git.gag.com Git - debian/openrocket/blob - core/src/net/sf/openrocket/rocketcomponent/ThicknessRingComponent.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 ThicknessRingComponent extends RingComponent {
  16
  17         protected double outerRadius = 0;
  18         protected double thickness = 0;
  19
  20         @Override
  21         protected void loadFromPreset(ComponentPreset preset) {
  22                 if ( preset.has(ComponentPreset.OUTER_DIAMETER) )  {
  23                         this.outerRadiusAutomatic = false;
  24                         this.innerRadiusAutomatic = false;
  25                         double outerDiameter = preset.get(ComponentPreset.OUTER_DIAMETER);
  26                         this.outerRadius = outerDiameter/2.0;
  27                         if ( preset.has(ComponentPreset.INNER_DIAMETER) ) {
  28                                 double innerDiameter = preset.get(ComponentPreset.INNER_DIAMETER);
  29                                 this.thickness = (outerDiameter-innerDiameter) / 2.0;
  30                         }
  31                 }
  32                 super.loadFromPreset(preset);
  33
  34                 fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
  35
  36         }
  37
  38         @Override
  39         public double getOuterRadius() {
  40                 if (isOuterRadiusAutomatic() && getParent() instanceof RadialParent) {
  41                         RocketComponent parent = getParent();
  42                         double pos1 = this.toRelative(Coordinate.NUL, parent)[0].x;
  43                         double pos2 = this.toRelative(new Coordinate(getLength()), parent)[0].x;
  44                         pos1 = MathUtil.clamp(pos1, 0, parent.getLength());
  45                         pos2 = MathUtil.clamp(pos2, 0, parent.getLength());
  46                         outerRadius = Math.min(((RadialParent)parent).getInnerRadius(pos1),
  47                                         ((RadialParent)parent).getInnerRadius(pos2));
  48                 }
  49
  50                 return outerRadius;
  51         }
  52
  53
  54         @Override
  55         public void setOuterRadius(double r) {
  56                 r = Math.max(r,0);
  57                 if (MathUtil.equals(outerRadius, r) && !isOuterRadiusAutomatic())
  58                         return;
  59
  60                 outerRadius = r;
  61                 outerRadiusAutomatic = false;
  62
  63                 if (thickness > outerRadius)
  64                         thickness = outerRadius;
  65
  66                 fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
  67         }
  68
  69
  70
  71         @Override
  72         public double getThickness() {
  73                 return Math.min(thickness, getOuterRadius());
  74         }
  75         @Override
  76         public void setThickness(double thickness) {
  77                 double outer = getOuterRadius();
  78
  79                 thickness = MathUtil.clamp(thickness, 0, outer);
  80                 if (MathUtil.equals(getThickness(), thickness))
  81                         return;
  82
  83                 this.thickness = thickness;
  84
  85                 fireComponentChangeEvent(ComponentChangeEvent.MASS_CHANGE);
  86         }
  87
  88
  89         @Override
  90         public double getInnerRadius() {
  91                 return Math.max(getOuterRadius()-thickness, 0);
  92         }
  93         @Override
  94         public void setInnerRadius(double r) {
  95                 r = Math.max(r,0);
  96                 setThickness(getOuterRadius() - r);
  97         }
  98
  99
 100 }