Class: Matrix

Inherits:
Object
  • Object
show all
Defined in:
lib/bvh/matrix.rb

Overview

This adds a few methods to the default Ruby Matrix implementation.

Instance Method Summary collapse

Instance Method Details

#[]=(i, j, x) ⇒ Object

Sets row “i”, column “j”, to the value “x”.



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# File 'lib/bvh/matrix.rb', line 6

def []=(i,j,x)
  @rows[i][j] = x
end

#load_identity! ⇒ Object

Turns this matrix into an identity matrix, erasing all previous values.



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# File 'lib/bvh/matrix.rb', line 11

def load_identity!
  row_size.times do |r|
    column_size.times do |c|
      self[r, c] = (r == c ? 1 : 0)
    end
  end
  self
end