Content transformations are those that operate on the geometry or attribute content of a dataset.
Geometric Transformation is the act of restructuring the spatial component of an FME feature. In other words, the physical geometry of the feature undergoes some form of change to produce a different output.
Some examples of geometric transformation are…
- Generalization – a cartographic process that restructures data to be more easily visualized at a given map scale.
- Warping – adjustment of the size and shape of a set of features to more closely match a set of reference data.
- Topology Computation – conversion of a set of linear features into a node/line structure
Attribute Transformation is the act of restructuring the non-spatial component of an FME feature. In other words, the attributes relating to the physical geometry undergo some form of change to produce a different output.
Some examples of attribute transformation are:
- Concatenation – joining together of two or more attributes.
- Measurement – measuring a feature’s length or area to create a new attribute
- ID Creation – creation of a unique ID number for a particular feature
Address1 Suite 2017
Address2 7445-132nd Street
Province British Columbia
PostCode V3W 1J8
Concatenate Address1+”, “+Address2+”, “+City+”, “+Province+”, “+PostCode
Output Suite 2017, 7445-132nd Street, Surrey, British Columbia, V3W 1J8
Above: Example of attribute concatenation. Each line of the address is concatenated, along with some constants to get spaces and commas, to return a single line address.