Examples of java.awt.geom.Area.intersect()

java.awt.geom.Area.intersect()
ple: Area a1 = new Area([triangle 0,0 => 8,0 => 0,8]); Area a2 = new Area([triangle 0,0 => 8,0 => 8,8]); a1.intersect(a2); a1(before) intersect a2 = a1(after) ################ ################ ################ ############## ############## ############ ############ ############ ######## ########## ########## #### ######## ######## ###### ###### #### #### ## ## @param rhs the Area to be intersected with thisArea @throws NullPointerException if rhs is null @since 1.2

        if (clip == null || s == null) {
            return false;
        }
        Area as = new Area(s);
        Area imclip = new Area(clip);
        imclip.intersect(as);
        return !imclip.equals(as);
    }


    /**
     * Establishes a clipping region

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                g.setClip(clipPath);
            }
            else
            {
                Area newClip = new Area(cachedClip);
                newClip.intersect(new Area(clipPath));
                g.setClip(newClip);
            }
        }
    }

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                if (shape != null) clipArea = new Area(se.getShape());
                continue;
            }


            Shape shape = se.getShape();
            if (shape != null) clipArea.intersect(new Area(shape));
        }


        return clipArea;
    }

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     * @return true if the clip shape needed to be updated
     */
    public boolean updateClip(Shape cl) {
        if (getGraph().getClip() != null) {
            Area newClip = new Area(getGraph().getClip());
            newClip.intersect(new Area(cl));
            getGraph().setClip(new GeneralPath(newClip));
        } else {
            getGraph().setClip(cl);
        }
        return true; // TODO only update if necessary

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                                                if (sroi.isEmpty()) {
                                                        continue;
                                                }
                                                irp.setSourceRegion(sroi);
                                                Area a = new Area(baseTX.createTransformedShape(sroi));
                                                a.intersect(clip);
                                                if (!a.isEmpty()) {
                                                        BufferedImage b = r.read(0, irp);
                                                        renderableImpl.io.trackImage(renderableImpl.io.trackerPty, b);
                                                        renderableImpl.io.waitFor(renderableImpl.io.trackerPty);
                                                        renderableImpl.io.untrackImage(renderableImpl.io.trackerPty, b);

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                    if (drawFront) {
                        Area side1 = new Area(new Rectangle2D.Double(
                                plotArea.getX(), plotArea.getY(),
                                arc.getStartPoint().getX() - plotArea.getX(),
                                plotArea.getHeight()));
                        side1.intersect(front);
                        g2.setPaint(paint);
                        g2.fill(side1);
                        g2.setPaint(outlinePaint);
                        g2.draw(side1);
                    }

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                            Area side = new Area(new Rectangle2D.Double(
                                    arc.getStartPoint().getX(), plotArea.getY(),
                                    arc.getEndPoint().getX()
                                    - arc.getStartPoint().getX(),
                                    plotArea.getHeight()));
                            side.intersect(back);
                            g2.setPaint(paint);
                            g2.fill(side);
                            g2.setPaint(outlinePaint);
                            g2.draw(side);
                        }

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                            // finishes at back again
                        Area side1 = new Area(new Rectangle2D.Double(
                                arc.getStartPoint().getX(), plotArea.getY(),
                                plotArea.getMaxX() - arc.getStartPoint().getX(),
                                plotArea.getHeight()));
                        side1.intersect(back);


                        Area side2 = new Area(new Rectangle2D.Double(
                                plotArea.getX(), plotArea.getY(),
                                arc.getEndPoint().getX() - plotArea.getX(),
                                plotArea.getHeight()));

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                        Area side2 = new Area(new Rectangle2D.Double(
                                plotArea.getX(), plotArea.getY(),
                                arc.getEndPoint().getX() - plotArea.getX(),
                                plotArea.getHeight()));


                        side2.intersect(back);


                        g2.setPaint(paint);
                        if (drawBack) {
                            g2.fill(side1);
                            g2.fill(side2);

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                    if (drawBack) {
                        Area side1 = new Area(new Rectangle2D.Double(
                                arc.getStartPoint().getX(), plotArea.getY(),
                                plotArea.getMaxX() - arc.getStartPoint().getX(),
                                plotArea.getHeight()));
                        side1.intersect(back);
                        g2.setPaint(paint);
                        g2.fill(side1);
                        g2.setPaint(outlinePaint);
                        g2.draw(side1);
                    }

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