Changeset 12882 for branches/BubbleChart/HeuristicLab.Optimization.BubbleChart/3.3/BubbleChartView.cs

Timestamp:

08/19/15 13:27:06 (7 years ago)

Author:

pfleck

Message:

#2379
Fixed zooming issues.
Added "no data available" label.

File:

• branches/BubbleChart/HeuristicLab.Optimization.BubbleChart/3.3/BubbleChartView.cs (modified) (2 diffs)

branches/BubbleChart/HeuristicLab.Optimization.BubbleChart/3.3/BubbleChartView.cs

@@ -197 +197 @@
       chart.ChartAreas[0].AxisY.IsMarginVisible = !(YAxisValue != null && YAxisValue.Contains(AxisDimension.Index.ToString()));
 
-      if (Content == null || string.IsNullOrEmpty(XAxisValue) || string.IsNullOrEmpty(YAxisValue)) return;
-
-      var xss = GetValues(XAxisValue);
-      var yss = GetValues(YAxisValue);
-
-      if (xss.Count == yss.Count) {
-        for (int i = 0; i < xss.Count; i++)
-          AddPoints(xss[i], yss[i], series);
-      } else if (xss.Count == 1 || yss.Count == 1) {
-        for (int i = 0; i < xss.Count; i++)
-          for (int j = 0; j < yss.Count; j++)
-            AddPoints(xss[i], yss[j], series);
+      if (Content != null && !string.IsNullOrEmpty(XAxisValue) && !string.IsNullOrEmpty(YAxisValue)) {
+        var xss = GetValues(XAxisValue);
+        var yss = GetValues(YAxisValue);
+
+        if (xss.Count == yss.Count) {
+          for (int i = 0; i < xss.Count; i++)
+            AddPoints(xss[i], yss[i], series);
+        } else if (xss.Count == 1 || yss.Count == 1) {
+          for (int i = 0; i < xss.Count; i++)
+            for (int j = 0; j < yss.Count; j++)
+              AddPoints(xss[i], yss[j], series);
+        }
+      }
+
+      if (chart.Series[0].Points.Count == 0) {
+        noDataLabel.Visible = true;
+      } else {
+        noDataLabel.Visible = false;
+        UpdateMarkerSizes();
+        UpdateCursorInterval();
       }
 
@@ -520 +528 @@
       }
     }
+    private void UpdateCursorInterval() {
+      double xMin = double.MaxValue;
+      double xMax = double.MinValue;
+      double yMin = double.MaxValue;
+      double yMax = double.MinValue;
+
+      foreach (var point in chart.Series[0].Points) {
+        if (point.IsEmpty) continue;
+        if (point.XValue < xMin) xMin = point.XValue;
+        if (point.XValue > xMax) xMax = point.XValue;
+        if (point.YValues[0] < yMin) yMin = point.YValues[0];
+        if (point.YValues[0] > yMax) yMax = point.YValues[0];
+      }
+
+      double xRange = 0.0;
+      double yRange = 0.0;
+      if (xMin != double.MaxValue && xMax != double.MinValue) xRange = xMax - xMin;
+      if (yMin != double.MaxValue && yMax != double.MinValue) yRange = yMax - yMin;
+
+      if (xRange.IsAlmost(0.0)) xRange = 1.0;
+      if (yRange.IsAlmost(0.0)) yRange = 1.0;
+      double xDigits = (int)Math.Log10(xRange) - 3;
+      double yDigits = (int)Math.Log10(yRange) - 3;
+      double xZoomInterval = Math.Pow(10, xDigits);
+      double yZoomInterval = Math.Pow(10, yDigits);
+      this.chart.ChartAreas[0].CursorX.Interval = xZoomInterval;
+      this.chart.ChartAreas[0].CursorY.Interval = yZoomInterval;
+
+      // TODO
+      //code to handle TimeSpanValues correct
+      //int axisDimensionCount = Enum.GetNames(typeof(AxisDimension)).Count();
+      //int columnIndex = xAxisComboBox.SelectedIndex - axisDimensionCount;
+      //if (columnIndex >= 0 && Content.GetValue(0, columnIndex) is TimeSpanValue)
+      //  this.chart.ChartAreas[0].CursorX.Interval = 1;
+      //columnIndex = yAxisComboBox.SelectedIndex - axisDimensionCount;
+      //if (columnIndex >= 0 && Content.GetValue(0, columnIndex) is TimeSpanValue)
+      //  this.chart.ChartAreas[0].CursorY.Interval = 1;
+    }
+
     #endregion