svn-gvsig-desktop / tags / v2_0_0_Build_2059 / libraries / libFMap_controls / src / org / gvsig / fmap / mapcontrol / tools / grid / Grid.java @ 39308
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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package org.gvsig.fmap.mapcontrol.tools.grid; |
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import java.awt.Color; |
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import java.awt.geom.Point2D; |
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import org.gvsig.fmap.geom.primitive.Envelope; |
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import org.gvsig.fmap.mapcontext.ViewPort; |
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import org.gvsig.fmap.mapcontrol.MapControlDrawer; |
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/**
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* Clase encargada de gestionar las diferentes operaciones que se realizan
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* sobre el grid.
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*
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* @author Vicente Caballero Navarro
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*/
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public class Grid { |
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public static boolean DefaultShowGrid = false; |
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public static double DefaultGridSizeX = 1000; |
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public static double DefaultGridSizeY = 1000; |
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public static boolean DefaultAdjustGrid=false; |
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public static boolean SHOWGRID = false; |
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public static double GRIDSIZEX = 1000; |
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public static double GRIDSIZEY = 1000; |
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public static boolean ADJUSTGRID=false; |
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private boolean grid = SHOWGRID; |
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private double gridSizeX = GRIDSIZEX; |
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private double gridSizeY = GRIDSIZEY; |
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private ViewPort viewport=null; |
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private boolean adjustGrid=ADJUSTGRID; |
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/**
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* Inserta el viewPort.
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*
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* @param vp
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*/
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public void setViewPort(ViewPort vp) { |
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viewport = vp; |
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// if (gridSize == 0) {
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// gridSize = viewport.toMapDistance(25);
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// }
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} |
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/**
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* Ajusta un punto de la imagen que se pasa como par?metro al handler m?s
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* cercano si se encuentra lo suficientemente cerca y devuelve la
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* distancia del punto original al punto ajustado
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*
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* @param point
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*
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* @return Distancia del punto que se pasa como par?metro al punto ajustado
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*/
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public double adjustToGrid(Point2D point) { |
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if (adjustGrid) {
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Point2D auxp = new Point2D.Double(0, 0); |
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double x = ((point.getX() + gridSizeX) % gridSizeX) -
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((auxp.getX()) % gridSizeX); |
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double y = ((point.getY() + gridSizeY) % gridSizeY) -
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((auxp.getY()) % gridSizeY); |
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Point2D p = (Point2D) point.clone(); |
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if (x>gridSizeX/2){ |
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x=x-gridSizeX; |
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} |
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if (y>gridSizeY/2){ |
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y=y-gridSizeY; |
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} |
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point.setLocation((point.getX() - x), (point.getY() - y)); |
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return p.distance(point);
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} |
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return Double.MAX_VALUE; |
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} |
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/**
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* Dibuja el grid sobre el graphics que se pasa como par?metro
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*
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* @param g Graphics sobre el que dibujar el grid.
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*/
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public void drawGrid(MapControlDrawer mapControlDrawer) { |
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if (!grid) {
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return;
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} |
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if (viewport.fromMapDistance(gridSizeX) > 3 |
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&& viewport.fromMapDistance(gridSizeY) > 3) {
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mapControlDrawer.setColor(Color.lightGray);
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Envelope extent = viewport.getAdjustedExtent(); |
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Point2D auxp = new Point2D.Double(0, 0); |
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if (extent==null) |
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return;
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for (double i = extent.getMinimum(0); i < (extent.getMaximum(0) + gridSizeX); i += gridSizeX) { |
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for (double j = extent.getMinimum(1); j < (extent.getMaximum(1) + gridSizeY); j += gridSizeY) { |
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Point2D po = new Point2D.Double(i, j); |
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Point2D point = viewport.fromMapPoint(po);
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double x = ((po.getX() + gridSizeX) % gridSizeX)
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- ((auxp.getX()) % gridSizeX); |
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double y = ((po.getY() + gridSizeY) % gridSizeY)
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- ((auxp.getY()) % gridSizeY); |
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x = (point.getX() - viewport.fromMapDistance(x)); |
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y = (point.getY() + viewport.fromMapDistance(y)); |
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mapControlDrawer.drawRect((int) x, (int) y, 1, 1); |
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} |
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} |
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} |
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} |
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/**
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* Inserta un boolean que indica si se utiliza o no el grid y de esta forma
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* dibujarse.
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*
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* @param b boolean
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*/
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public void setShowGrid(boolean b) { |
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grid = b; |
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} |
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/**
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* Devuelve true si se usa el grid.
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*
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* @return True si se usa el grid.
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*/
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public boolean isShowGrid() { |
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return grid;
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} |
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/**
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* Inserta un boolean que indica si se ajusta o no al grid y de esta forma
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* dibujarse.
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*
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* @param b boolean
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*/
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public void setAdjustGrid(boolean b) { |
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adjustGrid = b; |
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} |
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/**
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* Devuelve true si se ha de ajustar al grid.
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*
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* @return True si se est? ajustando al grid.
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*/
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public boolean isAdjustGrid() { |
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return adjustGrid;
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} |
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public double getGridSizeX() { |
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return gridSizeX;
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} |
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public double getGridSizeY() { |
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return gridSizeY;
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} |
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public void setGridSizeX(double gridSize) { |
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this.gridSizeX = gridSize;
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} |
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public void setGridSizeY(double gridSize) { |
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this.gridSizeY = gridSize;
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} |
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} |