Module: Skrift::Geometry

Included in:
Font, Outline
Defined in:
lib/skrift.rb

Overview

Geometry helpers shared by Font (compound glyphs) and Outline.

Class Method Summary collapse

Class Method Details

.midpoint(a, b) ⇒ Object 



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# File 'lib/skrift.rb', line 13

def midpoint(a, b) = (a + b) * 0.5

.transform_points(trf, pts) ⇒ Object

Applies an affine linear transformation matrix to a set of points.



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# File 'lib/skrift.rb', line 16

def transform_points(trf, pts)
  pts.each do |pt|
    x, y = pt[0], pt[1]
    pt[0] = trf[0][0] * x + trf[0][1] * y + trf[0][2]
    pt[1] = trf[1][0] * x + trf[1][1] * y + trf[1][2]
  end
end