MAGNET Modeler for Autodesk: Road lines

How to manage road line element parameters in MAGNET Modeler for Autodesk

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MAGNET Modeler for Autodesk: Road lines

Road lines allow you to create roads, railroads, rivers, and other road-like areas to the surface model.

The road lines object reads AutoCAD polylines, lines, arcs, circles, ellipses, and splines. The road line is a flat geometry cut into the surface model along the polyline.


•  layer  

Layer where road line polylines or lines are.

•  materials 

Material of the road line.

•  description 

A descriptive text for the entry. If defined, it will be shown instead of the long description.

•  info text 

Information text attached to items.

•  info URL 

URL link attached to items. MAGNET Explorer can launch a web browser with the URL.

•  object data tables 

These are Autodesk Map object data tables that will be used for source of object information for the elements in the virtual model. The table list also matches wildcards.

•  width 

Width of the road.

•  TextureAlongPath 

If set to yes, the road line is textured along the path. Otherwise, the texture is mapped on the road area as a mere square. It won't be rotated or scaled in any special way, only bounded to the road area. This is faster.

•  interpolate_z

  • no = The road is not interpolated. Its Z-value is taken from polyline vertices. The road is planar (horizontally when looking along the road). 
  • vertices = The road is interpolated to the ground at polyline vertices. The road is planar.
  • follow_ground = The road follows the surface shape and is not necessarily planar. This is the default.

•  cut

  • yes = Cuts the existing surface along the border line into the surface model.
  • no = Creates a copy of the underlying surface on top of it.
  • patch = Creates an optimized patch surface on top of the underlying surface. An optimized surface has much less triangles and is very suitable for road markings.

•  target_layers 

These material area settings affect only the surface on layers defined here. The default value (*) means that all surfaces are affected.

•  group 

The name of the group of these items.

•  generation_priority 

If multiple layers are at the same height, the generation priority defines which one has a higher priority and shows it on top of the other object. (In practice, it is recommended to give a small additional height value to the object to ensure the correct order of components.)

•  auto_segmentation_distance 

Divides the original polyline with this distance and adds new points. This parameter is useful for better control of following surface and long arc segments. The minimum value should be 2.0.

•  auto_segmentation_angle 

Divides polylines using an angle threshold so that the resulting polyline will fall within this angle value. This only affects curved polyline segments like splines and arcs.