Made the draw method of vec2d const so that compiler stops complaining

2023-05-17 13:20:40 +02:00
parent 3c2335235e
commit 399949876f
1 changed files with 1 additions and 1 deletions
--- a/vec2d.h
+++ b/vec2d.h
@ -74,7 +74,7 @@ class vec2d {
        return {-y, x};
    }

-    void draw(cairo_t* cr, vec2d p) {
+    void draw(cairo_t* cr, vec2d p) const {
        double arrow_lenght_ = 10 * vec2d::norm(*this);
        double arrow_degrees_ = .5;