AutoCAD Civil 3D Customization

AutoCAD Civil 3D Customization

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brianmastbergen7071
Posts: 12
Registered: ‎01-15-2009
Message 1 of 11 (179 Views)
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Subasemlby Composer Intersection Design Help

179 Views, 10 Replies
03-31-2014 09:31 AM

We typically design intersections where one street is the through street and goes through the intersection with a normal crown and the side street ties into the edge of the pavement of the through street.

 

I know that when building the model for the radius between the throught street and the side street, I can create an alignment and profile along the edge of the through street to use as a target for my radius, however when the through street has a vertical curve through the intersection and has multiple curves along its alignment the ease and accuracy of creating the edge of pavement alignment and profile for the though street goes down.

 

When I try to use an assembly for the radius that targets a polyline along the edge of the through street for width and then targets an edge of pavement profile on the centerline of the through street for elevation I get erratic results using a typical Slope and Delta X that uses the though street edge of pavement profile to over ride the Slope.

 

Is there a way that I can build a subassembly that follows my radius and sets an auxilary point the edge of pavement of the through street using a polyline as my offset target and then determines the station of the centerline of the through street perpendicular to where my auxilary point is and and gets the profile elevation at that station to use as Y value for an X,Y link where the X comes from the X of the Auxilary point and the Y comes from the through street profile?

 

Thanks

 

 

ADN Support Specialist
Partha.Sarkar
Posts: 543
Registered: ‎06-09-2009
Message 2 of 11 (161 Views)

Re: Subasemlby Composer Intersection Design Help

04-01-2014 02:53 AM in reply to: brianmastbergen7071

Hi,

 

Subassembly composer doesn't have any API exposed yet, hence I am presuming this a something you want to achieve using subassembly composer UI tools / commands. If this is true, could you post this question to Civil 3D user forum ?

 

Thanks,

 



Partha Sarkar
Developer Technical Services
Autodesk Developer Network

*Expert Elite*
KMercier_C3D
Posts: 243
Registered: ‎12-14-2010
Message 3 of 11 (143 Views)

Re: Subasemlby Composer Intersection Design Help

04-03-2014 06:51 AM in reply to: brianmastbergen7071

I read this a few times and don't really understand what you are asking. Perhaps a sketch would help?

Kati Mercier, P.E.

Co-author of "Mastering AutoCAD Civil 3D 2013"
AutoCAD Civil 3D 2013 Certified Professional and AutoCAD 2013 Certified Professional
AU2012 Speaker::: CI3001: Reverse Engineering with Subassembly Composer for AutoCAD Civil 3D
AU2011 Speaker::: CI4252: Create Subassemblies That Think Outside the Box With Subassembly Composer for AutoCAD® Civil 3D®
Contributor
brianmastbergen7071
Posts: 12
Registered: ‎01-15-2009
Message 4 of 11 (139 Views)

Re: Subasemlby Composer Intersection Design Help

04-03-2014 07:46 AM in reply to: KMercier_C3D

See the attached drawing.

 

I am working my way around the northwest part of the intersection. My cooridor section starts at the curb at point A with the width of the corridor section controled by a poyline along the edge of pavement of Through Street at point B. If I try to get the profile elevation of the alignment for Through Street in order to set the elevation of Point B, the cooridor takes the elevation at point C which is the extension of the corridor section. This is not what I want. I would like to be able to get the centerline elevation of Through Street at point D and use it to calculate the elevation at point B.

 

I know I can create an alignment and profile at the edge of paving and get elevations from it, but I am trying to reduce the number of alignments and profiles needed becuase it really bogs processing down when you have a large subdivision and creates opportunities for errors if all the profiles do not get updated when you change the profile of Through Street.

 

If you can help, that would be great. 

*Expert Elite*
KMercier_C3D
Posts: 243
Registered: ‎12-14-2010
Message 5 of 11 (133 Views)

Re: Subasemlby Composer Intersection Design Help

04-03-2014 08:58 AM in reply to: brianmastbergen7071

Unfortunately you can't 'bend' a subassembly to reference anything other than the things that it intersects within it's own individual plane. Therefore you need to have B calculated in reference to D some other way as you mentioned which just unfortunately can result in lots of Offset alignments. 

Kati Mercier, P.E.

Co-author of "Mastering AutoCAD Civil 3D 2013"
AutoCAD Civil 3D 2013 Certified Professional and AutoCAD 2013 Certified Professional
AU2012 Speaker::: CI3001: Reverse Engineering with Subassembly Composer for AutoCAD Civil 3D
AU2011 Speaker::: CI4252: Create Subassemblies That Think Outside the Box With Subassembly Composer for AutoCAD® Civil 3D®
Contributor
brianmastbergen7071
Posts: 12
Registered: ‎01-15-2009
Message 6 of 11 (129 Views)

Re: Subasemlby Composer Intersection Design Help

04-03-2014 09:19 AM in reply to: KMercier_C3D

Thanks Kati,

 

Is there a way to make the profile of the offset alignment at the edge of pavement dynamic so it follows the centerline profile of the street?

 

 

*Expert Elite*
KMercier_C3D
Posts: 243
Registered: ‎12-14-2010
Message 7 of 11 (124 Views)

Re: Subasemlby Composer Intersection Design Help

04-03-2014 09:40 AM in reply to: brianmastbergen7071

You can Create Alignment from Corridor (Home ribbon, select the Alignment dropdown and it is an option there) which will keep your offset alignment dynamically linked to the corridor. 

Kati Mercier, P.E.

Co-author of "Mastering AutoCAD Civil 3D 2013"
AutoCAD Civil 3D 2013 Certified Professional and AutoCAD 2013 Certified Professional
AU2012 Speaker::: CI3001: Reverse Engineering with Subassembly Composer for AutoCAD Civil 3D
AU2011 Speaker::: CI4252: Create Subassemblies That Think Outside the Box With Subassembly Composer for AutoCAD® Civil 3D®
Contributor
brianmastbergen7071
Posts: 12
Registered: ‎01-15-2009
Message 8 of 11 (119 Views)

Re: Subasemlby Composer Intersection Design Help

04-03-2014 10:50 AM in reply to: KMercier_C3D

Yes. I can create and alginment from the corridor, however in reading the help file, profiles created from corridor feature lines are static.

*Expert Elite*
KMercier_C3D
Posts: 243
Registered: ‎12-14-2010
Message 9 of 11 (113 Views)

Re: Subasemlby Composer Intersection Design Help

04-03-2014 10:57 AM in reply to: brianmastbergen7071
My mistake, I forget that the Alignments from Corridor aren't dynamic. I think it's the Feature Line from Alignment that stays dynamic? (Serves me right for trying to answer without opening the software first.)
Kati Mercier, P.E.

Co-author of "Mastering AutoCAD Civil 3D 2013"
AutoCAD Civil 3D 2013 Certified Professional and AutoCAD 2013 Certified Professional
AU2012 Speaker::: CI3001: Reverse Engineering with Subassembly Composer for AutoCAD Civil 3D
AU2011 Speaker::: CI4252: Create Subassemblies That Think Outside the Box With Subassembly Composer for AutoCAD® Civil 3D®
Mentor
tyronebk
Posts: 168
Registered: ‎08-17-2007
Message 10 of 11 (108 Views)

Re: Subasemlby Composer Intersection Design Help

04-03-2014 10:59 AM in reply to: brianmastbergen7071

Extracted alignments and profiles are static, but featurelines can be made dynamic. I don't believe you will be able to target a featureline created by its own corridor, it will likely need to be in another corridor.

Edit: Looks like Kati beat me to the answer.

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