snap lines to nearby points

2022-05-14 16:10:41 -07:00 · 2022-05-14 16:10:41 -07:00 · a995e796ff
commit a995e796ff
parent 7d5a70379f
1 changed files with 3 additions and 1 deletions
--- a/main.lua
+++ b/main.lua
@ -171,8 +171,10 @@ function propagate_to_drawings(x,y, button)
 end

 function insert_point(points, x,y)
+  local px,py = pixels(x),pixels(y)
  for i,point in ipairs(points) do
-    if point.x == x and point.y == y then
+    local cx,cy = pixels(point.x), pixels(point.y)
+    if (cx-px)*(cx-px) + (cy-py)*(cy-py) < 16 then
      return i
    end
  end