Module: Dieses::Geometry

Defined in:
lib/dieses/geometry/line.rb,
lib/dieses/geometry/rect.rb,
lib/dieses/geometry/error.rb,
lib/dieses/geometry/point.rb,
lib/dieses/geometry/element.rb,
lib/dieses/geometry/equation.rb,
lib/dieses/geometry/equation/slant.rb,
lib/dieses/geometry/equation/steep.rb

Defined Under Namespace

Modules: Equation Classes: Element, Line, Point, Rect

Constant Summary collapse

Error = 
Class.new Error

Class Method Summary collapse

Class Method Details

.bounding_box_of(*elements) ⇒ Object 



56
57
58
59
60
61
62
63
 
# File 'lib/dieses/geometry/element.rb', line 56

def bounding_box_of(*elements)
  bboxes = elements.map(&:bbox)

  minimum = bboxes.map(&:minimum).min
  maximum = bboxes.map(&:maximum).max

  Element::BoundingBox.new minimum, maximum
end

.centered(elements, rect) ⇒ Object 



41
42
43
44
45
46
47
48
 
# File 'lib/dieses/geometry/element.rb', line 41

def centered(elements, rect)
  bbox = bounding_box_of(*elements)

  x = (rect.width  - bbox.maximum.x + bbox.minimum.x) / 2
  y = (rect.height - bbox.maximum.y + bbox.minimum.y) / 2

  elements.map { |element| element.translate(x: x, y: y).attr(**element.attributes.dup) }
end

.to_svg(elements, rect = Undefined, prefix: EMPTY_STRING) ⇒ Object 



50
51
52
53
54
 
# File 'lib/dieses/geometry/element.rb', line 50

def to_svg(elements, rect = Undefined, prefix: EMPTY_STRING)
  (Undefined.equal?(rect) ? elements : centered(elements, rect)).map do |element|
    "#{prefix}#{element.to_svg}"
  end.join.chomp
end