public void InitTicks(double[] ticks)
{
if (ticks == null || ticks.Length == 0)
{
return;
}
shouldRound = true;
try
{
double start = ticks[0];
double finish = ticks[ticks.Length - 1];
if (start == finish)
{
shouldRound = false;
return;
}
double delta = finish - start;
rounding = (int)Math.Round(Math.Log10(delta));
double newStart = RoundHelper.Round(start, rounding);
double newFinish = RoundHelper.Round(finish, rounding);
if (newStart == newFinish)
{
rounding--;
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
}
}
public void InitTicks(TickInfo[] ticks)
{
if (ticks == null || ticks.Length == 0 || (!(ticks.First().Value is double)))
{
return;
}
shouldRound = true;
try
{
double start = (double)ticks[0].Value;
double finish = (double)ticks[ticks.Length - 1].Value;
if (start == finish)
{
shouldRound = false;
DebugTraceLog.WriteLine("shouldRound = false;");
return;
}
double delta = finish - start;
rounding = (int)Math.Round(Math.Log10(delta));
double newStart = RoundHelper.Round(start, rounding);
double newFinish = RoundHelper.Round(finish, rounding);
if (newStart == newFinish)
{
rounding--;
}
}
catch
{
}
}
private string GetStringCore(object value)
{
string res;
if (value is double && shouldRound)
{
int round = Math.Min(15, Math.Max(-15, rounding - 2));
res = RoundHelper.Round((double)value, round).ToString();
}
else
{
res = value.ToString();
}
return(res);
}
protected virtual double CalculateTickStep(double ss, double ee, int count)
{
double delta = ee - ss;
int log = (int)Math.Round(Math.Log10(delta));
double newStart = RoundHelper.Round(ss, log);
double newStop = RoundHelper.Round(ee, log);
if (newStart == newStop)
{
log--;
newStart = RoundHelper.Round(ss, log);
newStop = RoundHelper.Round(newStop, log);
}
if (newStop < newStart)
{
var t = newStart;
newStart = newStop;
newStop = t;
}
// calculating step between ticks
double unroundedStep = (newStop - newStart) / count;
int stepLog = log;
// trying to round step
double step = RoundHelper.Round(unroundedStep, stepLog);
if (step == 0)
{
stepLog--;
step = RoundHelper.Round(unroundedStep, stepLog);
if (step == 0)
{
// step will not be rounded if attempts to be rounded to zero.
step = unroundedStep;
}
}
return(step);
}
public double[] CreateTicks(Range <double> value, bool only_inside = true)
{
double start = value.Min;
double finish = value.Max;
double d = finish - start;
if (d == 0)
{
return new double[] { start, finish }
}
;
double temp = CalculateInterval();
double min = Math.Floor(start / temp);
double max = Math.Floor(finish / temp);
int count = (int)(max - min + 1);
List <double> res = new List <double>();
double x0 = min * temp;
for (int i = 0; i < count + 1; i++)
{
double v = RoundHelper.Round(x0 + i * temp, beta);
if (only_inside)
{
if (v >= start && v <= finish)
{
res.Add(v);
}
}
else
{
res.Add(v);
}
}
return(res.ToArray());
}
}
public override IEnumerable <TickInfo> Ticks()
{
if (start == stop)
{
yield break;
}
#if true
double ss = start < stop ? start : stop;
double ee = start > stop ? start : stop;
double delta = ee - ss;
int log = (int)Math.Round(Math.Log10(delta));
double newStart = RoundHelper.Round(ss, log);
double newStop = RoundHelper.Round(ee, log);
if (newStart == newStop)
{
log--;
newStart = RoundHelper.Round(ss, log);
newStop = RoundHelper.Round(newStop, log);
}
// calculating step between ticks
double unroundedStep = (newStop - newStart) / tickCount;
int stepLog = log;
// trying to round step
double step = RoundHelper.Round(unroundedStep, stepLog);
if (step == 0)
{
stepLog--;
step = RoundHelper.Round(unroundedStep, stepLog);
if (step == 0)
{
// step will not be rounded if attempts to be rounded to zero.
step = unroundedStep;
}
}
if (step != 0.0)
{
ticks = CreateTicks(ss, ee, step);
}
else
{
ticks = new double[] { };
}
int index = 0;
if (start < stop)
{
while (index < ticks.Length)
{
if (ticks[index] >= start && ticks[index] <= stop)
{
var value = ticks[index];
var pos = this.ToPixels(value);
yield return(new TickInfo(value, pos, true));
}
index++;
}
}
else
{
while (index < ticks.Length)
{
if (ticks[index] <= start && ticks[index] >= stop)
{
var value = ticks[index];
var pos = this.ToPixels(value);
yield return(new TickInfo(value, pos, true));
}
index++;
}
}
#else
double longTickStep = this.LongTickStep;
double longTickAnchor = NearestLongTick();
double longTickPos = longTickAnchor;
int longTickProcessed = 0;
int minorTickCount = this.MinorTickCount;
double minorTikcStep = longTickStep / (minorTickCount + 1);
double minorTickPos;
if (start < stop)
{
while (longTickPos <= stop)
{
if (longTickPos >= start)
{
var val = longTickPos;
var pos = this.ToPixels(longTickPos, isRevert);
yield return(new TickInfo(val, pos, true));
}
if (this.ShowMinorTick)
{
for (int i = 1; i <= minorTickCount; i++)
{
minorTickPos = longTickPos + minorTikcStep * i;
if (minorTickPos >= start && minorTickPos <= stop)
{
yield return(new TickInfo(minorTickPos, this.ToPixels(minorTickPos, isRevert), false));
}
}
}
longTickPos = longTickAnchor + (++longTickProcessed) * longTickStep;
}
}
else // start > stop
{
while (longTickPos >= stop)
{
if (longTickPos <= start)
{
yield return(new TickInfo(longTickPos, this.ToPixels(longTickPos, isRevert), true));
}
if (this.ShowMinorTick)
{
for (int i = 1; i <= minorTickCount; i++)
{
minorTickPos = longTickPos - minorTikcStep * i;
if (minorTickPos <= start && minorTickPos >= stop)
{
yield return(new TickInfo(minorTickPos, this.ToPixels(minorTickPos, isRevert), false));
}
}
}
longTickPos = longTickAnchor - (++longTickProcessed) * longTickStep;
}
}
#endif
}
