AutoCAD Civil 3D :: How To Find Normal Depth In Natural Channel
Aug 21, 2013
I was recently trying to find the normal depth in a natural channel to use as an outfall water surface elevation in SSA. I double checked the normal depth calculations using the Express Add-On in Civil 3D. I found that while the normal depths correlated closely for channels with a single roughness coefficient, they varied considerably if a composite roughness coefficient was used for the left and right overbanks. This leads me to believe that composite roughnesses are being calculated incorrectly in SSA. I would like to use SSA for floodplain analysis, but am unwilling to do so until I have confidence in the calculations.
If I have two images, one is a texture map and the other is a normal map, how do I essentially paste the normal map into the alpha channel?
The stuff I am importing into (OpenSimulator) uses a single image to put texture and normal map information onto an object but so far I can't see anywhere to create the alpha channel.
I am not using the alpha channel for transparency, which seems to be a source of confusion (elsewhere). The thing is I CAN use it for that (transparency I mean) simply by making part of my image transparent (This is splendid by the way, and is yet another reason why I adore Paint.Net), this implies to me there are alpha channels or that the transparency thing is something different.
How can I get the channel subassembly to attach to the assembly insertion point at the channel flowline marker? I need the flowline to follow my profile elevations.
I am trying to find the channel tab in PHotoshop Element 11 to find the alpha layer for my .dds image. A tutorial i'm following that a private user has posted on the web, in there version of photoshop it shows a channel tab as well as the layers but in my version 11, it shows the layers but not the channels. How to access channels in the 11 version?
Am reading Kelby's LR 5 book page 162 + Cannot see any place where I can click to see the individual channels adjustment pop up to select chanel. He even has it circled in the illustration but I don't have anything like that in the Tone Curve panel What am I missing, I'm in Win 64K
Would be interested in a strategy for a varying depth overlay, i.e. where the overlay assembly follows a centerline design profile rather than a pavement depth up from existing grade. Then the trick would be for the software to calculate the asphalt volume between the new top surface and the existing roadway surface.
I have two surface ( OG surface and Gravel LIFT ), i need to have a table that Show me Depths range between those two surface with a color range, in a table and also to be able to see it in the the top surface.
Basically, In every Spot of the surface, need to represent a Depth range between the OG and the gravel surface by a specific Color.
For a surface: I would like to a boundary above a inlet point that is 3" deep.
I would like something like catchment area but the ability to specify a depth distance. Or specify a depth in the water shed analysis in the surface properties.
The only way I know to do what I want is user defined contours for each elevation. Is there a better way to do get a specific shed area for a depth?
I have a road that I am engineering and have set up my subassemblies using the daylight standard. But i would like to force a cut section until the fill gets to 2'. so that when i have 2" of fill it will still cut my ditches.
I'm currently setting up a band set and want to include a band "pipe invert depth" i.e. basically trench depth.
There are properites in the band label style composer for "pipe invert level" and for "cover" and for "pipe diameter" but not pipe invert depth.Is there a way to display the pipe invert depth relative to the reference (design) surface/alignment?
A secondary question to this is can you use basic arithmetic in the band label style composer? eg pipe cover + pipe diameter?
I was wondering if it was possible in c3d to label points in the fashion often used for nautical charts in which each sounding (elevation) point is labeled with the integer component of the number followed by the decimal as a subscript. For instance 7.3 metres depth would look like: 73
Also I've seen charts with depths as fathoms and feet so 64 feet depth would be 104.
I was wanting to know if there is a way stop part of a projected object from displaying if it is to far away from an alignment profile cut to be of any use.
I know in Revit you can set the deep of view from the section line not sure if you can do anything like this in Civil3d.
Any hydraflow calculates depth of flow and spread at sump inlets? Does it assume that the entire flow is coming from one direction (similar to an on-grade inlet)? Or does it make an assumption about how much flow is coming into both ends of the inlet?
I had this error show up two days ago. My machine maxes my memory out at 12gb when I try to open this file. I've tried to do a recovery, open the .bak and .sv$ files, and insert it into a new drawing but none of this worked. I was able to open it in True View and convert it to another DWG file. Doing this, I saved all my line work, but lost my models. I recreated my drawing from the line work and everything was fine up until now.
I am getting this error again but I can't recover it. I can't do the True View thing this time either. Everything on this project is gone now.
I don't know if AutoCAD Civil 3D just has serious issues, or if it is our network. C3D constantly processes and starts acting strange after an hour or so of working with it. Things like Duplicate sites, or not being able to move feature lines from one site to another.
Our network though is running out of space. We only have a 1Tb server, but in Windows Explorer, the bars are red with only 28.5gb free, and I'm sure it hasn't had any maitanance like defragmentation in a very long time.
Civil 3D 2013 Windows 7 64-bit Xeon W3550 3.07 GHz Nvidia Quadro 4000 12.0 GB RAM
I am trying to create a custom subassembly using SAC 2012 that will place a 1' deep ditch at the bottom of the slope in a fill condition. The trouble I am having is how to hold a consant 1' depth on the backslope and vary the foreslope since the daylight offset and elevation is variable depending on the slope of the existing ground. I need the attachment point to be the edge of the shoulder so it seems like a loop that varies the foreslope length would be required but loops are not allowed. I will also have the option to target a profile but I also need the ability to hold a constant ditch depth.
I created a volume surface between the as-built and design surfaces, now I would like to show the points that display the cut/fill depths between these two surfaces. I tried modifying the surface property of that volume surface but doesn't seem to offer what I want.
Our company has recently purchased civil 3d and im in the process of learning it. I was wondering if there is a way to transfer the normal autocad customization file over to civil 3d and if works. I re-did my hot keys and they dont work either.
I was thinking of having a 2d workspace and a 3d workspace as well.
Simple program that will adjust invert elevations of a pipe based on the cover depth.
I have a existing uitility maps that only label the the cover depths. I have to show these utility crossings in my profile views. I have different rules set up for various depths when laying out my crossing pipes in plan, but I need the ability to to edit the various cover depths more quickly. I am using Civil 3d 2012 only.
It appears when we attempt to open the file then C3D crashes.
Modeling Operation error: Attempt to evaluate a plane with zero normal.
One of my users got this error in a drawing with about 8-10 fairly complex grading objects in it. I had told him not to leave them as grading objects but he was convinced he could make it work.
HP 4600 4 GB Ram Intel Core 2 Duo 2.66 ATI FireGL V5600 (8.453.1.3000) Windows XP PRO (SP 3) 2008; (All SP) LDT, MAP 3D 2009; Civil 3d 2009 Update 2 Version 3, Map 3D, Raster
I'm preparing for our office wide install of Infrastructure Design Suite 2014 so we can begin training/using Civil 3D 2014.
I’m reading through readme file for the Architecture-MEP 2014 Object Enabler & noticed that it’s installed as part of the normal installation of all AutoCAD 2014 based products, including Civil 3D…woohoo! Unfortunately, the Structural & Plant OE’s don’t appear to have a readme file. Are these also installed as part of the normal installation of C3D 2014? Or will they need to be installed separately?
I want to cut a channel through a existing surface; bottom width: 5 feet; at elevation 1950 and side slope 1:1 (45deg) up to existing ground.
What I am doing right now is create a feature lines 5 feet wide, at el 1950 and use grading tool to project it to existing ground with side slope at 1:1. What i am doing is correct?
I migrated from AC3D 2010 32-byte to AC3D 2012 64-byte recently. When I migrate my projects to 2012 and open the old 2010 drawings in 2012 I lose the surface lines out of my section sets. It doesn't seem to bother the profile views, only the section views.
Is there a way to work around this problem w/o having to regenerate the section views?
I'm trying to create a ditch / channel with a 4 foot wide base and 4:1 side slopes. I was going to create one using a feature line and inserting it to my design surface as a break line. Is there an easier way or better process I can use to create this?
