Changeset 14008 for trunk/sources/HeuristicLab.Problems.DataAnalysis.Views/3.4/Regression/RegressionSolutionLineChartView.cs

Timestamp:

07/06/16 14:50:17 (8 years ago)

Author:

bburlacu

Message:

#2594: Added chart util method to calculate the "optimal" axis interval (reducing the number of fractional digits to make it look nice). Modified the regression solution line chart and scatter plot to use the new scaling method.

File:

• trunk/sources/HeuristicLab.Problems.DataAnalysis.Views/3.4/Regression/RegressionSolutionLineChartView.cs (modified) (2 diffs)

trunk/sources/HeuristicLab.Problems.DataAnalysis.Views/3.4/Regression/RegressionSolutionLineChartView.cs

@@ -26 +26 @@
 using System.Windows.Forms.DataVisualization.Charting;
 using HeuristicLab.MainForm;
+using HeuristicLab.Visualization.ChartControlsExtensions;
 
 namespace HeuristicLab.Problems.DataAnalysis.Views {
@@ -96 +97 @@
         this.ToggleSeriesData(this.chart.Series[ESTIMATEDVALUES_ALL_SERIES_NAME]);
 
+        // set the y-axis bounds
+        var axisY = this.chart.ChartAreas[0].AxisY;
+        double min = double.MaxValue, max = double.MinValue;
+        foreach (var point in chart.Series.SelectMany(x => x.Points)) {
+          if (!point.YValues.Any() || double.IsInfinity(point.YValues[0]) || double.IsNaN(point.YValues[0]))
+            continue;
+          var y = point.YValues[0];
+          if (y < min)
+            min = y;
+          if (y > max)
+            max = y;
+        }
+
+        double axisMin, axisMax, axisInterval;
+        ChartUtil.CalculateOptimalAxisInterval(min, max, out axisMin, out axisMax, out axisInterval);
+        axisY.Minimum = axisMin;
+        axisY.Maximum = axisMax;
+        axisY.Interval = axisInterval;
+
         UpdateCursorInterval();
         this.UpdateStripLines();