Jump to content

Troubleshooting site models


Recommended Posts

Hello everyone,


Is there any debugging procedure for a DGM?

I have a set of modifiers, pads and grade limits, tried to adress most modifier conflicts, but there are still strange things happening in the resulting topography.


For one proposed countours do odd zig-zags in unexpected places, which cannot be deleted using the "modify proposed contours" mode. It is possible to delete the extra vertices, but they just bounce right back.


Also, straight and curved roads create overlapping pads which then result in modifier conflicts. Is there a way to connect them properly?


Bildschirmfoto 2020-01-28 um 17.33.27.png

Bildschirmfoto 2020-01-28 um 17.33.04.png

Link to comment
  • 2 weeks later...
  • Vectorworks, Inc Employee

@elch  I think the site modifier of the roadway is causing this.  I can go in and edit the contours, but they get overridden by the roadway modifiers after you exit the edit mode.  I guess one workaround would be to uncheck the "use site modifiers" checkbox on the roadway, or have the site model ignore the elch-weg layer for site modifiers.  I'll write up a bug for this.

  • Like 1
Link to comment
  • Vectorworks, Inc Employee

@elch  Just heard back from the development team, I'm pasting their response below.  I'll also attach their files.


Notice that:

There is a set of adjacent Roadway (Straight) and Roadway (Curved) objects as an attempt to model a complex roadway consisting of straight and curved sections.

Actually, the Roadway (Straight) and (Curved) objects are not suitable for modeling such complex poly roadways as it is hard to vertically align the separate objects/road segments (as every separate roadway object could be sloped differently). As a result, the site model recognizes modifiers conflicts exactly where the separate roadway objects align to each other. In such cases, it is preferable to use the Roadway (Poly) object which models continuous roadway along a polyline and overcomes the vertical alignment issues.

The Site model collects modifiers from a custom set of layers (see "modifs_from_custom_set_of_layers.png”) which includes the "modifiers” design layer.

This means that all modifiers from the "modifiers” layer will be recognized and collected by the site model no matter this layer is set invisible.
Notice that there are modifiers from the "modifiers” layer which overlap some of the Roadway objects, i.e. they conflict with some of the modifiers that comes from the roadways.

Please see the attached "Research_Conflicts_Reasons_1.png" which illustrates why the site model recognizes conflicts between the modifiers it collects.

I have prepared a fixed version of the file (see the attached "p80III_modell_fixed_v2019.vwx") where:

The set of Roadway (Straight) and (Curved) objects are replaced by two Roadway (Poly) objects (they follow the same path and model the same geometry).

Some of the 3D modifier polygons in the "modifiers" layer are slightly reshaped (using the Reshape tool) so they don't overlap any of the roadways.



  • Like 2
Link to comment

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...