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annotate scraps/plot.yeti @ 236:ccca84efa36a sparse

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Extract values and slices (rows, columns) from sparse matrices
author Chris Cannam
date Sun, 19 May 2013 22:16:02 +0100
parents 8f6c2f87dc35
children
rev   line source
Chris@108 1 module scraps.plot;
Chris@108 2
Chris@107 3 import org.jzy3d.chart: Chart;
Chris@108 4 import org.jzy3d.plot3d.rendering.canvas: Quality;
Chris@107 5 import org.jzy3d.maths: Coord3d;
Chris@107 6 import org.jzy3d.plot3d.primitives: MultiColorScatter;
Chris@107 7 import org.jzy3d.colors.colormaps: ColorMapRainbow;
Chris@107 8 import org.jzy3d.colors: ColorMapper;
Chris@108 9 import org.jzy3d.colors: Color;
Chris@108 10 import org.jzy3d.chart: ChartLauncher;
Chris@108 11
Chris@108 12 points = new Coord3d[1000];
Chris@108 13 r () = Math#random() - 0.5; for [0..999] do i: points[i] := new Coord3d(r(),r(),r()) done;
Chris@107 14 m = new MultiColorScatter(points, new ColorMapper(new ColorMapRainbow (), -0.5, 0.5));
Chris@108 15 c = new Chart(Quality#Advanced);
Chris@107 16 c#getAxeLayout()#setMainColor(Color#WHITE);
Chris@107 17 c#getView()#setBackgroundColor(Color#BLACK);
Chris@107 18 c#getScene()#add(m);
Chris@107 19 ChartLauncher#openChart(c);