private void DravPolyline(double x, double y, double maxValueX = 0, double maxValueY = 0)
{
if (double.IsNaN(x) || double.IsNaN(y) || double.IsNaN(maxValueX) || double.IsNaN(maxValueY))
{
return;
}
if (double.IsInfinity(x) || double.IsInfinity(y) || double.IsInfinity(maxValueX) || double.IsInfinity(maxValueY))
{
return;
}
if (maxValueX == 0 || maxValueY == 0)
{
maxValueY = _current_MaxValue_Y;
maxValueX = _current_MaxValue_X;
}
double copyX = x;
double copyY = y;
using (MathXY mathPoint = new MathXY())
{
AxisPosition = mathPoint.GetAxisPosition(copyX, copyY, valueOsX, valueOsY, heightChar, ChangeScaleAxisX, ChangeScaleAxisY);
if (AxisPosition != null)
{
lineChar.Points.Add(new Point(AxisPosition.PositionX, AxisPosition.PositionY));
}
AxisPosition.Dispose();
}
}
//drawing a chart
public PositionXY GetAxisPosition(double X, double Y, double distancePointAxisX, double distancePointAxisY, double height, double ChangeScaleAxisX, double ChangeScaleAxisY)
{
if (double.IsNaN(X) || double.IsNaN(Y) || double.IsNaN(distancePointAxisX) || double.IsNaN(distancePointAxisY) || double.IsNaN(height) || (double.IsNaN(ChangeScaleAxisX) || double.IsNaN(ChangeScaleAxisY)))
{
return(null);
}
if (double.IsInfinity(X) || double.IsInfinity(Y) || double.IsInfinity(distancePointAxisX) || double.IsInfinity(distancePointAxisY) || double.IsInfinity(height) || (double.IsInfinity(ChangeScaleAxisX) || double.IsInfinity(ChangeScaleAxisY)))
{
return(null);
}
position = new PositionXY()
{
//calculation of coordinates X and Y
PositionX = distancePointAxisY * X - (ChangeScaleAxisX * distancePointAxisY),
PositionY = (ChangeScaleAxisY * distancePointAxisX) - (distancePointAxisX * Y - height)
};
return(position);
}
