//private void renderCategoryLabels()
//{
// if (FocusedSegment == null)
// {
// return;
// }
// var context = new ProviderContext(Data.Count);
// MaterialProvider.Reset(context);
// _categoryLabels.Children.Clear();
// var diameter = _segments.RenderSize.Smallest() * CircleScale;
// var outerLabelRadius = (diameter / 2) * OuterLabelPositionScale;
// var overlayedLabelRadius = (diameter / 2) * .7;
// var targetAngularOffset = FocusedSegment.RequireType<ArcPath>().CalculateAngularOffset();
// foreach (var d in Data)
// {
// var materialSet = MaterialProvider.ProvideNext(context);
// var categoryNameLabel = positionLabel(d, outerLabelRadius, targetAngularOffset, true);
// categoryNameLabel.Content = d.CategoryName;
// categoryNameLabel.BindTextualPrimitive<BarTotalPrimitive>(this);
// categoryNameLabel.Foreground = BarTotalForeground.GetMaterial(materialSet);
// _categoryLabels.Children.Add(categoryNameLabel);
// var valueLabel = positionLabel(d, overlayedLabelRadius, targetAngularOffset);
// valueLabel.Content = d.Value;
// valueLabel.BindTextualPrimitive<ValuePrimitive>(this);
// valueLabel.Foreground = ValueForeground.GetMaterial(materialSet);
// _categoryLabels.Children.Add(valueLabel);
// }
//}
private Label positionLabel(CategoricalDouble d, double radius, double targetAngularOffset,
bool horizontalPositionSkew = false)
{
var categoryLabel = new Label
{
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center,
IsHitTestVisible = false
};
var pretransformedOffset = d.RenderedVisual.RequireType <ArcPath>().PolarOffset;
var arcAngle = d.RenderedVisual.RequireType <ArcPath>().ArcAngle;
var pretransformedLabelAngle = pretransformedOffset + (arcAngle / 2);
var actualLabelAngle = pretransformedLabelAngle - targetAngularOffset;
var horizontalLabelSkew = horizontalPositionSkew
? Math.Cos(CoordinateHelpers.ToRadian(actualLabelAngle)) * HorizontalLabelPositionSkew
: 0;
var labelRadius = radius;
var polarPoint = new PolarPoint(actualLabelAngle, labelRadius);
var labelCoordinate = polarPoint.ToCartesian();
categoryLabel.Margin = new Thickness(labelCoordinate.X + horizontalLabelSkew, -labelCoordinate.Y,
-labelCoordinate.X - horizontalLabelSkew, labelCoordinate.Y);
return(categoryLabel);
}
public void ToCartesianToPolar_ExpectedParameter_OriginalValue()
{
//----------- Arrange -----------------------------
var origin = new PolarPoint(1, 1);
//----------- Act ---------------------------------
var result = origin.ToCartesian().ToPolar();
//----------- Assert-------------------------------
Assert.True(origin.R.Is(result.R, 1e-12) && origin.Θ.Is(result.Θ, 1e-12));
}
public void ToCartesian_LargeAngle_ExpectedBehavior()
{
//----------- Arrange -----------------------------
var right = new PolarPoint(1, 1000 * MathExt.TwoPi);
//----------- Act ---------------------------------
var ihat = right.ToCartesian();
//----------- Assert-------------------------------
Assert.True(ihat.X.Is(1, 1e-12) && ihat.Y.Is(0, 1e-12));
}
private static PathGeometry SelectedGeometry(Size renderSpace)
{
var leftBaseAnchor = new Point(0, 0);
var rightBaseAnchor = leftBaseAnchor.PushHorizontal(renderSpace.Width);
var slopeVerticalPosition = renderSpace.Height / 2;
var rightTopAnchor = rightBaseAnchor.PushVertical(slopeVerticalPosition);
var leftTopAnchor = leftBaseAnchor.PushVertical(slopeVerticalPosition);
var leftTopAnchorControlVector = new PolarPoint(45, 30);
var rightTopAnchorControlVector = new PolarPoint(135, 30);
var leftTopAnchorControlPoint = leftTopAnchor.Add(leftTopAnchorControlVector.ToCartesian());
var rightTopAnchorControlPoint = rightTopAnchor.Add(rightTopAnchorControlVector.ToCartesian());
var topCenterAnchor = new Point(renderSpace.Width / 2, renderSpace.Height);
return(new PathGeometry
{
Figures = new PathFigureCollection
{
new PathFigure
{
StartPoint = leftBaseAnchor.LocalizeInCartesianSpace(renderSpace),
Segments = new PathSegmentCollection
{
new LineSegment {
Point = rightBaseAnchor.LocalizeInCartesianSpace(renderSpace)
},
new LineSegment {
Point = rightTopAnchor.LocalizeInCartesianSpace(renderSpace)
},
new QuadraticBezierSegment
{
Point1 = rightTopAnchorControlPoint.LocalizeInCartesianSpace(renderSpace),
Point2 = topCenterAnchor.LocalizeInCartesianSpace(renderSpace)
},
new QuadraticBezierSegment
{
Point1 = leftTopAnchorControlPoint.LocalizeInCartesianSpace(renderSpace),
Point2 = leftTopAnchor.LocalizeInCartesianSpace(renderSpace)
},
new LineSegment {
Point = leftBaseAnchor.LocalizeInCartesianSpace(renderSpace)
}
}
}
}
});
}
public static Geometry CalculateArcPath(Size size, double radius, double arcWidth, double angle, double offsetAngle)
{
if (radius <= 0 || arcWidth <= 0 || radius - arcWidth < 0)
{
return(Geometry.Empty);
}
var startOuterPolar = new PolarPoint(offsetAngle, radius);
var endOuterPolar = new PolarPoint(offsetAngle + angle, radius);
var startInnerPolar = new PolarPoint(offsetAngle, radius - arcWidth);
var endInnerPolar = new PolarPoint(offsetAngle + angle, radius - arcWidth);
var isLargeArc = angle > 180;
var startOuter = startOuterPolar.ToCartesian().LocalizeInPolarSpace(size);
var endOuter = endOuterPolar.ToCartesian().LocalizeInPolarSpace(size);
var startInner = startInnerPolar.ToCartesian().LocalizeInPolarSpace(size);
var endInner = endInnerPolar.ToCartesian().LocalizeInPolarSpace(size);
return(new PathGeometry
{
Figures = new PathFigureCollection
{
new PathFigure
{
StartPoint = startOuter,
Segments = new PathSegmentCollection
{
new ArcSegment
{
Size = new Size(radius, radius),
Point = endOuter,
IsLargeArc = isLargeArc
},
new LineSegment
{
Point = endInner
},
new ArcSegment
{
Size = new Size(radius - arcWidth, radius - arcWidth),
Point = startInner,
SweepDirection = SweepDirection.Clockwise,
IsLargeArc = isLargeArc
}
}
}
}
});
}
public CustomPath CalculateActiveArcPath(Point center, double radius, double arcWidth, double angle)
{
var startOuterPolar = new PolarPoint(90, radius);
var endOuterPolar = new PolarPoint(90 + angle, radius);
var startInnerPolar = new PolarPoint(90, radius - arcWidth);
var endInnerPolar = new PolarPoint(90 + angle, radius - arcWidth);
var space = new Size(PART_main.RenderSize.Width, PART_main.RenderSize.Height * 2);
return(new CustomPath(null)
{
Data = new PathGeometry
{
Figures = new PathFigureCollection
{
new PathFigure
{
StartPoint = startOuterPolar.ToCartesian().LocalizeInPolarSpace(space),
Segments = new PathSegmentCollection
{
new ArcSegment
{
Size = new Size(radius, radius),
Point = endOuterPolar.ToCartesian().LocalizeInPolarSpace(space),
IsLargeArc = false
},
new LineSegment
{
Point = endInnerPolar.ToCartesian().LocalizeInPolarSpace(space)
},
new ArcSegment
{
Size = new Size(radius - arcWidth, radius - arcWidth),
Point = startInnerPolar.ToCartesian().LocalizeInPolarSpace(space),
SweepDirection = SweepDirection.Clockwise,
IsLargeArc = false
}
}
}
}
}
});
}
public void ToCartesian_FourCorners_UnitVectors()
{
//----------- Arrange -----------------------------
var right = new PolarPoint(1, 0);
var up = new PolarPoint(1, Math.PI / 2d);
var left = new PolarPoint(1, Math.PI);
var down = new PolarPoint(1, 3 * Math.PI / 2d);
//----------- Act ---------------------------------
var ihat = right.ToCartesian();
var jhat = up.ToCartesian();
var minusihat = left.ToCartesian();
var minusjhat = down.ToCartesian();
//----------- Assert-------------------------------
Assert.True(ihat.X.Is(1, 1e-12) && ihat.Y.Is(0, 1e-12));
Assert.True(jhat.X.Is(0, 1e-12) && jhat.Y.Is(1, 1e-12));
Assert.True(minusihat.X.Is(-1, 1e-12) && minusihat.Y.Is(0, 1e-12));
Assert.True(minusjhat.X.Is(0, 1e-12) && minusjhat.Y.Is(-1, 1e-12));
}
public override CustomPath CalculatePath()
{
var startOuterPolar = new PolarPoint(PolarOffset, outerRadius);
var endOuterPolar = new PolarPoint(PolarOffset + ArcAngle, outerRadius);
var startInnerPolar = new PolarPoint(PolarOffset, outerRadius - RingWidth);
var endInnerPolar = new PolarPoint(PolarOffset + ArcAngle, outerRadius - RingWidth);
return(new CustomPath(this)
{
Data = new PathGeometry
{
Figures = new PathFigureCollection
{
new PathFigure
{
StartPoint = startOuterPolar.ToCartesian().LocalizeInPolarSpace(RenderSize),
Segments = new PathSegmentCollection
{
new ArcSegment
{
Size = outerSize,
Point = endOuterPolar.ToCartesian().LocalizeInPolarSpace(RenderSize),
IsLargeArc = ArcAngle > 180
},
new LineSegment
{
Point = endInnerPolar.ToCartesian().LocalizeInPolarSpace(RenderSize)
},
new ArcSegment
{
Size = innerSize,
Point = startInnerPolar.ToCartesian().LocalizeInPolarSpace(RenderSize),
SweepDirection = SweepDirection.Clockwise,
IsLargeArc = ArcAngle > 180
}
}
}
}
}
});
}
