3DArcReplacer

Category: Manipulators

Replaces the geometry of the feature with a two-dimensional arc whose shape is set by the parameters, which can be either constant floating point values or the values of existing attributes.  

The center x, y, and z parameters set the origin of the arc.

The primary and secondary axis set the radii of the arc. Note that the primary axis need not be larger than the secondary, however, the rotation angle is always measured from the x axis to the primary axis. To make a circular arc, set both the primary and secondary axis to the same value.

The start angle controls where the arc begins, and is measured in degrees counterclockwise from horizontal.

The sweep angle controls the duration of the arc, and is measured in degrees. The arc will run from the start angle to the start angle plus the sweep angle.

The rotation angle is measured in degrees counterclockwise from horizontal, and measures the rotation of the primary axis from horizontal.

Each of the parameters may either be entered as a number, or can be taken from the value of a feature attribute by selecting the attribute name from the pull-down list.

If the parameters for the arc are not known and need to be calculated from a linear feature’s geometry, the ArcEstimator should be used.