Examples of org.jbox2d.common.Transform

org.jbox2d.common.Transform
A transform contains translation and rotation. It is used to represent the position and orientation of rigid frames.

    return this;
  }
  
  @Override
  protected void applyOffset(float x, float y, float angle) {
    final Transform xf = new Transform();
    xf.position.set(new Vec2(x, y));
    xf.R.set(angle);
    // Transform vertices and normals.
    for (int i = 0; i < shape.getVertexCount(); ++i) {
      Vec2 vertex = shape.getVertex(i);

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    boolean sensorB = m_fixtureB.isSensor();
    boolean sensor = sensorA || sensorB;


    Body bodyA = m_fixtureA.getBody();
    Body bodyB = m_fixtureB.getBody();
    Transform xfA = bodyA.getTransform();
    Transform xfB = bodyB.getTransform();
    // log.debug("TransformA: "+xfA);
    // log.debug("TransformB: "+xfB);


    if (sensor) {
      Shape shapeA = m_fixtureA.getShape();

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      shape.set(new Vec2(-20.0f, -20.0f), new Vec2(20.0f, -20.0f));
      ground.createFixture(sd);
    }


    {
      Transform xf1 = new Transform();
      xf1.q.set(0.3524f * MathUtils.PI);
      Rot.mulToOutUnsafe(xf1.q, new Vec2(1.0f, 0.0f), xf1.p);


      Vec2 vertices[] = new Vec2[3];
      vertices[0] = Transform.mul(xf1, new Vec2(-1.0f, 0.0f));
      vertices[1] = Transform.mul(xf1, new Vec2(1.0f, 0.0f));
      vertices[2] = Transform.mul(xf1, new Vec2(0.0f, 0.5f));


      PolygonShape poly1 = new PolygonShape();
      poly1.set(vertices, 3);


      FixtureDef sd1 = new FixtureDef();
      sd1.shape = poly1;
      sd1.density = 4.0f;


      Transform xf2 = new Transform();
      xf2.q.set(-0.3524f * MathUtils.PI);
      Rot.mulToOut(xf2.q, new Vec2(-1.0f, 0.0f), xf2.p);


      vertices[0] = Transform.mul(xf2, new Vec2(-1.0f, 0.0f));
      vertices[1] = Transform.mul(xf2, new Vec2(1.0f, 0.0f));

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  // djm pooling
  private final Transform pxf = new Transform();


  protected final void synchronizeFixtures() {
    final Transform xf1 = pxf;
    // xf1.position = m_sweep.c0 - Mul(xf1.R, m_sweep.localCenter);


    // xf1.q.set(m_sweep.a0);
    // Rot.mulToOutUnsafe(xf1.q, m_sweep.localCenter, xf1.p);
    // xf1.p.mulLocal(-1).addLocal(m_sweep.c0);

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      return;
    }


    final PolygonShape poly1; // reference polygon
    final PolygonShape poly2; // incident polygon
    Transform xf1, xf2;
    int edge1; // reference edge
    boolean flip;
    final float k_relativeTol = 0.98f;
    final float k_absoluteTol = 0.001f;

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    GJK_CALLS++;


    final DistanceProxy proxyA = input.proxyA;
    final DistanceProxy proxyB = input.proxyB;


    Transform transformA = input.transformA;
    Transform transformB = input.transformB;


    // Initialize the simplex.
    simplex.readCache(cache, proxyA, transformA, proxyB, transformB);


    // Get simplex vertices as an array.

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  }


  private void drawJoint(Joint joint) {
    Body bodyA = joint.getBodyA();
    Body bodyB = joint.getBodyB();
    Transform xf1 = bodyA.getTransform();
    Transform xf2 = bodyB.getTransform();
    Vec2 x1 = xf1.p;
    Vec2 x2 = xf2.p;
    Vec2 p1 = pool.popVec2();
    Vec2 p2 = pool.popVec2();
    joint.getAnchorA(p1);

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    m_normals[1].set(1.0f, 0.0f);
    m_normals[2].set(0.0f, 1.0f);
    m_normals[3].set(-1.0f, 0.0f);
    m_centroid.set(center);


    final Transform xf = poolt1;
    xf.p.set(center);
    xf.q.set(angle);


    // Transform vertices and normals.
    for (int i = 0; i < m_count; ++i) {

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      return;
    }


    final PolygonShape poly1;  // reference polygon
    final PolygonShape poly2;  // incident polygon
    Transform xf1, xf2;
    int edge1;                 // reference edge
    boolean flip;
    final float k_tol = 0.1f * Settings.linearSlop;


    if (results2.separation > results1.separation + k_tol) {

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    GJK_CALLS++;


    final DistanceProxy proxyA = input.proxyA;
    final DistanceProxy proxyB = input.proxyB;


    Transform transformA = input.transformA;
    Transform transformB = input.transformB;


    // Initialize the simplex.
    simplex.readCache(cache, proxyA, transformA, proxyB, transformB);


    // Get simplex vertices as an array.

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Related Classes of org.jbox2d.common.Transform

org.jbox2d.collision.Collision

org.jbox2d.collision.Distance

org.jbox2d.collision.shapes.PolygonShape

org.jbox2d.dynamics.Body

org.jbox2d.dynamics.contacts.Contact

org.jbox2d.dynamics.joints.GearJoint

org.jbox2d.dynamics.joints.LineJoint

org.jbox2d.dynamics.joints.PrismaticJoint

org.jbox2d.dynamics.World

org.jbox2d.particle.ParticleSystem

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