135 lines
3.1 KiB
Java
135 lines
3.1 KiB
Java
//This file is part of SECONDO.
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//Copyright (C) 2004, University in Hagen, Department of Computer Science,
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//Database Systems for New Applications.
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//SECONDO is free software; you can redistribute it and/or modify
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//it under the terms of the GNU General Public License as published by
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//the Free Software Foundation; either version 2 of the License, or
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//(at your option) any later version.
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//SECONDO 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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//You should have received a copy of the GNU General Public License
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//along with SECONDO; 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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package viewer.fuzzy2d;
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import viewer.viewer3d.graphic3d.BoundingBox3D;
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public class BoundingBox2D{
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/** creates a new 2dim Bounding Box with given values*/
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public BoundingBox2D(double minx,double miny,double maxx,double maxy){
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super();
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setTo(minx,miny,maxx,maxy);
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}
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/** creates a new BoundingBox2D */
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public BoundingBox2D(){
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this(0,0,0,0);
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}
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/** returns a readable represemntation of the BoundingBox */
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public String toString(){
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return "[ ("+minx+","+miny+")->("+maxx+","+maxy+")]";
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}
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/** set the Values to a projection from BB3*/
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public void readFrom(BoundingBox3D BB){
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minx = BB.getMinX();
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miny = BB.getMinY();
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maxx = BB.getMaxX();
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maxy = BB.getMaxY();
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}
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/** extends this BoundingBox with BB2*/
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public void union(BoundingBox2D BB2){
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minx=min(minx,BB2.minx);
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miny=min(miny,BB2.miny);
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maxx=max(maxx,BB2.maxx);
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maxy=max(maxy,BB2.maxy);
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}
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/** set the Values of this BoundingBox */
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public void setTo(double minx,double miny,double maxx,double maxy){
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this.minx=min(minx,maxx);
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this.miny=min(miny,maxy);
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this.maxx=max(minx,maxx);
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this.maxy=max(miny,maxy);
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}
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/** extends this Bounding Box so that (x,y) in inside from this Bounding Box */
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public void include(double x , double y){
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minx = min(x,minx);
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maxx = max(x,maxx);
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miny = min(y,miny);
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maxy = max(y,maxy);
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}
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/** set the values frtom this to the values from BB2 */
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public void equalize(BoundingBox2D BB2){
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minx = BB2.minx;
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maxx = BB2.maxx;
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miny = BB2.miny;
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maxy = BB2.maxy;
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}
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/** returns the width of this Bounding box */
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public double getWidth(){ return maxx-minx;}
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/** returns thze heigt of this Bounding Box */
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public double getHeight(){return maxy-miny;}
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public double getMinX(){return minx;}
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public double getMinY(){return miny;}
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public double getMaxX(){return maxx;}
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public double getMaxY(){return maxy;}
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/** returns true if this and BB2 have common points */
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public boolean intersect(BoundingBox2D BB2){
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if(minx>BB2.maxx) return false; //right from BB2
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if(maxx<BB2.minx) return false; // left from BB2
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if(miny>BB2.maxy) return false; // above BB2
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if(maxy<BB2.miny) return false; // under BB2
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return true;
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}
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private double min(double x, double y){
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return (x<y)? x : y;
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}
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private double max(double x, double y){
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return (x>y)? x : y;
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}
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private double minx,miny;
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private double maxx,maxy;
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}
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