
<section
id='WCGIS_DEFDATUM_ApplicationOptions_DefaultDatum_id'>
    <title>
        Default Datum
    </title>
    <para>
        In BaseOps, you can set a <termtext>default datum</termtext> that
        will be assumed for all geographic data unless you specify otherwise.
    </para>
    <para>
        If the majority of the geographic data that you work with is in
        a single datum, choose it as the default. Otherwise, set the default
        to WGS-84. You will be able to override the default datum where
        necessary.
    </para>
    <para>
        To set the default datum, choose <menutext>Application Options</menutext>
        from the <menutext>Tools</menutext> menu, then go to the Default
        Datum page of the Application Options dialog box.
    </para>
    <exhibit>
        <img
        src='WCGIS_DEFDATUM_ApplicationOptions_DefaultDatum_ScreenCap.png'/>
    </exhibit>
    <para>
        See <iref target='WCGISxWCF_DatumControl_id'/> for information
        about the datum control, which you use to specify the default
        datum.
    </para>
</section>
