public virtual Point Transform(double x, double y, Axis yAxis)
{
Debug.Assert(yAxis != null);
if (IsPolar)
{
double r = (x - Offset) * Scale;
double th = yAxis != null ? (y - yAxis.Offset) * yAxis.Scale : double.NaN;
return(new Point(MidPoint.X + r * Math.Cos(th), MidPoint.Y + r * Math.Sin(th)));
}
if (yAxis == null)
{
return(new Point());
}
return(new Point(TransformX(x), yAxis != null ? yAxis.TransformX(y) : double.NaN));
}
private void RenderVerticalAxis(Axis axis, Axis perpendicularAxis)
{
double x = Plot.Bounds.Left;
switch (axis.Position)
{
case AxisPosition.Left:
x = Plot.Bounds.Left;
break;
case AxisPosition.Right:
x = Plot.Bounds.Right;
break;
}
if (axis.PositionAtZeroCrossing)
{
x = perpendicularAxis.TransformX(0);
}
double x0, x1;
if (axis.ShowMinorTicks)
{
GetHorizontalTickPositions(axis, axis.TickStyle, axis.MinorTickSize, out x0, out x1);
foreach (double yValue in minorTickValues)
{
if (yValue < axis.ActualMinimum || yValue > axis.ActualMaximum)
{
continue;
}
if (majorTickValues.Contains(yValue))
{
continue;
}
double y = axis.TransformX(yValue);
if (minorPen != null)
{
RenderLine(Plot.Bounds.Left, y, Plot.Bounds.Right, y, minorPen);
}
RenderLine(x + x0, y, x + x1, y, minorTickPen);
}
}
GetHorizontalTickPositions(axis, axis.TickStyle, axis.MajorTickSize, out x0, out x1);
double maxw = 0;
bool isleft = axis.Position == AxisPosition.Left;
foreach (double yValue in majorTickValues)
{
if (yValue < axis.ActualMinimum || yValue > axis.ActualMaximum)
{
continue;
}
double y = axis.TransformX(yValue);
if (majorPen != null)
{
RenderLine(Plot.Bounds.Left, y, Plot.Bounds.Right, y, majorPen);
}
RenderLine(x + x0, y, x + x1, y, majorTickPen);
if (yValue == 0 && axis.PositionAtZeroCrossing)
{
continue;
}
var pt = new ScreenPoint(isleft ? x + x1 - TICK_DIST : x + x1 + TICK_DIST, y);
string text = axis.FormatValue(yValue);
double w = rc.MeasureText(text, axis.FontFamily, axis.FontSize, axis.FontWeight).Height;
rc.DrawText(pt, text, Plot.TextColor,
axis.FontFamily, axis.FontSize, axis.FontWeight,
axis.Angle,
isleft ? HorizontalTextAlign.Right : HorizontalTextAlign.Left, VerticalTextAlign.Middle);
maxw = Math.Max(maxw, w);
}
if (axis.PositionAtZeroCrossing)
{
double y = axis.TransformX(0);
RenderLine(Plot.Bounds.Left, y, Plot.Bounds.Right, y, zeroPen);
}
if (axis.ExtraGridlines != null)
{
foreach (double y in axis.ExtraGridlines)
{
if (!IsWithin(y, axis.ActualMinimum, axis.ActualMaximum))
{
continue;
}
double sy = axis.TransformX(y);
RenderLine(Plot.Bounds.Left, sy, Plot.Bounds.Right, sy, extraPen);
}
}
RenderLine(x, Plot.Bounds.Top, x, Plot.Bounds.Bottom, majorPen);
double ymid = axis.TransformX((axis.ActualMinimum + axis.ActualMaximum) / 2);
HorizontalTextAlign halign = HorizontalTextAlign.Center;
VerticalTextAlign valign = VerticalTextAlign.Top;
if (axis.PositionAtZeroCrossing)
{
ymid = perpendicularAxis.TransformX(perpendicularAxis.ActualMaximum);
// valign = axis.IsReversed ? VerticalTextAlign.Top : VerticalTextAlign.Bottom;
}
if (isleft)
{
x = AXIS_LEGEND_DIST;
}
else
{
x = rc.Width - AXIS_LEGEND_DIST;
valign = VerticalTextAlign.Bottom;
}
rc.DrawText(new ScreenPoint(x, ymid), axis.Title, Plot.TextColor,
axis.FontFamily, axis.FontSize, axis.FontWeight,
-90, halign, valign);
}
private void RenderHorizontalAxis(Axis axis, Axis perpendicularAxis)
{
double y = Plot.Bounds.Bottom;
switch (axis.Position)
{
case AxisPosition.Top:
y = Plot.Bounds.Top;
break;
case AxisPosition.Bottom:
y = Plot.Bounds.Bottom;
break;
}
if (axis.PositionAtZeroCrossing)
{
y = perpendicularAxis.TransformX(0);
}
double y0, y1;
if (axis.ShowMinorTicks)
{
GetVerticalTickPositions(axis, axis.TickStyle, axis.MinorTickSize, out y0, out y1);
foreach (double xValue in minorTickValues)
{
if (xValue < axis.ActualMinimum || xValue > axis.ActualMaximum)
{
continue;
}
if (majorTickValues.Contains(xValue))
{
continue;
}
double x = axis.TransformX(xValue);
if (minorPen != null)
{
RenderLine(x, Plot.Bounds.Top, x, Plot.Bounds.Bottom, minorPen);
}
RenderLine(x, y + y0, x, y + y1, minorTickPen);
}
}
GetVerticalTickPositions(axis, axis.TickStyle, axis.MajorTickSize, out y0, out y1);
double maxh = 0;
bool istop = axis.Position == AxisPosition.Top;
foreach (double xValue in majorTickValues)
{
if (xValue < axis.ActualMinimum || xValue > axis.ActualMaximum)
{
continue;
}
double x = axis.TransformX(xValue);
if (majorPen != null)
{
RenderLine(x, Plot.Bounds.Top, x, Plot.Bounds.Bottom, majorPen);
}
RenderLine(x, y + y0, x, y + y1, majorTickPen);
if (xValue == 0 && axis.PositionAtZeroCrossing)
{
continue;
}
var pt = new ScreenPoint(x, istop ? y + y1 - TICK_DIST : y + y1 + TICK_DIST);
string text = axis.FormatValue(xValue);
double h = rc.MeasureText(text, axis.FontFamily, axis.FontSize, axis.FontWeight).Height;
rc.DrawText(pt, text, Plot.TextColor,
axis.FontFamily, axis.FontSize, axis.FontWeight,
axis.Angle,
HorizontalTextAlign.Center, istop ? VerticalTextAlign.Bottom : VerticalTextAlign.Top);
maxh = Math.Max(maxh, h);
}
if (axis.PositionAtZeroCrossing)
{
double x = axis.TransformX(0);
RenderLine(x, Plot.Bounds.Top, x, Plot.Bounds.Bottom, zeroPen);
}
if (axis.ExtraGridlines != null)
{
foreach (double x in axis.ExtraGridlines)
{
if (!IsWithin(x, axis.ActualMinimum, axis.ActualMaximum))
{
continue;
}
double sx = axis.TransformX(x);
RenderLine(sx, Plot.Bounds.Top, sx, Plot.Bounds.Bottom, extraPen);
}
}
// The horizontal axis line
RenderLine(Plot.Bounds.Left, y, Plot.Bounds.Right, y, majorPen);
// The horizontal axis legend (centered horizontally)
double legendX = axis.TransformX((axis.ActualMinimum + axis.ActualMaximum) / 2);
HorizontalTextAlign halign = HorizontalTextAlign.Center;
VerticalTextAlign valign = VerticalTextAlign.Bottom;
if (axis.PositionAtZeroCrossing)
{
legendX = perpendicularAxis.TransformX(perpendicularAxis.ActualMaximum);
}
double legendY = rc.Height - AXIS_LEGEND_DIST;
if (istop)
{
legendY = AXIS_LEGEND_DIST;
valign = VerticalTextAlign.Top;
}
rc.DrawText(new ScreenPoint(legendX, legendY),
axis.Title, Plot.TextColor,
axis.FontFamily, axis.FontSize, axis.FontWeight, 0, halign, valign);
}
private void RenderVerticalAxis(Axis axis, Axis perpendicularAxis)
{
double x = Plot.Bounds.Left;
switch (axis.Position)
{
case AxisPosition.Left:
x = Plot.Bounds.Left;
break;
case AxisPosition.Right:
x = Plot.Bounds.Right;
break;
}
if (axis.PositionAtZeroCrossing)
x = perpendicularAxis.TransformX(0);
double x0, x1;
if (axis.ShowMinorTicks)
{
GetHorizontalTickPositions(axis, axis.TickStyle, axis.MinorTickSize, out x0, out x1);
foreach (double yValue in minorTickValues)
{
if (yValue < axis.ActualMinimum || yValue > axis.ActualMaximum)
{
continue;
}
if (majorTickValues.Contains(yValue))
{
continue;
}
double y = axis.TransformX(yValue);
if (minorPen != null)
{
RenderLine(Plot.Bounds.Left, y, Plot.Bounds.Right, y, minorPen);
}
RenderLine(x + x0, y, x + x1, y, minorTickPen);
}
}
GetHorizontalTickPositions(axis, axis.TickStyle, axis.MajorTickSize, out x0, out x1);
double maxw = 0;
bool isleft = axis.Position == AxisPosition.Left;
foreach (double yValue in majorTickValues)
{
if (yValue < axis.ActualMinimum || yValue > axis.ActualMaximum)
continue;
double y = axis.TransformX(yValue);
if (majorPen != null)
{
RenderLine(Plot.Bounds.Left, y, Plot.Bounds.Right, y, majorPen);
}
RenderLine(x + x0, y, x + x1, y, majorTickPen);
if (yValue == 0 && axis.PositionAtZeroCrossing)
continue;
var pt = new ScreenPoint(isleft ? x + x1 - TICK_DIST : x + x1 + TICK_DIST, y);
string text = axis.FormatValue(yValue);
double w = rc.MeasureText(text, axis.FontFamily, axis.FontSize, axis.FontWeight).Height;
rc.DrawText(pt, text, Plot.TextColor,
axis.FontFamily, axis.FontSize, axis.FontWeight,
axis.Angle,
isleft ? HorizontalTextAlign.Right : HorizontalTextAlign.Left, VerticalTextAlign.Middle);
maxw = Math.Max(maxw, w);
}
if (axis.PositionAtZeroCrossing)
{
double y = axis.TransformX(0);
RenderLine(Plot.Bounds.Left, y, Plot.Bounds.Right, y, zeroPen);
}
if (axis.ExtraGridlines != null)
foreach (double y in axis.ExtraGridlines)
{
if (!IsWithin(y, axis.ActualMinimum, axis.ActualMaximum))
continue;
double sy = axis.TransformX(y);
RenderLine(Plot.Bounds.Left, sy, Plot.Bounds.Right, sy, extraPen);
}
RenderLine(x, Plot.Bounds.Top, x, Plot.Bounds.Bottom, majorPen);
double ymid = axis.TransformX((axis.ActualMinimum + axis.ActualMaximum)/2);
HorizontalTextAlign halign = HorizontalTextAlign.Center;
VerticalTextAlign valign = VerticalTextAlign.Top;
if (axis.PositionAtZeroCrossing)
{
ymid = perpendicularAxis.TransformX(perpendicularAxis.ActualMaximum);
// valign = axis.IsReversed ? VerticalTextAlign.Top : VerticalTextAlign.Bottom;
}
if (isleft)
{
x = AXIS_LEGEND_DIST;
}
else
{
x = rc.Width - AXIS_LEGEND_DIST;
valign = VerticalTextAlign.Bottom;
}
rc.DrawText(new ScreenPoint(x, ymid), axis.Title, Plot.TextColor,
axis.FontFamily, axis.FontSize, axis.FontWeight,
-90, halign, valign);
}
private void RenderHorizontalAxis(Axis axis, Axis perpendicularAxis)
{
double y = Plot.Bounds.Bottom;
switch (axis.Position)
{
case AxisPosition.Top:
y = Plot.Bounds.Top;
break;
case AxisPosition.Bottom:
y = Plot.Bounds.Bottom;
break;
}
if (axis.PositionAtZeroCrossing)
{
y = perpendicularAxis.TransformX(0);
}
double y0, y1;
if (axis.ShowMinorTicks)
{
GetVerticalTickPositions(axis, axis.TickStyle, axis.MinorTickSize, out y0, out y1);
foreach (double xValue in minorTickValues)
{
if (xValue < axis.ActualMinimum || xValue > axis.ActualMaximum)
{
continue;
}
if (majorTickValues.Contains(xValue))
{
continue;
}
double x = axis.TransformX(xValue);
if (minorPen != null)
{
RenderLine(x, Plot.Bounds.Top, x, Plot.Bounds.Bottom, minorPen);
}
RenderLine(x, y + y0, x, y + y1, minorTickPen);
}
}
GetVerticalTickPositions(axis, axis.TickStyle, axis.MajorTickSize, out y0, out y1);
double maxh = 0;
bool istop = axis.Position == AxisPosition.Top;
foreach (double xValue in majorTickValues)
{
if (xValue < axis.ActualMinimum || xValue > axis.ActualMaximum)
{
continue;
}
double x = axis.TransformX(xValue);
if (majorPen != null)
{
RenderLine(x, Plot.Bounds.Top, x, Plot.Bounds.Bottom, majorPen);
}
RenderLine(x, y + y0, x, y + y1, majorTickPen);
if (xValue == 0 && axis.PositionAtZeroCrossing)
continue;
var pt = new ScreenPoint(x, istop ? y + y1 - TICK_DIST : y + y1 + TICK_DIST);
string text = axis.FormatValue(xValue);
double h = rc.MeasureText(text, axis.FontFamily, axis.FontSize, axis.FontWeight).Height;
rc.DrawText(pt, text, Plot.TextColor,
axis.FontFamily, axis.FontSize, axis.FontWeight,
axis.Angle,
HorizontalTextAlign.Center, istop ? VerticalTextAlign.Bottom : VerticalTextAlign.Top);
maxh = Math.Max(maxh, h);
}
if (axis.PositionAtZeroCrossing)
{
double x = axis.TransformX(0);
RenderLine(x, Plot.Bounds.Top, x, Plot.Bounds.Bottom, zeroPen);
}
if (axis.ExtraGridlines != null)
{
foreach (double x in axis.ExtraGridlines)
{
if (!IsWithin(x, axis.ActualMinimum, axis.ActualMaximum))
continue;
double sx = axis.TransformX(x);
RenderLine(sx, Plot.Bounds.Top, sx, Plot.Bounds.Bottom, extraPen);
}
}
// The horizontal axis line
RenderLine(Plot.Bounds.Left, y, Plot.Bounds.Right, y, majorPen);
// The horizontal axis legend (centered horizontally)
double legendX = axis.TransformX((axis.ActualMinimum + axis.ActualMaximum)/2);
HorizontalTextAlign halign = HorizontalTextAlign.Center;
VerticalTextAlign valign = VerticalTextAlign.Bottom;
if (axis.PositionAtZeroCrossing)
{
legendX = perpendicularAxis.TransformX(perpendicularAxis.ActualMaximum);
}
double legendY = rc.Height - AXIS_LEGEND_DIST;
if (istop)
{
legendY = AXIS_LEGEND_DIST;
valign = VerticalTextAlign.Top;
}
rc.DrawText(new ScreenPoint(legendX, legendY),
axis.Title, Plot.TextColor,
axis.FontFamily, axis.FontSize, axis.FontWeight, 0, halign, valign);
}
public virtual Point Transform(double x, double y, Axis yAxis)
{
Debug.Assert(yAxis != null);
if (IsPolar)
{
double r = (x - Offset) * Scale;
double th = yAxis != null ? (y - yAxis.Offset) * yAxis.Scale : double.NaN;
return new Point(MidPoint.X + r * Math.Cos(th), MidPoint.Y + r * Math.Sin(th));
}
if (yAxis == null)
return new Point();
return new Point(TransformX(x), yAxis != null ? yAxis.TransformX(y) : double.NaN);
}