Example #1
0
 /**
  * Draws this without refreshing steps.
  *
  * @param panel the drawing panel requesting the drawing
  * @param _g the graphics context on which to draw
  */
 public void drawMe(DrawingPanel panel, Graphics _g) {
   // position and show inspector if requested during loading
   if (inspectorX != Integer.MIN_VALUE
       && trackerPanel != null
       && trackerPanel.getTFrame() != null) {
     positionInspector();
     Runnable runner =
         new Runnable() {
           public void run() {
             showInspector = false;
             inspector.setVisible(true);
           }
         };
     if (showInspector) SwingUtilities.invokeLater(runner);
   }
   if (isVisible() && isTraceVisible()) {
     // draw trace only if fixed coords & (non-worldview or no ref frame)
     TrackerPanel tPanel = (TrackerPanel) panel;
     ImageCoordSystem coords = tPanel.getCoords(); // get active coords
     boolean isRefFrame = coords instanceof ReferenceFrame;
     if (isRefFrame) {
       coords = ((ReferenceFrame) coords).getCoords();
     }
     boolean fixed = coords.isFixedAngle() && coords.isFixedOrigin() && coords.isFixedScale();
     if (fixed && (!(tPanel instanceof WorldTView) || !isRefFrame)) {
       trace.reset();
       for (int i = 0; i < traceX.length; i++) {
         if (Double.isNaN(traceX[i])) continue;
         tracePt.setLocation(traceX[i], traceY[i]);
         java.awt.Point p = tracePt.getScreenPosition(tPanel);
         if (trace.getCurrentPoint() == null) trace.moveTo((float) p.getX(), (float) p.getY());
         else trace.lineTo((float) p.getX(), (float) p.getY());
       }
       Graphics2D g2 = (Graphics2D) _g;
       Color color = g2.getColor();
       Stroke stroke = g2.getStroke();
       g2.setColor(getFootprint().getColor());
       g2.setStroke(traceStroke);
       g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
       g2.draw(trace);
       // restore original color and stroke
       g2.setColor(color);
       g2.setStroke(stroke);
     }
   }
   super.draw(panel, _g);
 }
Example #2
0
 /** Refreshes step positions. */
 protected void refreshSteps() {
   locked = true;
   if (refreshStepsLater) return;
   // return if this is an empty dynamic system
   if (this instanceof DynamicSystem) {
     DynamicSystem system = (DynamicSystem) this;
     if (system.particles.length == 0) return;
   }
   if (trackerPanel != null) {
     refreshDerivsLater = trackerPanel.getPlayer().getClipControl().isPlaying();
     int n = trackerPanel.getFrameNumber();
     VideoClip clip = trackerPanel.getPlayer().getVideoClip();
     // determine last frame to be marked (must satisfy both model and clip)
     int end = Math.min(getEndFrame(), n);
     while (end > getStartFrame() && !clip.includesFrame(end)) {
       end--;
     }
     if (end <= lastValidFrame) return;
     if (lastValidFrame == -1) {
       reset(); // initializes model, sets lastValidFrame to marked frame, if any
       if (lastValidFrame == -1 || end <= lastValidFrame) return;
     }
     int start = lastValidFrame;
     Tracker.logTime(
         this.getClass().getSimpleName()
             + this.hashCode()
             + " refreshing steps "
             + start
             + " to "
             + end); //$NON-NLS-1$ //$NON-NLS-2$
     boolean singleStep = (end - start == 1);
     // step forward to end
     ImageCoordSystem coords = trackerPanel.getCoords();
     // get underlying coords if appropriate
     boolean useDefault = isUseDefaultReferenceFrame();
     while (useDefault && coords instanceof ReferenceFrame) {
       coords = ((ReferenceFrame) coords).getCoords();
     }
     double startTime = t0 + dt * tracePtsPerStep * (start - getStartFrame()) / clip.getStepSize();
     double stepSize = 1.0 * clip.getStepSize() / tracePtsPerStep;
     int stepCount = (tracePtsPerStep * (end - start)) / clip.getStepSize();
     ParticleModel[] models = getModels();
     // prepare larger trace arrays and copy existing points into them
     for (ParticleModel next : models) {
       next.locked = false;
       int traceLength = next.traceX.length + stepCount;
       next.prevX = next.traceX;
       next.prevY = next.traceY;
       next.traceX = new double[traceLength];
       next.traceY = new double[traceLength];
       System.arraycopy(next.prevX, 0, next.traceX, 0, next.prevX.length);
       System.arraycopy(next.prevY, 0, next.traceY, 0, next.prevY.length);
     }
     for (int i = 0; i < stepCount; i++) {
       int stepNumber = i + 1;
       int frameNumber = start + (int) (stepNumber * stepSize);
       time = startTime + stepNumber * dt;
       Point2D[] points = getNextTracePositions();
       if (points == null) continue;
       AffineTransform transform = coords.getToImageTransform(frameNumber);
       for (int j = 0; j < models.length; j++) {
         transform.transform(points[j], points[j]);
         // determine if point is invalid due to out of bounds
         boolean valid =
             Math.abs(points[j].getX()) < xLimit && Math.abs(points[j].getY()) < yLimit;
         if (!valid && !invalidWarningShown) {
           invalidWarningShown = true;
           Runnable runner = new Runnable() { // avoids deadlock?
                 public void run() {
                   //            		if (invalidWarningShown) return;
                   JOptionPane.showMessageDialog(
                       trackerPanel,
                       TrackerRes.getString("ParticleModel.Dialog.Offscreen.Message1")
                           + XML.NEW_LINE //$NON-NLS-1$
                           + TrackerRes.getString(
                               "ParticleModel.Dialog.Offscreen.Message2"), //$NON-NLS-1$
                       TrackerRes.getString("ParticleModel.Dialog.Offscreen.Title"), // $NON-NLS-1$
                       JOptionPane.WARNING_MESSAGE);
                 }
               };
           SwingUtilities.invokeLater(runner);
         }
         models[j].traceX[models[j].prevX.length + i] = valid ? points[j].getX() : Double.NaN;
         models[j].traceY[models[j].prevY.length + i] = valid ? points[j].getY() : Double.NaN;
         if (stepNumber % tracePtsPerStep == 0) { // refresh position step
           saveState(frameNumber);
           PositionStep step = (PositionStep) models[j].getStep(frameNumber);
           if (step == null) {
             step = createPositionStep(models[j], frameNumber, 0, 0);
             step.setFootprint(models[j].getFootprint());
             models[j].steps.setStep(frameNumber, step);
           }
           step.getPosition().setPosition(valid ? points[j] : nan); // this method is fast
         }
       }
     }
     int count = 4 + (end - start);
     int startUpdate = start;
     // step back twice to pick up possible valid derivatives
     if (startUpdate > clip.getStepSize()) startUpdate -= clip.getStepSize();
     if (startUpdate > clip.getStepSize()) startUpdate -= clip.getStepSize();
     lastValidFrame = end;
     for (ParticleModel next : models) {
       next.steps.setLength(end + 1);
       coords = trackerPanel.getCoords(); // get active coords
       // special treatment if this is the origin of current reference frame
       if (coords instanceof ReferenceFrame
           && ((ReferenceFrame) coords).getOriginTrack() == next) {
         // set origins of reference frame
         boolean prev = next.refreshing; // save refreshing value
         next.refreshing = true;
         ((ReferenceFrame) coords).setOrigins();
         // then set positions to zero wrt origins
         for (int i = 0; i < clip.getStepCount(); i++) {
           int frameNumber = clip.stepToFrame(i);
           PositionStep step = (PositionStep) next.getStep(frameNumber);
           if (step == null) continue;
           AffineTransform transform = coords.getToImageTransform(frameNumber);
           next.point.setLocation(0, 0);
           transform.transform(next.point, next.point);
           step.getPosition().setPosition(next.point); // this method is fast
         }
         next.refreshing = prev; // restore refreshing value
         if (!refreshDerivsLater) {
           next.updateDerivatives(startUpdate, count);
         }
       } else if (!refreshDerivsLater) {
         next.updateDerivatives(startUpdate, count);
       }
       if (next.vAtOrigin) next.vTailsToOriginItem.doClick();
       if (next.aAtOrigin) next.aTailsToOriginItem.doClick();
       if (!refreshDerivsLater) {
         if (singleStep)
           next.support.firePropertyChange("step", null, new Integer(n)); // $NON-NLS-1$
         else next.support.firePropertyChange("steps", null, null); // $NON-NLS-1$
       }
       // erase refreshed steps
       for (int i = start + 1; i <= end; i++) {
         Step step = next.getStep(i);
         if (step != null) step.erase();
       }
       next.locked = true;
     }
     trackerPanel.repaint();
   }
 }