Beispiel #1
0
 /**
  * Creates a transform matrix that will convert from this spatials' local coordinate space to the
  * world coordinate space based on the world transform.
  *
  * @param store Matrix where to store the result, if null, a new one will be created and returned.
  * @return store if not null, otherwise, a new matrix containing the result.
  * @see Spatial#getWorldTransform()
  */
 public Matrix4f getLocalToWorldMatrix(Matrix4f store) {
   if (store == null) {
     store = new Matrix4f();
   } else {
     store.loadIdentity();
   }
   // multiply with scale first, then rotate, finally translate (cf.
   // Eberly)
   store.scale(getWorldScale());
   store.multLocal(getWorldRotation());
   store.setTranslation(getWorldTranslation());
   return store;
 }
  private void setTransformation(Matrix4f transformation) {
    // Compute the modelview matrix by multiplying the camera matrix and
    // the transformation matrix of the object
    Matrix4f modelview = new Matrix4f(sceneManager.getCamera().getCameraMatrix());
    modelview.mul(transformation);

    // Set modelview and projection matrices in shader
    gl.glUniformMatrix4fv(
        gl.glGetUniformLocation(activeShaderID, "modelview"),
        1,
        false,
        transformationToFloat16(modelview),
        0);
    gl.glUniformMatrix4fv(
        gl.glGetUniformLocation(activeShaderID, "projection"),
        1,
        false,
        transformationToFloat16(sceneManager.getFrustum().getProjectionMatrix()),
        0);
  }
 /** Convert a Transformation to a float array in column major ordering, as used by OpenGL. */
 private static float[] transformationToFloat16(Matrix4f m) {
   float[] f = new float[16];
   for (int i = 0; i < 4; i++) for (int j = 0; j < 4; j++) f[j * 4 + i] = m.getElement(i, j);
   return f;
 }
  public static void zoomToFit(Viewport2 viewport) {
    ViewDefinition viewdef = viewport.getViewDefinition();
    // if (MainFrame.getInstance().getMeshToolBar().getMode() != MeshToolBar.VIEW_ZOOM) {
    //	MainFrame.getInstance().getJPatchScreen().removeAllMouseListeners();
    //	MainFrame.getInstance().getJPatchScreen().addMouseListeners(new
    // ChangeViewMouseListener(MouseEvent.BUTTON1,ChangeViewMouseListener.ZOOM));
    //	MainFrame.getInstance().getMeshToolBar().setMode(MeshToolBar.VIEW_ZOOM);
    // } else {
    //	MainFrame.getInstance().getMeshToolBar().reset();
    // }
    Selection selection = MainFrame.getInstance().getSelection();
    float left = Float.MAX_VALUE;
    float right = -Float.MAX_VALUE;
    float bottom = Float.MAX_VALUE;
    float top = -Float.MAX_VALUE;
    Point3f p3 = new Point3f();
    Matrix4f m4View = viewdef.getScreenMatrix();
    // Matrix3f m3RotScale = new Matrix3f();
    // m4View.getRotationScale(m3RotScale);
    boolean doit = true;
    if (selection != null && !selection.isSingle()) {
      for (Iterator it = selection.getObjects().iterator(); it.hasNext(); ) {
        Object object = it.next();
        if (object instanceof ControlPoint) {
          p3.set(((ControlPoint) object).getPosition());
          m4View.transform(p3);
          if (p3.x < left) left = p3.x;
          if (p3.x > right) right = p3.x;
          if (p3.y < bottom) bottom = p3.y;
          if (p3.y > top) top = p3.y;
        }
      }
    } else {
      ArrayList heads = MainFrame.getInstance().getModel().allHeads();
      int p = 0;
      for (Iterator it = heads.iterator(); it.hasNext(); ) {
        ControlPoint cp = (ControlPoint) it.next();
        if (!cp.isHidden()) {
          p3.set(cp.getPosition());
          m4View.transform(p3);
          if (p3.x < left) left = p3.x;
          if (p3.x > right) right = p3.x;
          if (p3.y < bottom) bottom = p3.y;
          if (p3.y > top) top = p3.y;
          p++;
        }
      }
      doit = (p >= 2);
    }
    if (doit) {
      // System.out.println(left + " " + right + " " + top + " " + bottom + " " +
      // viewdef.getScale());
      // System.out.println(viewdef.getTranslateX() + " " + viewdef.getTranslateY());
      float centerX = (left + right) / 2f;
      float centerY = (top + bottom) / 2f;
      float dimX = viewdef.getWidth() / 2f;
      float dimY = viewdef.getHeight() / 2f;
      float sizeX = right - centerX;
      float sizeY = top - centerY;
      if (sizeX > 0 || sizeY > 0) {
        // System.out.println(centerX + ":" + centerY);

        float scaleX = dimX / sizeX;
        float scaleY = dimY / sizeY;
        float scale = Math.min(scaleX, scaleY) * 0.9f;
        // viewdef.setScale(viewdef.getScale() * scale);
        viewdef.setLock(null);
        viewdef.moveView(-centerX / dimX + 1, (dimY - centerY) / dimX, false);
        viewdef.scaleView(scale);
        // viewdef.setTranslation(centerX, centerY);
        // viewdef.computeMatrix();
        // viewport.render();
      }
    }
  }