DEFINITION OF A PARALLEL SPHERICAL 3D VIEW AROUND Y
CALL SEQUENCE
TV3SLY (WKID,VIEWID, XC,YC,ZC , PHI,TETA,ZOOM, VIEWPT)
INPUT PARAMETERS
INTEGER WKID
INTEGER VIEWID
REAL XC,YC,ZC
REAL PHI
REAL TETA
REAL ZOOM
REAL VIEWPT (6)
ARGUMENTS
- WKID
- Identifier of the workstation on which the view is defined.
- VIEWID
- Index of the view to define.
- XC,YC,ZC
- Coordinates (in normalized space [0-1] × [0-1] × [0-1]) of the
point in the scene to center on.
- PHI
- Angle phi around the Y-axis, expressed in degrees.
- TETA
- Angle theta, expressed in degrees.
- ZOOM
- Zoom factor to apply to the image.
- 1
- the image is normal
- 2
- the image is enlarged to twice the normal size
- 0.5
- the image size is reduced to half its normal size, etc)
- VIEWPT
- Viewport (see TVIEWC).
EFFECT
This function defines the view identified by the integer VIEWID. The observer
looks toward the point XC,YC,ZC, the orientation given in spherical
coordinates, PHI and TETA, in relation to the Y-axis. The projections used by
the view thus defined are in parallel.
