Contents
How to do field mappings in ArcGIS Pro?
A list of Field objects. Each field object represents the properties of each output field. Add a field map to the field mappings. Adds a table to the field mappings object. Exports the object to its string representation. Find a field map within the field mappings by name. Returns a FieldMap object from the FieldMappings object by index position.
How to merge fields in a fieldmap object?
If a FieldMap object contains multiple input fields from the same table or feature class, each record’s values are merged using the mergeRule property. This is a convenient way to join values, such as a street name that is held in one field and a street type that is held in another, for example, Eureka and Street.
How to create a fieldmap object in Java?
The easiest way to work with these objects is to first create a FieldMappings object, then initialize its FieldMap objects by adding the input feature classes or tables that are to be combined. Once all inputs are provided, the FieldMappings object will contain one FieldMap object, or output field, for each unique field name from all the inputs.
What are the properties of a fieldmap object?
The FieldMappings object is a collection of FieldMap objects and it is used as the parameter value for tools that perform field mapping, such as Merge. The properties of the FieldMap object include the start and end position of an input text value, so an output value can be created using a slice of an input value.
How to add a field to the field map?
The context menu for an output field has the following options: Add Input Field opens a dialog box that lists all input fields. Select one or many input fields and click OK to add them to the output field. Delete removes the output field from the field map.
What are the attributes of a fieldmap object?
Both original feature classes have two attributes: Type and Diameter. These two attributes must be maintained through the merge. This sample displays the option of using FieldMap objects to merge fields, using the FeatureClassToFeatureClass tool.