git.gag.com Git - debian/openrocket/blob - src/net/sf/openrocket/rocketcomponent/RadiusRingComponent.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 RadiusRingComponent extends RingComponent {
  15
  16         protected double outerRadius = 0;
  17         protected double innerRadius = 0;
  18
  19         @Override
  20         public double getOuterRadius() {
  21                 if (outerRadiusAutomatic && getParent() instanceof RadialParent) {
  22                         RocketComponent parent = getParent();
  23                         double pos1 = this.toRelative(Coordinate.NUL, parent)[0].x;
  24                         double pos2 = this.toRelative(new Coordinate(getLength()), parent)[0].x;
  25                         pos1 = MathUtil.clamp(pos1, 0, parent.getLength());
  26                         pos2 = MathUtil.clamp(pos2, 0, parent.getLength());
  27                         outerRadius = Math.min(((RadialParent)parent).getInnerRadius(pos1),
  28                                         ((RadialParent)parent).getInnerRadius(pos2));
  29                 }
  30
  31                 return outerRadius;
  32         }
  33
  34         @Override
  35         public void setOuterRadius(double r) {
  36                 r = Math.max(r,0);
  37                 if (MathUtil.equals(outerRadius, r) && !isOuterRadiusAutomatic())
  38                         return;
  39
  40                 outerRadius = r;
  41                 outerRadiusAutomatic = false;
  42                 if (getInnerRadius() > r) {
  43                         innerRadius = r;
  44                         innerRadiusAutomatic = false;
  45                 }
  46
  47                 fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
  48         }
  49
  50
  51         @Override
  52         public double getInnerRadius() {
  53                 return innerRadius;
  54         }
  55         @Override
  56         public void setInnerRadius(double r) {
  57                 r = Math.max(r,0);
  58                 if (MathUtil.equals(innerRadius, r))
  59                         return;
  60
  61                 innerRadius = r;
  62                 innerRadiusAutomatic = false;
  63                 if (getOuterRadius() < r) {
  64                         outerRadius = r;
  65                         outerRadiusAutomatic = false;
  66                 }
  67
  68                 fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
  69         }
  70
  71
  72         @Override
  73         public double getThickness() {
  74                 return Math.max(getOuterRadius() - getInnerRadius(), 0);
  75         }
  76         @Override
  77         public void setThickness(double thickness) {
  78                 double outer = getOuterRadius();
  79
  80                 thickness = MathUtil.clamp(thickness, 0, outer);
  81                 setInnerRadius(outer - thickness);
  82         }
  83 }