Class: Cosmos::GlShape

Inherits:
Object show all
Defined in:
lib/cosmos/gui/opengl/gl_shape.rb

Direct Known Subclasses

StlShape, TextureMappedSphere

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(x, y, z) ⇒ GlShape

Constructor for the StlShape class



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# File 'lib/cosmos/gui/opengl/gl_shape.rb', line 29

def initialize(x, y, z)
  @color = [0.5, 0.5, 0.5, 1.0]
  @base_color = [0.5, 0.5, 0.5, 1.0]
  @position = [x, y, z]
  @rotation_x = nil
  @rotation_y = nil
  @rotation_z = nil
  @viewer = nil
  @front_material = GlMaterial.new
  @back_material = nil
  @tipText = nil
  @dragable = true
end

Instance Attribute Details

#base_color ⇒ Object

Returns the value of attribute base_color.



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# File 'lib/cosmos/gui/opengl/gl_shape.rb', line 17

def base_color
  @base_color
end

#click_handler ⇒ Object

Returns the value of attribute click_handler.



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# File 'lib/cosmos/gui/opengl/gl_shape.rb', line 18

def click_handler
  @click_handler
end

#color ⇒ Object

Returns the value of attribute color.



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# File 'lib/cosmos/gui/opengl/gl_shape.rb', line 20

def color
  @color
end

#doubleclick_handler ⇒ Object

Returns the value of attribute doubleclick_handler.



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# File 'lib/cosmos/gui/opengl/gl_shape.rb', line 19

def doubleclick_handler
  @doubleclick_handler
end

#dragable ⇒ Object

Returns the value of attribute dragable.



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# File 'lib/cosmos/gui/opengl/gl_shape.rb', line 26

def dragable
  @dragable
end

#position ⇒ Object

Returns the value of attribute position.



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# File 'lib/cosmos/gui/opengl/gl_shape.rb', line 21

def position
  @position
end

#rotation_x ⇒ Object

Returns the value of attribute rotation_x.



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# File 'lib/cosmos/gui/opengl/gl_shape.rb', line 22

def rotation_x
  @rotation_x
end

#rotation_y ⇒ Object

Returns the value of attribute rotation_y.



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# File 'lib/cosmos/gui/opengl/gl_shape.rb', line 23

def rotation_y
  @rotation_y
end

#rotation_z ⇒ Object

Returns the value of attribute rotation_z.



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# File 'lib/cosmos/gui/opengl/gl_shape.rb', line 24

def rotation_z
  @rotation_z
end

#tipText ⇒ Object

Returns the value of attribute tipText.



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# File 'lib/cosmos/gui/opengl/gl_shape.rb', line 25

def tipText
  @tipText
end

Instance Method Details

#drag(viewer, fx, fy, tx, ty) ⇒ Object 



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# File 'lib/cosmos/gui/opengl/gl_shape.rb', line 98

def drag(viewer, fx, fy, tx, ty)
  if @dragable
    zz = viewer.worldToEyeZ(@position)
    wf = viewer.eyeToWorld(viewer.screenToEye(fx, fy, zz))
    wt = viewer.eyeToWorld(viewer.screenToEye(tx, ty, zz))
    wt_minus_wf = [wt[0] - wf[0], wt[1] - wf[1], wt[2] - wf[2]]
    @position = [@position[0] + wt_minus_wf[0], @position[1] + wt_minus_wf[1], @position[2] + wt_minus_wf[2]]
    return true
  else
    return false
  end
end

#draw(viewer) ⇒ Object 



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# File 'lib/cosmos/gui/opengl/gl_shape.rb', line 43

def draw(viewer)
  GL.PushAttrib(GL::CURRENT_BIT | GL::LIGHTING_BIT | GL::POINT_BIT | GL::LINE_BIT)
  GL.PushMatrix

  # Object position
  GL::Translatef(@position[0], @position[1], @position[2])

  # Shading
  GL.Enable(GL::LIGHTING)
  GL.Enable(GL::AUTO_NORMAL)
  GL.ShadeModel(GL::SMOOTH)

  # Material
  if @back_material
    GL.Material(GL::FRONT, GL::AMBIENT, @front_material.ambient)
    GL.Material(GL::FRONT, GL::DIFFUSE, @front_material.diffuse)
    GL.Material(GL::FRONT, GL::SPECULAR, @front_material.specular)
    GL.Material(GL::FRONT, GL::EMISSION, @front_material.emission)
    GL.Materialf(GL::FRONT, GL::SHININESS, @front_material.shininess)
    GL.Material(GL::BACK, GL::AMBIENT, @back_material.ambient)
    GL.Material(GL::BACK, GL::DIFFUSE, @back_material.diffuse)
    GL.Material(GL::BACK, GL::SPECULAR, @back_material.specular)
    GL.Material(GL::BACK, GL::EMISSION, @back_material.emission)
    GL.Materialf(GL::BACK, GL::SHININESS, @back_material.shininess)
  else
    GL.Material(GL::FRONT_AND_BACK, GL::AMBIENT, @front_material.ambient)
    GL.Material(GL::FRONT_AND_BACK, GL::DIFFUSE, @front_material.diffuse)
    GL.Material(GL::FRONT_AND_BACK, GL::SPECULAR, @front_material.specular)
    GL.Material(GL::FRONT_AND_BACK, GL::EMISSION, @front_material.emission)
    GL.Materialf(GL::FRONT_AND_BACK, GL::SHININESS, @front_material.shininess)
  end

  # Surface
  GL.PolygonMode(GL::FRONT_AND_BACK, GL::FILL)
  GL.Disable(GL::CULL_FACE);
  drawshape(viewer)

  # Restore attributes and matrix
  GL.PopMatrix
  GL.PopAttrib
end

#drawshape(viewer) ⇒ Object

Draw the StlShape



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# File 'lib/cosmos/gui/opengl/gl_shape.rb', line 86

def drawshape(viewer)
  raise "drawshape must be implemented by subclass"
end

#export ⇒ Object 



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# File 'lib/cosmos/gui/opengl/gl_shape.rb', line 140

def export
  raise "export must be defined by subclass"
end

#handle_click ⇒ Object 



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# File 'lib/cosmos/gui/opengl/gl_shape.rb', line 111

def handle_click
  @click_handler.call() if @click_handler
end

#handle_doubleclick ⇒ Object 



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# File 'lib/cosmos/gui/opengl/gl_shape.rb', line 115

def handle_doubleclick
  @doubleclick_handler.call() if @doubleclick_handler
end

#hit(viewer) ⇒ Object 



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# File 'lib/cosmos/gui/opengl/gl_shape.rb', line 90

def hit(viewer)
  draw(viewer)
end

#identify ⇒ Object 



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# File 'lib/cosmos/gui/opengl/gl_shape.rb', line 94

def identify
  return self
end