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Set max length for arrow heads

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Karma Riuk 2023-06-13 13:49:48 +02:00
parent 89e250dcba
commit 79ac43f05c
1 changed files with 5 additions and 4 deletions
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9
vec2d.h
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@ -84,10 +84,11 @@ class vec2d {
vec2d end = p + (*this) * 30;
double x1 = end.x + arrow_lenght_ * cos(angle - arrow_degrees_);
double y1 = end.y + arrow_lenght_ * sin(angle - arrow_degrees_);
double x2 = end.x + arrow_lenght_ * cos(angle + arrow_degrees_);
double y2 = end.y + arrow_lenght_ * sin(angle + arrow_degrees_);
double head_length = fmin(10, arrow_lenght_);
double x1 = end.x + head_length * cos(angle - arrow_degrees_);
double y1 = end.y + head_length * sin(angle - arrow_degrees_);
double x2 = end.x + head_length * cos(angle + arrow_degrees_);
double y2 = end.y + head_length * sin(angle + arrow_degrees_);
cairo_set_source_rgb(cr, 255, 0, 0);