class Fox::FXGLLine

OpenGL line object

Attributes

fm [RW]

Starting point for line [FXGLPoint]

to [RW]

End point for line [FXGLPoint]

Public Class Methods

new (*args)

Source

# File lib/fox16/glshapes.rb, line 91
def initialize(*args)
  super()
  if args.length == 0
    @fm = FXGLPoint.new(-0.5, 0.0, 0.0)
    @to = FXGLPoint.new( 0.5, 0.0, 0.0)
  elsif args.length == 1
    @fm = args[0].fm
    @to = args[0].to
  else
    @fm = FXGLPoint.new(args[0], args[1], args[2])
    @to = FXGLPoint.new(args[3], args[4], args[5])
  end
end

Return an initialized FXGLLine instance.

If no arguments are passed to new, the initial starting and ending points for the line are (-0.5, 0.0, 0.0) and (0.5, 0.0, 0.0), respectively. You can specify different initial start and end points by passing in another FXGLLine instance from which to copy the start and end point values, e.g.

aLine = FXGLLine.new(anotherLine)

or by passing in the x, y and z coordinates individually:

aLine = FXGLLine.new(x0, y0, z0, x1, y1, z1)

Calls superclass method Fox::FXGLObject::new

Public Instance Methods

bounds ()

Source

# File lib/fox16/glshapes.rb, line 108
def bounds
  FXRangef.new([@fm.pos[0], @to.pos[0]].min,
              [@fm.pos[0], @to.pos[0]].max,
              [@fm.pos[1], @to.pos[1]].min,
              [@fm.pos[1], @to.pos[1]].max,
              [@fm.pos[2], @to.pos[2]].min,
              [@fm.pos[2], @to.pos[2]].max)
end

Return the bounding box (an FXRangef instance) for this line.

draw (viewer)

Source

# File lib/fox16/glshapes.rb, line 120
def draw(viewer)
  GL.Color3d(1.0, 0.0, 0.0)
  GL.PointSize(HANDLE_SIZE)
  GL.Begin(GL::LINES)
  GL.Vertex3d(*@fm.pos)
  GL.Vertex3d(*@to.pos)
  GL.End()
end

Draw this line into viewer (an FXGLViewer instance).

hit (viewer)

Source

# File lib/fox16/glshapes.rb, line 132
def hit(viewer)
  GL.Begin(GL::LINES)
  GL.Vertex3d(*@fm.pos)
  GL.Vertex3d(*@to.pos)
  GL.End()
end

Perform hit-test for this line in viewer (an FXGLViewer instance).