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Contents
# encoding: ascii-8bit
# Copyright 2014 Ball Aerospace & Technologies Corp.
# All Rights Reserved.
#
# This program is free software; you can modify and/or redistribute it
# under the terms of the GNU General Public License
# as published by the Free Software Foundation; version 3 with
# attribution addendums as found in the LICENSE.txt
require 'cosmos/gui/opengl/gl_bounds'
module Cosmos
# Creates an OpenGL scene with associated shapes. It defers to the shapes to
# draw themselves.
class GlScene
# @return [Array<GlShape>] Shapes to draw in the scene
attr_reader :shapes
# @return [GlBounds] Bounds of the scene
attr_accessor :bounds
# @return [Integer] Zoom factor
attr_accessor :zoom
# @return [Quaternion] Orientation of the scene
attr_accessor :orientation
# @return [Array<Float, Float, Float>] Center of the scene
attr_accessor :center
# @return [Symbol] The type of projection matrix to use :PARALLEL or :PERSPECTIVE
attr_accessor :projection
def initialize
@shapes = []
@bounds = GlBounds.new(-5.0, 5.0, -5.0, 5.0, -5.0, 5.0)
@zoom = 1.0
@orientation = Quaternion.new([0.0, 0.0, 0.0, 1.0])
@center = [0.0, 0.0, 0.0]
@projection = :PARALLEL
end
def draw(viewer)
@shapes.each do |shape|
if shape.color[3] > 0.96
shape.draw(viewer)
end
end
@shapes.each do |shape|
if shape.color[3] <= 0.96
shape.draw(viewer)
end
end
end
def hit(viewer)
glPushName(0xffffffff);
@shapes.each_with_index do |shape, index|
glLoadName(index)
shape.hit(viewer)
end
glPopName()
end
def identify(index)
if @shapes[index]
return @shapes[index].identify
end
return nil
end
def each
@shapes.each do |shape|
yield shape
end
end
def append(shape)
@shapes << shape
end
end
end
Version data entries
18 entries across 18 versions & 1 rubygems