No negative values allowed in X or Y Axis


Hi, I am using Sparrow Toolkit to draw charts on a WPF application I am working on, and I am facing an annoying problem I need to solve ASAP. The problem is simple. I am drawing a chart (SparrowChart) where I plot a bunch of points (X, Y). Some of them have negative values for X or Y, but my chart only plots the positive square (X >= 0 and Y >= 0). I tried to set XAxis and YAxis MinValue to a negative value like -100 and I got a ArgumentOutOfRangeException. Does anyone know what to do?