public OutputState(List <CalculatorCore> calcs, GraphRange xRange, GraphRange yRange, GraphRange zRange, DirectBitmap bitmap)
{
Calcs = calcs;
XRange = xRange;
YRange = yRange;
ZRange = zRange;
Bitmap = bitmap;
}
private static void MaybeChooseAutoZRange(GraphRange range, double[,] data)
{
if (data != null && range.AutoRange)
{
range.Lo = double.NaN;
range.Hi = double.NaN;
FindMinMax(data, ref range.Lo, ref range.Hi);
if (double.IsNaN(range.Lo))
{
range.Lo = -1;
range.Hi = 1;
}
}
}
public static GraphRange New(string rangeName, LNode range, int numPixels, Dictionary <Symbol, LNode> varDict)
{
if (range == null)
{
return new GraphRange(-1, 1, numPixels, Pens.MidnightBlue, null)
{
AutoRange = true
}
}
;
if (range.Calls(CodeSymbols.Colon, 2) && range[0].IsId && string.Compare(range[0].Name.Name, rangeName, true) == 0)
{
range = range[1]; // ignore axis prefix like "x:" or "y:"
}
if (range.Calls(CodeSymbols.Sub, 2) || range.Calls(CodeSymbols.DotDot, 2))
{
double lo = CalculatorCore.Eval(range[0], varDict);
double hi = CalculatorCore.Eval(range[1], varDict);
Pen pen = OutputState.MakePen(range);
string label = range.Attrs.Select(a => a.Value as string).FirstOrDefault(s => s != null);
var result = new GraphRange(lo, hi, numPixels, pen, label)
{
RangeExpr = range
};
foreach (var attr in range.Attrs)
{
if (attr.Value is int)
{
result.RoughLineCount = (int)attr.Value;
}
}
return(result);
}
throw new FormatException("Invalid range for {axis}: {range}".Localized("axis", rangeName, "range", range));
}
}
static double ChooseGridSpacing(out double lo, GraphRange range, double[,] data = null)
{
lo = range.Lo;
MaybeChooseAutoZRange(range, data);
return(ChooseGridSpacing(ref lo, range.Hi, range.RoughLineCount));
}
