Positioning Parametric Slopes
A parametric slope can be selected to be added such that either the top or bottom surface of the edge is positioned at the defined elevation.
Top plane
When this function is activated, a horizontal structure is added such that the top surface of the structure is positioned on the plane defined by edge elevation, slope pitch and selected points.
Bottom plane
When this function is activated, a horizontal structure is added such that the bottom surface of the structure is positioned on the plane defined by edge elevation, slope pitch and selected points.