AutoCAD Civil 3D :: Sub Assembly Composer Change Sign Of Slope
Jan 7, 2013
I have an Input parameter called "Construction Slope" of type "Slope" that I would always like to be negative. As i did not find the possibility to restrict end user to inputing only negative value I tried to change the sign of the slope to negative if it is positive by using an "IF" expression (when used as a "Geometry Property" for a new link):
IF(ConstructionSlope<=0,ConstructionSlope,(-1)*ConstructionSlope)
However this expression produces an error: "Compiler error(s) encountered processing expression <...> Cannot infer a common type because more than one type is possible". If i remove multiplication by -1 then the error is gone (and the whole expression becomes meaningless as well of course). See even attached image.
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Oct 8, 2012
Its a embankment crest (dam wall) and then sloping down at an angle to a target elevation. I want it to shoot through my topo / surface and then apply a boundary later.
It looks fine in Composer but doesn't show up in C3D - only straight line. Would like the same outcome as the Generic Link Code - LinkSlopetoElevation.
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Oct 22, 2012
I'm trying to build the ditch portion of my Subassembly backwards from an offset target "DitchOffset". The elevation of this point should be derived from a point that is using Slope and Delta Y from point "P12" (see attached). Must be at least 1m from the bottom of SubBase with a 5:1 slope.
The Ditch Bottom will be variable width. I'd like to be able to select my offset alignment for my ditch bottom. Have a link from this point extend at a slope to the Target Surface to complete the foreslope.
I can't quite picture how to complete the links from the DitchOffset point. This may be complicated but the diagram identify what I'm trying to do.
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Jul 11, 2013
I thought I created a rail sub assembly.
So I created the rail sub assembly everything looks great in sub assembly composer.
Start a new dwg data reference in the rail alignment, Note the rail alignment type is set to rail.
Create an assembly and under the Construction tab for the assembly the Assembly Type is set to Railway. Attach my custom sub assembly to this assembly.
Created a corridor and I get this error: Something wrong with current subassembly: Operation is not valid due to the current state of the object.
So I delete my sub assembly attach the Civil 3D Rail Single sub assembly. Re run corridor and everything works fine.
So I promote the alignment change type to centerline. Delete the Rail Single sub assembly put my rail sub assembly back. Rerun the corridor and everything works.
So then I undo everything up to the point of promoting the alignment.
Opened the base file changed the alignment type to centerline.
When I tried to synchronize the references I ended up a broken reference with the following error. Invalid reference. Synchronization failed
Not good we already have plan sheets cut.
where in sub assembly composer were do I define the sub assembly to be for Rail?
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Aug 13, 2012
I am in the process of transitioning from land desktop to Civil 3D. I design roads in steep terrain and sometimes need to have my catch (daylight) slopes change. So my question is, how do I change a daylight slope at a specified depth? For example, from the shoulder of the road I want a 3:1 fill slope to a depth of 10 feet than change to a 2:1 slope until it catches the existing surface. Can this be built into a subassembly such that if the fill is less than 10 feet it will daylight correctly at a 3:1 and if the depth is greater than 10 feet then it carries the 3:1 for 10 vertical feet and then changes to the 2:1 until it daylights?
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Jul 13, 2011
A way to edit the stock Sub Assemblies provided by Autodesk?? I noticed they are compiled into a dll, therefore there is not a way to open them as a pkt that I am aware of. My intention is not to get rid of what Autodesk has provided but to add on to them.
Many times I have been asked "This sub assembly is great but can it do this?" of course it is the one thing that particular sub assembly can't do. For instance, the Varying Width sub assembly can't extend the top layer while having the sub base layers go in a negative direction.
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Jul 8, 2011
Good site that would show how to write VB expressions for the Sub Assembly Composer?
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Jun 19, 2013
I'd like to view the point codes (and also the links and shapes) of an assemby I have on my c3d drawing.I dont see nothing to get it ....
Civil 3D (2013)
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Nov 19, 2013
I create Curb Return Fillet assembly with shoulder in SAC , but now i have problem with targeting , when i giving two targets it takes only first target and ignores second, could you check attached assembly and drawing ?
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Mar 3, 2012
I am trying to build a corridor using a conditional slope assembly that considers the roadway and links into the lots.
The corridor is divided into 3 regions. All targeting has been assigned.
The first region appears fine. The second and third show no links beyond the roadway.
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May 13, 2013
I am adding on to an existing roadway. I want to match my exist.cross slope of the road way which will vary.
When I select to use the parameter reference LinkoffsetandSlope I get a slope, but it is in the wrong direction.The linkoffsetandslope is getting the grade from the existing CL of roadway and the existing edge of pavement.
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Mar 13, 2012
When I created my subassembly with subassembly composer, it's difficult to change the sequency of the input/output parameters. Do we have an easy way to do that, Like moving?
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Mar 7, 2013
I'm looking to make an assembly to follow the crown of the existing roadway which is to be milled and overlayed. In addition to being milled and overlayed there will be a curb bumpout which will be full depth pavement. The roadway does not hold a constant crown at 2%, it varies which is why I would like it to mimic the existing roadway cross slope. What would be the best way to go about making an assembly to model this. I have attached an image so that you may get an idea of the situation. I have a curb gutter line which I would like the assembly to target in both width and elevation. The single slanted hatch is mill and overlay and the double slanted hatch is full depth pavement (widening).
C3D 2012
Win 7 x64
8 GB Ram
Quadro K4000
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Sep 24, 2013
Is there a better an easier way to change the order of input/output parameters in the subassembly that i've created in SAC 2013 than the one where you have to go into a XML-file in the PKT archive file?
I've created my subassembly and I want to control the order of parameters to have a flow similar to the actual workflow.
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Apr 23, 2013
I want to make a subassembly in SAC 2013 to change the slope after require depth,see attached example.
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Apr 24, 2013
issue that when the xref a drawing with Surface Slope Arrows, that the style changes in the child drawing compared to the parent?
I am hoping to use the standard I am used to of the arrow pointing down the hill (towards the -10ft) rather than what the child file is showing of uphill (away from the -10ft).
Civil 3D 2013, HF3.0
Windows 7, 64-bit, SP1
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May 13, 2013
Is there a way to change the settings on the Profile Layout Parameters to display as Gradients instead of the default Slopes?
E.g. I'd like to type in 1 in 150 instead of 0.6666666% etc
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Aug 20, 2012
Can you not perform a slope-slope intercept to place a PVI? Essentially holding the sta and elev of the PVI's directly before and after the PVI of interest and changing the grade in and out so that the sta and elev of the PVI of interest are changed.
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Mar 22, 2011
Can't figure out how to match gutter slope to outside lane super subassembly slope. Have super eop targeting a feature line with elevations, but when i check section editor gutter slope doesn't match pavement slope.
Civil3D 2013
Windows 7, 64 bit
Intel i7 2600 @ 3.40Ghz
16 GB RAM
Nvidia Quadro 600
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Jan 22, 2013
i need a shoulder subassembly that varies slope in relation to the lane superelevation slope. i know that i can get a subassembly for the shoulder that will follow the alignment superelevation xml data but in my case i can't use it because we are just adding a shoulder to an existing road. we're not changing the superelevation of the existing road, just milling and overlaying and widening. right now i've created a profile of the outside edge of the shoulder that gives me the correct shoulder slope but whenever i change my centerline profile i have to redo the shoulder profiles which is a real time suck.
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Aug 5, 2013
What is the meaning of the (*) sign near the part (see picture atttached)?
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Nov 1, 2013
I'm in the process of building a subassembly in SAC. My goal is to have it transition from one cross section to another over a set length (by using station values). I can set it up so that at a certain station it switches cross sections, but I need to have a gradual change.
I've looked at other posts on here, but they all relate to road cross sections and changing slope (at least from what I saw). Any insight as to the proper way to do this (maybe with Auxiliary points and links)
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Aug 15, 2013
I know this sounds like a really stupid question. Where is the subassembly composer? We have Civil3D 2013, and my understanding was that the subassembly composer was supposed to automatically install in 2013 as opposed to previous years when you had to download it from the Subscription Center.
C3D 2013
64-bit
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Jul 23, 2013
How to use the superelevation. I read that I have to enter this command:
if((Side=Left)AND(SE.HasLeftLO), SE.LeftLO,
if((Side=Right)AND(SE.HasRightLO), SE.RightLO,
CType(slope,Double)))
but I don't know where, and I just want to create a simple assembly with a slope and delta X and having a lane outside superelevation for the both side.
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Jul 13, 2012
I am creating an subassembly for Tunnel in the subassembly composer.I am wondering how can i draw an ellipse with the minor and major radius data.I tried it with curve geometry but it doesn't seem to be accurate.best way to draw an ellipse with the major and minor axis parameter?
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Dec 6, 2011
I have a basic wall sub assembly that I created in SAC.Its looks fine in the SAC but when I import it into Civils it does not work...I have changed the extension from pkt to zip so that I can post it on here
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Feb 13, 2013
I am working with SAC , and cant understand how that superelevation works, how to make my models work in CIvil 3d in superelevations... how to build it properly in SAC. I would rly love to get .pkt file with working model as example , or at least get some usefull tip.
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Nov 5, 2012
I need to make them my best friend because the Subassembly Composer is basically useless unless you use the proper point coding for your SAs. This I know... I've attached an image from the Autodesk file that shows multiple point codes per link and point for the DaylightStandard Civil 3D Stock SA.
Which point codes must I use in my subassemblies to ensure I can create corridor surfaces properly down the road? For example the DaylightStandard SA shows...
P3 shows: Ditch_Out, Hinge, Hinge_Cut
P3 also shows: Daylight, Daylight_Fill
P4 = Dayltight, Daylight_Cut
If I'm building something similar in the Subassembly Composer what the heck do I focus in on for my point code. I will have issues with my Corridor surfaces down the road if I don't do this properly up front. I've seen examples where the Input / Output Parameters you define a string for the coding, is this to apply multiple codes to a point or a link?
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May 22, 2012
Every time I try to edit the Contents of a label on the Layout Tab of the Style Composer I get the errors below. I've tried a restart, a reboot, a repair and a reinstall with no change. This happens even in a new blank drawing.Each of these messages appears and has to be closed about 5 times.
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Mar 11, 2013
I understand the procedure for IMPORTING a pkt file from SAC into C3D. But is there a way to go the other direction?I want to use certain SAs that come with OOB C3D -- but I want to customize them.
Of course I can recreate them -- but I'd rather not start from scratch (ESPECIALLY where it comes to the codes).
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Oct 29, 2013
I can import my SA fine, but the problem is that the top of it needs to be cut off 1 m above the existing ground (which is already a surface in civil 3d). How do I setup the target surface so that when I import the SA into my drawing, I can link it to that surface and have it cut off 1 m above the surface?
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