private void CalculatePathInternalAsy(NuGenFormula fml, bool force)
{
if (fml.draw && (force || _forceFormula == i - 1 ||
fml.PaintValidate.Start > (double)(-_gitter.X) / w ||
fml.PaintValidate.End < (double)(this.Width - _gitter.X) / w))
{
if (fml.HasChildren)
{
for (int _i = 0; _i < fml.Children.Count; _i++)
{
CalculatePathInternalAsy(fml.Children[_i], force);
}
return;
}
NuGenInterpreter.SetVariableValue(_vara, fml.Param);
fml.pth.Reset();
fml.pthasympt.Reset();
//intptr.WertändernUS(Math.Max(begin/w,fml.intervall.start));
ppy = py = GetVal(fml._ve, Math.Max(begin / w, fml.Interval.Start)) * -h; /////
SaveLine(fml.pthasympt, -2e5f * h, GetValIS(fml._ve, -2e5f) * -h, 2e5f * h, GetValIS(fml._ve, 2e5f) * -h);
pcurr = 0;
for (d = Math.Max(begin, fml.Interval.Start * w) + 1.0;
d <= Math.Min(end, fml.Interval.End * w); d++, pcurr++)
{
//intptr.WertändernUS(d/w);
y = GetVal(fml._ve, d / w) * -h; ///////
if (SAsymp(ppy, py, y))
{
fml.pthasympt.StartFigure();
fml.pthasympt.AddLine((float)d, 2e5f, (float)d, -2e5f);
fml.pth.StartFigure();
}
else
{
fml.pth.AddLine((float)(d - 1.0), py, (float)d, y);
}
ppy = py;
py = y;
if (Success != null)
{
Success(
pcurr,
pmax,
string.Format(
Resources.Text_VisiPlot2D_SuccessDescription,
i.ToString(CultureInfo.CurrentCulture),
_formulas.Count.ToString(CultureInfo.CurrentCulture)
)
);
}
}
fml.PaintValidate = new NuGenPlotInterval(begin / w, end / w);
_forceFormula = -1;
}
}
private NuGenFormula(string formel, NuGenPlotInterval intervall, Color frb, bool draw, NuGenFormula[] children, double param)
{
_formel = formel;
_children = new NuGenFormulaCollectionBase();
if (children != null)
{
_children.AddRange(children);
}
this._param = param;
this._formulaElement = NuGenInterpreter.ParseInfixExpression(formel);
this._interval = intervall;
this.frb = frb;
this._paintValidate = new NuGenPlotInterval(0.0, 0.0);
this.draw = draw;
_pth = new GraphicsPath();
_pthasympt = new GraphicsPath();
}
private float GetValIS(NuGenFormulaElement fml, double val)
{
NuGenInterpreter.SetVariableValue(_varx, val);
float res = (float)fml.Value;
if (float.IsNaN(res))
{
return(0f);
}
else if (float.IsPositiveInfinity(res))
{
return(2e30f);
}
else if (float.IsNegativeInfinity(res))
{
return(-2e30f);
}
else
{
return(res);
}
}
