- Continuous, the legend contains a color bar and a min and max label, the legend sorts in descending order by default with the maximum value on top. If there are fewer than 20 values in the continuous data, the legend displays as a list of discrete colors and values rather than a color bar.
- Classified, the legend contains a list of colors and classification labels. When changes are made to the raster using Advanced Raster tools that affect the display, the raster legend automatically updates.
About Continuous Raster Legends
A Continuous raster legend displays like a color bar. The larger the filter value, the more the color bar looks like a smooth gradient of colors. The initial bar size is based on a default value, but can be changed. The default filter is 100 colors evenly distributed along the bar height. The default size is 0.25 inches by 2.0 inches in a vertical orientation. You can change the size and orientation in the Legend Frame Properties dialog (right-click on the legend frame and select Modify Legend Frame Properties). The continuous raster legend uses the title or label row font sizes from settings in the Legend Preferences dialog.
MapInfo Pro rounds the values of a continuous raster to produce nicer looking values in the legend. The rounding is done per value, so the precision between the minimum and maximum values may not be the same. The values in the legend may not be exactly the same as the values in the XML file. To show different values, you can customize the labels in the Legend Frame Properties dialog (right-click on the legend frame and select Modify Legend Frame Properties).
About Classified Raster Legends
Classified raster legends look like an Individual Value thematic legend, which is a discrete list or rows separated by a gap. The classified raster legend region swatch sizes, title, and label row font sizes are set in the Legend Frame Properties dialog (right-click on the legend frame and select Modify Legend Frame Properties).