`plspal1`: Set the cmap1 palette using the specified `cmap1*.pal` format file
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#### `plspal1`: Set the cmap1 palette using the specified `cmap1*.pal` format file

`plspal1 (` | filename ,
| interpolate `)`;

Set the cmap1 palette using the specified `cmap1*.pal` format file.

`filename` (``PLCHAR_VECTOR``, input)

  An ascii character string containing the name of the `cmap1*.pal` file. If this string is empty, use the default `cmap1*.pal` file.

`interpolate` (``PLBOOL``, input)

  If this parameter is true, the columns containing the intensity index, r, g, b, alpha and alt_hue_path in the `cmap1*.pal` file are used to set the cmap1 palette with a call to `plscmap1la`. (The `cmap1*.pal` header contains a flag which controls whether the r, g, b data sent to `plscmap1la` are interpreted as HLS or RGB.)

  If this parameter is false, the intensity index and alt_hue_path columns are ignored and the r, g, b (interpreted as RGB), and alpha columns of the `cmap1*.pal` file are used instead to set the cmap1 palette directly with a call to `plscmap1a`.

Redacted form: `plspal1(filename, interpolate)`

This function is used in example 16.

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