Example #1
0
  @Override
  public void process(
      TDSFile file,
      AppearanceFactory appFactory,
      GeometryFactory geomFactory,
      NodeFactory nodeFactory,
      AnimationFactory animFactory,
      SpecialItemsHandler siHandler,
      ModelContext context,
      int length)
      throws IOException {
    /*int flags = */ file.readUnsignedShort();
    // int animType = flags & 0x03; // should be one of 0, 2, 3.
    // boolean lockX = ( ( flags & 8 ) != 0 );
    // boolean lockY = ( ( flags & 16 ) != 0 );
    // boolean lockZ = ( ( flags & 32 ) != 0 );
    // boolean unlinkX = ( ( flags & 64 ) != 0 );
    // boolean unlinkY = ( ( flags & 128 ) != 0 );
    // boolean unlinkZ = ( ( flags & 256 ) != 0 );
    // System.out.println( "flags: " + Integer.toBinaryString( flags ) );
    file.skipBytes(8); // four unknown ushorts.
    int numKeys = file.readUnsignedInt();

    context.translation = new PosTransform();

    JAGTLog.debug("Translation key frames: ", numKeys);

    for (int i = 0; i < numKeys; i++) {
      int frameNumber = file.readUnsignedInt();
      int accelerationData = file.readUnsignedShort();

      getSplineTerms(accelerationData, file);

      float x = file.readFloat();
      float y = file.readFloat();
      float z = file.readFloat();

      Vector3f translation;
      if ((numKeys == 1) && (x == 0f) && (y == 0f) && (z == 0f)) translation = null;
      else translation = new Vector3f(x, y, z);
      // translation = new Vector3f( x, z, -y );

      if (context.pivot == null) {
        context.pivot = new Point3f(0f, 0f, 0f);
      }

      JAGTLog.debug("\tTranslation key frame: ", frameNumber + " : ", translation);

      context.translation.addKeyFrame(
          frameNumber, (float) frameNumber / (float) context.framesCount, translation);
    }

    checkAndApplyTransform(
        context, false, nodeFactory, animFactory, siHandler, file.convertZup2Yup());
  }
Example #2
0
  /**
   * This only reads the spline data and should be part of the track header when it gets invented.
   *
   * <p>The possible spline values are are
   *
   * <ol>
   *   <li>Tension
   *   <li>Continuity
   *   <li>Bias
   *   <li>EaseTo
   *   <li>EaseFrom
   * </ol>
   *
   * @param accelerationData an integer representing the bits that determine which of the five
   *     possible spline terms are present in the data and should be read.
   * @param file
   */
  private void getSplineTerms(final int accelerationData, TDSFile file) throws IOException {
    if (accelerationData == 0) return;

    int bits = accelerationData;

    for (int i = 0; i < 5; i++) {
      bits = bits >>> i;
      if ((bits & 1) == 1) {
        file.readFloat();
      }
    }
  }