root / trunk / extensions / extGeoProcessing / src / com / iver / cit / gvsig / geoprocess / buffer / fmap / ConstantDistanceBufferVisitor.java @ 5626
History | View | Annotate | Download (3.59 KB)
| 1 |
/*
|
|---|---|
| 2 |
* Created on 02-feb-2006
|
| 3 |
*
|
| 4 |
* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
|
| 5 |
*
|
| 6 |
* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
|
| 7 |
*
|
| 8 |
* This program is free software; you can redistribute it and/or
|
| 9 |
* modify it under the terms of the GNU General Public License
|
| 10 |
* as published by the Free Software Foundation; either version 2
|
| 11 |
* of the License, or (at your option) any later version.
|
| 12 |
*
|
| 13 |
* This program is distributed in the hope that it will be useful,
|
| 14 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 15 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 16 |
* GNU General Public License for more details.
|
| 17 |
*
|
| 18 |
* You should have received a copy of the GNU General Public License
|
| 19 |
* along with this program; if not, write to the Free Software
|
| 20 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
|
| 21 |
*
|
| 22 |
* For more information, contact:
|
| 23 |
*
|
| 24 |
* Generalitat Valenciana
|
| 25 |
* Conselleria d'Infraestructures i Transport
|
| 26 |
* Av. Blasco Ib??ez, 50
|
| 27 |
* 46010 VALENCIA
|
| 28 |
* SPAIN
|
| 29 |
*
|
| 30 |
* +34 963862235
|
| 31 |
* gvsig@gva.es
|
| 32 |
* www.gvsig.gva.es
|
| 33 |
*
|
| 34 |
* or
|
| 35 |
*
|
| 36 |
* IVER T.I. S.A
|
| 37 |
* Salamanca 50
|
| 38 |
* 46005 Valencia
|
| 39 |
* Spain
|
| 40 |
*
|
| 41 |
* +34 963163400
|
| 42 |
* dac@iver.es
|
| 43 |
*/
|
| 44 |
/* CVS MESSAGES:
|
| 45 |
*
|
| 46 |
* $Id: ConstantDistanceBufferVisitor.java 5626 2006-06-02 18:20:33Z azabala $
|
| 47 |
* $Log$
|
| 48 |
* Revision 1.2 2006-06-02 18:20:33 azabala
|
| 49 |
* limpieza de imports
|
| 50 |
*
|
| 51 |
* Revision 1.1 2006/05/24 21:14:41 azabala
|
| 52 |
* primera version en cvs despues de refactoring orientado a crear un framework extensible de geoprocessing
|
| 53 |
*
|
| 54 |
* Revision 1.8 2006/05/01 19:18:09 azabala
|
| 55 |
* revisi?n general del buffer (a?adidos anillos concentricos, buffers interiores y exteriores, etc)
|
| 56 |
*
|
| 57 |
* Revision 1.7 2006/03/28 16:27:16 azabala
|
| 58 |
* *** empty log message ***
|
| 59 |
*
|
| 60 |
* Revision 1.6 2006/03/07 21:01:33 azabala
|
| 61 |
* *** empty log message ***
|
| 62 |
*
|
| 63 |
* Revision 1.5 2006/03/06 19:48:39 azabala
|
| 64 |
* *** empty log message ***
|
| 65 |
*
|
| 66 |
* Revision 1.3 2006/03/05 19:57:05 azabala
|
| 67 |
* *** empty log message ***
|
| 68 |
*
|
| 69 |
* Revision 1.2 2006/02/20 19:44:21 azabala
|
| 70 |
* *** empty log message ***
|
| 71 |
*
|
| 72 |
* Revision 1.1 2006/02/17 16:31:38 azabala
|
| 73 |
* *** empty log message ***
|
| 74 |
*
|
| 75 |
* Revision 1.3 2006/02/12 21:02:58 azabala
|
| 76 |
* *** empty log message ***
|
| 77 |
*
|
| 78 |
* Revision 1.2 2006/02/09 16:01:06 azabala
|
| 79 |
* First version in CVS
|
| 80 |
*
|
| 81 |
* Revision 1.1 2006/02/02 19:46:51 azabala
|
| 82 |
* First version in CVS
|
| 83 |
*
|
| 84 |
*
|
| 85 |
*/
|
| 86 |
package com.iver.cit.gvsig.geoprocess.buffer.fmap; |
| 87 |
|
| 88 |
import com.iver.cit.gvsig.fmap.core.IGeometry; |
| 89 |
import com.iver.cit.gvsig.fmap.layers.FLayer; |
| 90 |
import com.iver.cit.gvsig.fmap.layers.layerOperations.SingleLayer; |
| 91 |
import com.iver.cit.gvsig.fmap.layers.layerOperations.VectorialData; |
| 92 |
import com.iver.cit.gvsig.geoprocess.core.fmap.GeoprocessException; |
| 93 |
|
| 94 |
/**
|
| 95 |
* This FeatureVisitor computes buffers and saves
|
| 96 |
* it to a new FLayer.
|
| 97 |
* All IFeature of this Layer will have the same buffer
|
| 98 |
* distance.
|
| 99 |
*
|
| 100 |
* @author azabala
|
| 101 |
*
|
| 102 |
*/
|
| 103 |
public class ConstantDistanceBufferVisitor extends BufferVisitor { |
| 104 |
/**
|
| 105 |
* buffer distance to use
|
| 106 |
*/
|
| 107 |
private double distance; |
| 108 |
/**
|
| 109 |
* Constructor
|
| 110 |
* @param distance buffer distance to use
|
| 111 |
* @throws GeoprocessException
|
| 112 |
*/
|
| 113 |
public ConstantDistanceBufferVisitor(double distance) throws GeoprocessException{ |
| 114 |
this.distance = distance;
|
| 115 |
} |
| 116 |
|
| 117 |
public void stop(FLayer layer) { |
| 118 |
//we must flush JTS processors
|
| 119 |
resultsProcessor.finish(); |
| 120 |
} |
| 121 |
/**
|
| 122 |
* This FeatureVisitor only work with Vectorial
|
| 123 |
* Layers
|
| 124 |
*/
|
| 125 |
public boolean start(FLayer layer) { |
| 126 |
return (layer instanceof SingleLayer) && (layer instanceof VectorialData); |
| 127 |
} |
| 128 |
|
| 129 |
public double getBufferDistance(IGeometry g, int index) { |
| 130 |
return distance;
|
| 131 |
} |
| 132 |
|
| 133 |
public String getProcessDescription() { |
| 134 |
return "Computing buffers with constant distances"; |
| 135 |
} |
| 136 |
|
| 137 |
} |
| 138 |
|