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 / ArcExtendLineOperation.java @ 2616
History | View | Annotate | Download (5.29 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 |
package org.gvsig.vectorediting.lib.prov.extendline.operation; |
25 |
|
26 |
import org.gvsig.fmap.dal.exception.DataException; |
27 |
import org.gvsig.fmap.dal.feature.FeatureSelection; |
28 |
import org.gvsig.fmap.geom.Geometry; |
29 |
import org.gvsig.fmap.geom.Geometry.TYPES; |
30 |
import org.gvsig.fmap.geom.GeometryLocator; |
31 |
import org.gvsig.fmap.geom.GeometryManager; |
32 |
import org.gvsig.fmap.geom.GeometryUtils; |
33 |
import org.gvsig.fmap.geom.exception.CreateGeometryException; |
34 |
import org.gvsig.fmap.geom.operation.GeometryOperationException; |
35 |
import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException; |
36 |
import org.gvsig.fmap.geom.primitive.Arc; |
37 |
import org.gvsig.fmap.geom.primitive.Curve; |
38 |
import org.gvsig.fmap.geom.primitive.Point; |
39 |
|
40 |
/**
|
41 |
* @author llmarques
|
42 |
*
|
43 |
*/
|
44 |
public class ArcExtendLineOperation implements ExtendLineOperation { |
45 |
|
46 |
@Override
|
47 |
public Curve extendLine(Curve lineToExtend, Point insertedPoint, |
48 |
FeatureSelection boundaryObjects) |
49 |
throws GeometryOperationNotSupportedException,
|
50 |
GeometryOperationException, DataException, CreateGeometryException { |
51 |
|
52 |
Arc arcToBeExtend = (Arc) lineToExtend; |
53 |
|
54 |
GeometryManager geoManager = GeometryLocator.getGeometryManager(); |
55 |
int subtype = lineToExtend.getGeometryType().getSubType();
|
56 |
Arc extendedArc = (Arc) geoManager.create(TYPES.ARC, subtype); |
57 |
|
58 |
Point startVertex = arcToBeExtend.getInitPoint();
|
59 |
Point endVertex = arcToBeExtend.getEndPoint();
|
60 |
|
61 |
Point startIntersectionPoint = null; |
62 |
Point endIntersectionPoint = null; |
63 |
|
64 |
if (insertedPoint.distance(startVertex) < insertedPoint
|
65 |
.distance(endVertex)) { |
66 |
startIntersectionPoint |
67 |
= ExtendLineOperationUtils.arcIntersection(arcToBeExtend, |
68 |
ExtendLineOperationUtils.START_SIDE, boundaryObjects); |
69 |
|
70 |
} else {
|
71 |
endIntersectionPoint |
72 |
= ExtendLineOperationUtils.arcIntersection(arcToBeExtend, |
73 |
ExtendLineOperationUtils.END_SIDE, boundaryObjects); |
74 |
} |
75 |
|
76 |
if (startIntersectionPoint == null) { |
77 |
startIntersectionPoint = arcToBeExtend.getInitPoint(); |
78 |
} |
79 |
|
80 |
if (endIntersectionPoint == null) { |
81 |
endIntersectionPoint = arcToBeExtend.getEndPoint(); |
82 |
} |
83 |
|
84 |
Point center = arcToBeExtend.getCenterPoint();
|
85 |
double radius = center.distance(arcToBeExtend.getInitPoint());
|
86 |
double startAngle
|
87 |
= GeometryUtils.calculateAngle(center, startIntersectionPoint); |
88 |
double endAngle
|
89 |
= GeometryUtils.calculateAngle(center, endIntersectionPoint); |
90 |
|
91 |
extendedArc.setPointsStartEnd(center, radius, startAngle, endAngle); |
92 |
return extendedArc;
|
93 |
} |
94 |
|
95 |
@Override
|
96 |
public Curve extendLine(Curve lineToExtend, Point insertedPoint, |
97 |
Geometry boundaryObject) |
98 |
throws GeometryOperationNotSupportedException,
|
99 |
GeometryOperationException, DataException, CreateGeometryException { |
100 |
|
101 |
Arc arcToBeExtend = (Arc) lineToExtend; |
102 |
|
103 |
GeometryManager geoManager = GeometryLocator.getGeometryManager(); |
104 |
int subtype = lineToExtend.getGeometryType().getSubType();
|
105 |
Arc extendedArc = (Arc) geoManager.create(TYPES.ARC, subtype); |
106 |
|
107 |
Point startVertex = arcToBeExtend.getInitPoint();
|
108 |
Point endVertex = arcToBeExtend.getEndPoint();
|
109 |
Point midVertex = arcToBeExtend.getMiddlePoint();
|
110 |
|
111 |
Point startIntersectionPoint = null; |
112 |
Point endIntersectionPoint = null; |
113 |
|
114 |
if (insertedPoint.distance(startVertex) < insertedPoint
|
115 |
.distance(endVertex)) { |
116 |
startIntersectionPoint |
117 |
= ExtendLineOperationUtils.arcIntersection(arcToBeExtend, |
118 |
ExtendLineOperationUtils.START_SIDE, boundaryObject); |
119 |
|
120 |
} else {
|
121 |
endIntersectionPoint |
122 |
= ExtendLineOperationUtils.arcIntersection(arcToBeExtend, |
123 |
ExtendLineOperationUtils.END_SIDE, boundaryObject); |
124 |
} |
125 |
|
126 |
if (startIntersectionPoint == null) { |
127 |
startIntersectionPoint = arcToBeExtend.getInitPoint(); |
128 |
} |
129 |
|
130 |
if (endIntersectionPoint == null) { |
131 |
endIntersectionPoint = arcToBeExtend.getEndPoint(); |
132 |
} |
133 |
|
134 |
extendedArc.setPoints(startIntersectionPoint, midVertex, endIntersectionPoint); |
135 |
return extendedArc;
|
136 |
} |
137 |
|
138 |
} |