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(getDeviceclip() != null)
        {
            Area area = new Area(getClip());
            if(shape != null)
                area.intersect(new Area(shape));
            shape = area;
        }
        setClip(shape);
    }

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        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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            s = transform.createTransformedShape(s);
        }


        if (clip != null) {
            Area newClip = new Area(clip);
            newClip.intersect(new Area(s));
            clip = new GeneralPath(newClip);
        } else {
            clip = s;
        }
    }

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     * @param cl the new clip in the current state
     */
    public void setClip(Shape cl) {
        if (getData().clip != null) {
            Area newClip = new Area(getData().clip);
            newClip.intersect(new Area(cl));
            getData().clip = new GeneralPath(newClip);
        } else {
            getData().clip = cl;
        }
    }

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    s = getTransform().createTransformedShape(s);
    final Area area = new Area(s);
    final Shape clip = getClip();
    if (clip != null)
    {
      area.intersect(new Area(clip));
    }
    return area.intersects(rect.x, rect.y, rect.width, rect.height);
  }


  /**

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    }
    s = transform.createTransformedShape(s);
    final Area area = new Area(s);
    if (clip != null)
    {
      area.intersect(clip);
    }
    return area.intersects(rect.x, rect.y, rect.width, rect.height);
  }


  /**

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    {
        if(getDeviceclip() != null)
        {
            Area area = new Area(getClip());
            if(shape != null)
                area.intersect(new Area(shape));
            shape = area;
        }
        setClip(shape);
    }

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   */
  public void test(TestHarness harness)      
  {
    Area area = new Area();
    area.add(new Area(new Rectangle2D.Double(-1.0, -1.0, 2.0, 2.0)));
    area.intersect(new Area(new Rectangle2D.Double(0.0, 0.0, 2.0, 2.0)));
    harness.check(!area.contains(-1.0, -1.0));  // check 1
    harness.check(!area.contains(-1.0, 0.0));   // check 2
    harness.check(!area.contains(-1.0, 1.0));   // check 3
    harness.check(!area.contains(-1.0, 2.0));   // check 4
    harness.check(!area.contains(0.0, -1.0));   // check 5

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    harness.check(!area.contains(2.0, 2.0));    // check 17
  
    boolean pass = false;
    try
    {
      area.intersect(null);
    }
    catch (NullPointerException e)
    {
      pass = true;
    }

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            // transform the bbox
            PDRectangle bbox = form.getBBox().transform(transform);


            // clip the bbox to prevent giant bboxes from consuming all memory
            Area clip = (Area)getGraphicsState().getCurrentClippingPath().clone();
            clip.intersect(new Area(bbox.toGeneralPath()));
            Rectangle2D clipRect = clip.getBounds2D();
            this.bbox = new PDRectangle((float)clipRect.getX(), (float)clipRect.getY(),
                                        (float)clipRect.getWidth(), (float)clipRect.getHeight());


            // apply the underlying Graphics2D device's DPI transform

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