git.gag.com Git - debian/openrocket/blob - src/net/sf/openrocket/rocketcomponent/ThicknessRingComponent.java

   1 package net.sf.openrocket.rocketcomponent;
   2
   3 import net.sf.openrocket.util.Coordinate;
   4 import net.sf.openrocket.util.MathUtil;
   5
   6 /**
   7  * An inner component that consists of a hollow cylindrical component.  This can be
   8  * an inner tube, tube coupler, centering ring, bulkhead etc.
   9  *
  10  * The properties include the inner and outer radii, length and radial position.
  11  *
  12  * @author Sampo Niskanen <sampo.niskanen@iki.fi>
  13  */
  14 public abstract class ThicknessRingComponent extends RingComponent {
  15
  16         protected double outerRadius = 0;
  17         protected double thickness = 0;
  18
  19
  20         @Override
  21         public double getOuterRadius() {
  22                 if (isOuterRadiusAutomatic() && getParent() instanceof RadialParent) {
  23                         RocketComponent parent = getParent();
  24                         double pos1 = this.toRelative(Coordinate.NUL, parent)[0].x;
  25                         double pos2 = this.toRelative(new Coordinate(getLength()), parent)[0].x;
  26                         pos1 = MathUtil.clamp(pos1, 0, parent.getLength());
  27                         pos2 = MathUtil.clamp(pos2, 0, parent.getLength());
  28                         outerRadius = Math.min(((RadialParent)parent).getInnerRadius(pos1),
  29                                         ((RadialParent)parent).getInnerRadius(pos2));
  30                 }
  31
  32                 return outerRadius;
  33         }
  34
  35
  36         @Override
  37         public void setOuterRadius(double r) {
  38                 r = Math.max(r,0);
  39                 if (MathUtil.equals(outerRadius, r) && !isOuterRadiusAutomatic())
  40                         return;
  41
  42                 outerRadius = r;
  43                 outerRadiusAutomatic = false;
  44
  45                 if (thickness > outerRadius)
  46                         thickness = outerRadius;
  47
  48                 fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
  49         }
  50
  51
  52
  53         @Override
  54         public double getThickness() {
  55                 return Math.min(thickness, getOuterRadius());
  56         }
  57         @Override
  58         public void setThickness(double thickness) {
  59                 double outer = getOuterRadius();
  60
  61                 thickness = MathUtil.clamp(thickness, 0, outer);
  62                 if (MathUtil.equals(getThickness(), thickness))
  63                         return;
  64
  65                 this.thickness = thickness;
  66
  67                 fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
  68         }
  69
  70
  71         @Override
  72         public double getInnerRadius() {
  73                 return Math.max(getOuterRadius()-thickness, 0);
  74         }
  75         @Override
  76         public void setInnerRadius(double r) {
  77                 r = Math.max(r,0);
  78                 setThickness(getOuterRadius() - r);
  79         }
  80
  81
  82 }