示例#1
0
  private void invalidate(Rect rect, final SceneGraph result) {
    if (rect == null) {
      rect = this.top.getBounds();
    }

    this.execute(rect, new InvalidateExecutor(result));
    for (OTFDataReader element : this.additionalElements) {
      element.invalidate(result);
    }
  }
示例#2
0
    @Override
    public void execute(final double x, final double y, final OTFDataReader reader) {
      // I the end, the readers are stored in the leaves of the quad tree, and the "mechanics" will
      // get them out and
      // feed them into this method here.
      // The original filling happens via the quadtree "put" method.  Technically, this is achieved
      // (I think)
      // by ConvertToClientExecutor in a ServerQuad.  I.e. the writers in the ServerQuad are
      // mirrored by the
      // corresponding readers in the ClientQuad.  kai, feb'11

      try {
        if (this.readConst) reader.readConstData(this.in);
        else reader.readDynData(this.in, this.graph);
      } catch (IOException e) {
        throw new RuntimeException(e);
      }
    }
示例#3
0
 public synchronized void getConstData() {
   byte[] bbyte = this.host.getQuadConstStateBuffer();
   ByteBuffer in = ByteBuffer.wrap(bbyte);
   for (OTFDataReader reader : this.values()) {
     try {
       reader.readConstData(in);
     } catch (IOException e) {
       e.printStackTrace();
     }
   }
   for (OTFDataReader reader : this.additionalElements) {
     try {
       reader.readConstData(in);
     } catch (IOException e) {
       e.printStackTrace();
     }
   }
   log.info("  read constant data");
 }
示例#4
0
  /**
   * I think that this requests the scene graph for a given time step and for the rectangle that is
   * visible.
   */
  private SceneGraph createSceneGraph(final int time, Rect rect) {
    List<Rect> rects = new LinkedList<>();
    /*
     * This hack ensures that vehicles on links are drawn even if their center is not visible
     */
    if (OTFClientControl.getInstance().getOTFVisConfig().isScaleQuadTreeRect()) {
      rect = rect.scale(5.0, 5.0);
    }

    SceneGraph cachedResult = this.cachedTimes.get(time);
    // cachedTimes refers to snapshots that were already rendered at some earlier time (only mvi
    // mode).

    if (cachedResult != null) {
      Rect cachedRect = cachedResult.getRect();
      if ((cachedRect == null) || cachedRect.containsOrEquals(rect)) return cachedResult;

      Rect intersec = rect.intersection(cachedRect);
      if (intersec == null) {
        // we need to get the whole rect
        cachedResult = null;
      } else {
        // As we can only store ONE rect with our cached Drawing, we cannot simply
        // add the new portion to the old rect but have to use a rect where both
        // old and new rect fit into aka the union of both
        rect = rect.union(cachedRect);
        // Check the four possible rects, that need filling, possible rect follow this scheme
        //   1133333344
        //   11iiiiii44
        //   11iiiiii44
        //   1122222244
        double r1w = cachedRect.minX - rect.minX;
        double r2h = cachedRect.minY - rect.minY;
        double r3h = rect.maxY - cachedRect.maxY;
        double r4w = rect.maxX - cachedRect.maxX;
        if (r1w > 0) rects.add(new Rect(rect.minX, rect.minY, cachedRect.minX, rect.maxY));
        if (r4w > 0) rects.add(new Rect(cachedRect.maxX, rect.minY, rect.maxX, rect.maxY));
        if (r2h > 0)
          rects.add(new Rect(cachedRect.minX, rect.minY, cachedRect.maxX, cachedRect.minY));
        if (r3h > 0)
          rects.add(new Rect(cachedRect.minX, cachedRect.maxY, cachedRect.maxX, rect.maxY));
      }
    }

    // otherwise this Scenegraph is not useful, so we create a new one
    //
    // I don't understand the above comment.  "isLive" means is interactive.  if it is not
    // interactive, there
    // is no cached result.
    if (this.host.isLive() == false) {
      rect = null;
      cachedResult = null;
    }

    SceneGraph result;
    if (cachedResult == null) {
      result = new SceneGraph(rect);
      // (sets up the layers but does not put content)

      QuadTree.Rect bound2 = this.host.isLive() ? rect : this.top.getBounds();
      byte[] bbyte;
      bbyte = this.host.getQuadDynStateBuffer(bound2);
      // (seems that this contains the whole time step (in binary form))

      ByteBuffer in = ByteBuffer.wrap(bbyte);
      // (converts the byte buffer into an object)

      this.execute(bound2, new ReadDataExecutor(in, false, result));
      // (this is pretty normal, but I still keep forgetting it: The leaves of the QuadTree contain
      // objects of type
      // OTFDataReader.  The ReadDataExecutor (defined above) uses them to read the data.

      for (OTFDataReader element : this.additionalElements) {
        try {
          element.readDynData(in, result);
        } catch (IOException e) {
          e.printStackTrace();
        }
      }
      // fill with elements
      //
      // I don't understand the wording.  Why does "invalidate" do a "fill with elements"?
      invalidate(rect, result);
    } else {
      result = cachedResult;
      result.setRect(rect);
      for (Rect rectPart : rects) {
        QuadTree.Rect bound2 = this.host.isLive() ? rectPart : this.top.getBounds();
        byte[] bbyte;
        bbyte = this.host.getQuadDynStateBuffer(bound2);
        ByteBuffer in = ByteBuffer.wrap(bbyte);
        this.execute(bound2, new ReadDataExecutor(in, false, result));
        // fill with elements
        invalidate(rectPart, result);
      }
    }

    result.finish();

    if (this.host.isLive() == false) {
      this.cachedTimes.put(time, result);
    }
    return result;
  }
示例#5
0
 @Override
 public void execute(final double x, final double y, final OTFDataReader reader) {
   reader.invalidate(this.sceneGraph);
 }