Setting and Managing Layers > Layer Properties

Labeling

The last tab, "Label", in Layer Properties window allows users to set the display and the styles of labels. First of all, if you want to label the features on the map, please check "Show Labels." And then select “Label all features” or “Labels features based on an SQL query”. Users could select conditions by attribute to make system to label those features that meet the conditions. The way to set the filtering conditions is as the same as that to set “Feature Filter”. Users can make a reference to indication of section “Feature Filter” in “Layer Properties.” And in "Text Label" drop-down list, you can choose the field whose attribute value you want to display. "Field" drop-down list contains all of the field names and “expression.” Therefore, the label can not only be the values in the attribute table but also the results of expression. The "Field" drop-down list defaults to the field whose name containing “name.”

In addition, you can set the font and color of labels in the tab. Moreover, the tab also allows users to set the label duplication and conflict detection. Considering the readability of labels, you can click "Visible Scale" button to set the visible scale of labels. Furthermore, according to the type of layers, users can set the placement of label in different ways. The methods to label features of different types will be introduced in the following section.