Initial Commit

Charts/Axes/Numeric/NumericConversion.cs

@@ -0,0 +1,38 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Microsoft.Research.DynamicDataDisplay.Charts.Axes.Numeric
+{
+	internal sealed class NumericConversion
+	{
+		private readonly double min;
+		private readonly double length;
+		private readonly double minValue;
+		private readonly double valueLength;
+
+		public NumericConversion(double min, double minValue, double max, double maxValue)
+		{
+			this.min = min;
+			this.length = max - min;
+
+			this.minValue = minValue;
+			this.valueLength = maxValue - minValue;
+		}
+
+		public double FromDouble(double value)
+		{
+			double ratio = (value - min) / length;
+
+			return minValue + ratio * valueLength;
+		}
+
+		public double ToDouble(double value)
+		{
+			double ratio = (value - minValue) / valueLength;
+
+			return min + length * ratio;
+		}
+	}
+}