---
name: "plvasp"
section: "3plplot"
platform: "linux"
package: "plplot-doc"
version: "5.15.0+dfsg2-15"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/plvasp"
---

# plvasp(3plplot)

Specify viewport using aspect ratio only

## NAME

**plvasp** - Specify viewport using aspect ratio only

## SYNOPSIS

**plvasp**(*aspect*)

## DESCRIPTION

Selects the largest viewport with the given aspect ratio within the subpage that leaves a standard margin (left-hand margin of eight character heights, and a margin around the other three sides of five character heights).

Redacted form: **plvasp(aspect)**

This function is used in example 13.

## ARGUMENTS

- *aspect* (**PLFLT**(3plplot), input)

  Ratio of length of y axis to length of x axis of resulting viewport.

## AUTHORS

Many developers (who are credited at http://plplot.org/credits.php) have contributed to PLplot over its long history.

## SEE ALSO

PLplot documentation at http://plplot.org/documentation.php.