add support for one point lines in imdraw

2017-03-23 19:38:53 +01:00 · 2017-03-23 19:38:53 +01:00 · fb8424cd32
parent 4bebc7e6e4
commit fb8424cd32
1 changed files with 5 additions and 1 deletions
--- a/imdraw/imdraw.go
+++ b/imdraw/imdraw.go
@ -433,9 +433,13 @@ func (imd *IMDraw) outlineEllipseArc(radius pixel.Vec, low, high, thickness floa
 func (imd *IMDraw) polyline(thickness float64, closed bool) {
 	points := imd.getAndClearPoints()

-	if len(points) < 2 {
+	if len(points) == 0 {
 		return
 	}
+	if len(points) == 1 {
+		// one point special case
+		points = append(points, points[0])
+	}

 	// first point
 	j, i := 0, 1