/// <summary>
/// Get the gcode instructions for center drilling using a list of contour elements
/// </summary>
/// <param name="contours">list of contour elements</param>
/// <param name="z">z height lower / raise</param>
/// <param name="rapidFeed">feedrate to use for rapid moves</param>
/// <param name="plungeFeed">feedrate to use for plunge moves (Z)</param>
/// <param name="safeHeight">z height to raise after each contour action</param>
/// <returns>the gcode instructions for center drilling using a list of contour elements</returns>
public static string GetGCodeCenter(IEnumerable <IEnumerable <PointF> > contours, float z, float rapidFeed, float plungeFeed, float safeHeight)
{
var sb = new StringBuilder();
int contourCounter = 0;
// find min and max
var points = GetPoints(contours);
if (points.Count() == 0)
{
return(null);
}
// Assuming these points come from a SVG
// we need to shift the Y pos since
// the SVG origin is upper left, while on
// this GCode setup it is assumed to be lower left.
float minX = points.Min(point => point.X);
//float maxX = points.Max(point => point.X);
//float minY = points.Min(point => point.Y);
float maxY = points.Max(point => point.Y);
// Enumerate each contour in the document
foreach (var contour in contours)
{
contourCounter++;
var center = Transformation.Center(contour);
sb.AppendFormat(CultureInfo.InvariantCulture, "G0 X{0:0.##} Y{1:0.##}\n", (center.X - minX), (maxY - center.Y));
sb.AppendFormat(CultureInfo.InvariantCulture, "G1 Z{0:0.##} F{1:0.##}\n", z, plungeFeed);
sb.AppendFormat(CultureInfo.InvariantCulture, "G0 Z{0:0.##}\n", safeHeight);
}
return(sb.ToString());
}