From 4619398b9e06471fd756d2f27e5db9dad565e29d Mon Sep 17 00:00:00 2001
From: faiface <faiface@ksp.sk>
Date: Thu, 23 Mar 2017 19:15:06 +0100
Subject: [PATCH] fix 0 vector len + fix imdraw polyline
---
geometry.go | 3 +++
imdraw/imdraw.go | 12 ------------
2 files changed, 3 insertions(+), 12 deletions(-)
diff --git a/geometry.go b/geometry.go
index 12a324f..af8b24e 100644
--- a/geometry.go
+++ b/geometry.go
@@ -85,6 +85,9 @@ func (u Vec) Angle() float64 {
// Unit returns a vector of length 1 facing the direction of u (has the same angle).
func (u Vec) Unit() Vec {
+ if u == 0 {
+ return 1
+ }
return u / V(u.Len(), 0)
}
diff --git a/imdraw/imdraw.go b/imdraw/imdraw.go
index fbef4e9..3a69537 100644
--- a/imdraw/imdraw.go
+++ b/imdraw/imdraw.go
@@ -433,18 +433,6 @@ func (imd *IMDraw) outlineEllipseArc(radius pixel.Vec, low, high, thickness floa
func (imd *IMDraw) polyline(thickness float64, closed bool) {
points := imd.getAndClearPoints()
- // filter identical adjacent points
- filtered := points[:0]
- for i := 0; i < len(points); i++ {
- if closed || i+1 < len(points) {
- j := (i + 1) % len(points)
- if points[i].pos != points[j].pos {
- filtered = append(filtered, points[i])
- }
- }
- }
- points = filtered
-
if len(points) < 2 {
return
}
--
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