gvsig-geoprocess / org.gvsig.geoprocess / trunk / org.gvsig.geoprocess / org.gvsig.geoprocess.algorithm / org.gvsig.geoprocess.algorithm.clip / src / main / java / org / gvsig / geoprocess / algorithm / clip / ClipAlgorithm.java @ 335
History | View | Annotate | Download (6.54 KB)
| 1 |
/**
|
|---|---|
| 2 |
* gvSIG. Desktop Geographic Information System.
|
| 3 |
*
|
| 4 |
* Copyright (C) 2007-2012 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.geoprocess.algorithm.clip; |
| 25 |
|
| 26 |
import org.gvsig.fmap.dal.exception.DataException; |
| 27 |
import org.gvsig.fmap.dal.feature.FeatureSet; |
| 28 |
import org.gvsig.fmap.dal.feature.FeatureStore; |
| 29 |
import org.gvsig.fmap.dal.feature.FeatureType; |
| 30 |
import org.gvsig.geoprocess.algorithm.base.core.ScalableUnionOperation; |
| 31 |
import org.gvsig.geoprocess.lib.sextante.AbstractSextanteGeoProcess; |
| 32 |
import org.gvsig.geoprocess.lib.sextante.dataObjects.FlyrVectIVectorLayer; |
| 33 |
|
| 34 |
import es.unex.sextante.core.Sextante; |
| 35 |
import es.unex.sextante.dataObjects.IVectorLayer; |
| 36 |
import es.unex.sextante.exceptions.GeoAlgorithmExecutionException; |
| 37 |
import es.unex.sextante.exceptions.RepeatedParameterNameException; |
| 38 |
import es.unex.sextante.outputs.OutputVectorLayer; |
| 39 |
|
| 40 |
/**
|
| 41 |
* Clip algorithm
|
| 42 |
* @author <a href="mailto:nachobrodin@gmail.com">Nacho Brodin</a>
|
| 43 |
*/
|
| 44 |
public class ClipAlgorithm extends AbstractSextanteGeoProcess { |
| 45 |
|
| 46 |
public static final String RESULT_POL = "RESULT_POL"; |
| 47 |
public static final String RESULT_LIN = "RESULT_LIN"; |
| 48 |
public static final String RESULT_POINT = "RESULT_POINT"; |
| 49 |
public static final String LAYER = "LAYER"; |
| 50 |
public static final String CLIP = "CLIP"; |
| 51 |
public static final String CHECK = "CHECK"; |
| 52 |
|
| 53 |
/*
|
| 54 |
* (non-Javadoc)
|
| 55 |
* @see es.unex.sextante.core.GeoAlgorithm#defineCharacteristics()
|
| 56 |
*/
|
| 57 |
public void defineCharacteristics(){ |
| 58 |
setName(getTranslation("Clip"));
|
| 59 |
setGroup(getTranslation("basic_vect_algorithms"));
|
| 60 |
// setGeneratesUserDefinedRasterOutput(false);
|
| 61 |
|
| 62 |
try {
|
| 63 |
m_Parameters.addInputVectorLayer(LAYER, |
| 64 |
getTranslation("Input_layer"),
|
| 65 |
IVectorLayer.SHAPE_TYPE_WRONG, |
| 66 |
true);
|
| 67 |
m_Parameters.addInputVectorLayer(CLIP, |
| 68 |
getTranslation("Clip_layer"),
|
| 69 |
IVectorLayer.SHAPE_TYPE_POLYGON, |
| 70 |
true);
|
| 71 |
m_Parameters.addBoolean(CHECK, |
| 72 |
getTranslation("Selected_geometries_input_layer"), false); |
| 73 |
} catch (RepeatedParameterNameException e) {
|
| 74 |
Sextante.addErrorToLog(e); |
| 75 |
} |
| 76 |
//addOutputVectorLayer(RESULT, getTranslation("Clip"),
|
| 77 |
// OutputVectorLayer.SHAPE_TYPE_UNDEFINED);
|
| 78 |
|
| 79 |
addOutputVectorLayer(RESULT_POL, getTranslation("Clip_polygon"),
|
| 80 |
OutputVectorLayer.SHAPE_TYPE_POLYGON); |
| 81 |
addOutputVectorLayer(RESULT_LIN, getTranslation("Clip_line"),
|
| 82 |
OutputVectorLayer.SHAPE_TYPE_LINE); |
| 83 |
addOutputVectorLayer(RESULT_POINT, getTranslation("Clip_point"),
|
| 84 |
OutputVectorLayer.SHAPE_TYPE_POINT); |
| 85 |
} |
| 86 |
|
| 87 |
/*
|
| 88 |
* (non-Javadoc)
|
| 89 |
* @see es.unex.sextante.core.GeoAlgorithm#processAlgorithm()
|
| 90 |
*/
|
| 91 |
public boolean processAlgorithm() throws GeoAlgorithmExecutionException { |
| 92 |
if(existsOutPutFile(ClipAlgorithm.RESULT_POL, 0) || |
| 93 |
existsOutPutFile(ClipAlgorithm.RESULT_LIN, 0) ||
|
| 94 |
existsOutPutFile(ClipAlgorithm.RESULT_POINT, 0)) {
|
| 95 |
throw new GeoAlgorithmExecutionException(getTranslation("file_exists")); |
| 96 |
} |
| 97 |
org.gvsig.fmap.geom.Geometry clippingGeometry = null;
|
| 98 |
IVectorLayer clip = m_Parameters.getParameterValueAsVectorLayer(CLIP); |
| 99 |
IVectorLayer layer = m_Parameters.getParameterValueAsVectorLayer(LAYER); |
| 100 |
boolean selectedGeom = m_Parameters.getParameter(CHECK).getParameterValueAsBoolean();
|
| 101 |
|
| 102 |
try {
|
| 103 |
clippingGeometry = ScalableUnionOperation.joinLayerGeometries(clip, false);
|
| 104 |
} catch (Exception e) { |
| 105 |
Sextante.addErrorToLog(e); |
| 106 |
return false; |
| 107 |
} |
| 108 |
|
| 109 |
FeatureStore storeLayer = null;
|
| 110 |
if(layer instanceof FlyrVectIVectorLayer && clippingGeometry != null) |
| 111 |
storeLayer = ((FlyrVectIVectorLayer)layer).getFeatureStore(); |
| 112 |
else
|
| 113 |
return false; |
| 114 |
|
| 115 |
try {
|
| 116 |
FeatureSet features = null;
|
| 117 |
features = storeLayer.getFeatureSet(); |
| 118 |
FeatureType featureType = features.getDefaultFeatureType(); |
| 119 |
|
| 120 |
if(isPolygon(storeLayer) || isUndefined(storeLayer)) {
|
| 121 |
FeatureStore outFeatStore = |
| 122 |
buildOutPutStore(featureType, IVectorLayer.SHAPE_TYPE_POLYGON, |
| 123 |
getTranslation("Clip_polygon"), RESULT_POL);
|
| 124 |
|
| 125 |
ClipOperation operation = new ClipOperation(clippingGeometry, this); |
| 126 |
operation.setTaskStatus(getStatus()); |
| 127 |
operation.computesGeometryOperation(storeLayer, outFeatStore, attrNames, |
| 128 |
selectedGeom, false, true); |
| 129 |
} else {
|
| 130 |
buildOutPutStore(featureType, IVectorLayer.SHAPE_TYPE_POLYGON, |
| 131 |
getTranslation("Null_polygon"), RESULT_POL);
|
| 132 |
} |
| 133 |
|
| 134 |
if(isLine(storeLayer) || isUndefined(storeLayer)) {
|
| 135 |
FeatureStore outFeatStore = |
| 136 |
buildOutPutStore(featureType, IVectorLayer.SHAPE_TYPE_LINE, |
| 137 |
getTranslation("Clip_line"), RESULT_LIN);
|
| 138 |
|
| 139 |
ClipOperation operation = new ClipOperation(clippingGeometry, this); |
| 140 |
operation.setTaskStatus(getStatus()); |
| 141 |
operation.computesGeometryOperation(storeLayer, outFeatStore, attrNames, |
| 142 |
selectedGeom, false, true); |
| 143 |
} else {
|
| 144 |
buildOutPutStore(featureType, IVectorLayer.SHAPE_TYPE_LINE, |
| 145 |
getTranslation("Null_line"), RESULT_LIN);
|
| 146 |
} |
| 147 |
|
| 148 |
if(isPoint(storeLayer) || isUndefined(storeLayer)) {
|
| 149 |
FeatureStore outFeatStore = |
| 150 |
buildOutPutStore(featureType, IVectorLayer.SHAPE_TYPE_POINT, |
| 151 |
getTranslation("Clip_point"), RESULT_POINT);
|
| 152 |
|
| 153 |
ClipOperation operation = new ClipOperation(clippingGeometry, this); |
| 154 |
operation.setTaskStatus(getStatus()); |
| 155 |
operation.computesGeometryOperation(storeLayer, outFeatStore, attrNames, |
| 156 |
selectedGeom, false, true); |
| 157 |
} else {
|
| 158 |
buildOutPutStore(featureType, IVectorLayer.SHAPE_TYPE_POINT, |
| 159 |
getTranslation("Null_point"), RESULT_POINT);
|
| 160 |
} |
| 161 |
} catch (DataException e) {
|
| 162 |
Sextante.addErrorToLog(e); |
| 163 |
return false; |
| 164 |
} |
| 165 |
|
| 166 |
return true; |
| 167 |
} |
| 168 |
|
| 169 |
} |