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source: trunk/sources/HeuristicLab.Visualization/3.2/AxisTicks.cs @ 2420

Last change on this file since 2420 was 1530, checked in by gkronber, 16 years ago

Moved source files of plugins Hive ... Visualization.Test into version-specific sub-folders. #576

File size: 765 bytes
Line 
1using System;
2using System.Collections.Generic;
3
4namespace HeuristicLab.Visualization {
5  public static class AxisTicks {
6    public static IEnumerable<double> GetTicks(int pixelsPerInterval, int screenSize, double worldSize, double worldStart) {
7      int intervals = screenSize/pixelsPerInterval;
8
9      if (intervals > 0) {
10        double step = worldSize/intervals;
11        step = Math.Pow(10, Math.Floor(Math.Log10(step)));
12        if (worldSize/(step*5) > intervals)
13          step = step*5;
14        else if (worldSize/(step*2) > intervals)
15          step = step*2;
16
17        for (double x = Math.Floor(worldStart/step)*step;
18             x <= worldStart + worldSize;
19             x += step)
20          yield return x;
21      }
22    }
23  }
24}
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