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SurfaceFootprintReplacer

Replaces the geometry of a feature with a planar representation of the feature's shadow.

The output features are made of polygons with 3D coordinates. Any holes in the actual shadows are missing in the output features. The light source casting the shadows is considered to be infinitely far away.

Input Ports

ClosedInput

This transformer accepts any feature, except those with null geometries.

Output Ports

ClosedFootprint

Output features with replaced shadow geometries.

Closed<Rejected>

Features with null geometries are rejected.

Parameters

Transformer

ClosedShadow Mode

Overhead Shadow: The shadows are obtained from a light source directly above the features. The shadows will have a Z coordinate specified by the Elevation parameter.

Drop Shadow: The shadows are obtained from a light source located in a direction specified by the X, Y, Z parameters. The shadows will have a Z coordinate specified by the Elevation parameter.

Perpendicular Shadow: The shadows are obtained from a light source located in a direction specified by the X, Y, Z parameters, but are cast onto a plane perpendicular to the direction of the light source. Each feature's shadow is located near the original feature, so the shadows may not all lie on the same plane.

Light Source Vector Parameters

ClosedX, Y, Z

Coordinates representing the direction of the light source projecting the shadow. The light source is considered to be an infinite distance away.

The Z coordinate cannot be 0.

ClosedElevation

The value that will be used as the Z coordinate in the output shadow features. This parameter is not used when the Shadow Mode is Perpendicular Shadow.

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

3D

Geometries

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Keywords: SurfaceFootprintGenerator