plgvpd: Get viewport limits in normalized device coordinates
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plgvpd: Get viewport limits in normalized device coordinates

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:

This function is used in example 31.

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