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; }
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; }