AutoCAD Civil 3D :: How To Remove Curves From Alignment
Apr 17, 2012
I have alignment with 2 curves at the beginning and end that I want to keep. It has a few PIs in between ke that are not supposed to have curves, but Civil 3D added them in (very short 200 ft radius curves), but I need to take all but the first and last curves out.
I tried setting Constraint Editing - toggled OFF lock all parameter constraints. Then I went into the data and tried to change the parameter. Can't get the curve out. Is there a way to convert a PI from one with a curve to one without a curve?
I can't afford to redraw this alignment - it's being referenced via Data Shortcuts to multiple drawings being used by me and my designer / already has my design profiles and existing profiles attached to it.
How to do this? - Delete the curves and make them PIs only? (without curves).
When i try to Add a Alignment Table for curves , and everry time i select the aligment or it's lable , it tells me that no Item Found,now what exactly i'm supposed to select ?
i use C3D 2012 Sony VPCCW26FA Intel Core i5 M 520 @ 2.40GHz 8192MB RAM NVIDIA GeForce GT 330M 512MB Dedicated
I created a horizontal alignment from objects and upon importing it c3d seems to have taken liberty to arrange the lines in order it sees fit. Is there a way to rearrange the alignment tangent and curves and change their direction?
Civil 3D 2012 SP4.0 Windows 7 Enterprise 64-bit C3D 2014 SP1 Dell M6600, Core i7 @ 2.3GHz, 16 GB ram Dell T3500 workstation, too much ram to post
Ok I am attempting to add a floating curve from the end of a simple straight alignment. No matter what I do the curve is created from the left end of the alignment. I first created an alignment from objects. I tried reversing the alignment and it still comes from the same point. I tried creating an alignment and drawing the objects using a fixed line. Still from the same point. How do you get it to create the floating curve from the opposite end?
I have an alignment file that is xref into multiple dwg files. For the one file, however, the curve plots as "continuous", while the tangents plot as "center". In all the other sheets it plots fine. The alignment styles are good. Looking at it on my screen it looks fine. The xref is on its own layer (not zero or some random layer). All the psltscale, msltscale and celtscales are set to 1. The ltscale is set to .5 (set to 1 doesn't change anything). What am I missing??
i have an issue in with my created sheets that does not show vertical alignment data. everything on the bands shows up nicely but the lines, curves and labels profile are missin.
see the attached image. you can notice from the image that there is no a signle data..
I using a data reference/shortcut to properly label an alignment in paperspace. However when I reference the alignment in and apply the labels the aren't the same as the original alignment that I am referencing. Is there a setting where I am supposed to apply a new beginning station.
Also it seems as though the stationing(distance) isn't even matching up 1:1 with the original drawing. For example in the original base drawing my alignment starts at 10+00 with the next PI at 14+76.98, but the stationing on the reference alignment starts at 0+83.33 with the very same PI being labeled as 1+23.08. So the very same distance is 476.98' in the real design and the drawing it's being referenced in, but the stationing of the referenced alignment shows it as 39.75 Units.
I've attached a screen of the beginning of the alignment.
Civil 3D 2012 Windows 7 Service Pack 1 Intel Core i7-2600 CPU 16GB RAM
Using Civil 3d2012, Is it possible to change the alignment label style set after the alignment has been created? For example, for an alignment that was created with alignment label set X - change the label set to alignment label set Y? It seems like this should be pretty easy, I must be missing something obvious.
I have a question on Alignment PI's. (Point of Inflection/Intersection)I have an alignment where some PI's have curves, others are merely hard bends.
Is there a way to automatically label the PI's even if they have an associated curve? (I'd like PI, PC and PT)Alternatively, can I only show markers at PI's without curves?
I’m wondering if there is a way to launch alignment grid view/alignment entities (attached) without the need to first launching “alignment”? This dialogue box is quite essential in editing the values of radius, degree of curvature and deflection angle for the selected curve.
Can I inherit the station from one alignment as the begin station for another alignment?
For example. Alignment 1 is 1000 ft long and starts at sta 0+00.
At sta 8+01, Alignment 2 begins and goes off in another direction.
I manually enter 8+01 for begin station Alignment 2. Life is good. Still in the design stage, and customer needs to modify Alignment 1 to avoid something. Now Alignment 2 intersects Alignment 1 at sta 8+15, but same N/E coordinates.
I manually enter 8+15 for begin station Alignment 2.
It would be better if Alignment 2 could inherit the begin station based on the new stationing from Alignment 1.
I imported Google earth surface (at eye alt 600m) to civil 3d 2012 and created an alignment of length 181m.
When I exported same alignment to Google earth , it showed the length as 190m ( the difference increases with increase in length of alignment) And also the profile view of the alignment in the Civil D & Google earth varies.
Im using Civil 3d 2012 and I couldn't find the function that I could offset the smooth curve alignment as shown on the attached pdf. I've looked through the offset alignments but those linear, curve-cube-reverse curve, curve-line curve doesn't work much.
Toolspace > Settings > General > Label Styles > Line
When I create a line label, one of the components available is “Direction Arrow”. This component is not available for “Curve” labels. I would really like to use C3D labels to indicate direction (I realize curves don't have a 'direction', but I don’t mind manually flipping and reversing the arrow). Is there any other label option in C3D that will draw a direction arrow for curves?
I'm working on a runway in Civil 3D 2011. I want to transition cross slopes along the runway. i.e. 1.5% for sta 1+00 to 10+00 and then transition into 1.0%. I thought super elevation would be the best way to do this (I dont want any actual super elevation, just transitions in cross slope). When I select the alignment and "Calculate/Edit Superelevation" i get the following message in the commanding line:
"_AeccCalcEditSuperelevation No superelevation data has been calculated for the selected reference alignment." It does not bring up the wizard.
My runway alignment doesn't have any curves and I'm thinking that's the problem. Is is possible to create super elevation without curves?
I am used to drafting surveys using Eagle Point Coordinate Geometry & Boundary Survey & I am now moving over to C3D, & I am trying to reproduce a boundary survey in C3D 2010, when it comes to Tangent & Non Tangent curves there does not appear to be any routine that allows you to create them in logical sequence or otherwise from the geometrical info provided on paper maps i.e. Radius, Delta Angle & Length, are there any survey techs on here that have been able to resolve this issue?
I have an alingment and profile, but I cannot use the layout tool to create a curve (vertical)...what I am doing wrong. I select the profile in profile view and right click to select "edit profile geometry" and get the layout tool bar but cannot select to draw a curve...
I have a file saved in autocad 2013 (dwg file extension) that contains level curves and points similar that an autocad civil 3d file and also have the layers. I want to convert this file to a civil 3d file for doing section of the curves whit the program. I don't know if it exist a method or not directly or indirectly.
I noticed when you put in vertical parabolic curves onto the profile tangents it will ask you if you want length or k.
however depend on which one you specify. it will hold on to that value when it comes to changing the tangent locations. for what i am doing now i want k by default. but accidentally i put in length because i just went through all the pi's quickly to put in the curves. but i see no control which allows you to control which type to hold. this is a property inside the vertical curve but it's not exposed to user. once you create by length that's it. until you delete the curve and re enter using k then it will hold k.
I haven't used Autodesk directly since Land Development 2i. I remeber being able to draw lines by distances and bearings with the numeric keypad. The bearing quadrant / DMS input was a fast way to draw parcels from an existing map. When I got to a curve, I remember being able to input radius and Delta angle. I've been trying to find those functions for months now. I found the Line by Bearing command and that works well as long as I don't run into a curve.
How do you draw a curve that's tangent to the previous line with the radius and delta angle? I've been going back to AutoCAD version 12 methods. That is, offset the previous line. draw a circle from the end of the offset. draw a line between the center of the curve and the end of the previous line. Rotate that line with the 12d34'56" format. trim the curve and erase the extra lines.
I've gone through all the curve drawing options in the home menu.I found the CoGo editor in the survey menu but it doesn't draw curves. It just draws a line from the beginning of the curve to the center and continues the traverse from the radius point of the curve. That's obviously either a serious misunderstanding of input or a program bug.
I need to reproduce an alignment shown on some plans. I have not had any luck finding a tutorial about how to re-create an existing alignment.
I have a page of plans, it shows the center line going from a back tangent, into a spiral, through a curve, and spiral to tangent. How do I create an alignment from this data?
I am a surveyor and I'm having a hard time understanding the alignment creation tools, in my data collector it is much simpler, you enter the back tangent and the end radius and the length of spiral and whale, but I'm trying to build a corridor, so I can stake the dtm.
I want to create a 3d ployline from a 2d polyline with curves. When I use the convert 2d polyline to 3d polyline command it places a bunch of vertices along the curve so when I go to place elevations on the vertices it takes too long. I want to be able to give an elevation at the pc and pt and have it place elevations along the curve from this info like it does on the stright lines.
Althout I have created the widening on my aliment and used a designer critery on my corridor, I can't achieve that the corridor use the widenig on the curves.
I need that the corridor generate the widening on the curves, I can't stake the corridor without widening.
I have a profile that has a 25' VC (please see attached jpeg) and want to put my PVI Station and Elevation but it doesnt fit in 40 scale (I need it to be in 40 scale). Is there a way I can only change the style for small vertical curves without changing my other styles?
Civil3d 2012 - is there a way to project standard autocad lines and curves to an existing surface to the lines and curves end up with the surface elevations? we are trying out that wants 3d lines exported in a dxf file. We have a surface and we have the lines...it's just that the linwork is all at 0 elevation.
I always draw a polyline to define my alignments. When selecting the polyline for the alignment, in the Create Alignment from Objects box, at the bottom, the default is to "Add curves between tangents". Where do I turn that off so default in NO.
