source: osm/applications/editors/josm/plugins/smed2/src/seamap/Renderer.java@ 30033

Last change on this file since 30033 was 30033, checked in by malcolmh, 12 years ago

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1/* Copyright 2013 Malcolm Herring
2 *
3 * This is free software: you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation, version 3 of the License.
6 *
7 * For a copy of the GNU General Public License, see <http://www.gnu.org/licenses/>.
8 */
9
10package seamap;
11
12import java.awt.*;
13import java.awt.font.*;
14import java.awt.geom.*;
15import java.awt.image.*;
16import java.util.*;
17
18import s57.S57att.*;
19import s57.S57obj.*;
20import s57.S57val.*;
21import s57.S57val;
22import seamap.SeaMap;
23import seamap.SeaMap.*;
24import seamap.SeaMap.Area;
25import symbols.Symbols;
26import symbols.Symbols.*;
27
28public class Renderer {
29
30 public static final EnumMap<ColCOL, Color> bodyColours = new EnumMap<ColCOL, Color>(ColCOL.class);
31 static {
32 bodyColours.put(ColCOL.COL_UNK, new Color(0, true));
33 bodyColours.put(ColCOL.COL_WHT, new Color(0xffffff));
34 bodyColours.put(ColCOL.COL_BLK, new Color(0x000000));
35 bodyColours.put(ColCOL.COL_RED, new Color(0xd40000));
36 bodyColours.put(ColCOL.COL_GRN, new Color(0x00d400));
37 bodyColours.put(ColCOL.COL_BLU, Color.blue);
38 bodyColours.put(ColCOL.COL_YEL, new Color(0xffd400));
39 bodyColours.put(ColCOL.COL_GRY, Color.gray);
40 bodyColours.put(ColCOL.COL_BRN, new Color(0x8b4513));
41 bodyColours.put(ColCOL.COL_AMB, new Color(0xfbf00f));
42 bodyColours.put(ColCOL.COL_VIO, new Color(0xee82ee));
43 bodyColours.put(ColCOL.COL_ORG, Color.orange);
44 bodyColours.put(ColCOL.COL_MAG, new Color(0xf000f0));
45 bodyColours.put(ColCOL.COL_PNK, Color.pink);
46 }
47
48 public static final EnumMap<ColPAT, Patt> pattMap = new EnumMap<ColPAT, Patt>(ColPAT.class);
49 static {
50 pattMap.put(ColPAT.PAT_UNKN, Patt.Z);
51 pattMap.put(ColPAT.PAT_HORI, Patt.H);
52 pattMap.put(ColPAT.PAT_VERT, Patt.V);
53 pattMap.put(ColPAT.PAT_DIAG, Patt.D);
54 pattMap.put(ColPAT.PAT_BRDR, Patt.B);
55 pattMap.put(ColPAT.PAT_SQUR, Patt.S);
56 pattMap.put(ColPAT.PAT_CROS, Patt.C);
57 pattMap.put(ColPAT.PAT_SALT, Patt.X);
58 pattMap.put(ColPAT.PAT_STRP, Patt.H);
59 }
60
61 public static final double symbolScale[] = { 256.0, 128.0, 64.0, 32.0, 16.0, 8.0, 4.0, 2.0, 1.0, 0.61, 0.372, 0.227, 0.138, 0.0843, 0.0514, 0.0313, 0.0191, 0.0117, 0.007, 0.138 };
62
63 public enum LabelStyle { NONE, RRCT, RECT, ELPS, CIRC, VCLR, HCLR }
64
65 static MapContext context;
66 static SeaMap map;
67 static double sScale;
68 static Graphics2D g2;
69 static int zoom;
70
71 public static void reRender(Graphics2D g, int z, double factor, SeaMap m, MapContext c) {
72 g2 = g;
73 zoom = z;
74 context = c;
75 map = m;
76 sScale = symbolScale[zoom] * factor;
77 if (map != null) {
78 g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
79 g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_GASP);
80 g2.setStroke(new BasicStroke(0, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER));
81 Rules.rules(map, zoom);
82 }
83 }
84
85 public static AttMap getAtts(Feature feature, Obj obj, int idx) {
86 HashMap<Integer, AttMap> objs = feature.objs.get(obj);
87 if (objs == null)
88 return null;
89 else
90 return objs.get(idx);
91 }
92
93 public static Object getAttVal(Feature feature, Obj obj, int idx, Att att) {
94 AttMap atts = getAtts(feature, obj, idx);
95 if (atts == null)
96 return S57val.nullVal(att);
97 else {
98 AttItem item = atts.get(att);
99 if (item == null)
100 return S57val.nullVal(att);
101 return item.val;
102 }
103 }
104
105 public static void symbol(Feature feature, Symbol symbol, Obj obj, Scheme scheme, Delta delta) {
106 Point2D point = context.getPoint(feature.centre);
107 if (obj == null) {
108 Symbols.drawSymbol(g2, symbol, sScale, point.getX(), point.getY(), scheme, delta);
109 } else {
110 ArrayList<Color> colours = new ArrayList<Color>();
111 for (ColCOL col : (ArrayList<ColCOL>)getAttVal(feature, obj, 0, Att.COLOUR)) {
112 colours.add(bodyColours.get(col));
113 }
114 ArrayList<Patt> patterns = new ArrayList<Patt>();
115 for(ColPAT pat: (ArrayList<ColPAT>) getAttVal(feature, obj, 0, Att.COLPAT)) {
116 patterns.add(pattMap.get(pat));
117 }
118 Symbols.drawSymbol(g2, symbol, sScale, point.getX(), point.getY(), new Scheme(patterns, colours), delta);
119 }
120 }
121
122 public static void cluster(Feature feature, ArrayList<Symbol> symbols) {
123 Rectangle2D.Double bbox = null;
124 if (symbols.size() > 4) {
125 for (Instr instr : symbols.get(0)) {
126 if (instr.type == Prim.BBOX) {
127 bbox = (Rectangle2D.Double) instr.params;
128 break;
129 }
130 }
131 if (bbox == null) return;
132 }
133 switch (symbols.size()) {
134 case 1:
135 symbol(feature, symbols.get(0), null, null, new Delta(Handle.CC, new AffineTransform()));
136 break;
137 case 2:
138 symbol(feature, symbols.get(0), null, null, new Delta(Handle.RC, new AffineTransform()));
139 symbol(feature, symbols.get(1), null, null, new Delta(Handle.LC, new AffineTransform()));
140 break;
141 case 3:
142 symbol(feature, symbols.get(0), null, null, new Delta(Handle.BC, new AffineTransform()));
143 symbol(feature, symbols.get(1), null, null, new Delta(Handle.TR, new AffineTransform()));
144 symbol(feature, symbols.get(2), null, null, new Delta(Handle.TL, new AffineTransform()));
145 break;
146 case 4:
147 symbol(feature, symbols.get(0), null, null, new Delta(Handle.BR, new AffineTransform()));
148 symbol(feature, symbols.get(1), null, null, new Delta(Handle.BL, new AffineTransform()));
149 symbol(feature, symbols.get(2), null, null, new Delta(Handle.TR, new AffineTransform()));
150 symbol(feature, symbols.get(3), null, null, new Delta(Handle.TL, new AffineTransform()));
151 break;
152 case 5:
153 symbol(feature, symbols.get(0), null, null, new Delta(Handle.BR, new AffineTransform()));
154 symbol(feature, symbols.get(1), null, null, new Delta(Handle.BL, new AffineTransform()));
155 symbol(feature, symbols.get(2), null, null, new Delta(Handle.TR, AffineTransform.getTranslateInstance(-bbox.width/2, 0)));
156 symbol(feature, symbols.get(3), null, null, new Delta(Handle.TC, new AffineTransform()));
157 symbol(feature, symbols.get(4), null, null, new Delta(Handle.TL, AffineTransform.getTranslateInstance(bbox.width/2, 0)));
158 break;
159 case 6:
160 symbol(feature, symbols.get(0), null, null, new Delta(Handle.BR, AffineTransform.getTranslateInstance(-bbox.width/2, 0)));
161 symbol(feature, symbols.get(1), null, null, new Delta(Handle.BC, new AffineTransform()));
162 symbol(feature, symbols.get(2), null, null, new Delta(Handle.BL, AffineTransform.getTranslateInstance(bbox.width/2, 0)));
163 symbol(feature, symbols.get(3), null, null, new Delta(Handle.TR, AffineTransform.getTranslateInstance(-bbox.width/2, 0)));
164 symbol(feature, symbols.get(4), null, null, new Delta(Handle.TC, new AffineTransform()));
165 symbol(feature, symbols.get(5), null, null, new Delta(Handle.TL, AffineTransform.getTranslateInstance(bbox.width/2, 0)));
166 break;
167 case 7:
168 symbol(feature, symbols.get(0), null, null, new Delta(Handle.BC, AffineTransform.getTranslateInstance(0, -bbox.height/2)));
169 symbol(feature, symbols.get(1), null, null, new Delta(Handle.RC, AffineTransform.getTranslateInstance(-bbox.width/2, 0)));
170 symbol(feature, symbols.get(2), null, null, new Delta(Handle.CC, new AffineTransform()));
171 symbol(feature, symbols.get(3), null, null, new Delta(Handle.LC, AffineTransform.getTranslateInstance(bbox.width/2, 0)));
172 symbol(feature, symbols.get(4), null, null, new Delta(Handle.TR, AffineTransform.getTranslateInstance(-bbox.width/2, bbox.height/2)));
173 symbol(feature, symbols.get(5), null, null, new Delta(Handle.TC, AffineTransform.getTranslateInstance(0, bbox.height/2)));
174 symbol(feature, symbols.get(6), null, null, new Delta(Handle.TL, AffineTransform.getTranslateInstance(bbox.width/2, bbox.height/2)));
175 break;
176 case 8:
177 symbol(feature, symbols.get(0), null, null, new Delta(Handle.BR, AffineTransform.getTranslateInstance(0, -bbox.height/2)));
178 symbol(feature, symbols.get(1), null, null, new Delta(Handle.BL, AffineTransform.getTranslateInstance(0, -bbox.height/2)));
179 symbol(feature, symbols.get(2), null, null, new Delta(Handle.RC, AffineTransform.getTranslateInstance(-bbox.width/2, 0)));
180 symbol(feature, symbols.get(3), null, null, new Delta(Handle.CC, new AffineTransform()));
181 symbol(feature, symbols.get(4), null, null, new Delta(Handle.LC, AffineTransform.getTranslateInstance(bbox.width/2, 0)));
182 symbol(feature, symbols.get(5), null, null, new Delta(Handle.TR, AffineTransform.getTranslateInstance(-bbox.width/2, bbox.height/2)));
183 symbol(feature, symbols.get(6), null, null, new Delta(Handle.TC, AffineTransform.getTranslateInstance(0, bbox.height/2)));
184 symbol(feature, symbols.get(7), null, null, new Delta(Handle.TL, AffineTransform.getTranslateInstance(bbox.width/2, bbox.height/2)));
185 break;
186 case 9:
187 symbol(feature, symbols.get(0), null, null, new Delta(Handle.BR, AffineTransform.getTranslateInstance(-bbox.width/2, -bbox.height/2)));
188 symbol(feature, symbols.get(1), null, null, new Delta(Handle.BC, AffineTransform.getTranslateInstance(0, -bbox.height/2)));
189 symbol(feature, symbols.get(2), null, null, new Delta(Handle.BL, AffineTransform.getTranslateInstance(bbox.width/2, -bbox.height/2)));
190 symbol(feature, symbols.get(3), null, null, new Delta(Handle.RC, AffineTransform.getTranslateInstance(-bbox.width/2, 0)));
191 symbol(feature, symbols.get(4), null, null, new Delta(Handle.CC, new AffineTransform()));
192 symbol(feature, symbols.get(5), null, null, new Delta(Handle.LC, AffineTransform.getTranslateInstance(bbox.width/2, 0)));
193 symbol(feature, symbols.get(6), null, null, new Delta(Handle.TR, AffineTransform.getTranslateInstance(-bbox.width/2, bbox.height/2)));
194 symbol(feature, symbols.get(7), null, null, new Delta(Handle.TC, AffineTransform.getTranslateInstance(0, bbox.height/2)));
195 symbol(feature, symbols.get(8), null, null, new Delta(Handle.TL, AffineTransform.getTranslateInstance(bbox.width/2, bbox.height/2)));
196 break;
197 }
198 }
199
200 private static Rectangle2D.Double symbolSize(Symbol symbol) {
201 Symbol ssymb = symbol;
202 while (ssymb != null) {
203 for (Instr item : symbol) {
204 if (item.type == Prim.BBOX) {
205 return (Rectangle2D.Double) item.params;
206 }
207 if (item.type == Prim.SYMB) {
208 ssymb = ((SubSymbol) item.params).instr;
209 break;
210 }
211 }
212 if (ssymb == symbol)
213 break;
214 }
215 return null;
216 }
217
218 public static void lineSymbols(Feature feature, Symbol prisymb, double space, Symbol secsymb, Symbol tersymb, int ratio, Color col) {
219 Area area;
220 switch (feature.flag) {
221 case LINE:
222 Edge edge = map.edges.get(feature.refs);
223 area = map.new Area();
224 area.add(map.new Bound(map.new Side(edge, true), true));
225 break;
226 case AREA:
227 area = map.areas.get(feature.refs);
228 break;
229 default:
230 return;
231 }
232 Rectangle2D.Double prect = symbolSize(prisymb);
233 Rectangle2D.Double srect = symbolSize(secsymb);
234 Rectangle2D.Double trect = symbolSize(tersymb);
235 if (srect == null)
236 ratio = 0;
237 if (prect != null) {
238 double psize = Math.abs(prect.getY()) * sScale;
239 double ssize = (srect != null) ? Math.abs(srect.getY()) * sScale : 0;
240 double tsize = (trect != null) ? Math.abs(srect.getY()) * sScale : 0;
241 Point2D prev = new Point2D.Double();
242 Point2D next = new Point2D.Double();
243 Point2D curr = new Point2D.Double();
244 Point2D succ = new Point2D.Double();
245 boolean gap = true;
246 boolean piv = false;
247 double len = 0;
248 double angle = 0;
249 int stcount = ratio;
250 boolean stflag = false;
251 Symbol symbol = prisymb;
252 for (Bound bound : area) {
253 BoundIterator bit = map.new BoundIterator(bound);
254 boolean first = true;
255 while (bit.hasNext()) {
256 prev = next;
257 next = context.getPoint(bit.next());
258 angle = Math.atan2(next.getY() - prev.getY(), next.getX() - prev.getX());
259 piv = true;
260 if (first) {
261 curr = succ = next;
262 gap = (space > 0);
263 stcount = ratio - 1;
264 symbol = prisymb;
265 len = gap ? psize * space * 0.5 : psize;
266 first = false;
267 } else {
268 while (curr.distance(next) >= len) {
269 if (piv) {
270 double rem = len;
271 double s = prev.distance(next);
272 double p = curr.distance(prev);
273 if ((s > 0) && (p > 0)) {
274 double n = curr.distance(next);
275 double theta = Math.acos((s * s + p * p - n * n) / 2 / s / p);
276 double phi = Math.asin(p / len * Math.sin(theta));
277 rem = len * Math.sin(Math.PI - theta - phi) / Math.sin(theta);
278 }
279 succ = new Point2D.Double(prev.getX() + (rem * Math.cos(angle)), prev.getY() + (rem * Math.sin(angle)));
280 piv = false;
281 } else {
282 succ = new Point2D.Double(curr.getX() + (len * Math.cos(angle)), curr.getY() + (len * Math.sin(angle)));
283 }
284 if (!gap) {
285 Symbols.drawSymbol(g2, symbol, sScale, curr.getX(), curr.getY(), new Scheme(col),
286 new Delta(Handle.BC, AffineTransform.getRotateInstance(Math.atan2((succ.getY() - curr.getY()), (succ.getX() - curr.getX())) + Math.toRadians(90))));
287 }
288 if (space > 0)
289 gap = !gap;
290 curr = succ;
291 len = gap ? (psize * space) : (--stcount == 0) ? (stflag ? tsize : ssize) : psize;
292 if (stcount == 0) {
293 symbol = stflag ? tersymb : secsymb;
294 if (trect != null) stflag = !stflag;
295 stcount = ratio;
296 } else {
297 symbol = prisymb;
298 }
299 }
300 }
301 }
302 }
303 }
304 }
305
306 public static void lineVector(Feature feature, LineStyle style) {
307 Path2D.Double p = new Path2D.Double();
308 p.setWindingRule(GeneralPath.WIND_EVEN_ODD);
309 Point2D point;
310 switch (feature.flag) {
311 case LINE:
312 EdgeIterator eit = map.new EdgeIterator(map.edges.get(feature.refs), true);
313 point = context.getPoint(eit.next());
314 p.moveTo(point.getX(), point.getY());
315 while (eit.hasNext()) {
316 point = context.getPoint(eit.next());
317 p.lineTo(point.getX(), point.getY());
318 }
319 break;
320 case AREA:
321 for (Bound bound : map.areas.get(feature.refs)) {
322 BoundIterator bit = map.new BoundIterator(bound);
323 point = context.getPoint(bit.next());
324 p.moveTo(point.getX(), point.getY());
325 while (bit.hasNext()) {
326 point = context.getPoint(bit.next());
327 p.lineTo(point.getX(), point.getY());
328 }
329 }
330 break;
331 }
332 if (style.line != null) {
333 if (style.dash != null) {
334 float[] dash = new float[style.dash.length];
335 System.arraycopy(style.dash, 0, dash, 0, style.dash.length);
336 for (int i = 0; i < style.dash.length; i++) {
337 dash[i] *= (float) sScale;
338 }
339 g2.setStroke(new BasicStroke((float) (style.width * sScale), BasicStroke.CAP_BUTT, BasicStroke.JOIN_ROUND, 1, dash, 0));
340 } else {
341 g2.setStroke(new BasicStroke((float) (style.width * sScale), BasicStroke.CAP_BUTT, BasicStroke.JOIN_ROUND));
342 }
343 g2.setPaint(style.line);
344 g2.draw(p);
345 }
346 if (style.fill != null) {
347 g2.setPaint(style.fill);
348 g2.fill(p);
349 }
350 }
351
352 public static void lineCircle(Feature feature, LineStyle style, double radius, UniHLU units) {
353 switch (units) {
354 case HLU_FEET:
355 radius /= 6076;
356 break;
357 case HLU_KMTR:
358 radius /= 1.852;
359 break;
360 case HLU_HMTR:
361 radius /= 18.52;
362 break;
363 case HLU_SMIL:
364 radius /= 1.15078;
365 break;
366 case HLU_NMIL:
367 break;
368 default:
369 radius /= 1852;
370 break;
371 }
372 radius *= context.mile(feature);
373 Symbol circle = new Symbol();
374 if (style.fill != null) {
375 circle.add(new Instr(Prim.FILL, style.fill));
376 circle.add(new Instr(Prim.RSHP, new Ellipse2D.Double(-radius,-radius,radius*2,radius*2)));
377 }
378 circle.add(new Instr(Prim.FILL, style.line));
379 circle.add(new Instr(Prim.STRK, new BasicStroke(style.width, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER, 1, style.dash, 0)));
380 circle.add(new Instr(Prim.ELPS, new Ellipse2D.Double(-radius,-radius,radius*2,radius*2)));
381 Point2D point = context.getPoint(feature.centre);
382 Symbols.drawSymbol(g2, circle, 1, point.getX(), point.getY(), null, null);
383 }
384
385
386 public static void fillPattern(Feature feature, BufferedImage image) {
387 Path2D.Double p = new Path2D.Double();
388 p.setWindingRule(GeneralPath.WIND_EVEN_ODD);
389 Point2D point;
390 switch (feature.flag) {
391 case POINT:
392 point = context.getPoint(feature.centre);
393 g2.drawImage(image, new AffineTransformOp(AffineTransform.getScaleInstance(sScale, sScale), AffineTransformOp.TYPE_NEAREST_NEIGHBOR),
394 (int)(point.getX() - (50 * sScale)), (int)(point.getY() - (50 * sScale)));
395 break;
396 case AREA:
397 for (Bound bound : map.areas.get(feature.refs)) {
398 BoundIterator bit = map.new BoundIterator(bound);
399 point = context.getPoint(bit.next());
400 p.moveTo(point.getX(), point.getY());
401 while (bit.hasNext()) {
402 point = context.getPoint(bit.next());
403 p.lineTo(point.getX(), point.getY());
404 }
405 }
406 g2.setPaint(new TexturePaint(image, new Rectangle(0, 0, 1 + (int)(100 * sScale), 1 + (int)(100 * sScale))));
407 g2.fill(p);
408 break;
409 }
410 }
411
412 public static void labelText(Feature feature, String str, Font font, LabelStyle style, Color fg, Color bg, Delta delta) {
413 if (delta == null) delta = new Delta(Handle.CC);
414 if (bg == null) bg = new Color(0x00000000, true);
415 if ((str == null) || (str.isEmpty())) str = " ";
416 FontRenderContext frc = g2.getFontRenderContext();
417 GlyphVector gv = font.deriveFont((float)(font.getSize())).createGlyphVector(frc, str.equals(" ") ? "!" : str);
418 Rectangle2D bounds = gv.getVisualBounds();
419 double width = bounds.getWidth();
420 double height = bounds.getHeight();
421 Symbol label = new Symbol();
422 double lx, ly, tx, ty;
423 switch (style) {
424 case RRCT:
425 width += height * 1.0;
426 height *= 1.5;
427 if (width < height) width = height;
428 lx = -width / 2;
429 ly = -height / 2;
430 tx = lx + (height * 0.34);
431 ty = ly + (height * 0.17);
432 label.add(new Instr(Prim.BBOX, new Rectangle2D.Double(lx,ly,width,height)));
433 label.add(new Instr(Prim.FILL, bg));
434 label.add(new Instr(Prim.RSHP, new RoundRectangle2D.Double(lx,ly,width,height,height,height)));
435 label.add(new Instr(Prim.FILL, fg));
436 label.add(new Instr(Prim.STRK, new BasicStroke(1 + (int)(height/10), BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER)));
437 label.add(new Instr(Prim.RRCT, new RoundRectangle2D.Double(lx,ly,width,height,height,height)));
438 break;
439 case VCLR:
440 width += height * 1.0;
441 height *= 2.0;
442 if (width < height) width = height;
443 lx = -width / 2;
444 ly = -height / 2;
445 tx = lx + (height * 0.27);
446 ty = ly + (height * 0.25);
447 label.add(new Instr(Prim.BBOX, new Rectangle2D.Double(lx,ly,width,height)));
448 label.add(new Instr(Prim.FILL, bg));
449 label.add(new Instr(Prim.RSHP, new RoundRectangle2D.Double(lx,ly,width,height,height,height)));
450 label.add(new Instr(Prim.FILL, fg));
451 int sw = 1 + (int)(height/10);
452 double po = sw / 2;
453 label.add(new Instr(Prim.STRK, new BasicStroke(sw, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER)));
454 Path2D.Double p = new Path2D.Double(); p.moveTo(-height*0.2,-ly-po); p.lineTo(height*0.2,-ly-po); p.moveTo(0,-ly-po); p.lineTo(0,-ly-po-(height*0.15));
455 p.moveTo(-height*0.2,ly+po); p.lineTo((height*0.2),ly+po); p.moveTo(0,ly+po); p.lineTo(0,ly+po+(height*0.15));
456 label.add(new Instr(Prim.PLIN, p));
457 break;
458 default:
459 lx = -width / 2;
460 ly = -height / 2;
461 tx = lx;
462 ty = ly;
463 label.add(new Instr(Prim.BBOX, new Rectangle2D.Double(lx,ly,width,height)));
464 break;
465 }
466 label.add(new Instr(Prim.TEXT, new Caption(str, font, fg, new Delta(Handle.TL, AffineTransform.getTranslateInstance(tx, ty)))));
467 Point2D point = context.getPoint(feature.centre);
468 Symbols.drawSymbol(g2, label, sScale, point.getX(), point.getY(), null, delta);
469 }
470
471 public static void lineText(Feature feature, String str, Font font, Color colour, double offset, double dy) {
472 Area area;
473 switch (feature.flag) {
474 case LINE:
475 Edge edge = map.edges.get(feature.refs);
476 area = map.new Area();
477 area.add(map.new Bound(map.new Side(edge, true), true));
478 break;
479 case AREA:
480 area = map.areas.get(feature.refs);
481 break;
482 default:
483 return;
484 }
485// Rectangle prect = symbolSize(prisymb);
486 if (!str.isEmpty()) {
487 g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
488 FontRenderContext frc = g2.getFontRenderContext();
489 GlyphVector gv = font.deriveFont((float)(font.getSize()*sScale)).createGlyphVector(frc, str);
490// double psize = Math.abs(prect.getX());
491 Point2D prev = new Point2D.Double();
492 Point2D next = new Point2D.Double();
493 Point2D curr = new Point2D.Double();
494 Point2D succ = new Point2D.Double();
495 boolean gap = true;
496 boolean piv = false;
497 double len = 0;
498 double angle = 0;
499 for (Bound bound : area) {
500 BoundIterator bit = map.new BoundIterator(bound);
501 boolean first = true;
502 while (bit.hasNext()) {
503 prev = next;
504 next = context.getPoint(bit.next());
505 angle = Math.atan2(next.getY() - prev.getY(), next.getX() - prev.getX());
506 piv = true;
507 if (first) {
508 curr = succ = next;
509// gap = (space > 0);
510// len = gap ? psize * space * 0.5 : psize;
511 first = false;
512 } else {
513 while (curr.distance(next) >= len) {
514 if (piv) {
515 double rem = len;
516 double s = prev.distance(next);
517 double p = curr.distance(prev);
518 if ((s > 0) && (p > 0)) {
519 double n = curr.distance(next);
520 double theta = Math.acos((s * s + p * p - n * n) / 2 / s / p);
521 double phi = Math.asin(p / len * Math.sin(theta));
522 rem = len * Math.sin(Math.PI - theta - phi) / Math.sin(theta);
523 }
524 succ = new Point2D.Double(prev.getX() + (rem * Math.cos(angle)), prev.getY() + (rem * Math.sin(angle)));
525 piv = false;
526 } else {
527 succ = new Point2D.Double(curr.getX() + (len * Math.cos(angle)), curr.getY() + (len * Math.sin(angle)));
528 }
529 if (!gap) {
530// Symbols.drawSymbol(g2, symbol, sScale, curr.getX(), curr.getY(), new Delta(Handle.BC, AffineTransform.getRotateInstance(Math.atan2((succ.getY() - curr.getY()), (succ.getX() - curr.getX())) + Math.toRadians(90))), null);
531 }
532 gap = false;
533 curr = succ;
534// len = psize;
535 }
536 }
537 }
538 }
539 }
540 }
541}
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