1 files changed, 0 insertions, 27 deletions
diff --git a/gerberex/utility.py b/gerberex/utility.py
deleted file mode 100644
index 37de5e8..0000000
--- a/gerberex/utility.py
+++ /dev/null
@@ -1,27 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
-# Copyright 2019 Hiroshi Murayama <opiopan@gmail.com>
-
-from math import cos, sin, pi, sqrt
-
-def rotate(x, y, angle, center):
-    x0 = x - center[0]
-    y0 = y - center[1]
-    angle = angle * pi / 180.0
-    return (cos(angle) * x0 - sin(angle) * y0 + center[0],
-            sin(angle) * x0 + cos(angle) * y0 + center[1])
-
-def is_equal_value(a, b, error_range=0):
-    return (a - b) * (a - b) <= error_range * error_range
-
-def is_equal_point(a, b, error_range=0):
-    return is_equal_value(a[0], b[0], error_range) and \
-        is_equal_value(a[1], b[1], error_range)
-
-def normalize_vec2d(vec):
-    length = sqrt(vec[0] * vec[0] + vec[1] * vec[1])
-    return (vec[0] / length, vec[1] / length)
-
-def dot_vec2d(vec1, vec2):
-    return vec1[0] * vec2[0] + vec1[1] * vec2[1]
-\ No newline at end of file