public void Render(SKCanvas canvas, SKRect plotRect)
{
// update plot-level layout with the latest plot dimensions
layout.Update(plotRect);
if (!axes.x.isValid || !axes.y.isValid)
{
AutoAxis();
}
axes.SetDataRect(layout.dataRect);
axes2.SetDataRect(layout.dataRect);
// draw the graphics
yTicks.Generate(axes.y.low, axes.y.high, layout.dataRect);
y2Ticks.Generate(axes2.y.low, axes2.y.high, layout.dataRect);
xTicks.Generate(axes.x.low, axes.x.high, layout.dataRect);
if (yTicks.biggestTickLabelSize.Width > layout.yScaleWidth)
{
Debug.WriteLine("increasing Y scale width to prevent overlapping with label Y label");
layout.yScaleWidth = yTicks.biggestTickLabelSize.Width;
layout.Update(plotRect);
}
var fillPaint = new SKPaint();
fillPaint.Color = SKColor.Parse("#FFFFFF");
//fillPaint.Color = Tools.RandomColor(); // useful for assessing when plots are redrawn
canvas.DrawRect(layout.dataRect, fillPaint);
yTicks.Render(canvas, axes);
y2Ticks.Render(canvas, axes2);
xTicks.Render(canvas, axes);
canvas.Save();
canvas.ClipRect(axes.GetDataRect());
foreach (var primaryPlottable in GetPlottableList(false))
{
primaryPlottable.Render(canvas, axes);
}
foreach (var secondaryPlottable in GetPlottableList(true))
{
secondaryPlottable.Render(canvas, axes2);
}
canvas.Restore();
//RenderLayoutDebug(canvas);
RenderLabels(canvas);
}
/// <summary>
/// Adjust the ticks to fit the current layout
/// </summary>
private void UpdateTicks()
{
axes.SetDataRect(layout.dataRect);
axes2.SetDataRect(layout.dataRect);
yTicks.Generate(axes.y.low, axes.y.high, layout.dataRect);
y2Ticks.Generate(axes2.y.low, axes2.y.high, layout.dataRect);
xTicks.Generate(axes.x.low, axes.x.high, layout.dataRect);
if (yTicks.biggestTickLabelSize.Width > layout.yScaleWidth)
{
layout.yScaleWidth = yTicks.biggestTickLabelSize.Width;
}
}
/// <summary>
/// Return a new Axes after mouse panning and zooming
/// </summary>
private PlotSettings.Axes AxesAfterMouse(RectangleF?renderArea = null)
{
if (renderArea is null)
{
renderArea = mouse.lastRenderArea;
}
else
{
mouse.lastRenderArea = (RectangleF)renderArea;
}
var axesAfterMouse = new PlotSettings.Axes(axes);
if (mouse.leftButtonIsDown)
{
axesAfterMouse.PanPixels(mouse.leftDelta);
}
if (mouse.rightButtonIsDown)
{
axesAfterMouse.ZoomPixels(mouse.rightDelta);
}
axesAfterMouse.SetDataRect((RectangleF)renderArea);
return(axesAfterMouse);
}