100 lines
2.8 KiB
Java
100 lines
2.8 KiB
Java
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//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.hoese.algebras.periodic;
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import viewer.hoese.*;
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import sj.lang.ListExpr;
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import java.awt.geom.*;
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import tools.Reporter;
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public class PMPLinear extends LinearMove{
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public PMPLinear(){
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x1=x2=y1=y2=0.0;
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interval = new RelInterval();
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defined = false;
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}
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public String getName(){
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return "pmpoint";
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}
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/** returns a Point2D.Double */
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public Object getObjectAt(Time T){
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if(!defined){
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Reporter.debug("PMPLinear.getObjectAt called on an undefined instance");
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return null;
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}
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if(!interval.contains(T)){
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return null;
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}
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double p = interval.where(T);
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Object res = new Point2D.Double(x1+p*(x2-x1),y1+p*(y2-y1));
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return res;
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}
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protected boolean readMap(ListExpr map){
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if(map.listLength()!=2)
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return false;
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ListExpr start = map.first();
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ListExpr end = map.second();
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if(start.listLength()!=2 || end.listLength()!=2){
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Reporter.debug("PMPLinear.readStartEnd wrong ListLength");
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return false;
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}
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Double X1 = LEUtils.readNumeric(start.first());
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Double Y1 = LEUtils.readNumeric(start.second());
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Double X2 = LEUtils.readNumeric(end.first());
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Double Y2 = LEUtils.readNumeric(end.second());
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if(X1==null || X2==null || Y1==null || Y2 == null){
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Reporter.debug("PMPLinear.readStartEnd : found a non-numeric");
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return false;
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}
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x1 = X1.doubleValue();
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y1 = Y1.doubleValue();
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x2 = X2.doubleValue();
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y2 = Y2.doubleValue();
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isstatic = (x1==x2) & (y1==y2);
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bounds = new BBox(x1,x2,y1,y2);
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defined = true;
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return true;
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}
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public BBox getBoundingBox(){
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if(!defined){
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Reporter.debug("PMPLinear.getBoundingBox called with an undefined instance");
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return null;
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}
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if(bounds==null){
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Reporter.debug("PMPLinear.getBoundingBox called without a bounding box");
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}
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return bounds;
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}
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private double x1;
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private double x2;
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private double y1;
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private double y2;
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private BBox bounds;
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}
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