Package prefuse.visual

Examples of prefuse.visual.VisualItem

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        int end = start + model.getExtent();
        double total = (double)(end-start);
       
        Iterator iter = m_vis.items(m_group, m_filter);
        while ( iter.hasNext() ) {
            VisualItem item = (VisualItem)iter.next();
            int order = model.getIndex(item.get(m_field)) - start;
            set(item, order/total);
        }
    }
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            // fill the rendering and picking queues
            m_queue.clear();   // clear the queue
            Iterator items = m_vis.items(m_predicate);
            for ( m_visibleCount=0; items.hasNext(); ++m_visibleCount ) {
                VisualItem item = (VisualItem)items.next();
                Rectangle2D bounds = item.getBounds();
                m_bounds.union(bounds); // add to item bounds
               
                if ( m_clip.intersects(bounds, pixel) )
                    m_queue.addToRenderQueue(item);
                if ( item.isInteractive() )
                    m_queue.addToPickingQueue(item);
            }
           
            // sort the rendering queue
            m_queue.sortRenderQueue();
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        // ensure that the picking queue has been z-sorted
        if ( !m_queue.psorted )
            m_queue.sortPickingQueue();
        // walk queue from front to back looking for hits
        for ( int i = m_queue.psize; --i >= 0; ) {
            VisualItem vi = m_queue.pitems[i];
            if ( !vi.isValid() ) continue; // in case tuple went invalid
            Renderer r = vi.getRenderer();
            if (r!=null && vi.isInteractive() && r.locatePoint(p2, vi)) {
                return vi;
            }
        }
        return null;
    }
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        //if ( vlo == 10 || vlo == 1 || vlo == 0.1 ) vlo = 0;
       
        // mark previously visible labels
        Iterator iter = labels.tuples();
        while ( iter.hasNext() ) {
            VisualItem item = (VisualItem)iter.next();
            reset(item);
            double v = item.getDouble(VALUE);
            double x = span==0 ? 0 : ((v-m_lo)/span)*breadth;
            set(item, x, b);
        }

        Index index = labels.index(VALUE);
        double step = getLinearStep(span, span==0 ? 0 : breadth/span);
        if ( step == 0 ) step = 1;
        int r;

        for ( double x, v=vlo; v<=m_hi; v+=step ) {
            x = ((v-m_lo)/span)*breadth;
            if ( x < -0.5 ) {
                continue;
            } else if ( (r=index.get(v)) >= 0 ) {
                VisualItem item = labels.getItem(r);
                item.setVisible(true);
                item.setEndVisible(true);
            } else {
                VisualItem item = labels.addItem();
                item.set(LABEL, m_nf.format(v));
                item.setDouble(VALUE, v);
                double f = pspan==0 ? 0 : ((v-m_prevlo)/pspan);
                if ( f <= 0 || f >= 1.0 ) item.setStartVisible(true);
                set(item, f*breadth, b);
                set(item, x, b);
            }
        }
    }
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        double sspan = MathLib.safeSqrt(m_hi)-slo;
       
        // mark previously visible labels
        Iterator iter = labels.tuples();
        while ( iter.hasNext() ) {
            VisualItem item = (VisualItem)iter.next();
            reset(item);
            double v = item.getDouble(VALUE);
            double x = span==0 ? 0 : ((MathLib.safeSqrt(v)-slo)/sspan)*breadth;
            set(item, x, b);
        }
       
        Index index = labels.index(VALUE);
        double step = getLinearStep(span, breadth/span);
        if ( step == 0 ) step = 1;
        int r;
        for ( double x, v=vlo; v<=m_hi; v+=step ) {
            x = ((MathLib.safeSqrt(v)-slo)/sspan)*breadth;
            if ( x < -0.5 ) {
                continue;
            } else if ( (r=index.get(v)) >= 0 ) {
                VisualItem item = labels.getItem(r);
                item.setVisible(true);
                item.setEndVisible(true);
            } else {
                VisualItem item = labels.addItem();
                item.set(LABEL, m_nf.format(v));
                item.setDouble(VALUE, v);
                double f = spspan==0 ? 0 : ((MathLib.safeSqrt(v)-splo)/spspan);
                if ( f <= 0 || f >= 1.0 ) {
                    item.setStartVisible(true);
                }
                set(item, f*breadth, b);
                set(item, x, b);
            }
        }
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                step = 10*step;
            }
            val = ((val-llo)/lspan)*breadth;
            if ( val < -0.5 ) continue;
           
            VisualItem item = labels.addItem();
            set(item, val, b);
            String label = i==0 ? m_nf.format(v) : null;
            item.set(LABEL, label);
            item.setDouble(VALUE, v);
        }
    }
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        if ( step <= 0 ) step = 1;
       
        // mark previously visible labels
        Iterator iter = labels.tuples();
        while ( iter.hasNext() ) {
            VisualItem item = (VisualItem)iter.next();
            reset(item);
            double v = item.getDouble(VALUE);
            double x = span==0 ? 0 : ((v-m_lo)/span)*breadth;
            set(item, x, b);
        }

        Index index = labels.index(VALUE);
       
        // handle remaining labels
        for ( int r, v=(int)m_lo; v<=m_hi; v+=step ) {
            if ( (r=index.get((double)v)) >= 0 ) {
                VisualItem item = labels.getItem(r);
                item.set(VisualItem.LABEL, model.getObject(v).toString());
                item.setVisible(true);
                item.setEndVisible(true);
            } else {
                VisualItem item = labels.addItem();
                item.set(VisualItem.LABEL, model.getObject(v).toString());
                item.setDouble(VisualItem.VALUE, v);
                double f = pspan==0 ? 0 : ((v-m_prevlo)/pspan);
                if ( f <= 0 || f >= 1.0 ) item.setStartVisible(true);
                set(item, f*breadth, b);
                set(item, (v-m_lo)*breadth/span, b);
            }
        }
    }
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     * Remove axis labels no longer being used.
     */
    protected void garbageCollect(VisualTable labels) {
        Iterator iter = labels.tuples();
        while ( iter.hasNext() ) {
            VisualItem item = (VisualItem)iter.next();
            if ( !item.isStartVisible() && !item.isEndVisible() ) {
                labels.removeTuple(item);
            }
        }
    }
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        Point2D anchor = correct(m_anchor, bounds);
       
        final Iterator iter = getVisualization().visibleItems(m_group);
       
        while ( iter.hasNext() ) {
            VisualItem item = (VisualItem)iter.next();
            if ( item.isFixed() ) continue;
           
            // reset distorted values
            // TODO - make this play nice with animation?
            item.setX(item.getEndX());
            item.setY(item.getEndY());
            item.setSize(item.getEndSize());
           
            // compute distortion if we have a distortion focus
            if ( anchor != null ) {
                Rectangle2D bbox = item.getBounds();
                double x = item.getX();
                double y = item.getY();
               
                // position distortion
                if ( m_distortX )
                    item.setX(x=distortX(x, anchor, bounds));
                if ( m_distortY )
                    item.setY(y=distortY(y, anchor, bounds));
               
                // size distortion
                if ( m_distortSize ) {
                    double sz = distortSize(bbox, x, y, anchor, bounds);
                    item.setSize(sz*item.getSize());
                }
            }
        }
    }
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    public void run(double frac) {
        // handle newly expanded subtrees - ensure they emerge from
        // a visible ancestor node
        Iterator items = m_vis.visibleItems(m_group);
        while ( items.hasNext() ) {
            VisualItem item = (VisualItem) items.next();
            if ( item instanceof NodeItem && !item.isStartVisible() ) {
                NodeItem n = (NodeItem)item;
                Point2D p = getPoint(n, true);
                n.setStartX(p.getX());
                n.setStartY(p.getY());
            }
        }
       
        // handle newly collapsed nodes - ensure they collapse to
        // the greatest visible ancestor node
        items = m_vis.items(m_group, StartVisiblePredicate.TRUE);
        while ( items.hasNext() ) {
            VisualItem item = (VisualItem) items.next();
            if ( item instanceof NodeItem && !item.isEndVisible() ) {
                NodeItem n = (NodeItem)item;
                Point2D p = getPoint(n, false);
                n.setStartX(n.getEndX());
                n.setStartY(n.getEndY());
                n.setEndX(p.getX());
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Related Classes of prefuse.visual.VisualItem

  • org.qi4j.envisage.graph.StackedGraphDisplay$AutoPanAction
  • org.qi4j.envisage.graph.StackedGraphDisplay$LabelLayout
  • org.qi4j.envisage.graph.TreeGraphDisplay
  • org.qi4j.envisage.graph.TreeGraphDisplay$AutoPanAction
  • org.qi4j.envisage.graph.TreeGraphDisplay$ExtendedFisheyeTreeFilter
  • org.rioproject.tools.ui.GraphView$LabelPositionLayout
  • paperscope.RadialGraph
  • paperscope.RadialGraph$NodeSpreadAction
  • prefuse.action.animate.AxisLabelAnimator
  • prefuse.action.animate.VisibilityAnimator
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