gvsig-vectorediting / org.gvsig.vectorediting / trunk / org.gvsig.vectorediting / org.gvsig.vectorediting.lib / org.gvsig.vectorediting.lib.prov / org.gvsig.vectorediting.lib.prov.extendline / src / main / java / org / gvsig / vectorediting / lib / prov / extendline / operation / CurveExtendLineOperation.java @ 2603
History | View | Annotate | Download (4.68 KB)
1 |
/**
|
---|---|
2 |
* gvSIG. Desktop Geographic Information System.
|
3 |
*
|
4 |
* Copyright ? 2007-2015 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 2
|
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 |
|
25 |
package org.gvsig.vectorediting.lib.prov.extendline.operation; |
26 |
|
27 |
import org.gvsig.fmap.dal.exception.DataException; |
28 |
import org.gvsig.fmap.dal.feature.FeatureSelection; |
29 |
import org.gvsig.fmap.geom.Geometry; |
30 |
import org.gvsig.fmap.geom.GeometryException; |
31 |
import org.gvsig.fmap.geom.GeometryLocator; |
32 |
import org.gvsig.fmap.geom.GeometryManager; |
33 |
import org.gvsig.fmap.geom.operation.GeometryOperationException; |
34 |
import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException; |
35 |
import org.gvsig.fmap.geom.primitive.Curve; |
36 |
import org.gvsig.fmap.geom.primitive.Point; |
37 |
|
38 |
/**
|
39 |
* @author llmarques
|
40 |
*
|
41 |
*/
|
42 |
public class CurveExtendLineOperation implements ExtendLineOperation { |
43 |
|
44 |
public Curve extendLine(Curve lineToExtend, Point insertedPoint, |
45 |
FeatureSelection boundaryObjects) |
46 |
throws GeometryOperationNotSupportedException,
|
47 |
GeometryOperationException, DataException, GeometryException { |
48 |
|
49 |
GeometryManager geoManager = GeometryLocator.getGeometryManager(); |
50 |
int subtype = lineToExtend.getGeometryType().getSubType();
|
51 |
Curve extendedLine = geoManager.createLine(subtype); |
52 |
|
53 |
Point startVertex = lineToExtend.getVertex(0); |
54 |
Point endVertex =
|
55 |
lineToExtend.getVertex(lineToExtend.getNumVertices() - 1);
|
56 |
|
57 |
Point startIntersectionPoint = null; |
58 |
Point endIntersectionPoint = null; |
59 |
if (insertedPoint.distance(startVertex) < insertedPoint
|
60 |
.distance(endVertex)) { |
61 |
startIntersectionPoint = |
62 |
ExtendLineOperationUtils.curveIntersection(lineToExtend, |
63 |
ExtendLineOperationUtils.START_SIDE, boundaryObjects); |
64 |
|
65 |
} else {
|
66 |
endIntersectionPoint = |
67 |
ExtendLineOperationUtils.curveIntersection(lineToExtend, |
68 |
ExtendLineOperationUtils.END_SIDE, boundaryObjects); |
69 |
} |
70 |
|
71 |
if (startIntersectionPoint != null) { |
72 |
extendedLine.addVertex(startIntersectionPoint); |
73 |
} |
74 |
|
75 |
for (int i = 0; i < lineToExtend.getNumVertices(); i++) { |
76 |
extendedLine.addVertex(lineToExtend.getVertex(i)); |
77 |
} |
78 |
|
79 |
if (endIntersectionPoint != null) { |
80 |
extendedLine.addVertex(endIntersectionPoint); |
81 |
} |
82 |
|
83 |
return extendedLine;
|
84 |
} |
85 |
|
86 |
@Override
|
87 |
public Curve extendLine(Curve lineToExtend, Point insertedPoint, Geometry boundaryObject) throws GeometryOperationNotSupportedException, GeometryOperationException, DataException, GeometryException { |
88 |
GeometryManager geoManager = GeometryLocator.getGeometryManager(); |
89 |
int subtype = lineToExtend.getGeometryType().getSubType();
|
90 |
Curve extendedLine = geoManager.createLine(subtype); |
91 |
|
92 |
Point startVertex = lineToExtend.getVertex(0); |
93 |
Point endVertex =
|
94 |
lineToExtend.getVertex(lineToExtend.getNumVertices() - 1);
|
95 |
|
96 |
Point startIntersectionPoint = null; |
97 |
Point endIntersectionPoint = null; |
98 |
if (insertedPoint.distance(startVertex) < insertedPoint
|
99 |
.distance(endVertex)) { |
100 |
startIntersectionPoint = |
101 |
ExtendLineOperationUtils.curveIntersection(lineToExtend, |
102 |
ExtendLineOperationUtils.START_SIDE, boundaryObject); |
103 |
|
104 |
} else {
|
105 |
endIntersectionPoint = |
106 |
ExtendLineOperationUtils.curveIntersection(lineToExtend, |
107 |
ExtendLineOperationUtils.END_SIDE, boundaryObject); |
108 |
} |
109 |
|
110 |
if (startIntersectionPoint != null) { |
111 |
extendedLine.addVertex(startIntersectionPoint); |
112 |
} |
113 |
|
114 |
for (int i = 0; i < lineToExtend.getNumVertices(); i++) { |
115 |
extendedLine.addVertex(lineToExtend.getVertex(i)); |
116 |
} |
117 |
|
118 |
if (endIntersectionPoint != null) { |
119 |
extendedLine.addVertex(endIntersectionPoint); |
120 |
} |
121 |
|
122 |
return extendedLine;
|
123 |
} |
124 |
|
125 |
|
126 |
} |