protected virtual void OnAxisChanged(ViewportAxis oldValue, ViewportAxis newValue)
{
RaiseEvent(new RoutedPropertyChangedEventArgs <ViewportAxis>(oldValue, newValue)
{
RoutedEvent = AxisChangedEvent
});
}
protected static Interval ToViewInterval(ViewportAxis axis)
{
var v = axis.View;
var s = v.Start;
var e = v.End;
return(new Interval(Math.Min(s, e), Math.Max(s, e)));
}
public override IEnumerable <Tuple <double, string> > GetMarks(ViewportAxis axis)
{
var interval = ToViewInterval(axis);
foreach (var index in _indexes)
{
if (interval.Start <= index.Item1 && interval.End >= index.Item1)
{
yield return(new Tuple <double, string>(ToClient(axis, index.Item1), index.Item2));
}
}
}
public override void IterateMajorGrid(ViewportAxis axis, Action <double> action)
{
var interval = ToViewInterval(axis);
foreach (var index in _indexes)
{
if (interval.Start <= index.Item1 && interval.End >= index.Item1)
{
action.Invoke(ToClient(axis, index.Item1));
}
}
}
public override void IterateMajorGrid(ViewportAxis axis, Action <double> action)
{
if (axis == null)
{
return;
}
var interval = ToViewInterval(axis);
var majorStep = Math.Abs(ToValue(axis, MinMajorGridStep) - ToValue(axis, 0));
IterateGrid(axis, interval, majorStep, action);
}
private void IterateGrid(ViewportAxis axis, Interval interval, double mstep, Action <double> action)
{
var mstart = interval.Start;
var pow = Math.Floor(Math.Log10(mstep)); //степень шага
mstep = Round(mstep, pow);
mstart = Math.Ceiling(mstart / mstep) * mstep;
for (var i = mstart; i <= interval.End; i += mstep)
{
action.Invoke(ToClient(axis, i));
}
}
public override void IterateMinorGrid(ViewportAxis axis, Action <double> minorGridAction)
{
var interval = ToViewInterval(axis);
var next = -MathHelper.RoundLogMax(LongLogEps);// first;
var prev = 0.0;
while (next >= interval.Start) //обходим отрицательные значения в логарифмической части
{
if (ToClient(axis, prev) - MinStep >= ToClient(axis, next))
{
prev = next;
}
for (int i = 2; i < 10; i++)
{
minorGridAction.Invoke(ToClient(axis, next * i));
}
next *= 10;
}
if (LongLogEps > interval.Start)
{
next = MathHelper.RoundLogMax(LongLogEps);
}
else
{
next = MathHelper.RoundLogMax(interval.Start);
}
prev = 0.0;
while (next <= interval.End) //Обходим положительные значения в логарифмической части
{
for (int i = 2; i < 10; i++)
{
minorGridAction.Invoke(ToClient(axis, next * i));
}
if (ToClient(axis, prev) + MinStep <= ToClient(axis, next))
{
prev = next;
}
next *= 10;
}
}
public override IEnumerable <Tuple <double, string> > GetMarks(ViewportAxis axis)
{
var interval = ToViewInterval(axis);
var next = -MathHelper.RoundLogMax(LongLogEps);// first;
var prev = 0.0;
while (next >= interval.Start) //обходим отрицательные значения в логарифмической части
{
if (ToClient(axis, prev) - MinStep >= ToClient(axis, next))
{
yield return(new Tuple <double, string>(ToClient(axis, next), next.ToString()));
prev = next;
}
next *= 10;
}
if (interval.Start < 0)
{
yield return(new Tuple <double, string>(ToClient(axis, 0), 0.ToString())); //Добавляем ноль(линейная часть)
}
if (LongLogEps > interval.Start)
{
next = MathHelper.RoundLogMax(LongLogEps);
}
else
{
next = MathHelper.RoundLogMax(interval.Start);
}
prev = 0.0;
while (next <= interval.End) //Обходим положительные значения в логарифмической части
{
if (ToClient(axis, prev) + MinStep <= ToClient(axis, next))
{
yield return(new Tuple <double, string>(ToClient(axis, next), next.ToString()));
prev = next;
}
next *= 10;
}
}
public override void IterateMajorGrid(ViewportAxis axis, Action <double> action)
{
var interval = ToViewInterval(axis);
var next = MathHelper.RoundLogMax(interval.Start);
if (next < double.Epsilon)
{
next = double.Epsilon;
}
do
{
var nextClient = ToClient(axis, next);
action.Invoke(nextClient);
next *= 10;
} while (next <= interval.End);
}
public override IEnumerable <Tuple <double, string> > GetMarks(ViewportAxis axis)
{
var interval = ToViewInterval(axis);
var first = MathHelper.RoundLogMax(interval.Start);
var next = first;
if (next < double.Epsilon)
{
next = double.Epsilon;
}
do
{
var nextClient = ToClient(axis, next);
yield return(new Tuple <double, string>(nextClient, next.ToString(System.Globalization.CultureInfo.CurrentUICulture)));
next *= 10;
} while (next <= interval.End);
}
public override void IterateMajorGrid(ViewportAxis axis, Action <double> action)
{
var interval = ToViewInterval(axis);
var next = -MathHelper.RoundLogMax(LongLogEps);// first;
var prev = 0.0;
while (next >= interval.Start) //обходим отрицательные значения в логарифмической части
{
if (ToClient(axis, prev) - MinStep >= ToClient(axis, next))
{
action.Invoke(ToClient(axis, next));
prev = next;
}
next *= 10;
}
if (interval.Start < 0)
{
action.Invoke(ToClient(axis, 0)); //Добавляем ноль(линейная часть)
}
if (LongLogEps > interval.Start)
{
next = MathHelper.RoundLogMax(LongLogEps);
}
else
{
next = MathHelper.RoundLogMax(interval.Start);
}
prev = 0.0;
while (next <= interval.End) //Обходим положительные значения в логарифмической части
{
if (ToClient(axis, prev) + MinStep <= ToClient(axis, next))
{
action.Invoke(ToClient(axis, next));
prev = next;
}
next *= 10;
}
}
public override IEnumerable <Tuple <double, string> > GetMarks(ViewportAxis axis)
{
if (axis == null)
{
yield break;
}
var interval = ToViewInterval(axis);
var majorStep = Math.Abs(ToValue(axis, MinMajorGridStep) - ToValue(axis, 0));
var pow = Math.Floor(Math.Log10(majorStep));
majorStep = Round(majorStep, pow);
var start = interval.Start;
start = Math.Ceiling(start / majorStep) * majorStep;
if (pow < -15)
{
pow = -15;
}
if (pow < 0)
{
start = Math.Round(start, -(int)pow);
}
var minorStep = Math.Abs(ToValue(axis, MinStep) - ToValue(axis, 0));
if (minorStep <= double.Epsilon)
{
yield break;
}
foreach (var m in IterateMarks(axis, interval, minorStep, start))
{
yield return(m);
}
}
protected override IEnumerable <Tuple <double, string> > IterateMarks(ViewportAxis axis, Interval interval, double mstep, double start)
{
var pow = Math.Floor(Math.Log10(mstep)); //степень шага
mstep = Round(mstep, pow);
if (pow < -15)
{
pow = -15;
}
for (var i = start; i < interval.End; i += mstep)
{
var iRound = pow < 0 ? Math.Round(i, -(int)pow) : i;
yield return(new Tuple <double, string>(ToClient(axis, iRound), DateTime.FromOADate(iRound).ToString("yyyy/MM/dd HH:mm:ss")));
}
for (var i = start - mstep; i > interval.Start; i -= mstep)
{
var iRound = pow < 0 ? Math.Round(i, -(int)pow) : i;
yield return(new Tuple <double, string>(ToClient(axis, iRound), DateTime.FromOADate(iRound).ToString("yyyy/MM/dd HH:mm:ss")));
}
}
protected virtual IEnumerable <Tuple <double, string> > IterateMarks(ViewportAxis axis, Interval interval, double mstep, double start)
{
var pow = Math.Floor(Math.Log10(mstep)); //степень шага
mstep = Round(mstep, pow);
if (pow < -15)
{
pow = -15;
}
for (var i = start; i < interval.End; i += mstep)
{
var iRound = pow < 0 ? Math.Round(i, -(int)pow) : i;
yield return(new Tuple <double, string>(ToClient(axis, iRound), iRound.ToString(@"G5")));
}
for (var i = start - mstep; i > interval.Start; i -= mstep)
{
var iRound = pow < 0 ? Math.Round(i, -(int)pow) : i;
yield return(new Tuple <double, string>(ToClient(axis, iRound), iRound.ToString(@"G5")));
}
}
public override void IterateMinorGrid(ViewportAxis axis, Action <double> minorGridAction)
{
var interval = ToViewInterval(axis);
var first = MathHelper.RoundLogMax(interval.Start);
var next = first;
if (next < double.Epsilon)
{
next = double.Epsilon;
}
// мелкие линии до первой крупной(ибо она не учитывается)
var minorStart = MathHelper.RoundLogMin(interval.Start);
for (int i = 2; i < 10; i++)
{
if (minorStart * i > interval.Start)
{
minorGridAction.Invoke(ToClient(axis, minorStart * i));
}
}
do
{
for (int i = 2; i < 10; i++)
{
var view = next * i;
if (interval.Start < view && view < interval.End)
{
minorGridAction.Invoke(ToClient(axis, view));
}
}
next *= 10;
} while (next <= interval.End);
}
public abstract IEnumerable <Tuple <double, string> > GetMarks(ViewportAxis axis);
public override void IterateMinorGrid(ViewportAxis axis, Action <double> action)
{
}
public abstract void IterateMajorGrid(ViewportAxis axis, Action <double> gridAction);
protected static double ToClient(ViewportAxis axis, double value)
{
return(axis.ViewToClient(value));
}
public void InitalizeHorizontalAxis(ViewportAxis axis, AxisMarkProvider markProvider)
{
HorizontalAxis = axis;
BottomAxis.MarkProvider = markProvider;
TopAxis.MarkProvider = markProvider;
}
protected static double ToValue(ViewportAxis axis, double value)
{
return(axis.ClientToView(value));
}
public Viewport(ViewportAxis horizontalAxis, ViewportAxis verticalAxis)
{
VerticalAxis = verticalAxis;
HorizontalAxis = horizontalAxis;
}
public void InitalizeVerticalAxis(ViewportAxis axis, AxisMarkProvider markProvider)
{
VerticalAxis = axis;
LeftAxis.MarkProvider = markProvider;
RightAxis.MarkProvider = markProvider;
}
