/// <summary>
/// Gets the ordinate on the specified axis that is represented by the locating value
/// </summary>
/// <param name="locator">The ordinate that is to be displayed</param>
/// <param name="axis">The axis on which the ordinate is required</param>
/// <returns>The value of the ordinate that the point is to be drawn at</returns>
static int GetPointOrdinate(double locator, axisParameters axis, bool horizontal)
{
double locatorToRepresent = locator + (horizontal ? -1 : 1) * axis.baseOffset;
int position = (int)(axis.startLocation + (locatorToRepresent * axis.scaleFactor));
return(position);
}
public void SetupAxes(int xValues, double xStart, int yValues, double yStart)
{
horizontalAxis = new axisParameters()
{
axisLabelSpacing = (int)(xValues * 20 / (double)graphArea.Width),
baseOffset = 0,
scaleFactor = graphArea.Width / (double)xValues,
startLocation = (int)(xStart * graphArea.Width) + graphArea.Left
};
verticalAxis = new axisParameters()
{
axisLabelSpacing = (int)(yValues * 20 / (double)graphArea.Height),
baseOffset = 0,
scaleFactor = graphArea.Height / (double)yValues,
startLocation = (int)(yStart * graphArea.Height) + graphArea.Top
};
}
void Graph_VerticalAxisModified(object sender, axisParameters e)
{
Invalidate();
}
void Graph_HorizontalAxisModified(object sender, axisParameters e)
{
Invalidate();
}
public virtual void SetupAxes()
{
if (!AxesUserModified)
{
//If the user has not forced the axes to be displayed in a certain way
if (traces.Count == 0)
{
//No traces to use for scaling
horizontalAxis = verticalAxis = new axisParameters()
{
startLocation = graphPadding.Left,
baseOffset = 0,
scaleFactor = 1,
axisLabelSpacing = 1
};
}
else
{
//Set the axes based on the highest and lowest parameters in each axis.
double highX = traces[0].HighestX();
double highY = traces[0].HighestY();
double lowX = traces[0].LowestX();
double lowY = traces[0].LowestY();
for (int traceIndex = 1; traceIndex < traces.Count; traceIndex++)
{
if (traces[traceIndex].HighestX() > highX)
{
highX = traces[traceIndex].HighestX();
}
if (traces[traceIndex].HighestY() > highY)
{
highY = traces[traceIndex].HighestY();
}
if (traces[traceIndex].LowestX() < lowX)
{
lowX = traces[traceIndex].LowestX();
}
if (traces[traceIndex].LowestY() < lowY)
{
lowY = traces[traceIndex].LowestY();
}
}
horizontalAxis = new axisParameters()
{
baseOffset = (int)lowX,
startLocation = (int)(graphArea.Width * (-lowX / (highX - lowX))),
scaleFactor = graphArea.Width / (highX - lowX),
axisLabelSpacing = 30
};
verticalAxis = new axisParameters()
{
baseOffset = (int)lowY,
startLocation = (int)(graphArea.Height * (highY / (highY - lowY))),
scaleFactor = graphArea.Height / (highY - lowY),
axisLabelSpacing = 30
};
}
}
}
public void SetupAxes(axisParameters xAxis, axisParameters yAxis)
{
horizontalAxis = xAxis;
verticalAxis = yAxis;
}
public void SetVerticalAxis(axisParameters axis)
{
this.verticalAxis = axis;
AxesUserModified = true;
}
public void SetHorizontalAxis(axisParameters axis)
{
this.horizontalAxis = axis;
AxesUserModified = true;
}
