FaceReplacer

Replaces the geometry of a feature from donut, raster, or polygon to face. If the donut or polygon is not already three-dimensional, a 0.0 value for Z coordinates is assumed.

A face is a planar area in 3D space. The planar structure can be a raster, polygon or a donut.

For a raster, the transformer will replace the geometry with a face with the same bounding box as the original raster with a textured appearance using the original raster, as applied from the top view.

The planar area has a concept of a surface normal, a vector that points outwards perpendicular from the area. The direction of the surface normal in a face is determined by using the right-hand rule: if the fingers of your right hand curl along the order of the vertices, the direction that the thumb points to is the direction of the surface normal.

Output Ports

Parameters

Usage Notes

  • This transformer has no effect on features that have geometries other than raster, donut, and polygon.  
  • You can use the 3DForcer to turn 2D geometry into 3D geometry.

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.

Defining Values

There are several ways to define a value for use in a Transformer. The simplest is to simply type in a value or string, which can include functions of various types such as attribute references, math and string functions, and workspace parameters. There are a number of tools and shortcuts that can assist in constructing values, generally available from the drop-down context menu adjacent to the value field.

Dialog Options - Tables

Transformers with table-style parameters have additional tools for populating and manipulating values.

FME Community

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Keywords: 3DFaceCreator