source: osm/applications/editors/josm/plugins/smed2/src/render/Renderer.java@ 30323

Last change on this file since 30323 was 30323, checked in by malcolmh, 11 years ago

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1/* Copyright 2014 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 render;
11
12import java.awt.*;
13import java.awt.font.*;
14import java.awt.geom.*;
15import java.awt.image.*;
16import java.util.*;
17
18import s57.S57val.*;
19import s57.S57map;
20import s57.S57map.*;
21import symbols.Areas;
22import symbols.Symbols;
23import symbols.Symbols.*;
24
25public class Renderer {
26
27 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 };
28
29 public enum LabelStyle { NONE, RRCT, RECT, ELPS, CIRC, VCLR, PCLR, HCLR }
30
31 static MapContext context;
32 static S57map map;
33 static double sScale;
34 static Graphics2D g2;
35 static int zoom;
36
37 public static void reRender(Graphics2D g, int z, double factor, S57map m, MapContext c) {
38 g2 = g;
39 zoom = z;
40 context = c;
41 map = m;
42 sScale = symbolScale[zoom] * factor;
43 if (map != null) {
44 g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
45 g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_GASP);
46 g2.setStroke(new BasicStroke(0, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER));
47 Rules.rules();
48 }
49 }
50
51 public static void symbol(Feature feature, Symbol symbol) {
52 Point2D point = context.getPoint(feature.geom.centre);
53 Symbols.drawSymbol(g2, symbol, sScale, point.getX(), point.getY(), null, null);
54 }
55 public static void symbol(Feature feature, Symbol symbol, Scheme scheme) {
56 Point2D point = context.getPoint(feature.geom.centre);
57 Symbols.drawSymbol(g2, symbol, sScale, point.getX(), point.getY(), scheme, null);
58 }
59 public static void symbol(Feature feature, Symbol symbol, Delta delta) {
60 Point2D point = context.getPoint(feature.geom.centre);
61 Symbols.drawSymbol(g2, symbol, sScale, point.getX(), point.getY(), null, delta);
62 }
63 public static void symbol(Feature feature, Symbol symbol, Scheme scheme, Delta delta) {
64 Point2D point = context.getPoint(feature.geom.centre);
65 Symbols.drawSymbol(g2, symbol, sScale, point.getX(), point.getY(), scheme, delta);
66 }
67
68 public static void cluster(Feature feature, ArrayList<Symbol> symbols) {
69 Rectangle2D.Double bbox = null;
70 if (symbols.size() > 4) {
71 for (Instr instr : symbols.get(0)) {
72 if (instr.type == Form.BBOX) {
73 bbox = (Rectangle2D.Double) instr.params;
74 break;
75 }
76 }
77 if (bbox == null) return;
78 }
79 switch (symbols.size()) {
80 case 1:
81 symbol(feature, symbols.get(0), new Delta(Handle.CC, new AffineTransform()));
82 break;
83 case 2:
84 symbol(feature, symbols.get(0), new Delta(Handle.RC, new AffineTransform()));
85 symbol(feature, symbols.get(1), new Delta(Handle.LC, new AffineTransform()));
86 break;
87 case 3:
88 symbol(feature, symbols.get(0), new Delta(Handle.BC, new AffineTransform()));
89 symbol(feature, symbols.get(1), new Delta(Handle.TR, new AffineTransform()));
90 symbol(feature, symbols.get(2), new Delta(Handle.TL, new AffineTransform()));
91 break;
92 case 4:
93 symbol(feature, symbols.get(0), new Delta(Handle.BR, new AffineTransform()));
94 symbol(feature, symbols.get(1), new Delta(Handle.BL, new AffineTransform()));
95 symbol(feature, symbols.get(2), new Delta(Handle.TR, new AffineTransform()));
96 symbol(feature, symbols.get(3), new Delta(Handle.TL, new AffineTransform()));
97 break;
98 case 5:
99 symbol(feature, symbols.get(0), new Delta(Handle.BR, new AffineTransform()));
100 symbol(feature, symbols.get(1), new Delta(Handle.BL, new AffineTransform()));
101 symbol(feature, symbols.get(2), new Delta(Handle.TR, AffineTransform.getTranslateInstance(-bbox.width/2, 0)));
102 symbol(feature, symbols.get(3), new Delta(Handle.TC, new AffineTransform()));
103 symbol(feature, symbols.get(4), new Delta(Handle.TL, AffineTransform.getTranslateInstance(bbox.width/2, 0)));
104 break;
105 case 6:
106 symbol(feature, symbols.get(0), new Delta(Handle.BR, AffineTransform.getTranslateInstance(-bbox.width/2, 0)));
107 symbol(feature, symbols.get(1), new Delta(Handle.BC, new AffineTransform()));
108 symbol(feature, symbols.get(2), new Delta(Handle.BL, AffineTransform.getTranslateInstance(bbox.width/2, 0)));
109 symbol(feature, symbols.get(3), new Delta(Handle.TR, AffineTransform.getTranslateInstance(-bbox.width/2, 0)));
110 symbol(feature, symbols.get(4), new Delta(Handle.TC, new AffineTransform()));
111 symbol(feature, symbols.get(5), new Delta(Handle.TL, AffineTransform.getTranslateInstance(bbox.width/2, 0)));
112 break;
113 case 7:
114 symbol(feature, symbols.get(0), new Delta(Handle.BC, AffineTransform.getTranslateInstance(0, -bbox.height/2)));
115 symbol(feature, symbols.get(1), new Delta(Handle.RC, AffineTransform.getTranslateInstance(-bbox.width/2, 0)));
116 symbol(feature, symbols.get(2), new Delta(Handle.CC, new AffineTransform()));
117 symbol(feature, symbols.get(3), new Delta(Handle.LC, AffineTransform.getTranslateInstance(bbox.width/2, 0)));
118 symbol(feature, symbols.get(4), new Delta(Handle.TR, AffineTransform.getTranslateInstance(-bbox.width/2, bbox.height/2)));
119 symbol(feature, symbols.get(5), new Delta(Handle.TC, AffineTransform.getTranslateInstance(0, bbox.height/2)));
120 symbol(feature, symbols.get(6), new Delta(Handle.TL, AffineTransform.getTranslateInstance(bbox.width/2, bbox.height/2)));
121 break;
122 case 8:
123 symbol(feature, symbols.get(0), new Delta(Handle.BR, AffineTransform.getTranslateInstance(0, -bbox.height/2)));
124 symbol(feature, symbols.get(1), new Delta(Handle.BL, AffineTransform.getTranslateInstance(0, -bbox.height/2)));
125 symbol(feature, symbols.get(2), new Delta(Handle.RC, AffineTransform.getTranslateInstance(-bbox.width/2, 0)));
126 symbol(feature, symbols.get(3), new Delta(Handle.CC, new AffineTransform()));
127 symbol(feature, symbols.get(4), new Delta(Handle.LC, AffineTransform.getTranslateInstance(bbox.width/2, 0)));
128 symbol(feature, symbols.get(5), new Delta(Handle.TR, AffineTransform.getTranslateInstance(-bbox.width/2, bbox.height/2)));
129 symbol(feature, symbols.get(6), new Delta(Handle.TC, AffineTransform.getTranslateInstance(0, bbox.height/2)));
130 symbol(feature, symbols.get(7), new Delta(Handle.TL, AffineTransform.getTranslateInstance(bbox.width/2, bbox.height/2)));
131 break;
132 case 9:
133 symbol(feature, symbols.get(0), new Delta(Handle.BR, AffineTransform.getTranslateInstance(-bbox.width/2, -bbox.height/2)));
134 symbol(feature, symbols.get(1), new Delta(Handle.BC, AffineTransform.getTranslateInstance(0, -bbox.height/2)));
135 symbol(feature, symbols.get(2), new Delta(Handle.BL, AffineTransform.getTranslateInstance(bbox.width/2, -bbox.height/2)));
136 symbol(feature, symbols.get(3), new Delta(Handle.RC, AffineTransform.getTranslateInstance(-bbox.width/2, 0)));
137 symbol(feature, symbols.get(4), new Delta(Handle.CC, new AffineTransform()));
138 symbol(feature, symbols.get(5), new Delta(Handle.LC, AffineTransform.getTranslateInstance(bbox.width/2, 0)));
139 symbol(feature, symbols.get(6), new Delta(Handle.TR, AffineTransform.getTranslateInstance(-bbox.width/2, bbox.height/2)));
140 symbol(feature, symbols.get(7), new Delta(Handle.TC, AffineTransform.getTranslateInstance(0, bbox.height/2)));
141 symbol(feature, symbols.get(8), new Delta(Handle.TL, AffineTransform.getTranslateInstance(bbox.width/2, bbox.height/2)));
142 break;
143 }
144 }
145
146 private static Rectangle2D.Double symbolSize(Symbol symbol) {
147 Symbol ssymb = symbol;
148 while (ssymb != null) {
149 for (Instr item : symbol) {
150 if (item.type == Form.BBOX) {
151 return (Rectangle2D.Double) item.params;
152 }
153 if (item.type == Form.SYMB) {
154 ssymb = ((SubSymbol) item.params).instr;
155 break;
156 }
157 }
158 if (ssymb == symbol)
159 break;
160 }
161 return null;
162 }
163
164 public static void lineSymbols(Feature feature, Symbol prisymb, double space, Symbol secsymb, Symbol tersymb, int ratio, Color col) {
165 if ((feature.geom.prim == Pflag.NOSP) || (feature.geom.prim == Pflag.POINT))
166 return;
167 Rectangle2D.Double prect = symbolSize(prisymb);
168 Rectangle2D.Double srect = symbolSize(secsymb);
169 Rectangle2D.Double trect = symbolSize(tersymb);
170 if (srect == null)
171 ratio = 0;
172 if (prect != null) {
173 double psize = Math.abs(prect.getY()) * sScale;
174 double ssize = (srect != null) ? Math.abs(srect.getY()) * sScale : 0;
175 double tsize = (trect != null) ? Math.abs(srect.getY()) * sScale : 0;
176 Point2D prev = new Point2D.Double();
177 Point2D next = new Point2D.Double();
178 Point2D curr = new Point2D.Double();
179 Point2D succ = new Point2D.Double();
180 boolean gap = true;
181 boolean piv = false;
182 double len = 0;
183 double angle = 0;
184 int stcount = ratio;
185 boolean stflag = false;
186 Symbol symbol = prisymb;
187 GeomIterator git = map.new GeomIterator(feature.geom);
188 while (git.hasComp()) {
189 git.nextComp();
190 boolean first = true;
191 while (git.hasEdge()) {
192 git.nextEdge();
193 while (git.hasNode()) {
194 prev = next;
195 next = context.getPoint(git.next());
196 angle = Math.atan2(next.getY() - prev.getY(), next.getX() - prev.getX());
197 piv = true;
198 if (first) {
199 curr = succ = next;
200 gap = (space > 0);
201 stcount = ratio - 1;
202 symbol = prisymb;
203 len = gap ? psize * space * 0.5 : psize;
204 first = false;
205 } else {
206 while (curr.distance(next) >= len) {
207 if (piv) {
208 double rem = len;
209 double s = prev.distance(next);
210 double p = curr.distance(prev);
211 if ((s > 0) && (p > 0)) {
212 double n = curr.distance(next);
213 double theta = Math.acos((s * s + p * p - n * n) / 2 / s / p);
214 double phi = Math.asin(p / len * Math.sin(theta));
215 rem = len * Math.sin(Math.PI - theta - phi) / Math.sin(theta);
216 }
217 succ = new Point2D.Double(prev.getX() + (rem * Math.cos(angle)), prev.getY() + (rem * Math.sin(angle)));
218 piv = false;
219 } else {
220 succ = new Point2D.Double(curr.getX() + (len * Math.cos(angle)), curr.getY() + (len * Math.sin(angle)));
221 }
222 if (!gap) {
223 Symbols.drawSymbol(g2, symbol, sScale, curr.getX(), curr.getY(), new Scheme(col),
224 new Delta(Handle.BC, AffineTransform.getRotateInstance(Math.atan2((succ.getY() - curr.getY()), (succ.getX() - curr.getX())) + Math.toRadians(90))));
225 }
226 if (space > 0)
227 gap = !gap;
228 curr = succ;
229 len = gap ? (psize * space) : (--stcount == 0) ? (stflag ? tsize : ssize) : psize;
230 if (stcount == 0) {
231 symbol = stflag ? tersymb : secsymb;
232 if (trect != null)
233 stflag = !stflag;
234 stcount = ratio;
235 } else {
236 symbol = prisymb;
237 }
238 }
239 }
240 }
241 }
242 }
243 }
244 }
245
246 public static void lineVector(Feature feature, LineStyle style) {
247 Path2D.Double p = new Path2D.Double();
248 p.setWindingRule(GeneralPath.WIND_EVEN_ODD);
249 Point2D point;
250 GeomIterator git = map.new GeomIterator(feature.geom);
251 while (git.hasComp()) {
252 git.nextComp();
253 while (git.hasEdge()) {
254 git.nextEdge();
255 point = context.getPoint(git.next());
256 p.moveTo(point.getX(), point.getY());
257 while (git.hasNode()) {
258 point = context.getPoint(git.next());
259 p.lineTo(point.getX(), point.getY());
260 }
261 }
262 }
263 if (style.line != null) {
264 if (style.dash != null) {
265 float[] dash = new float[style.dash.length];
266 System.arraycopy(style.dash, 0, dash, 0, style.dash.length);
267 for (int i = 0; i < style.dash.length; i++) {
268 dash[i] *= (float) sScale;
269 }
270 g2.setStroke(new BasicStroke((float) (style.width * sScale), BasicStroke.CAP_BUTT, BasicStroke.JOIN_ROUND, 1, dash, 0));
271 } else {
272 g2.setStroke(new BasicStroke((float) (style.width * sScale), BasicStroke.CAP_BUTT, BasicStroke.JOIN_ROUND));
273 }
274 g2.setPaint(style.line);
275 g2.draw(p);
276 }
277 if (style.fill != null) {
278 g2.setPaint(style.fill);
279 g2.fill(p);
280 }
281 }
282
283 public static void lineCircle(Feature feature, LineStyle style, double radius, UniHLU units) {
284 switch (units) {
285 case HLU_FEET:
286 radius /= 6076;
287 break;
288 case HLU_KMTR:
289 radius /= 1.852;
290 break;
291 case HLU_HMTR:
292 radius /= 18.52;
293 break;
294 case HLU_SMIL:
295 radius /= 1.15078;
296 break;
297 case HLU_NMIL:
298 break;
299 default:
300 radius /= 1852;
301 break;
302 }
303 radius *= context.mile(feature);
304 Symbol circle = new Symbol();
305 if (style.fill != null) {
306 circle.add(new Instr(Form.FILL, style.fill));
307 circle.add(new Instr(Form.RSHP, new Ellipse2D.Double(-radius,-radius,radius*2,radius*2)));
308 }
309 circle.add(new Instr(Form.FILL, style.line));
310 circle.add(new Instr(Form.STRK, new BasicStroke(style.width, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER, 1, style.dash, 0)));
311 circle.add(new Instr(Form.ELPS, new Ellipse2D.Double(-radius,-radius,radius*2,radius*2)));
312 Point2D point = context.getPoint(feature.geom.centre);
313 Symbols.drawSymbol(g2, circle, 1, point.getX(), point.getY(), null, null);
314 }
315
316
317 public static void fillPattern(Feature feature, BufferedImage image) {
318 Path2D.Double p = new Path2D.Double();
319 p.setWindingRule(GeneralPath.WIND_EVEN_ODD);
320 Point2D point;
321 switch (feature.geom.prim) {
322 case POINT:
323 point = context.getPoint(feature.geom.centre);
324 g2.drawImage(image, new AffineTransformOp(AffineTransform.getScaleInstance(sScale, sScale), AffineTransformOp.TYPE_NEAREST_NEIGHBOR),
325 (int)(point.getX() - (50 * sScale)), (int)(point.getY() - (50 * sScale)));
326 break;
327 case AREA:
328 GeomIterator git = map.new GeomIterator(feature.geom);
329 while (git.hasComp()) {
330 git.nextComp();
331 while (git.hasEdge()) {
332 git.nextEdge();
333 point = context.getPoint(git.next());
334 p.moveTo(point.getX(), point.getY());
335 while (git.hasNode()) {
336 point = context.getPoint(git.next());
337 p.lineTo(point.getX(), point.getY());
338 }
339 }
340 }
341 g2.setPaint(new TexturePaint(image, new Rectangle(0, 0, 1 + (int)(100 * sScale), 1 + (int)(100 * sScale))));
342 g2.fill(p);
343 break;
344 default:
345 break;
346 }
347 }
348
349 public static void labelText(Feature feature, String str, Font font, Color tc) {
350 labelText(feature, str, font, tc, LabelStyle.NONE, null, null, null);
351 }
352 public static void labelText(Feature feature, String str, Font font, Color tc, Delta delta) {
353 labelText(feature, str, font, tc, LabelStyle.NONE, null, null, delta);
354 }
355 public static void labelText(Feature feature, String str, Font font, Color tc, LabelStyle style, Color fg) {
356 labelText(feature, str, font, tc, style, fg, null, null);
357 }
358 public static void labelText(Feature feature, String str, Font font, Color tc, LabelStyle style, Color fg, Color bg) {
359 labelText(feature, str, font, tc, style, fg, bg, null);
360 }
361 public static void labelText(Feature feature, String str, Font font, Color tc, LabelStyle style, Color fg, Delta delta) {
362 labelText(feature, str, font, tc, style, fg, null, delta);
363 }
364 public static void labelText(Feature feature, String str, Font font, Color tc, LabelStyle style, Color fg, Color bg, Delta delta) {
365 if (delta == null) delta = new Delta(Handle.CC);
366 if (bg == null) bg = new Color(0x00000000, true);
367 if ((str == null) || (str.isEmpty())) str = " ";
368 FontRenderContext frc = g2.getFontRenderContext();
369 GlyphVector gv = font.deriveFont((float)(font.getSize())).createGlyphVector(frc, str.equals(" ") ? "!" : str);
370 Rectangle2D bounds = gv.getVisualBounds();
371 double width = bounds.getWidth();
372 double height = bounds.getHeight();
373 Symbol label = new Symbol();
374 double lx, ly, tx, ty;
375 switch (style) {
376 case RRCT:
377 width += height * 1.0;
378 height *= 1.5;
379 if (width < height) width = height;
380 lx = -width / 2;
381 ly = -height / 2;
382 tx = lx + (height * 0.34);
383 ty = ly + (height * 0.17);
384 label.add(new Instr(Form.BBOX, new Rectangle2D.Double(lx,ly,width,height)));
385 label.add(new Instr(Form.FILL, bg));
386 label.add(new Instr(Form.RSHP, new RoundRectangle2D.Double(lx,ly,width,height,height,height)));
387 label.add(new Instr(Form.FILL, fg));
388 label.add(new Instr(Form.STRK, new BasicStroke(1 + (int)(height/10), BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER)));
389 label.add(new Instr(Form.RRCT, new RoundRectangle2D.Double(lx,ly,width,height,height,height)));
390 break;
391 case VCLR:
392 width += height * 1.0;
393 height *= 2.0;
394 if (width < height) width = height;
395 lx = -width / 2;
396 ly = -height / 2;
397 tx = lx + (height * 0.27);
398 ty = ly + (height * 0.25);
399 label.add(new Instr(Form.BBOX, new Rectangle2D.Double(lx,ly,width,height)));
400 label.add(new Instr(Form.FILL, bg));
401 label.add(new Instr(Form.RSHP, new RoundRectangle2D.Double(lx,ly,width,height,height,height)));
402 label.add(new Instr(Form.FILL, fg));
403 int sw = 1 + (int)(height/10);
404 double po = sw / 2;
405 label.add(new Instr(Form.STRK, new BasicStroke(sw, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER)));
406 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));
407 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));
408 label.add(new Instr(Form.PLIN, p));
409 break;
410 case PCLR:
411 width += height * 1.0;
412 height *= 2.0;
413 if (width < height) width = height;
414 lx = -width / 2;
415 ly = -height / 2;
416 tx = lx + (height * 0.27);
417 ty = ly + (height * 0.25);
418 label.add(new Instr(Form.BBOX, new Rectangle2D.Double(lx,ly,width,height)));
419 label.add(new Instr(Form.FILL, bg));
420 label.add(new Instr(Form.RSHP, new RoundRectangle2D.Double(lx,ly,width,height,height,height)));
421 label.add(new Instr(Form.FILL, fg));
422 sw = 1 + (int)(height/10);
423 po = sw / 2;
424 label.add(new Instr(Form.STRK, new BasicStroke(sw, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER)));
425 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));
426 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));
427 label.add(new Instr(Form.PLIN, p));
428 label.add(new Instr(Form.SYMB, new Symbols.SubSymbol(Areas.CableFlash, 1, 0, 0, null, new Delta(Handle.CC, new AffineTransform(0,-1,1,0,-width/2,0)))));
429 label.add(new Instr(Form.SYMB, new Symbols.SubSymbol(Areas.CableFlash, 1, 0, 0, null, new Delta(Handle.CC, new AffineTransform(0,-1,1,0,width/2,0)))));
430 break;
431 case HCLR:
432 width += height * 1.5;
433 height *= 1.5;
434 if (width < height) width = height;
435 lx = -width / 2;
436 ly = -height / 2;
437 tx = lx + (height * 0.5);
438 ty = ly + (height * 0.17);
439 label.add(new Instr(Form.BBOX, new Rectangle2D.Double(lx,ly,width,height)));
440 label.add(new Instr(Form.FILL, bg));
441 label.add(new Instr(Form.RSHP, new RoundRectangle2D.Double(lx,ly,width,height,height,height)));
442 label.add(new Instr(Form.FILL, fg));
443 sw = 1 + (int)(height/10);
444 double vo = height / 4;
445 label.add(new Instr(Form.STRK, new BasicStroke(sw, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER)));
446 p = new Path2D.Double(); p.moveTo(-width*0.4-sw,-ly-vo); p.lineTo(-width*0.4-sw,ly+vo); p.moveTo(-width*0.4-sw,0); p.lineTo(-width*0.4+sw,0);
447 p.moveTo(width*0.4+sw,-ly-vo); p.lineTo(width*0.4+sw,ly+vo); p.moveTo(width*0.4-sw,0); p.lineTo(width*0.4+sw,0);
448 label.add(new Instr(Form.PLIN, p));
449 break;
450 default:
451 lx = -width / 2;
452 ly = -height / 2;
453 tx = lx;
454 ty = ly;
455 label.add(new Instr(Form.BBOX, new Rectangle2D.Double(lx,ly,width,height)));
456 break;
457 }
458 label.add(new Instr(Form.TEXT, new Caption(str, font, tc, new Delta(Handle.TL, AffineTransform.getTranslateInstance(tx, ty)))));
459 Point2D point = context.getPoint(feature.geom.centre);
460 Symbols.drawSymbol(g2, label, sScale, point.getX(), point.getY(), null, delta);
461 }
462
463 public static void lineText(Feature feature, String str, Font font, Color colour, double offset, double dy) {
464 if (!str.isEmpty()) {
465 g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
466 g2.setPaint(colour);
467 FontRenderContext frc = g2.getFontRenderContext();
468 GlyphVector gv = font.deriveFont((float)(font.getSize()*sScale)).createGlyphVector(frc, (" " + str));
469 GeneralPath path = new GeneralPath();
470 Point2D prev = new Point2D.Double();
471 Point2D next = new Point2D.Double();
472 Point2D curr = new Point2D.Double();
473 Point2D succ = new Point2D.Double();
474 boolean piv = false;
475 double angle = 0;
476 int index = 0;
477 double gwidth = offset * (feature.geom.length * context.mile(feature) - gv.getLogicalBounds().getWidth()) + gv.getGlyphMetrics(0).getAdvance();
478 GeomIterator git = map.new GeomIterator(feature.geom);
479 while (git.hasComp()) {
480 git.nextComp();
481 boolean first = true;
482 while (git.hasEdge()) {
483 git.nextEdge();
484 while (git.hasNode()) {
485 prev = next;
486 next = context.getPoint(git.next());
487 angle = Math.atan2(next.getY() - prev.getY(), next.getX() - prev.getX());
488 piv = true;
489 if (first) {
490 curr = succ = next;
491 first = false;
492 } else {
493 while (curr.distance(next) >= gwidth) {
494 if (piv) {
495 double rem = gwidth;
496 double s = prev.distance(next);
497 double p = curr.distance(prev);
498 if ((s > 0) && (p > 0)) {
499 double n = curr.distance(next);
500 double theta = Math.acos((s * s + p * p - n * n) / 2 / s / p);
501 double phi = Math.asin(p / gwidth * Math.sin(theta));
502 rem = gwidth * Math.sin(Math.PI - theta - phi) / Math.sin(theta);
503 }
504 succ = new Point2D.Double(prev.getX() + (rem * Math.cos(angle)), prev.getY() + (rem * Math.sin(angle)));
505 piv = false;
506 } else {
507 succ = new Point2D.Double(curr.getX() + (gwidth * Math.cos(angle)), curr.getY() + (gwidth * Math.sin(angle)));
508 }
509 Shape shape = gv.getGlyphOutline(index);
510 Point2D point = gv.getGlyphPosition(index);
511 AffineTransform at = AffineTransform.getTranslateInstance(curr.getX(), curr.getY());
512 at.rotate(Math.atan2((succ.getY() - curr.getY()), (succ.getX() - curr.getX())));
513 at.translate(-point.getX(), -point.getY() + (dy * sScale));
514 path.append(at.createTransformedShape(shape), false);
515 curr = succ;
516 if (++index < gv.getNumGlyphs()) {
517 gwidth = gv.getGlyphMetrics(index).getAdvance();
518 } else {
519 g2.fill(path);
520 return;
521 }
522 }
523 }
524 }
525 }
526 }
527 }
528 }
529
530 public static void lightSector(Feature feature, Color col1, Color col2, double radius, double s1, double s2, boolean dir, String str) {
531// private static Point2D.Double radial(Feature feature, Snode centre, double radius, double angle) {
532// Point2D origin = Renderer.context.getPoint(centre);
533// return new Point2D.Double(origin.getX() - (radius * Renderer.context.mile(feature) * Math.sin(angle)), origin.getY() - (radius * Renderer.context.mile(feature) * Math.cos(angle)));
534//}
535
536 }
537}
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