Пример #1
0
 public double calcArea(Point2D A, Point2D B, Point2D C) {
   double area =
       Math.abs(
           A.getX() * (B.getY() - C.getY())
               + B.getX() * (C.getY() - A.getY())
               + C.getX() * (A.getY() - B.getY()));
   return area / 2;
 }
  @Override
  public void mouseDragged(MouseEvent e, CS355Drawing model, Color c) {

    // Get shape at saved index from model and verify it is a circle
    Shape shape = model.getShape(this.index);
    if (!(shape instanceof cs355.model.drawing.Circle)) {
      GUIFunctions.printf(
          "Invalid shape - expected cs355.model.drawing.Circle at index %d", this.index);
      return;
    }

    // Cast the shape to a circle and save the new coordinates
    Circle circle = (Circle) shape;

    // Initialize new center coordinates to initial coordinates
    Point2D.Double center = new Point2D.Double();
    center.setLocation(this.initialCoordinates);

    // Get current pointer coordinates
    Point2D.Double currentCoordinates = new Point2D.Double();
    currentCoordinates.setLocation(e.getPoint());

    // Find difference between pointer and initial coordinates to get correct orientation
    double xDifference = currentCoordinates.getX() - initialCoordinates.getX();
    double yDifference = currentCoordinates.getY() - initialCoordinates.getY();

    // Get radius
    double radius = Math.min(Math.abs(xDifference), Math.abs(yDifference)) / 2.0;

    // Get unit vectors for the differences to preserve sign
    double xDirection = xDifference / Math.abs(xDifference);
    double yDirection = yDifference / Math.abs(yDifference);

    // Calculate position of the center of the circle
    center.x = this.initialCoordinates.getX() + (xDirection * radius);
    center.y = this.initialCoordinates.getY() + (yDirection * radius);

    // Set the new parameters
    circle.setCenter(center);
    circle.setRadius(radius);
  }
Пример #3
0
  public boolean doHandleCheck(Point2D worldCoord, Shape selectedShape) {
    Point2D.Double objCoord = new Point2D.Double();
    AffineTransform worldToObj =
        new AffineTransform(
            Math.cos(selectedShape.getRotation()),
            -Math.sin(selectedShape.getRotation()),
            Math.sin(selectedShape.getRotation()),
            Math.cos(selectedShape.getRotation()),
            0,
            0);
    worldToObj.concatenate(
        new AffineTransform(
            1, 0, 0, 1, -selectedShape.getCenter().getX(), -selectedShape.getCenter().getY()));
    worldToObj.transform(worldCoord, objCoord);

    if (selectedShape instanceof Line) {
      Line s = (Line) selectedShape;

      Point2D.Double len =
          new Point2D.Double(
              s.getEnd().getX() - s.getCenter().getX(), s.getEnd().getY() - s.getCenter().getY());

      if (objCoord.getX() * objCoord.getX() + objCoord.getY() * objCoord.getY()
          < 100 * this.getScale()) {
        return true;
      } else if ((objCoord.getX() - len.getX()) * (objCoord.getX() - len.getX())
              + (objCoord.getY() - len.getY()) * (objCoord.getY() - len.getY())
          < 100 * this.getScale()) {
        return true;
      }
    } else if (selectedShape instanceof Square) {
      Square s = (Square) selectedShape;
      double c = s.getSize() / 2 + (20 * this.getScale());

      if (objCoord.getX() * objCoord.getX() + (objCoord.getY() + c) * (objCoord.getY() + c)
          < (100) * this.getScale()) {
        return true;
      }
    } else if (selectedShape instanceof Rectangle) {
      Rectangle s = (Rectangle) selectedShape;
      double c = s.getHeight() / 2 + (20 * this.getScale());

      if (objCoord.getX() * objCoord.getX() + (objCoord.getY() + c) * (objCoord.getY() + c)
          < (100) * this.getScale()) {
        return true;
      }
    } else if (selectedShape instanceof Ellipse) {
      Ellipse s = (Ellipse) selectedShape;
      double c = s.getHeight() / 2 + (20 * this.getScale());

      if (objCoord.getX() * objCoord.getX() + (objCoord.getY() + c) * (objCoord.getY() + c)
          < (100) * this.getScale()) {
        return true;
      }
    } else if (selectedShape instanceof Triangle) {
      Triangle s = (Triangle) selectedShape;
      double lca =
          Math.sqrt(
              Math.pow((s.getCenter().getX() - s.getA().getX()), 2)
                  + Math.pow((s.getCenter().getY() - s.getA().getY()), 2));
      double lcb =
          Math.sqrt(
              Math.pow((s.getCenter().getX() - s.getB().getX()), 2)
                  + Math.pow((s.getCenter().getY() - s.getB().getY()), 2));
      double lcc =
          Math.sqrt(
              Math.pow((s.getCenter().getX() - s.getC().getX()), 2)
                  + Math.pow((s.getCenter().getY() - s.getC().getY()), 2));

      double c = Math.max(lca, Math.max(lcb, lcc));

      if (objCoord.getX() * objCoord.getX() + (objCoord.getY() + c) * (objCoord.getY() + c)
          < (100) * this.getScale()) {
        return true;
      }
    }
    return false;
  }
Пример #4
0
  public int geometryTest(Point2D worldCoord, int tolerance) {
    shapeList = model.getShapes();
    if (selectedShape != null) {
      if (doHandleCheck(worldCoord, selectedShape)) {
        return selectedIndex;
      }
    }

    Point2D.Double objCoord = new Point2D.Double();
    List<Shape> reversed = model.getShapesReversed();

    for (int i = 0; i < reversed.size(); i++) {
      Shape s = reversed.get(i);
      AffineTransform worldToObj =
          new AffineTransform(
              Math.cos(s.getRotation()),
              -Math.sin(s.getRotation()),
              Math.sin(s.getRotation()),
              Math.cos(s.getRotation()),
              0,
              0);
      worldToObj.concatenate(
          new AffineTransform(1, 0, 0, 1, -s.getCenter().getX(), -s.getCenter().getY()));
      worldToObj.transform(worldCoord, objCoord);
      if (s instanceof Line) {
        Line l = (Line) s;
        Point2D.Double d = new Point2D.Double();
        double x1 = l.getEnd().getX() - l.getCenter().getX();
        double y1 = l.getEnd().getY() - l.getCenter().getY();
        double lineLength = Math.sqrt((x1) * (x1) + (y1) * (y1));
        d.setLocation((x1) / lineLength, (y1) / lineLength);
        double t = (objCoord.getX()) * d.getX() + (objCoord.getY()) * d.getY();
        Point2D.Double q = new Point2D.Double();
        q.setLocation(t * d.getX(), t * d.getY());
        double qdist =
            Math.sqrt(
                (objCoord.getX() - q.getX()) * (objCoord.getX() - q.getX())
                    + (objCoord.getY() - q.getY()) * (objCoord.getY() - q.getY()));
        tolerance = (int) (tolerance * this.getScale());
        if (qdist <= tolerance && t >= -tolerance && t <= lineLength + tolerance) {
          selectedShape = l;
          selectedIndex = shapeList.size() - i - 1;
          setChanged();
          notifyObservers();
          return selectedIndex;
        }
      } else if (s instanceof Square) {
        Square sq = (Square) s;
        if (Math.abs(objCoord.getX()) < sq.getSize() / 2
            && Math.abs(objCoord.getY()) < sq.getSize() / 2) {
          selectedShape = sq;
          selectedIndex = shapeList.size() - i - 1;
          setChanged();
          notifyObservers();
          return selectedIndex;
        }
      } else if (s instanceof Rectangle) {
        Rectangle r = (Rectangle) s;
        if (Math.abs(objCoord.getX()) < r.getWidth() / 2
            && Math.abs(objCoord.getY()) < r.getHeight() / 2) {
          selectedShape = r;
          selectedIndex = shapeList.size() - i - 1;
          setChanged();
          notifyObservers();
          return selectedIndex;
        }
      } else if (s instanceof Circle) {
        Circle c = (Circle) s;
        if (objCoord.getX() * objCoord.getX() + objCoord.getY() * objCoord.getY()
            < (c.getRadius() * c.getRadius())) {
          selectedShape = c;
          selectedIndex = shapeList.size() - i - 1;
          setChanged();
          notifyObservers();
          return selectedIndex;
        }
      } else if (s instanceof Ellipse) {
        Ellipse el = (Ellipse) s;
        double a = el.getWidth() / 2;
        double b = el.getHeight() / 2;
        if ((objCoord.getX() * objCoord.getX()) / (a * a)
                + (objCoord.getY() * objCoord.getY()) / (b * b)
            <= 1) {
          selectedShape = el;
          selectedIndex = shapeList.size() - i - 1;
          setChanged();
          notifyObservers();
          return selectedIndex;
        }
      } else if (s instanceof Triangle) {
        Triangle t = (Triangle) s;
        Point2D.Double a =
            new Point2D.Double(
                t.getA().getX() - t.getCenter().getX(), t.getA().getY() - t.getCenter().getY());
        Point2D.Double b =
            new Point2D.Double(
                t.getB().getX() - t.getCenter().getX(), t.getB().getY() - t.getCenter().getY());
        Point2D.Double c =
            new Point2D.Double(
                t.getC().getX() - t.getCenter().getX(), t.getC().getY() - t.getCenter().getY());

        double triArea = calcArea(a, b, c);
        double a1 = calcArea(objCoord, b, c);
        double a2 = calcArea(objCoord, a, c);
        double a3 = calcArea(objCoord, a, b);

        if (a1 + a2 + a3 <= triArea) {
          selectedShape = t;
          selectedIndex = shapeList.size() - i - 1;
          setChanged();
          notifyObservers();
          return selectedIndex;
        }
      } else {
        selectedShape = null;
        selectedIndex = -1;
        setChanged();
        notifyObservers();
      }
    }
    selectedShape = null;
    selectedIndex = -1;
    setChanged();
    notifyObservers();
    return -1;
  }
Пример #5
0
  @Override
  public void mouseDragged(MouseEvent e) {
    AffineTransform viewToWorld =
        new AffineTransform(1, 0, 0, 1, viewPoint.getX(), viewPoint.getY());
    AffineTransform scale = new AffineTransform(this.getScale(), 0, 0, this.getScale(), 0, 0);
    viewToWorld.concatenate(scale);

    p2 = new Point2D.Double(e.getPoint().getX(), e.getPoint().getY());
    viewToWorld.transform(p2, p2);

    if (button == "line") {
      currentShape = model.getShape(model.getSize() - 1);
      Line l = (Line) currentShape;
      l.setEnd(p2);
      model.deleteShape(model.getSize() - 1);
      model.addShape(l);
    } else if (button == "square") {
      double size = Math.min((Math.abs(p1.getX() - p2.getX())), (Math.abs(p1.getY() - p2.getY())));
      Point2D.Double upLeft = new Point2D.Double();

      if (p1.getX() <= p2.getX() && p1.getY() <= p2.getY()) {
        upLeft.setLocation(p1.getX(), p1.getY());
      } else if (p1.getX() <= p2.getX() && p1.getY() > p2.getY()) {
        upLeft.setLocation(p1.getX(), p1.getY() - size);
      } else if (p1.getX() > p2.getX() && p1.getY() <= p2.getY()) {
        upLeft.setLocation(p1.getX() - size, p1.getY());
      } else {
        upLeft.setLocation(p1.getX() - size, p1.getY() - size);
      }
      Point2D.Double center =
          new Point2D.Double(upLeft.getX() + size / 2, upLeft.getY() + size / 2);
      currentShape = model.getShape(model.getSize() - 1);
      Square s = (Square) currentShape;
      s.setCenter(center);
      s.setSize(size);
      model.deleteShape(model.getSize() - 1);
      model.addShape(s);
    } else if (button == "rectangle") {
      Point2D.Double upLeft = new Point2D.Double();
      upLeft.setLocation(Math.min(p1.getX(), p2.getX()), Math.min(p1.getY(), p2.getY()));
      Double width = Math.abs(p1.getX() - p2.getX());
      Double height = Math.abs(p1.getY() - p2.getY());
      currentShape = model.getShape(model.getSize() - 1);
      Rectangle r = (Rectangle) currentShape;
      Point2D.Double center =
          new Point2D.Double(upLeft.getX() + width / 2, upLeft.getY() + height / 2);
      r.setHeight(height);
      r.setWidth(width);
      r.setCenter(center);
      model.deleteShape(model.getSize() - 1);
      model.addShape(r);
    } else if (button == "circle") {
      double size = Math.min((Math.abs(p1.getX() - p2.getX())), (Math.abs(p1.getY() - p2.getY())));
      double radius = size / 2;
      Point2D.Double upLeft = new Point2D.Double();

      if (p1.getX() <= p2.getX() && p1.getY() <= p2.getY()) {
        upLeft.setLocation(p1.getX(), p1.getY());
      } else if (p1.getX() <= p2.getX() && p1.getY() > p2.getY()) {
        upLeft.setLocation(p1.getX(), p1.getY() - size);
      } else if (p1.getX() > p2.getX() && p1.getY() <= p2.getY()) {
        upLeft.setLocation(p1.getX() - size, p1.getY());
      } else {
        upLeft.setLocation(p1.getX() - size, p1.getY() - size);
      }
      Point2D.Double center = new Point2D.Double(upLeft.getX() + radius, upLeft.getY() + radius);
      currentShape = model.getShape(model.getSize() - 1);
      Circle c = (Circle) currentShape;
      c.setCenter(center);
      c.setRadius(radius);
      model.deleteShape(model.getSize() - 1);
      model.addShape(c);
    } else if (button == "ellipse") {
      Point2D.Double center =
          new Point2D.Double((p1.getX() + p2.getX()) / 2, (p1.getY() + p2.getY()) / 2);
      Double width = Math.abs(p1.getX() - p2.getX());
      Double height = Math.abs(p1.getY() - p2.getY());
      currentShape = model.getShape(model.getSize() - 1);
      Ellipse el = (Ellipse) currentShape;
      el.setCenter(center);
      el.setHeight(height);
      el.setWidth(width);
      model.deleteShape(model.getSize() - 1);
      model.addShape(el);
    } else if (button == "select" && selectedIndex > -1) {

      if (handleSelected) {
        AffineTransform worldToObj =
            new AffineTransform(
                1, 0, 0, 1, -selectedShape.getCenter().getX(), -selectedShape.getCenter().getY());
        Point2D.Double objCoord = new Point2D.Double();
        worldToObj.transform(p2, objCoord);

        if (selectedShape instanceof Line) {
          Line l = (Line) selectedShape;

          if (lineHandleSelected == 1) {
            Point2D.Double newCenter = new Point2D.Double(p2.getX(), p2.getY());
            l.setCenter(newCenter);
          } else if (lineHandleSelected == 2) {
            Point2D.Double newEnd = new Point2D.Double(p2.getX(), p2.getY());
            l.setEnd(newEnd);
          }
          selectedShape = l;
          model.setShape(selectedIndex, selectedShape);
        } else {

          double theta =
              Math.acos(
                  -objCoord.getY()
                      / Math.sqrt(Math.pow(objCoord.getX(), 2) + Math.pow(-objCoord.getY(), 2)));
          if (objCoord.getX() < 0) {
            theta = -theta;
          }
          selectedShape.setRotation(theta);
          model.setShape(selectedIndex, selectedShape);
        }
      } else {
        Point2D.Double newCenter =
            new Point2D.Double((p2.getX() - diff.getX()), (p2.getY() - diff.getY()));

        if (selectedShape instanceof Line) {
          Line l = (Line) selectedShape;
          Point2D.Double len =
              new Point2D.Double(
                  l.getEnd().getX() - l.getCenter().getX(),
                  l.getEnd().getY() - l.getCenter().getY());
          Point2D.Double newEnd =
              new Point2D.Double((newCenter.getX() + len.getX()), (newCenter.getY() + len.getY()));
          l.setEnd(newEnd);
          selectedShape = l;
        } else if (selectedShape instanceof Triangle) {
          Triangle t = (Triangle) selectedShape;
          Point2D.Double change =
              new Point2D.Double(
                  newCenter.getX() - selectedShape.getCenter().getX(),
                  newCenter.getY() - selectedShape.getCenter().getY());
          t.setA(
              new Point2D.Double(t.getA().getX() + change.getX(), t.getA().getY() + change.getY()));
          t.setB(
              new Point2D.Double(t.getB().getX() + change.getX(), t.getB().getY() + change.getY()));
          t.setC(
              new Point2D.Double(t.getC().getX() + change.getX(), t.getC().getY() + change.getY()));
          selectedShape = t;
        }
        selectedShape.setCenter(newCenter);
        model.setShape(selectedIndex, selectedShape);
      }
    }
  }