods, so we need 64 // to convert to a locale that uses that to build the proper URL 65 65 NumberFormat nf = NumberFormat.getInstance(Locale.ENGLISH); 66 67 68 69 70 71 72 73 74 66 DecimalFormat df = (DecimalFormat)nf; 67 df.applyLocalizedPattern("0.000000"); 68 69 String urlloc = "http://onearth.jpl.nasa.gov/wms.cgi?request=GetMap&layers="+layer+ 70 "&styles="+wmslayer+"&srs=EPSG:4326&format=image/png"+ 71 "&bbox="+df.format(bottomleft_geo[1])+","+df.format(bottomleft_geo[0])+ 72 ","+df.format(topright_geo[1])+","+df.format(topright_geo[0])+ 73 "&width="+this.tilesize+"&height="+this.tilesize; 74 75 75 File file = new File(this.working_dir,filename); 76 76 77 77 // Calculate the hashmap key 78 79 78 String hashkey = Integer.toString(bottom_left_xy[0])+":"+Integer.toString(bottom_left_xy[1]); 79 80 80 // See if this image is already loaded 81 if(this.image != null){ 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 } 100 101 try { 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 try { 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 81 if(this.image != null){ 82 if(this.imagex != bottom_left_xy[0] || this.imagey != bottom_left_xy[1]){ 83 84 // Check if this image exists in the hashmap 85 if(this.imageindex.containsKey(hashkey)){ 86 // Store which image we have 87 this.imagex = bottom_left_xy[0]; 88 this.imagey = bottom_left_xy[1]; 89 90 // Retrieve from cache 91 this.image = this.images.get(this.imageindex.get(hashkey)); 92 return this.image; 93 } else { 94 this.image = null; 95 } 96 } else { 97 return this.image; 98 } 99 } 100 101 try { 102 System.out.println("Looking for image in disk cache: "+filename); 103 104 // Read from a file 105 this.image = ImageIO.read(file); 106 107 this.images.add(this.image); 108 this.imageindex.put(hashkey,this.images.size()-1); 109 110 } catch(FileNotFoundException e){ 111 System.out.println("Could not find cached image, downloading."); 112 } catch(IOException e){ 113 System.out.println(e.getMessage()); 114 } catch(Exception e){ 115 System.out.println(e.getMessage()); 116 } 117 118 if(this.image == null){ 119 /** 120 * Try downloading the image 121 */ 122 try { 123 System.out.println("Downloading from "+urlloc); 124 125 // Read from a URL 126 URL url = new URL(urlloc); 127 this.image = ImageIO.read(url); // this can return null! 128 } catch(MalformedURLException e){ 129 System.out.println(e.getMessage()); 130 } catch(IOException e){ 131 System.out.println(e.getMessage()); 132 } catch(Exception e){ 133 System.out.println(e.getMessage()); 134 } 135 136 if (this.image != null) { 137 this.images.add(this.image); 138 this.imageindex.put(hashkey,this.images.size()-1); 139 140 this.saveimage(file,this.image); 141 } 142 } 143 144 this.imagex = bottom_left_xy[0]; 145 this.imagey = bottom_left_xy[1]; 146 147 if(this.image == null){ 148 throw new LakewalkerException(tr("Could not acquire image")); 149 } 150 151 setStatus(status); 152 153 return this.image; 154 } 155 156 public void saveimage(File file, BufferedImage image){ 157 157 /** 158 158 * Save the image to the cache 159 159 */ 160 160 try { 161 162 161 ImageIO.write(image, "png", file); 162 System.out.println("Saved image to cache"); 163 163 } catch(Exception e){ 164 165 } 166 167 168 169 170 171 172 173 174 175 176 177 178 179 throw new LakewalkerException(e.getMessage()); 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 164 System.out.println(e.getMessage()); 165 } 166 } 167 168 public int getPixel(int x, int y) throws LakewalkerException{ 169 170 // Get the previously shown text 171 172 173 BufferedImage image = null; 174 175 try { 176 image = this.getTile(x,y); 177 } catch(LakewalkerException e){ 178 System.out.println(e.getError()); 179 throw new LakewalkerException(e.getMessage()); 180 } 181 182 int tx = floor(x,this.tilesize); 183 int ty = floor(y,this.tilesize); 184 185 int pixel_x = (x-tx); 186 int pixel_y = (this.tilesize-1)-(y-ty); 187 188 //System.out.println("("+x+","+y+") maps to ("+pixel_x+","+pixel_y+") by ("+tx+", "+ty+")"); 189 190 int rgb = image.getRGB(pixel_x,pixel_y); 191 192 int pixel; 193 194 int r = (rgb >> 16) & 0xff; 195 195 int g = (rgb >> 8) & 0xff; 196 196 int b = (rgb >> 0) & 0xff; 197 197 198 198 pixel = (int)((0.30 * r) + (0.59 * b) + (0.11 * g)); 199 200 return pixel; 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 199 200 return pixel; 201 } 202 203 public int floor(int num, int precision){ 204 double dnum = num/(double)precision; 205 BigDecimal val = new BigDecimal(dnum) ; 206 val = val.setScale(0, BigDecimal.ROUND_FLOOR); 207 return val.intValue()*precision; 208 } 209 210 public double floor(double num) { 211 BigDecimal val = new BigDecimal(num) ; 212 val = val.setScale(0, BigDecimal.ROUND_FLOOR); 213 return val.doubleValue() ; 214 } 215 216 public double[] xy_to_geo(int x, int y, double resolution){ 217 double[] geo = new double[2]; 218 geo[0] = y / resolution; 219 geo[1] = x / resolution; 220 return geo; 221 } 222 223 public int[] geo_to_xy(double lat, double lon, double resolution){ 224 int[] xy = new int[2]; 225 226 xy[0] = (int)Math.floor(lon * resolution + 0.5); 227 xy[1] = (int)Math.floor(lat * resolution + 0.5); 228 229 return xy; 230 } 231 232 private void printarr(int[] a){ 233 for(int i = 0; i<a.length; i++){ 234 System.out.println(i+": "+a[i]); 235 } 236 } 237 protected void setStatus(String s) { 238 Main.pleaseWaitDlg.currentAction.setText(s); 239 Main.pleaseWaitDlg.repaint(); 240 } 241 protected String getStatus(){ 242 return Main.pleaseWaitDlg.currentAction.getText(); 243 } 244 244 } -
applications/editors/josm/plugins/lakewalker/src/org/openstreetmap/josm/plugins/lakewalker/StringEnumConfigurer.java
r5979 r12778 96 96 97 97 public void setValidValues(String[] s) { 98 99 100 101 102 98 validValues = s; 99 if (box == null) { 100 getControls(); 101 } 102 box.setModel(new DefaultComboBoxModel(validValues)); 103 103 } 104 104
Note:
See TracChangeset
for help on using the changeset viewer.