/// <summary>
/// create contour(closed, open) from input flatten XYs,and put into output vxs
/// </summary>
/// <param name="flattenXYs"></param>
/// <param name="vxs"></param>
/// <param name="closedContour"></param>
/// <returns></returns>
public static VxsContext1 Borrow(float[] flattenXYs, out VertexStore vxs, bool closedContour = true)
{
VxsContext1 context1 = Borrow(out vxs);
using (VectorToolBox.Borrow(vxs, out PathWriter pw))
{
if (closedContour)
{
pw.WritePolygon(flattenXYs);
}
else
{
pw.WritePolylines(flattenXYs);
}
}
return(context1);
}
public static VxsContext1 Borrow(double[] flattenXYs, out VertexStore vxs, bool closedContour = true)
{
VxsContext1 context1 = Borrow(out vxs);
using (VectorToolBox.Borrow(vxs, out PathWriter pw))
{
pw.MoveTo(flattenXYs[0], flattenXYs[1]);
for (int i = 2; i < flattenXYs.Length;)
{
pw.LineTo(flattenXYs[i], flattenXYs[i + 1]);
i += 2;
}
if (closedContour)
{
pw.CloseFigure();
}
}
return(context1);
}