/// <summary>
/// Gets the bounds.
/// </summary>
/// <param name="chart">The chart.</param>
/// <param name="secondaryAxis">The secondary axis.</param>
/// <param name="primaryAxis">The primary axis.</param>
/// <returns></returns>
public override SeriesBounds GetBounds(
CartesianChart <TDrawingContext> chart, ICartesianAxis secondaryAxis, ICartesianAxis primaryAxis)
{
var baseSeriesBounds = base.GetBounds(chart, secondaryAxis, primaryAxis);
if (baseSeriesBounds.HasData)
{
return(baseSeriesBounds);
}
var baseBounds = baseSeriesBounds.Bounds;
var tickPrimary = primaryAxis.GetTick(chart.ControlSize, baseBounds.VisiblePrimaryBounds);
var tickSecondary = secondaryAxis.GetTick(chart.ControlSize, baseBounds.VisibleSecondaryBounds);
var ts = tickSecondary.Value * DataPadding.X;
var tp = tickPrimary.Value * DataPadding.Y;
return
(new SeriesBounds(
new DimensionalBounds
{
SecondaryBounds = new Bounds
{
Max = baseBounds.SecondaryBounds.Max + 0.5 * secondaryAxis.UnitWidth,
Min = baseBounds.SecondaryBounds.Min - 0.5 * secondaryAxis.UnitWidth,
PaddingMax = ts,
PaddingMin = ts
},
PrimaryBounds = new Bounds
{
Max = baseBounds.PrimaryBounds.Max + tp,
Min = baseBounds.PrimaryBounds.Min < 0 ? baseBounds.PrimaryBounds.Min : 0,
PaddingMax = tp,
PaddingMin = baseBounds.PrimaryBounds.Min < 0 ? tp : 0,
},
VisibleSecondaryBounds = new Bounds
{
Max = baseBounds.VisibleSecondaryBounds.Max + 0.5 * secondaryAxis.UnitWidth + ts,
Min = baseBounds.VisibleSecondaryBounds.Min - 0.5 * secondaryAxis.UnitWidth - ts
},
VisiblePrimaryBounds = new Bounds
{
Max = baseBounds.VisiblePrimaryBounds.Max + tp,
Min = baseBounds.VisiblePrimaryBounds.Min < 0 ? baseBounds.PrimaryBounds.Min - tp : 0
},
MinDeltaPrimary = baseBounds.MinDeltaPrimary,
MinDeltaSecondary = baseBounds.MinDeltaSecondary
},
false));
}
public MeasureHelper(
Scaler scaler,
CartesianChart <TDrawingContext> cartesianChart,
IBarSeries <TDrawingContext> barSeries,
ICartesianAxis axis,
float p)
{
this.p = p;
uw = scaler.MeasureInPixels(axis.UnitWidth);
actualUw = uw;
var gp = (float)barSeries.GroupPadding;
if (uw - gp < 1)
{
gp -= uw - gp;
}
uw -= gp;
uwm = 0.5f * uw;
var pos = cartesianChart.SeriesContext.GetColumnPostion(barSeries);
var count = cartesianChart.SeriesContext.GetColumnSeriesCount();
cp = 0f;
if (!barSeries.IgnoresBarPosition && count > 1)
{
uw /= count;
uwm = 0.5f * uw;
cp = (pos - count / 2f) * uw + uwm;
}
if (uw > barSeries.MaxBarWidth)
{
uw = (float)barSeries.MaxBarWidth;
uwm = uw * 0.5f;
}
if (uw < 1)
{
uw = 1;
uwm = 0.5f;
}
}
/// <inheritdoc cref="CartesianSeries{TModel, TVisual, TLabel, TDrawingContext}.GetBounds(CartesianChart{TDrawingContext}, ICartesianAxis, ICartesianAxis)"/>
public override SeriesBounds GetBounds(
CartesianChart <TDrawingContext> chart, ICartesianAxis secondaryAxis, ICartesianAxis primaryAxis)
{
var baseSeriesBounds = base.GetBounds(chart, secondaryAxis, primaryAxis);
if (baseSeriesBounds.HasData)
{
return(baseSeriesBounds);
}
var baseBounds = baseSeriesBounds.Bounds;
var tickPrimary = primaryAxis.GetTick(chart.ControlSize, baseBounds.VisiblePrimaryBounds);
var tickSecondary = secondaryAxis.GetTick(chart.ControlSize, baseBounds.VisibleSecondaryBounds);
var ts = tickSecondary.Value * DataPadding.X;
var tp = tickPrimary.Value * DataPadding.Y;
if (baseBounds.VisibleSecondaryBounds.Delta == 0)
{
var ms = baseBounds.VisibleSecondaryBounds.Min == 0 ? 1 : baseBounds.VisibleSecondaryBounds.Min;
ts = 0.1 * ms * DataPadding.X;
}
if (baseBounds.VisiblePrimaryBounds.Delta == 0)
{
var mp = baseBounds.VisiblePrimaryBounds.Min == 0 ? 1 : baseBounds.VisiblePrimaryBounds.Min;
tp = 0.1 * mp * DataPadding.Y;
}
return
(new SeriesBounds(
new DimensionalBounds
{
PrimaryBounds = new Bounds
{
Max = baseBounds.SecondaryBounds.Max + 0.5 * secondaryAxis.UnitWidth,
Min = baseBounds.SecondaryBounds.Min - 0.5 * secondaryAxis.UnitWidth,
PaddingMax = ts,
PaddingMin = ts
},
SecondaryBounds = new Bounds
{
Max = baseBounds.PrimaryBounds.Max,
Min = baseBounds.PrimaryBounds.Min,
PaddingMax = tp,
PaddingMin = tp
},
VisiblePrimaryBounds = new Bounds
{
Max = baseBounds.VisibleSecondaryBounds.Max + 0.5 * secondaryAxis.UnitWidth,
Min = baseBounds.VisibleSecondaryBounds.Min - 0.5 * secondaryAxis.UnitWidth
},
VisibleSecondaryBounds = new Bounds
{
Max = baseBounds.VisiblePrimaryBounds.Max,
Min = baseBounds.VisiblePrimaryBounds.Min
},
MinDeltaPrimary = baseBounds.MinDeltaPrimary,
MinDeltaSecondary = baseBounds.MinDeltaSecondary
},
false));
}
/// <summary>
/// Initializes a new instance of the <see cref="Scaler"/> class.
/// </summary>
/// <param name="drawMagrinLocation">The draw margin location.</param>
/// <param name="drawMarginSize">Size of the draw margin.</param>
/// <param name="axis">The axis.</param>
/// <param name="usePreviousScale">Indicates if the scaler should be built based on the previous known data.</param>
/// <param name="bounds">Indicates the bounds to use.</param>
/// <exception cref="Exception">The axis is not ready to be scaled.</exception>
public Scaler(
LvcPoint drawMagrinLocation, LvcSize drawMarginSize, ICartesianAxis axis, bool usePreviousScale = false, Bounds?bounds = null)
{
if (axis.Orientation == AxisOrientation.Unknown)
{
throw new Exception("The axis is not ready to be scaled.");
}
_orientation = axis.Orientation;
var actualBounds = usePreviousScale ? axis.PreviousDataBounds : axis.DataBounds;
var actualVisibleBounds = usePreviousScale ? axis.PreviousVisibleDataBounds : axis.VisibleDataBounds;
var maxLimit = usePreviousScale ? axis.PreviousMaxLimit : axis.MaxLimit;
var minLimit = usePreviousScale ? axis.PreviousMinLimit : axis.MinLimit;
if (bounds != null)
{
actualBounds = bounds;
actualVisibleBounds = bounds;
}
if (actualBounds is null || actualVisibleBounds is null)
{
throw new Exception("bounds not found");
}
if (double.IsInfinity(actualBounds.Delta) || double.IsInfinity(actualVisibleBounds.Delta))
{
_maxVal = 0;
_minVal = 0;
_deltaVal = 0;
if (axis.Orientation == AxisOrientation.X)
{
_minPx = drawMagrinLocation.X;
_maxPx = drawMagrinLocation.X + drawMarginSize.Width;
_deltaPx = _maxPx - _minPx;
}
else
{
_minPx = drawMagrinLocation.Y;
_maxPx = drawMagrinLocation.Y + drawMarginSize.Height;
_deltaPx = _maxPx - _minPx;
}
_m = 0;
_mInv = 0;
return;
}
if (axis.Orientation == AxisOrientation.X)
{
_minPx = drawMagrinLocation.X;
_maxPx = drawMagrinLocation.X + drawMarginSize.Width;
_deltaPx = _maxPx - _minPx;
_maxVal = axis.IsInverted ? actualBounds.Min : actualBounds.Max;
_minVal = axis.IsInverted ? actualBounds.Max : actualBounds.Min;
if (maxLimit is not null || minLimit is not null)
{
_maxVal = axis.IsInverted ? minLimit ?? _minVal : maxLimit ?? _maxVal;
_minVal = axis.IsInverted ? maxLimit ?? _maxVal : minLimit ?? _minVal;
}
else
{
var visibleMax = axis.IsInverted ? actualVisibleBounds.Min : actualVisibleBounds.Max;
var visibleMin = axis.IsInverted ? actualVisibleBounds.Max : actualVisibleBounds.Min;
if (visibleMax != _maxVal || visibleMin != _minVal)
{
_maxVal = visibleMax;
_minVal = visibleMin;
}
}
_deltaVal = _maxVal - _minVal;
}