Description of the relationship and difference between labels and annotation in ArcGIS:
In ArcMap, you can use label and annotation to identify elements. Choosing label or annotation depends on how you need to control text display and how to store text In ArcMap. Labels of some or all elements in a layer can be created independently or dynamically. However, it is better to use annotation in some cases) it can be converted from a label or imported from a coverage.
After roaming and scaling, a dynamically created label is repainted according to the optimal position under the current map scale, because the dynamically created label is stored as a layer attribute, changing settings, such as classification, symbols, or positions, will affect labels in layers ).
Note can be created from a sketch or converted from an existing coverage. When you use the method to create a note (annotation), the current scale will be used as the reference scale, note elements are always displayed by reference to the size specified by the scale.
Annotation can be stored as a map image or a Geodatabase element. Each annotation text can be operated independently, because annotaion is just a type of element, its size remains unchanged from other elements on the map. Annotaion stored in Geodatabase can or cannot be linked to a single element. A non-linked annotation is a geographic location text string and is not associated with any element in other element classes. The text in the Link element annotation comes from one or more fields in the Attribute Table of a related vertex, polygon, or line element. When the relevant elements are moved, annotation also follows. Professional 3 s station 3s8.cn
If you use a label, how to label the elements depends on how the map is used and how the data is displayed. These considerations will help you decide which annotation method to use in a given situation. You can use the text tool to mark some elements, or you can use the built-in functions of ArcMap to mark elements based on layer-related attribute data interaction or dynamic.
