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Interpolates elevation values along a non-aggregated linear feature from a starting value to an ending value. The resulting feature’s elevation will monotonically increase (or decrease) from the starting value to the ending value.

Input Ports

Output Ports


You can enter the parameters as a number, or choose them from the value of a feature attribute by selecting the attribute name from the pull-down list.

Usage Notes

The SurfaceDraper transformer (available in FME Professional edition and higher) can be used to supply interpolated elevation values based on a 3D grid or set of 3D features to the vertices of two-dimensional features.

FME Licensing Level

FME Professional edition and above

Editing Transformer Parameters

Using a set of menu options, transformer parameters can be assigned by referencing other elements in the workspace. More advanced functions, such as an advanced editor and an arithmetic editor, are also available in some transformers. To access a menu of these options, click beside the applicable parameter. For more information, see Transformer Parameter Menu Options.

Transformer Categories


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