Automatic Legend Update allows for simple updating of an existing legend. Automatic Legend Update lets you update attribute data, or change the symbology/classification method/attribute field that is linked to a legend, and automatically have the legend update to reflect these changes. This is possible even with MAP Themes and Legends created in older versions of MAPublisher.
This example classifies populated places in Hawaii based on elevation. We will use the ‘Create MAP Theme Legend’ tool to create a copy of the legend, which by default will be set to automatically update. Any future changes applied to the associated MAP Theme will automatically be applied to the new legend.
- Open the MAP Themes panel from the MAPublisher toolbar. With the ‘Elevations of Places’ MAP Theme selected, click the ‘Create MAP Theme Legend’ button to create an Automatic Legend Update.
2. You’ll be prompted to create a Legend layer if you don’t already have one. Click ‘Create Legend Layer’ to continue.
3. Note the legend in the ‘Preview’ section and how the legend styling and symbology are preserved, thus saving time. Click the ‘Updating’ tab to see or change your Automatic Legend Update settings. The “Automatically update legend when source theme is applied” checkbox is checked by default. Check the option to “Match original legend extents” to maintain the size and extent of the legend so as to not change the map layout when items are added to the legend. If unchecked, the legend elements will change size in order to fit within the existing legend extents. “Maintain aspect ratio” is checked to make sure that the legend elements resize proportionally and a ‘Centre’ anchor allows the resizing to start from the centre of the elements. Once you’re satisfied with your settings, click ‘Create’.
This will create a new legend with Automatic Legend Update that can be moved to any location on the map.
Now that you have created a copy of the legend with Automatic Legend Update, your legend will update when changes are applied to the associated MAP Theme.