Examples of ca.eandb.jmist.math.Ray3.pointAt()

ca.eandb.jmist.math.Ray3.pointAt()
Gets the point that is t units along the ray. @param t The number of units along the ray to find the point of. @return The point that is t units along the ray.


      q = new Point3(halfTableDiag * cost3, halfTableDiag * sint3, 0.0);
      r = new Point3(starPointRadius * cost2, starPointRadius * sint2, 0.0);


      Ray3 ray = new Ray3(r, Vector3.K);
      r = ray.pointAt(planeKite.intersect(ray));


      Plane3 planeStar = Plane3.throughPoints(q, p, r);
      b.slice(planeStar, true);


      p = new Point3(radius * cost2, radius * sint2, -crownHeight);

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      b.slice(planeMain, true);


      q = new Point3(radius * cost0, radius * sint0, lowerMainTop);
      r = new Point3(lowerGirdleInner * cost0, lowerGirdleInner * sint0, 0.0);
      ray = new Ray3(r, Vector3.NEGATIVE_K);
      r = ray.pointAt(planeMain.intersect(ray));


      planeGirdle = Plane3.throughPoints(p, q, r);
      b.slice(planeGirdle, true);


      q = new Point3(radius * cost2, radius * sint2, lowerMainTop);

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      b.slice(planeGirdle, true);


      q = new Point3(radius * cost2, radius * sint2, lowerMainTop);
      r = new Point3(lowerGirdleInner * cost2, lowerGirdleInner * sint2, 0.0);
      ray = new Ray3(r, Vector3.NEGATIVE_K);
      r = ray.pointAt(planeMain.intersect(ray));
      planeGirdle = Plane3.throughPoints(q, p, r);
      b.slice(planeGirdle, true);


    }

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      if (I.isEmpty()) {
        return null;
      }


      Vector3    n    = LENS_SPHERE.center().vectorTo(init.pointAt(I.minimum()));
      Vector3    r    = Optics.reflect(init.direction(), n);


      Ray3    ray    = new Ray3(Point3.ORIGIN, r);
      Color    color  = getWhite();
      double    pdf    = 1.0 / 16.0;

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            ia = index;
            indices.add(index);
          } else {
            assert(!splitMap.containsKey(edge));
            Ray3 ray = new Ray3(v1.position, v3.position);
            Point3 p = ray.pointAt(plane.intersect(ray));
            int index = addVertex(p);
            ia = index;
            vertices.get(index).tempInt = -1;
            vertices.get(index).flag = true;
            indices.add(index);

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            ia = -1;
            indices.add(index);
          } else {
            assert(!splitMap.containsKey(edge));
            Ray3 ray = new Ray3(v1.position, v2.position);
            Point3 p = ray.pointAt(plane.intersect(ray));
            int index = addVertex(p);
            assert(ia >= 0);
            if (ia < 0) {
              ia = -1;
            }

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