/// <summary>
/// plot the virtual path in screen
/// </summary>
public async Task <PlotResult> PlotPath(double x, double y, PlotPath path)
{
x = 0;
y = 0;
var points = path.Points.Length <= 2 ? path.Points.ToArray() :
(this.FastPreview ?
PathSimplifier.SimplifyPathsPoints(path.Points, tolerance: PathSimplifier.ScreenFastTolerance).ToArray() :
PathSimplifier.SimplifyPathsPoints(path.Points, tolerance: PathSimplifier.PlotTolerance).ToArray()
);
var zoom = this.ZoomFactor;
for (int i = 0; i < points.Length - 1; i++)
{
canvas.Children.Add(
new Line()
{
Stroke = this.paintBrush,
StrokeThickness = strokeThickness,
X1 = (points[i].X + x) * zoom,
Y1 = (points[i].Y + y) * zoom,
X2 = (points[i + 1].X + x) * zoom,
Y2 = (points[i + 1].Y + y) * zoom,
});
}
if (this.DelayMsPerPath > 0)
{
await Task.Delay(DelayMsPerPath);
}
return(new PlotResult {
Success = true
});
}
public async Task <PlotResult> PlotPath(double x, double y, PlotPath path)
{
var ready = await this.GetReady();
if (!ready.Success)
{
return(ready);
}
bool fast = true; // simplify the path?
var points = fast && path.Points.Length > 2 ? PathSimplifier.SimplifyPathsPoints(path.Points, tolerance: PathSimplifier.PlotTolerance).ToArray() : path.Points;
if (points.Length < 2)
{
return new PlotResult {
Success = false, ErrorMessage = "path contains less than 2 points"
}
}
;
for (int i = 0; i < points.Length; i++)
{
var plotX = x + points[i].X;
var plotY = y - points[i].Y;
if (i == 0)
{
if (actualX.Equals(plotX) && actualY.Equals(plotY))
{
await this.plotterHardware.PenDown();
await this.plotterHardware.PaintSpeed();
}
else
{
await this.plotterHardware.PenUp();
await this.plotterHardware.TravelSpeed();
}
}
if (!await this.plotterHardware.MoveTo(plotX, plotY))
{
// timeout happened, try again!
await Task.Delay(10000); // Wait for the plotter com port to set up
var penWasDown = !this.plotterHardware.PenIsUp;
await this.plotterHardware.PenUp();
await this.plotterHardware.AutoHome();
this.actualX = 0;
this.actualY = 0;
if (await this.plotterHardware.MoveTo(plotX, plotY))
{
if (penWasDown)
{
await this.plotterHardware.PenDown();
}
}
else
{
// timeout happened again 😱
throw new Exception("unable to fix timeout problem!");
}
}
this.actualX = plotX;
this.actualY = plotY;
if (this.plotterHardware.PenIsUp)
{
await this.plotterHardware.PenDown();
}
}
if (!this.plotterHardware.PenIsUp)
{
await this.plotterHardware.PenUp();
}
return(new PlotResult {
Success = true
});
}