svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.geometry / org.gvsig.fmap.geometry.impl / src / main / java / org / gvsig / fmap / geom / primitive / impl / Arc2D.java @ 40559
History | View | Annotate | Download (18.6 KB)
1 |
/**
|
---|---|
2 |
* gvSIG. Desktop Geographic Information System.
|
3 |
*
|
4 |
* Copyright (C) 2007-2013 gvSIG Association.
|
5 |
*
|
6 |
* This program is free software; you can redistribute it and/or
|
7 |
* modify it under the terms of the GNU General Public License
|
8 |
* as published by the Free Software Foundation; either version 3
|
9 |
* of the License, or (at your option) any later version.
|
10 |
*
|
11 |
* This program 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
|
14 |
* GNU General Public License for more details.
|
15 |
*
|
16 |
* You should have received a copy of the GNU General Public License
|
17 |
* along with this program; if not, write to the Free Software
|
18 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
19 |
* MA 02110-1301, USA.
|
20 |
*
|
21 |
* For any additional information, do not hesitate to contact us
|
22 |
* at info AT gvsig.com, or visit our website www.gvsig.com.
|
23 |
*/
|
24 |
package org.gvsig.fmap.geom.primitive.impl; |
25 |
|
26 |
import java.awt.geom.AffineTransform; |
27 |
import java.awt.geom.Point2D; |
28 |
import java.awt.geom.Rectangle2D; |
29 |
import java.util.ArrayList; |
30 |
|
31 |
import org.cresques.cts.IProjection; |
32 |
import org.slf4j.Logger; |
33 |
import org.slf4j.LoggerFactory; |
34 |
|
35 |
import org.gvsig.fmap.geom.Geometry; |
36 |
import org.gvsig.fmap.geom.GeometryLocator; |
37 |
import org.gvsig.fmap.geom.GeometryManager; |
38 |
import org.gvsig.fmap.geom.handler.AbstractHandler; |
39 |
import org.gvsig.fmap.geom.handler.CenterHandler; |
40 |
import org.gvsig.fmap.geom.handler.FinalHandler; |
41 |
import org.gvsig.fmap.geom.handler.Handler; |
42 |
import org.gvsig.fmap.geom.primitive.Arc; |
43 |
import org.gvsig.fmap.geom.primitive.FShape; |
44 |
import org.gvsig.fmap.geom.primitive.GeneralPathX; |
45 |
import org.gvsig.fmap.geom.primitive.Point; |
46 |
import org.gvsig.fmap.geom.type.GeometryType; |
47 |
import org.gvsig.fmap.geom.util.UtilFunctions; |
48 |
|
49 |
|
50 |
|
51 |
/**
|
52 |
* DOCUMENT ME!
|
53 |
*
|
54 |
* @author Vicente Caballero Navarro
|
55 |
*/
|
56 |
public class Arc2D extends Curve2D implements Arc { |
57 |
private static final long serialVersionUID = 6416027005106924030L; |
58 |
|
59 |
private static final Logger logger = LoggerFactory.getLogger(Arc2D.class); |
60 |
|
61 |
private Point2D init; |
62 |
|
63 |
/**
|
64 |
* This is the middle point (belongs to the arc), not the center
|
65 |
* of the circle/ellipse
|
66 |
*/
|
67 |
private Point2D middle; |
68 |
private Point2D end; |
69 |
|
70 |
private static final GeometryManager geomManager = GeometryLocator.getGeometryManager(); |
71 |
|
72 |
/**
|
73 |
* The constructor with the GeometryType like and argument
|
74 |
* is used by the {@link GeometryType}{@link #create()}
|
75 |
* to create the geometry
|
76 |
* @param type
|
77 |
* The geometry type
|
78 |
*/
|
79 |
public Arc2D(GeometryType geometryType) { |
80 |
super(geometryType);
|
81 |
} |
82 |
|
83 |
/**
|
84 |
* Constructor used in the {@link Geometry#cloneGeometry()} method
|
85 |
* @param id
|
86 |
* @param projection
|
87 |
* @param gpx
|
88 |
* @param i
|
89 |
* @param c
|
90 |
* @param e
|
91 |
*/
|
92 |
protected Arc2D(GeometryType geometryType, String id, IProjection projection, GeneralPathX gpx, Point2D i,Point2D c, Point2D e) { |
93 |
super(geometryType, id, projection, gpx);
|
94 |
init=i; |
95 |
middle=c; |
96 |
end=e; |
97 |
} |
98 |
|
99 |
/* (non-Javadoc)
|
100 |
* @see com.iver.cit.gvsig.fmap.core.FShape#cloneFShape()
|
101 |
*/
|
102 |
public FShape cloneFShape() {
|
103 |
Arc2D arc = new Arc2D(getGeometryType(), id, projection, (GeneralPathX) gp.clone(),init,middle,end); |
104 |
return arc;
|
105 |
} |
106 |
|
107 |
/*
|
108 |
* (non-Javadoc)
|
109 |
* @see org.gvsig.fmap.geom.primitive.impl.OrientablePrimitive2D#transform(java.awt.geom.AffineTransform)
|
110 |
*/
|
111 |
public void transform(AffineTransform at) { |
112 |
|
113 |
if (at == null) { |
114 |
return;
|
115 |
} |
116 |
|
117 |
gp.transform(at); |
118 |
InitHandler inithandler=(InitHandler)getStretchingHandlers()[0];
|
119 |
//CenterHandler centerhandler=(CenterHandler)getHandlers()[1];
|
120 |
EndHandler endhandler=(EndHandler)getStretchingHandlers()[1];
|
121 |
Point2D aux1=new Point2D.Double(); |
122 |
Point2D aux2=new Point2D.Double(); |
123 |
Point2D aux3=new Point2D.Double(); |
124 |
at.transform(inithandler.getPoint(),aux1); |
125 |
inithandler.setPoint(aux1); |
126 |
//at.transform(centerhandler.getPoint(),aux2);
|
127 |
//centerhandler.setPoint(aux2);
|
128 |
at.transform(endhandler.getPoint(),aux3); |
129 |
endhandler.setPoint(aux3); |
130 |
CenterSelHandler centerhandler=(CenterSelHandler)getSelectHandlers()[1];
|
131 |
at.transform(centerhandler.getPoint(),aux2); |
132 |
centerhandler.setPoint(aux2); |
133 |
|
134 |
} |
135 |
|
136 |
/*
|
137 |
* (non-Javadoc)
|
138 |
* @see org.gvsig.fmap.geom.primitive.impl.Curve2D#getShapeType()
|
139 |
*/
|
140 |
public int getShapeType() { |
141 |
return TYPES.ARC;
|
142 |
} |
143 |
|
144 |
/*
|
145 |
* (non-Javadoc)
|
146 |
* @see org.gvsig.fmap.geom.primitive.impl.OrientablePrimitive2D#getStretchingHandlers()
|
147 |
*/
|
148 |
public Handler[] getStretchingHandlers() { |
149 |
ArrayList handlers = new ArrayList(); |
150 |
|
151 |
handlers.add(new InitHandler(0, init.getX(), init.getY())); |
152 |
//handlers.add(new CenterHandler(1, center.getX(), center.getY()));
|
153 |
handlers.add(new EndHandler(1, end.getX(), end.getY())); |
154 |
|
155 |
return (Handler[]) handlers.toArray(new Handler[0]); |
156 |
} |
157 |
|
158 |
/*
|
159 |
* (non-Javadoc)
|
160 |
* @see org.gvsig.fmap.geom.primitive.impl.OrientablePrimitive2D#getSelectHandlers()
|
161 |
*/
|
162 |
public Handler[] getSelectHandlers() { |
163 |
ArrayList handlers = new ArrayList(); |
164 |
|
165 |
handlers.add(new InitSelHandler(0, init.getX(), init.getY())); |
166 |
handlers.add(new CenterSelHandler(1, middle.getX(), middle.getY())); |
167 |
handlers.add(new EndSelHandler(2, end.getX(), end.getY())); |
168 |
|
169 |
return (Handler[]) handlers.toArray(new Handler[0]); |
170 |
} |
171 |
/**
|
172 |
* DOCUMENT ME!
|
173 |
*
|
174 |
* @author Vicente Caballero Navarro
|
175 |
*/
|
176 |
class CenterSelHandler extends AbstractHandler implements CenterHandler{ |
177 |
/**
|
178 |
* Crea un nuevo PointHandler.
|
179 |
*
|
180 |
* @param i DOCUMENT ME!
|
181 |
* @param x DOCUMENT ME!
|
182 |
* @param y DOCUMENT ME!
|
183 |
*/
|
184 |
public CenterSelHandler(int i, double x, double y) { |
185 |
middle = new Point2D.Double(x, y); |
186 |
index = i; |
187 |
} |
188 |
|
189 |
/**
|
190 |
* DOCUMENT ME!
|
191 |
*
|
192 |
* @param x DOCUMENT ME!
|
193 |
* @param y DOCUMENT ME!
|
194 |
*
|
195 |
* @return DOCUMENT ME!
|
196 |
*/
|
197 |
public void move(double x, double y) { |
198 |
} |
199 |
public void setPoint(Point2D p){ |
200 |
middle=p; |
201 |
} |
202 |
public Point2D getPoint(){ |
203 |
return middle;
|
204 |
} |
205 |
|
206 |
/**
|
207 |
* @see org.gvsig.fmap.geom.handler.Handler#set(double, double)
|
208 |
*/
|
209 |
public void set(double x, double y) { |
210 |
middle=new Point2D.Double(x,y); |
211 |
java.awt.geom.Arc2D arco = UtilFunctions.createArc(init, middle, end); |
212 |
gp = new GeneralPathX(arco.getPathIterator(null)); |
213 |
} |
214 |
} |
215 |
|
216 |
/**
|
217 |
* DOCUMENT ME!
|
218 |
*
|
219 |
* @author Vicente Caballero Navarro
|
220 |
*/
|
221 |
class InitHandler extends AbstractHandler implements FinalHandler{ |
222 |
/**
|
223 |
* Crea un nuevo PointHandler.
|
224 |
*
|
225 |
* @param i DOCUMENT ME!
|
226 |
* @param x DOCUMENT ME!
|
227 |
* @param y DOCUMENT ME!
|
228 |
*/
|
229 |
public InitHandler(int i, double x, double y) { |
230 |
init = new Point2D.Double(x, y); |
231 |
index = i; |
232 |
} |
233 |
|
234 |
/**
|
235 |
* DOCUMENT ME!
|
236 |
*
|
237 |
* @param x DOCUMENT ME!
|
238 |
* @param y DOCUMENT ME!
|
239 |
*
|
240 |
* @return DOCUMENT ME!
|
241 |
*/
|
242 |
public void move(double x, double y) { |
243 |
Point2D mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
244 |
double dist=mediop.distance(middle);
|
245 |
init=new Point2D.Double(init.getX()+x,init.getY()+y); |
246 |
|
247 |
mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
248 |
Point2D[] perp=UtilFunctions.getPerpendicular(init,end,mediop); |
249 |
if (UtilFunctions.getAngle(end,init)<=Math.PI){ |
250 |
dist=-dist; |
251 |
} |
252 |
middle=UtilFunctions.getPoint(mediop,perp[1],dist);
|
253 |
|
254 |
java.awt.geom.Arc2D arco = UtilFunctions.createArc(init,middle, end); |
255 |
gp=new GeneralPathX(arco.getPathIterator(null)); |
256 |
} |
257 |
public void setPoint(Point2D p){ |
258 |
init=p; |
259 |
} |
260 |
public Point2D getPoint(){ |
261 |
return init;
|
262 |
} |
263 |
|
264 |
/**
|
265 |
* @see org.gvsig.fmap.geom.handler.Handler#set(double, double)
|
266 |
*/
|
267 |
public void set(double x, double y) { |
268 |
} |
269 |
} |
270 |
|
271 |
/**
|
272 |
* DOCUMENT ME!
|
273 |
*
|
274 |
* @author Vicente Caballero Navarro
|
275 |
*/
|
276 |
class EndHandler extends AbstractHandler implements FinalHandler{ |
277 |
/**
|
278 |
* Crea un nuevo PointHandler.
|
279 |
*
|
280 |
* @param i DOCUMENT ME!
|
281 |
* @param x DOCUMENT ME!
|
282 |
* @param y DOCUMENT ME!
|
283 |
*/
|
284 |
public EndHandler(int i, double x, double y) { |
285 |
end = new Point2D.Double(x, y); |
286 |
index = i; |
287 |
} |
288 |
|
289 |
/**
|
290 |
* DOCUMENT ME!
|
291 |
*
|
292 |
* @param x DOCUMENT ME!
|
293 |
* @param y DOCUMENT ME!
|
294 |
*
|
295 |
* @return DOCUMENT ME!
|
296 |
*/
|
297 |
public void move(double x, double y) { |
298 |
Point2D mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
299 |
double dist=mediop.distance(middle);
|
300 |
end=new Point2D.Double(end.getX()+x,end.getY()+y); |
301 |
|
302 |
mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
303 |
Point2D[] perp=UtilFunctions.getPerpendicular(init,end,mediop); |
304 |
if (UtilFunctions.getAngle(end,init)<=Math.PI){ |
305 |
dist=-dist; |
306 |
} |
307 |
middle=UtilFunctions.getPoint(mediop,perp[1],dist);
|
308 |
|
309 |
java.awt.geom.Arc2D arco = UtilFunctions.createArc(init,middle, end); |
310 |
gp=new GeneralPathX(arco.getPathIterator(null)); |
311 |
} |
312 |
public void setPoint(Point2D p){ |
313 |
end=p; |
314 |
} |
315 |
public Point2D getPoint(){ |
316 |
return end;
|
317 |
} |
318 |
|
319 |
/**
|
320 |
* @see org.gvsig.fmap.geom.handler.Handler#set(double, double)
|
321 |
*/
|
322 |
public void set(double x, double y) { |
323 |
|
324 |
} |
325 |
} |
326 |
|
327 |
/**
|
328 |
* DOCUMENT ME!
|
329 |
*
|
330 |
* @author Vicente Caballero Navarro
|
331 |
*/
|
332 |
class InitSelHandler extends AbstractHandler implements FinalHandler{ |
333 |
/**
|
334 |
* Crea un nuevo PointHandler.
|
335 |
*
|
336 |
* @param i DOCUMENT ME!
|
337 |
* @param x DOCUMENT ME!
|
338 |
* @param y DOCUMENT ME!
|
339 |
*/
|
340 |
public InitSelHandler(int i, double x, double y) { |
341 |
init = new Point2D.Double(x, y); |
342 |
index = i; |
343 |
} |
344 |
|
345 |
/**
|
346 |
* DOCUMENT ME!
|
347 |
*
|
348 |
* @param x DOCUMENT ME!
|
349 |
* @param y DOCUMENT ME!
|
350 |
*
|
351 |
* @return DOCUMENT ME!
|
352 |
*/
|
353 |
public void move(double x, double y) { |
354 |
Point2D mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
355 |
double dist=mediop.distance(middle);
|
356 |
init=new Point2D.Double(init.getX()+x,init.getY()+y); |
357 |
|
358 |
mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
359 |
Point2D[] perp=UtilFunctions.getPerpendicular(init,end,mediop); |
360 |
if (UtilFunctions.getAngle(end,init)<=Math.PI){ |
361 |
dist=-dist; |
362 |
} |
363 |
middle=UtilFunctions.getPoint(mediop,perp[1],dist);
|
364 |
|
365 |
java.awt.geom.Arc2D arco = UtilFunctions.createArc(init,middle, end); |
366 |
gp=new GeneralPathX(arco.getPathIterator(null)); |
367 |
} |
368 |
public void setPoint(Point2D p){ |
369 |
init=p; |
370 |
} |
371 |
public Point2D getPoint(){ |
372 |
return init;
|
373 |
} |
374 |
|
375 |
/**
|
376 |
* @see org.gvsig.fmap.geom.handler.Handler#set(double, double)
|
377 |
*/
|
378 |
public void set(double x, double y) { |
379 |
Point2D mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
380 |
double dist=mediop.distance(middle);
|
381 |
init=new Point2D.Double(x,y); |
382 |
|
383 |
mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
384 |
// TODO comentado para quitar warning: Point2D[] perp=UtilFunctions.getPerpendicular(init,end,mediop);
|
385 |
if (UtilFunctions.getAngle(end,init)<=Math.PI){ |
386 |
dist=-dist; |
387 |
} |
388 |
///center=TrigonometricalFunctions.getPoint(mediop,perp[1],dist);
|
389 |
java.awt.geom.Arc2D arco = UtilFunctions.createArc(init,middle, end); |
390 |
gp=new GeneralPathX(arco.getPathIterator(null)); |
391 |
} |
392 |
} |
393 |
|
394 |
/**
|
395 |
* DOCUMENT ME!
|
396 |
*
|
397 |
* @author Vicente Caballero Navarro
|
398 |
*/
|
399 |
class EndSelHandler extends AbstractHandler implements FinalHandler{ |
400 |
/**
|
401 |
* Crea un nuevo PointHandler.
|
402 |
*
|
403 |
* @param i DOCUMENT ME!
|
404 |
* @param x DOCUMENT ME!
|
405 |
* @param y DOCUMENT ME!
|
406 |
*/
|
407 |
public EndSelHandler(int i, double x, double y) { |
408 |
end = new Point2D.Double(x, y); |
409 |
index = i; |
410 |
} |
411 |
|
412 |
/**
|
413 |
* DOCUMENT ME!
|
414 |
*
|
415 |
* @param x DOCUMENT ME!
|
416 |
* @param y DOCUMENT ME!
|
417 |
*
|
418 |
* @return DOCUMENT ME!
|
419 |
*/
|
420 |
public void move(double x, double y) { |
421 |
Point2D mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
422 |
double dist=mediop.distance(middle);
|
423 |
end=new Point2D.Double(end.getX()+x,end.getY()+y); |
424 |
|
425 |
mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
426 |
Point2D[] perp=UtilFunctions.getPerpendicular(init,end,mediop); |
427 |
if (UtilFunctions.getAngle(end,init)<=Math.PI){ |
428 |
dist=-dist; |
429 |
} |
430 |
middle=UtilFunctions.getPoint(mediop,perp[1],dist);
|
431 |
|
432 |
java.awt.geom.Arc2D arco = UtilFunctions.createArc(init,middle, end); |
433 |
gp=new GeneralPathX(arco.getPathIterator(null)); |
434 |
} |
435 |
public void setPoint(Point2D p){ |
436 |
end=p; |
437 |
} |
438 |
public Point2D getPoint(){ |
439 |
return end;
|
440 |
} |
441 |
|
442 |
/**
|
443 |
* @see org.gvsig.fmap.geom.handler.Handler#set(double, double)
|
444 |
*/
|
445 |
public void set(double x, double y) { |
446 |
Point2D mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
447 |
double dist=mediop.distance(middle);
|
448 |
end=new Point2D.Double(x,y); |
449 |
|
450 |
mediop=new Point2D.Double((init.getX()+end.getX())/2,(init.getY()+end.getY())/2); |
451 |
// TODO comentado para quitar warning: Point2D[] perp=UtilFunctions.getPerpendicular(init,end,mediop);
|
452 |
if (UtilFunctions.getAngle(end,init)<=Math.PI){ |
453 |
dist=-dist; |
454 |
} |
455 |
///center=TrigonometricalFunctions.getPoint(mediop,perp[1],dist);
|
456 |
java.awt.geom.Arc2D arco = UtilFunctions.createArc(init,middle, end); |
457 |
gp=new GeneralPathX(arco.getPathIterator(null)); |
458 |
} |
459 |
} |
460 |
|
461 |
/* (non-Javadoc)
|
462 |
* @see com.iver.cit.gvsig.fmap.core.FPolyline2D#intersects(java.awt.geom.Rectangle2D)
|
463 |
*/
|
464 |
public boolean intersects(Rectangle2D r) { |
465 |
return gp.intersects(r);
|
466 |
} |
467 |
|
468 |
/* (non-Javadoc)
|
469 |
* @see org.gvsig.fmap.geom.primitive.Arc#setPoints(org.gvsig.fmap.geom.primitive.Point, org.gvsig.fmap.geom.primitive.Point, org.gvsig.fmap.geom.primitive.Point)
|
470 |
*/
|
471 |
public void setPoints(Point p1, Point p2, Point p3) { |
472 |
Point2D _p1 = new java.awt.geom.Point2D.Double(p1.getCoordinateAt(0), p1.getCoordinateAt(1)); |
473 |
Point2D _p2 = new java.awt.geom.Point2D.Double(p2.getCoordinateAt(0), p2.getCoordinateAt(1)); |
474 |
Point2D _p3 = new java.awt.geom.Point2D.Double(p3.getCoordinateAt(0), p3.getCoordinateAt(1)); |
475 |
setPoints(_p1, _p2, _p3); |
476 |
} |
477 |
|
478 |
/* (non-Javadoc)
|
479 |
* @see org.gvsig.fmap.geom.primitive.Curve2D#setGeneralPath(org.gvsig.fmap.geom.primitive.GeneralPathX)
|
480 |
*/
|
481 |
public void setGeneralPath(GeneralPathX generalPathX) { |
482 |
throw new UnsupportedOperationException("Use setPoints(Point p1, Point p2, Point p3)"); |
483 |
} |
484 |
|
485 |
/* (non-Javadoc)
|
486 |
* @see org.gvsig.fmap.geom.primitive.Arc#setPoints(java.awt.geom.Point2D, java.awt.geom.Point2D, java.awt.geom.Point2D)
|
487 |
*/
|
488 |
private void setPoints(Point2D p1, Point2D p2, Point2D p3) { |
489 |
java.awt.geom.Arc2D arco = UtilFunctions.createArc(p1, p2, p3); |
490 |
if (arco == null) { |
491 |
logger.info("Did not set arc points (probably aligned points): "
|
492 |
+ p1.getX() + " " + p1.getY() + " :: " |
493 |
+ p2.getX() + " " + p2.getY() + " :: " |
494 |
+ p3.getX() + " " + p3.getY());
|
495 |
throw new IllegalArgumentException("Did not set arc points (probably aligned points)."); |
496 |
} |
497 |
this.gp = new GeneralPathX(arco.getPathIterator(null)); |
498 |
this.init = p1;
|
499 |
this.middle = p2;
|
500 |
this.end = p3;
|
501 |
} |
502 |
|
503 |
/* (non-Javadoc)
|
504 |
* @see org.gvsig.fmap.geom.primitive.Arc#setPoints(org.gvsig.fmap.geom.primitive.Point, double, double, double)
|
505 |
*/
|
506 |
public void setPoints(Point center, double radius, double initAngle, |
507 |
double angleExt) {
|
508 |
Point2D _center = new java.awt.geom.Point2D.Double(center.getCoordinateAt(0), center.getCoordinateAt(1)); |
509 |
setPoints(_center, radius, initAngle, angleExt); |
510 |
} |
511 |
|
512 |
/* (non-Javadoc)
|
513 |
* @see org.gvsig.fmap.geom.primitive.Arc#setPointsStartExt(org.gvsig.fmap.geom.primitive.Point, double, double, double)
|
514 |
*/
|
515 |
public void setPointsStartExt(Point center, double radius, |
516 |
double startAngle, double angleExt) { |
517 |
|
518 |
setPoints(center, radius, startAngle, angleExt); |
519 |
} |
520 |
|
521 |
/* (non-Javadoc)
|
522 |
* @see org.gvsig.fmap.geom.primitive.Arc#setPointsStartEnd(org.gvsig.fmap.geom.primitive.Point, double, double, double)
|
523 |
*/
|
524 |
public void setPointsStartEnd(Point center, double radius, |
525 |
double startAngle, double endAngle) { |
526 |
|
527 |
if (startAngle == endAngle) {
|
528 |
setPointsStartExt(center, radius, startAngle, 0);
|
529 |
} else {
|
530 |
|
531 |
/*
|
532 |
* Normalize then force clockwise:
|
533 |
*/
|
534 |
double norm_start = normalizeAngle(startAngle);
|
535 |
double norm_end = normalizeAngle(endAngle);
|
536 |
double ang_ext = 0; |
537 |
|
538 |
// clockwise
|
539 |
// ang_ext must be positive
|
540 |
if (norm_start >= norm_end) {
|
541 |
ang_ext = norm_start - norm_end; |
542 |
} else {
|
543 |
ang_ext = 2 * Math.PI - (norm_end - norm_start); |
544 |
} |
545 |
|
546 |
// finally call other method with ang_ext
|
547 |
setPointsStartExt(center, radius, startAngle, ang_ext); |
548 |
} |
549 |
} |
550 |
|
551 |
/**
|
552 |
* Leaves the angle between PI and -PI
|
553 |
* @param angle (radians)
|
554 |
* @return
|
555 |
*/
|
556 |
private double normalizeAngle(double angle) { |
557 |
|
558 |
if (angle > -Math.PI && angle <= Math.PI) { |
559 |
return angle;
|
560 |
} |
561 |
|
562 |
if (angle == Double.NEGATIVE_INFINITY |
563 |
|| angle == Double.POSITIVE_INFINITY) {
|
564 |
return 0; |
565 |
} |
566 |
|
567 |
double abs_ang = Math.abs(angle); |
568 |
double remove = Math.floor(abs_ang / (2 * Math.PI)); |
569 |
remove = remove * 2 * Math.PI; |
570 |
double resp = 0; |
571 |
|
572 |
if (angle > 0) { |
573 |
resp = angle - remove; |
574 |
if (resp > Math.PI) { |
575 |
// final adjustment
|
576 |
resp = resp - 2 * Math.PI; |
577 |
} |
578 |
} else {
|
579 |
resp = angle + remove; |
580 |
if (resp <= -Math.PI) { |
581 |
// final adjustment
|
582 |
resp = resp + 2 * Math.PI; |
583 |
} |
584 |
} |
585 |
|
586 |
return resp;
|
587 |
} |
588 |
|
589 |
/* (non-Javadoc)
|
590 |
* @see org.gvsig.fmap.geom.primitive.Arc#setPoints(java.awt.geom.Point2D, double, double, double)
|
591 |
*/
|
592 |
private void setPoints(Point2D center, double radius, double initAngle, |
593 |
double angleExt) {
|
594 |
java.awt.geom.Arc2D arco = UtilFunctions.createArc(center, radius, initAngle, angleExt); |
595 |
|
596 |
java.awt.geom.Arc2D semiarco = UtilFunctions.createArc(center, radius, initAngle, angleExt/2);
|
597 |
if (arco == null || semiarco == null) { |
598 |
logger.info("Did not set arc points (probably aligned points)");
|
599 |
return;
|
600 |
} |
601 |
|
602 |
Point2D p1 = arco.getStartPoint();
|
603 |
Point2D p2 = semiarco.getEndPoint();
|
604 |
Point2D p3 = arco.getEndPoint();
|
605 |
|
606 |
setPoints(p1, p2, p3); |
607 |
} |
608 |
|
609 |
|
610 |
|
611 |
/* (non-Javadoc)
|
612 |
* @see org.gvsig.fmap.geom.primitive.Curve2D#setPoints(org.gvsig.fmap.geom.primitive.Point, org.gvsig.fmap.geom.primitive.Point)
|
613 |
*/
|
614 |
public void setPoints(Point startPoint, Point endPoint) { |
615 |
throw new UnsupportedOperationException("Use setGeneralPathX"); |
616 |
} |
617 |
|
618 |
/* (non-Javadoc)
|
619 |
* @see org.gvsig.fmap.geom.primitive.Arc#getEndPoint()
|
620 |
*/
|
621 |
public Point getEndPoint() { |
622 |
return new org.gvsig.fmap.geom.primitive.impl.Point2D(end.getX(), end.getY()); |
623 |
} |
624 |
|
625 |
/* (non-Javadoc)
|
626 |
* @see org.gvsig.fmap.geom.primitive.Arc#getInitPoint()
|
627 |
*/
|
628 |
public Point getInitPoint() { |
629 |
return new org.gvsig.fmap.geom.primitive.impl.Point2D(init.getX(), init.getY()); |
630 |
} |
631 |
|
632 |
/* (non-Javadoc)
|
633 |
* @see org.gvsig.fmap.geom.primitive.Arc#getCenterPoint()
|
634 |
*/
|
635 |
public Point getCenterPoint() { |
636 |
Point2D p = UtilFunctions.getCenter(init, middle,end);
|
637 |
try {
|
638 |
return new org.gvsig.fmap.geom.primitive.impl.Point2D(p.getX(), p.getY()); |
639 |
} catch (Exception e) { |
640 |
return null; |
641 |
} |
642 |
} |
643 |
|
644 |
|
645 |
|
646 |
|
647 |
} |