Class: Sevgi::Sundries::Grid::Axis::Query

Inherits:

Object

• Object
• Sevgi::Sundries::Grid::Axis::Query

Defined in:

lib/sevgi/sundries/grid.rb

Overview

Memoized grid line query for an axis.

Direct Known Subclasses

Halve, Major, Minor

Instance Method Summary

• #initialize(this, other) ⇒ void constructor

  Creates a query.

• #lines ⇒ Array<Sevgi::Geometry::Line>

  Returns generated grid lines.

• #points ⇒ Array<Array<Sevgi::Geometry::Point>>

  Returns grid line endpoints as points.

• #xys ⇒ Array<Array<Array<Float>>>

  Returns grid line endpoints as coordinate pairs.

Constructor Details

#initialize(this, other) ⇒ void

Creates a query.

Parameters:

• this (Sevgi::Sundries::Grid::Axis) —

  axis receiving generated lines

• other (Sevgi::Sundries::Ruler) —

  perpendicular ruler supplying tick distances

# File 'lib/sevgi/sundries/grid.rb', line 87

def initialize(this, other) = (@this, @other = this, other)

Instance Method Details

#lines ⇒ Array<Sevgi::Geometry::Line>

Returns generated grid lines. The memoized collection is frozen and must be treated as immutable.

Returns:

• (Array<Sevgi::Geometry::Line>) —

  frozen lines

# File 'lib/sevgi/sundries/grid.rb', line 102

def lines = @lines ||= lines!.freeze

#points ⇒ Array<Array<Sevgi::Geometry::Point>>

Returns grid line endpoints as points. The outer and nested collections are frozen and must be treated as immutable.

Returns:

• (Array<Array<Sevgi::Geometry::Point>>) —

  frozen point pairs

# File 'lib/sevgi/sundries/grid.rb', line 97

def points = @points ||= lines.map { it.points(true).freeze }.freeze

#xys ⇒ Array<Array<Array<Float>>>

Returns grid line endpoints as coordinate pairs. The outer and nested collections are frozen and must be treated as immutable.

Returns:

• (Array<Array<Array<Float>>>) —

  frozen coordinate pairs

# File 'lib/sevgi/sundries/grid.rb', line 92

def xys = @xys ||= lines.map { it.points(true).map { |point| point.deconstruct.freeze }.freeze }.freeze