plgvpd
( | p_xmin, |
p_xmax, | |
p_ymin, | |
p_ymax) ; |
Get viewport limits in normalized device coordinates.
p_xmin
(PLFLT_NC_SCALAR
, output)
Returned value of the lower viewport limit of the normalized device coordinate in x.
p_xmax
(PLFLT_NC_SCALAR
, output)
Returned value of the upper viewport limit of the normalized device coordinate in x.
p_ymin
(PLFLT_NC_SCALAR
, output)
Returned value of the lower viewport limit of the normalized device coordinate in y.
p_ymax
(PLFLT_NC_SCALAR
, output)
Returned value of the upper viewport limit of the normalized device coordinate in y.
Redacted form:
General: plgvpd(p_xmin, p_xmax, p_ymin, p_ymax)
This function is used in example 31.