Examples of com.emitrom.lienzo.client.core.types.Point2D

Package com.emitrom.lienzo.client.core.types

Examples of com.emitrom.lienzo.client.core.types.Point2D

com.emitrom.lienzo.client.core.types.Point2D
Point2D can be used to represent a point or vector in 2D.
Some of the methods related to linear algebra come in two flavors, e.g. plus() and plusInSitu(). The first one does not modify the object that it is invoked on, but the second one does. The second one is a little faster as it does not need to create a new object. Think of them as the "+" and the "+=" operators respectively.

        {
            final int leng = points.size();


            for (int i = 0; i < leng; i++)
            {
                Point2D point = points.get(i);


                if (null != point)
                {
                    list.push(point);
                }

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        {
            final int leng = points.length;


            for (int i = 0; i < leng; i++)
            {
                Point2D point = points[i];


                if (null != point)
                {
                    list.push(point);
                }

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        {
            final int leng = points.getLength();


            for (int i = 0; i < leng; i++)
            {
                Point2D point = points.getPoint(i);


                if (null != point)
                {
                    list.push(point);
                }

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    {
        final double r = getRadius();


        final double a = ((Math.PI * 2) * percent);


        return new Point2D(getX() + Math.cos(a) * r, getY() + Math.sin(a) * r);
    }

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        return false;
    }


    protected void onMouseDown(NodeMouseDownEvent event)
    {
        m_last = new Point2D(event.getX(), event.getY());


        m_dragging = true;


        Transform transform = getTransform();

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        m_inverseTransform.transform(m_last, m_last);
    }


    protected void onMouseMove(NodeMouseMoveEvent event)
    {
        Point2D curr = new Point2D(event.getX(), event.getY());


        m_inverseTransform.transform(curr, curr);


        Transform transform = getTransform().copy();


        transform.translate(curr.getX() - m_last.getX(), curr.getY() - m_last.getY());


        setTransform(transform);


        m_last = curr;

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        return false;
    }


    protected void onMouseDown(NodeMouseDownEvent event)
    {
        m_start = new Point2D(event.getX(), event.getY());


        m_dragging = true;


        Transform transform = getTransform();

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        return false;
    }


    protected void onMouseDown(NodeMouseDownEvent event)
    {
        m_start = new Point2D(event.getX(), event.getY());


        m_dragging = true;


        m_dragLayer = m_viewport.getDraglayer();

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        }
        if ((m_maxScale > 0) && (newScale > m_maxScale))
        {
            scaleDelta = m_maxScale / currentScale;
        }
        Point2D p = new Point2D(event.getX(), event.getY());


        transform.getInverse().transform(p, p);


        transform = transform.copy();


        transform.scaleAboutPoint(scaleDelta, p.getX(), p.getY());


        setTransform(transform);


        redraw();
    }

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