Revision 30313
| branches/v2_0_0_prep/applications/appgvSIG/src/org/gvsig/app/project/documents/view/toolListeners/snapping/snappers/IntersectionPointSnapper.java | ||
|---|---|---|
| 24 | 24 |
*/ |
| 25 | 25 |
public class IntersectionPointSnapper extends AbstractSnapper |
| 26 | 26 |
implements ISnapperGeometriesVectorial {
|
| 27 |
private Geometry[] geometries; |
|
| 27 |
private static int maxPointsGeom=200; |
|
| 28 |
private Geometry[] geometries; |
|
| 28 | 29 |
public IntersectionPointSnapper() {
|
| 29 | 30 |
System.err.println("Construido IntersectionPoinSnapper");
|
| 30 | 31 |
} |
| ... | ... | |
| 45 | 46 |
} |
| 46 | 47 |
|
| 47 | 48 |
for (int i = 0; i < geometries.length; i++) {
|
| 48 |
Point2D r = intersects2(geom, geometries[i], point, tolerance);
|
|
| 49 |
Point2D r = intersects(geom, geometries[i], point, tolerance); |
|
| 49 | 50 |
|
| 50 | 51 |
if (r != null) {
|
| 51 | 52 |
result = r; |
| ... | ... | |
| 55 | 56 |
return result; |
| 56 | 57 |
} |
| 57 | 58 |
|
| 58 |
private Point2D intersects2(Geometry g1, Geometry g2, Point2D point,
|
|
| 59 |
private Point2D intersects(Geometry g1, Geometry g2, Point2D point, |
|
| 59 | 60 |
double tolerance) {
|
| 60 |
com.vividsolutions.jts.geom.Geometry intersection=Converter.geometryToJts(g1).intersection(Converter.geometryToJts(g2)); |
|
| 61 |
com.vividsolutions.jts.geom.Geometry g1JTS=Converter.geometryToJts(g1); |
|
| 62 |
com.vividsolutions.jts.geom.Geometry g2JTS=Converter.geometryToJts(g2); |
|
| 63 |
if (g1JTS.getNumPoints()>maxPointsGeom || g2JTS.getNumPoints()>maxPointsGeom){
|
|
| 64 |
return null; |
|
| 65 |
} |
|
| 66 |
com.vividsolutions.jts.geom.Geometry intersection=g1JTS.intersection(g2JTS); |
|
| 61 | 67 |
Geometry g =null; |
| 62 | 68 |
try {
|
| 63 | 69 |
g = Converter.jtsToGeometry(intersection); |
| ... | ... | |
| 70 | 76 |
return null; |
| 71 | 77 |
} |
| 72 | 78 |
|
| 73 |
/** |
|
| 74 |
* DOCUMENT ME! |
|
| 75 |
* |
|
| 76 |
* @param g1 DOCUMENT ME! |
|
| 77 |
* @param g2 DOCUMENT ME! |
|
| 78 |
* @param point DOCUMENT ME! |
|
| 79 |
* @param tolerance DOCUMENT ME! |
|
| 80 |
* |
|
| 81 |
* @return DOCUMENT ME! |
|
| 82 |
*/ |
|
| 83 |
private Point2D intersects(Geometry g1, Geometry g2, Point2D point, |
|
| 84 |
double tolerance) {
|
|
| 85 |
Point2D resul = null; |
|
| 86 |
Coordinate c = new Coordinate(point.getX(), point.getY()); |
|
| 87 |
PathIterator theIterator = g1.getPathIterator(null, Converter.FLATNESS); |
|
| 88 |
double[] theData = new double[6]; |
|
| 89 |
Coordinate from = null; |
|
| 90 |
Coordinate first = null; |
|
| 91 |
LineSegment[] lines = getLines(g2); |
|
| 92 |
while (!theIterator.isDone()) {
|
|
| 93 |
int theType = theIterator.currentSegment(theData); |
|
| 94 |
|
|
| 95 |
switch (theType) {
|
|
| 96 |
case PathIterator.SEG_MOVETO: |
|
| 97 |
from = new Coordinate(theData[0], theData[1]); |
|
| 98 |
first = from; |
|
| 99 |
|
|
| 100 |
break; |
|
| 101 |
|
|
| 102 |
case PathIterator.SEG_LINETO: |
|
| 103 |
|
|
| 104 |
Coordinate to = new Coordinate(theData[0], theData[1]); |
|
| 105 |
LineSegment segmentLine = new LineSegment(from,to); |
|
| 106 |
for (int i = 0; i < lines.length; i++) {
|
|
| 107 |
// if (lines[i].equals(segmentLine)) {
|
|
| 108 |
// continue; |
|
| 109 |
// } |
|
| 110 |
Coordinate intersects = segmentLine.intersection(lines[i]); |
|
| 111 |
if (intersects == null || lines[i].equals(segmentLine)) {
|
|
| 112 |
continue; |
|
| 113 |
} |
|
| 114 |
|
|
| 115 |
double dist = c.distance(intersects); |
|
| 116 |
|
|
| 117 |
if ((dist < tolerance)) {
|
|
| 118 |
resul = new Point2D.Double(intersects.x, intersects.y); |
|
| 119 |
return resul; |
|
| 120 |
} |
|
| 121 |
} |
|
| 122 |
|
|
| 123 |
from = to; |
|
| 124 |
|
|
| 125 |
break; |
|
| 126 |
|
|
| 127 |
case PathIterator.SEG_CLOSE: |
|
| 128 |
LineSegment segment = new LineSegment(from,first); |
|
| 129 |
|
|
| 130 |
for (int i = 0; i < lines.length; i++) {
|
|
| 131 |
// if (lines[i].equals(segment)) {
|
|
| 132 |
// continue; |
|
| 133 |
// } |
|
| 134 |
|
|
| 135 |
Coordinate intersects = segment.intersection(lines[i]); |
|
| 136 |
|
|
| 137 |
if (intersects == null) {
|
|
| 138 |
continue; |
|
| 139 |
} |
|
| 140 |
|
|
| 141 |
double dist = c.distance(intersects); |
|
| 142 |
|
|
| 143 |
if ((dist < tolerance)) {
|
|
| 144 |
resul = new Point2D.Double(intersects.x, intersects.y); |
|
| 145 |
return resul; |
|
| 146 |
} |
|
| 147 |
} |
|
| 148 |
|
|
| 149 |
from = first; |
|
| 150 |
|
|
| 151 |
break; |
|
| 152 |
} //end switch |
|
| 153 |
|
|
| 154 |
theIterator.next(); |
|
| 155 |
} |
|
| 156 |
return resul; |
|
| 157 |
} |
|
| 158 |
|
|
| 159 |
/** |
|
| 160 |
* DOCUMENT ME! |
|
| 161 |
* |
|
| 162 |
* @param g DOCUMENT ME! |
|
| 163 |
* |
|
| 164 |
* @return DOCUMENT ME! |
|
| 165 |
*/ |
|
| 166 |
private LineSegment[] getLines(Geometry g) {
|
|
| 167 |
ArrayList lines = new ArrayList(); |
|
| 168 |
PathIterator theIterator = g.getPathIterator(null, Converter.FLATNESS); |
|
| 169 |
double[] theData = new double[6]; |
|
| 170 |
Coordinate from = null; |
|
| 171 |
Coordinate first = null; |
|
| 172 |
|
|
| 173 |
while (!theIterator.isDone()) {
|
|
| 174 |
//while not done |
|
| 175 |
int theType = theIterator.currentSegment(theData); |
|
| 176 |
|
|
| 177 |
switch (theType) {
|
|
| 178 |
case PathIterator.SEG_MOVETO: |
|
| 179 |
from = new Coordinate(theData[0], theData[1]); |
|
| 180 |
first = from; |
|
| 181 |
|
|
| 182 |
break; |
|
| 183 |
|
|
| 184 |
case PathIterator.SEG_LINETO: |
|
| 185 |
|
|
| 186 |
Coordinate to = new Coordinate(theData[0], theData[1]); |
|
| 187 |
LineSegment line = new LineSegment(from, to); |
|
| 188 |
lines.add(line); |
|
| 189 |
from = to; |
|
| 190 |
|
|
| 191 |
break; |
|
| 192 |
|
|
| 193 |
case PathIterator.SEG_CLOSE: |
|
| 194 |
line = new LineSegment(from, first); |
|
| 195 |
lines.add(line); |
|
| 196 |
from = first; |
|
| 197 |
|
|
| 198 |
break; |
|
| 199 |
} //end switch |
|
| 200 |
|
|
| 201 |
theIterator.next(); |
|
| 202 |
} |
|
| 203 |
|
|
| 204 |
return (LineSegment[]) lines.toArray(new LineSegment[0]); |
|
| 205 |
} |
|
| 206 |
|
|
| 207 | 79 |
/* (non-Javadoc) |
| 208 | 80 |
* @see com.iver.cit.gvsig.gui.cad.snapping.ISnapper#draw(java.awt.Graphics, java.awt.geom.Point2D) |
| 209 | 81 |
*/ |
| ... | ... | |
| 219 | 91 |
g.drawLine(x1, y1, x2, y2); |
| 220 | 92 |
g.drawLine(x1, y2, x2, y1); |
| 221 | 93 |
} |
| 222 |
/** |
|
| 223 |
* DOCUMENT ME! |
|
| 224 |
* |
|
| 225 |
* @param geoms DOCUMENT ME! |
|
| 226 |
*/ |
|
| 227 |
public void setGeometries(Geometry[] geoms) {
|
|
| 228 |
this.geometries = geoms; |
|
| 229 |
} |
|
| 230 |
|
|
| 231 |
/* (non-Javadoc) |
|
| 94 |
/* (non-Javadoc) |
|
| 232 | 95 |
* @see com.iver.cit.gvsig.gui.cad.snapping.ISnapper#getToolTipText() |
| 233 | 96 |
*/ |
| 234 | 97 |
public String getToolTipText() {
|
Also available in: Unified diff