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

# pl\_setcontlabelparam(3plplot)

Set parameters of contour labelling other than format of numerical label

## NAME

**pl\_setcontlabelparam** - Set parameters of contour labelling other than format of numerical label

## SYNOPSIS

**pl\_setcontlabelparam**(*offset*, *size*, *spacing*, *active*)

## DESCRIPTION

Set parameters of contour labelling other than those handled by [**pl\_setcontlabelformat**(3plplot)](/pl_setcontlabelformat/3plplot.md).

Redacted form: **pl\_setcontlabelparam(offset, size, spacing, active)**

This function is used in example 9.

## ARGUMENTS

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

  Offset of label from contour line (if set to 0.0, labels are printed on the lines).  Default value is 0.006.

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

  Font height for contour labels (normalized).  Default value is 0.3.

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

  Spacing parameter for contour labels.  Default value is 0.1.

- *active* (**PLINT**(3plplot), input)

  Activate labels.  Set to 1 if you want contour labels on. Default is off (0).

## 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.