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---Copyright: Matra Datavision 1997
-- File: Vrml_OrthographicCamera.cdl
-- Created: Wed Feb 12 10:46:43 1997
-- Author: Alexander BRIVIN
-- <brivin@meteox.nizhny.matra-dtv.fr>
---Copyright: Matra Datavision 1997
class OrthographicCamera from Vrml
---Purpose: specifies a OrthographicCamera node of VRML specifying properties of cameras.
-- An orthographic camera defines a parallel projection from a viewpoint. This camera does
-- not diminish objects with distance, as a PerspectiveCamera does. The viewing volume for
-- an orthographic camera is a rectangular parallelepiped (a box).
uses
Vec from gp,
SFRotation from Vrml
is
-- defaults :
Create returns OrthographicCamera from Vrml; -- myPosition(0 0 1)
-- myOrientation(0 0 1 0)
-- myFocalDistance(5)
-- myHeight(2)
-- Camera looks along the negative Z-axis
Create ( aPosition : Vec from gp;
aOrientation : SFRotation from Vrml;
aFocalDistance : Real from Standard;
aHeight : Real from Standard )
returns OrthographicCamera from Vrml;
SetPosition ( me : in out; aPosition : Vec from gp );
Position ( me ) returns Vec from gp;
SetOrientation ( me : in out; aOrientation : SFRotation from Vrml );
Orientation ( me ) returns SFRotation from Vrml;
SetFocalDistance ( me : in out; aFocalDistance : Real from Standard );
FocalDistance ( me ) returns Real from Standard;
SetHeight ( me : in out; aHeight : Real from Standard );
Height ( me ) returns Real from Standard;
Print ( me; anOStream: in out OStream from Standard) returns OStream from Standard;
---C++: return &
fields
myPosition : Vec from gp; -- Location of viewpoint
myOrientation : SFRotation from Vrml; -- Orientation (rotation with respect to (0,0,-1) vector)
myFocalDistance : Real from Standard; -- Distance from viewpoint to point of focus.
myHeight : Real from Standard; -- Height of view volume
end OrthographicCamera;
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