RM Bridge Modeler Help

Axis - Plan view, cubic curve

A cubic element is connected to the previous axis element.

SettingDescription
Length

Parabola length

Default: 0.0 [m]
Radio buttons Radius or Curvature A parabola can be defined by a radius or a curvature. Due to the habit  in the surveying works the default selection is "Radius".
Input of a radius
SettingDescription
Initial radius

Radius at the begin of the parabola element. The radius can be positive or negative. Left and right turning curves are differed by a positive or negative radius (see coord ). A curvature 0.0 (Radius 1./0.0 = "infinite") can be specified by a radius = 0.

Default: 0.0 [m]
End radius

Radius at the end of the parabola element. The same rules for the curvature sign as for the element begin are valid.

Default: 0.0 [m]
Input of curvature:
SettingDescription
Start curvature

Curvature at the begin of the parabola element. The curvature can be positive or negative. Left and right turning curves are differed by a positive or negative curvature (see coord ).

Default: 0.0 [1/m]
End curvature

Curvature at the end of the parabola element. The same rules for the curvature sign as for the element begin are valid.

Default: 0.0 [1/m]
Parent topic: Ground plan window
Related conceptsRelated reference