public ShowCluster() {
// initialize display and data
super(new Visualization());
initDataGroups();
Renderer nodeR = new LabelRenderer("name");
// This isn't enough, because the default color is fully transparent,
// so the Labels would be drawn but still don't visible. Next,
// add a ColorAction which assigns a color to the Labels:
ColorAction nText = new ColorAction(NODES, VisualItem.TEXTCOLOR);
nText.setDefaultColor(ColorLib.gray(0));
nText.add("_hover", ColorLib.gray(255));
// set up the renderers
// draw the nodes as basic shapes
// Renderer nodeR = new ShapeRenderer(20);
// draw aggregates as polygons with curved edges
Renderer polyR = new PolygonRenderer(Constants.POLY_TYPE_CURVE);
((PolygonRenderer)polyR).setCurveSlack(0.15f);
DefaultRendererFactory drf = new DefaultRendererFactory();
drf.setDefaultRenderer(nodeR);
drf.add("ingroup('aggregates')", polyR);
m_vis.setRendererFactory(drf);
// set up the visual operators
// first set up all the color actions
ColorAction nStroke = new ColorAction(NODES, VisualItem.STROKECOLOR);
nStroke.setDefaultColor(ColorLib.gray(100));
nStroke.add("_hover", ColorLib.gray(50));
ColorAction nFill = new ColorAction(NODES, VisualItem.FILLCOLOR);
nFill.setDefaultColor(ColorLib.gray(255));
nFill.add("_hover", ColorLib.gray(200));
ColorAction nEdges = new ColorAction(EDGES, VisualItem.STROKECOLOR);
nEdges.setDefaultColor(ColorLib.gray(100));
ColorAction aStroke = new ColorAction(AGGR, VisualItem.STROKECOLOR);
aStroke.setDefaultColor(ColorLib.gray(200));
aStroke.add("_hover", ColorLib.rgb(255,100,100));
int[] palette = new int[] {
ColorLib.rgba(255,200,200,150),
ColorLib.rgba(200,255,200,150),
ColorLib.rgba(200,200,255,150),
ColorLib.rgba(200,200,200,150),
ColorLib.rgba(255,100,100,150),
ColorLib.rgba(100,255,100,150),
ColorLib.rgba(100,100,255,150),
ColorLib.rgba(100,100,100,150)
};
ColorAction aFill = new DataColorAction(AGGR, "id", Constants.NOMINAL, VisualItem.FILLCOLOR, palette);
// bundle the color actions
ActionList colors = new ActionList();
colors.add(nStroke);
colors.add(nFill);
colors.add(nEdges);
colors.add(aStroke);
colors.add(aFill);
colors.add(nText);
// now create the main layout routine
ActionList layout = new ActionList(Activity.INFINITY);
layout.add(colors);
layout.add(new ForceDirectedLayout(GRAPH, true));
layout.add(new AggregateLayout(AGGR));
layout.add(new RepaintAction());
m_vis.putAction("layout", layout);
// set up the display
setSize(500,500);
pan(250, 250);
setHighQuality(true);
addControlListener(new AggregateDragControl());
addControlListener(new ZoomControl());
addControlListener(new PanControl());
// set things running
m_vis.run("layout");
}