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

   1 package net.sf.openrocket.rocketcomponent;
   2
   3 import net.sf.openrocket.preset.ComponentPreset;
   4 import net.sf.openrocket.util.Coordinate;
   5 import net.sf.openrocket.util.MathUtil;
   6
   7 /**
   8  * An inner component that consists of a hollow cylindrical component.  This can be
   9  * an inner tube, tube coupler, centering ring, bulkhead etc.
  10  *
  11  * The properties include the inner and outer radii, length and radial position.
  12  *
  13  * @author Sampo Niskanen <sampo.niskanen@iki.fi>
  14  */
  15 public abstract class RadiusRingComponent extends RingComponent implements Coaxial {
  16
  17         protected double outerRadius = 0;
  18         protected double innerRadius = 0;
  19
  20         @Override
  21         protected void loadFromPreset(ComponentPreset preset) {
  22                 super.loadFromPreset(preset);
  23                 if ( preset.has(ComponentPreset.OUTER_DIAMETER)) {
  24                         this.outerRadius = preset.get(ComponentPreset.OUTER_DIAMETER) / 2.0;
  25                         this.outerRadiusAutomatic = false;
  26                 }
  27                 this.innerRadiusAutomatic = false;
  28                 if ( preset.has(ComponentPreset.INNER_DIAMETER)) {
  29                         this.innerRadius = preset.get(ComponentPreset.INNER_DIAMETER) / 2.0;
  30                 }
  31
  32                 fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
  33
  34         }
  35
  36         @Override
  37         public double getOuterRadius() {
  38                 if (outerRadiusAutomatic && getParent() instanceof RadialParent) {
  39                         RocketComponent parent = getParent();
  40                         double pos1 = this.toRelative(Coordinate.NUL, parent)[0].x;
  41                         double pos2 = this.toRelative(new Coordinate(getLength()), parent)[0].x;
  42                         pos1 = MathUtil.clamp(pos1, 0, parent.getLength());
  43                         pos2 = MathUtil.clamp(pos2, 0, parent.getLength());
  44                         outerRadius = Math.min(((RadialParent)parent).getInnerRadius(pos1),
  45                                         ((RadialParent)parent).getInnerRadius(pos2));
  46                 }
  47
  48                 return outerRadius;
  49         }
  50
  51         @Override
  52         public void setOuterRadius(double r) {
  53                 r = Math.max(r,0);
  54                 if (MathUtil.equals(outerRadius, r) && !isOuterRadiusAutomatic())
  55                         return;
  56
  57                 outerRadius = r;
  58                 outerRadiusAutomatic = false;
  59                 if (getInnerRadius() > r) {
  60                         innerRadius = r;
  61                         innerRadiusAutomatic = false;
  62                 }
  63
  64                 fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
  65         }
  66
  67
  68         @Override
  69         public double getInnerRadius() {
  70                 return innerRadius;
  71         }
  72         @Override
  73         public void setInnerRadius(double r) {
  74                 r = Math.max(r,0);
  75                 if (MathUtil.equals(innerRadius, r))
  76                         return;
  77
  78                 innerRadius = r;
  79                 innerRadiusAutomatic = false;
  80                 if (getOuterRadius() < r) {
  81                         outerRadius = r;
  82                         outerRadiusAutomatic = false;
  83                 }
  84
  85                 fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
  86         }
  87
  88
  89         @Override
  90         public double getThickness() {
  91                 return Math.max(getOuterRadius() - getInnerRadius(), 0);
  92         }
  93         @Override
  94         public void setThickness(double thickness) {
  95                 double outer = getOuterRadius();
  96
  97                 thickness = MathUtil.clamp(thickness, 0, outer);
  98                 setInnerRadius(outer - thickness);
  99         }
 100
 101 }