AutoCAD Civil 3D :: Choose Best Hydrology Method Based On Available Data / Desired Outputs?
Nov 11, 2013
I am in case to model a stormwater network contain ditches with irregular sections, open channels and closed pipes in SSA. I do not have access to IDF curves for the Project area. We got a weather station in site which is giving us continuous data from last 3 months till now. At this stage we just decided to use certain Rainfall intensity (mm/hr).
We got some check points to check the turbidity. What I need to know after analyse is i.e what is the flow at these points at 6:00 pm if we experience the rainfall from 3:00 pm to 4:00 pm with 20 mm/hr rainfall intensity.
So my concerns are with these available basic data, which method is suitable? and as long as we approach more valued data from in site weather station then which method will be the best. If i want to input time of concentration manually for each subbasin then how can i input TC of pipes or channels in SSA? URL....
where MATT said: "SSA does not calculate the Standard-Step method. The Rational Methods (including modified, and DeKalb) all compute the runoff to the inlet or junction. As soon as runoff enters the system, continuity and momentum calculations take over. SInce you are using Steady State Qin = Qout, so no routing occurs on pipes."
how do i understand the flow in certain points i.e 2 hrs after the rainfall is finished if I can not define TC for pipes or channels?
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Feb 28, 2012
I'm having some problems using some existing MX highway design data I've brought into Civil3D using the genio import extension. Basically I can bring in all the alignments that I want to be able to use but am unsure where to go next in terms of creating a proposed profile line. My goal is to be able to pull out long sections and cross sections based on this data. Ideally I'd like to avoid doubling up on work in MX and Civil3D as much as possible.
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Nov 18, 2013
I need cross section information of a creek for a Hydrology program (DRAINS in Australia) and need to extract this from a surface I have created in Civil 3D. I require the Chainage and Level for a profile which represents the creek cross section at several specific locations. The information is essentially the data bands in a Profile which I can create, however I cannot see how to obtain this information in a form I can use.
the format of the data can be copy and pasted into Excel from which I can directly import the information into the software.
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Mar 4, 2012
I have been outputting surfaces from Civil 3D 2012 using the LandXML export function. Some of the XML files that are output the data is on a single line and some of the outputs are on multiple lines.
Not a major issue as they both import back into C3D ok but within my office we edit the XML file slightly inorder to get it into another software package and require the multi line format.
The only difference I can see is the size of the data used to create the surface! All drawings have the same LandXML export settings..All surfaces have been created using a combination of point groups, breaklines etc..
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Mar 28, 2012
How to choose the attribute or field data from a list?
When using the “title block”, attributes and fields to better control the information that belongs to the drawing, then it worth to have a feature that allows selecting this information from a LIST.
For example, if we need to specify “location” of the project, then it is better to have sort of list from which we can select the location of the project the same we do it in the Excel (as shown in the screenshot below).
Is there such feature in the AutoCAD? To choose the information from a list?
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Feb 23, 2012
I use adobe photoshop lightroom 3.6, earlier i was able to export photos to my desired folders in desired format but i am not at all able to export any photos at all!
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Jan 18, 2012
What is the data type for the second parameter of retrieve dimension method? Coz it's optional parameter.Retrieve(ViewOrSketch as Object, [DimensionToRetrieve]) as GeneralDimensionEnurator
We've tried to put the parameter name of the model as parameter but error had occured "DATA TYPE MISMATCH".Here's our
Call osheetDetail.DrawingDimensions.GeneralDimensions.Retrieve_(oTopView,oModel.ComponentDefinition.Parameters.Item(10).Name)
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Apr 16, 2013
The company I currently work for imports excel data via the paste special / link method. It works fine, however when i open obviously or plot through sheet set manager specifically and someone is in the excel file i get the read only message and have to click the box in excel to either read only or notify. How can i run plots and not have to check that box?
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May 17, 2011
I have polylines that when selected, under properties it lists Object Data for the selected polyline. There are like 10 categories. This drawing is actually creeks in a county and they have object data connected to them where some are "a" some are "b" classification and I want to select all of the "a" polylines and put on a diffrent layer.
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Jun 4, 2011
I design all of the architectural metal used on most project homes being built in Sydney at the moment.
I draw up balustrade and screening etc.
Basically what I have is a huge collection of complex dynamic blocks that I insert into my drawings, I then change all the variables to suit.
These drawings are then dimensioned, and a parts list manually written out based on the lengths etc of each type of material.
All of these drawings are exact reproductions of what is produced on the factory floor, so it is quite easy to identify the parts, but rather painfull to manually write out a cutting list.
I'd like to add attributes and/or fields for material type and length to each of these dynamic blocks, which update as the blocks are manipulated to the required sizes.
where I get stuck is that there are multiple drawing methods used to create these blocks, and I cannot seem to figure out exactly what I should be naming, and assigning length fields too, or even how to extract or what to extract!
When I extract the data, I get a mess of conflicting and confusing information that is impossible to sort correctly, as I can use the dynamic parameter field for some, but not others, and on others it is a simple line, but on others again they are polylines and the length is useless to me.
I have tried to creat a block with an attribute for each and every individual part, but when I combine these into a complex part and try to assign dynamic parameters as a single dynamic block, the previously blocked and named parts wont behave correctly.
Im not sure if im making much sense here, but in my mind it all seems simple enough, I just cant get it to actually work with my exsiting blocks...
All im really after is a simple BOM, for example, I have a dynamic block with the Style code A0-1, when this is inserted I change 3 different lengths depending on the job. This style code is made up of several components such as a 40 mm square post (coded 40SQ), an 80 sq baseplate (coded PF2) and a 50 x 25 mm handrail (coded HR5025).
I need to extract a length for the 40 sq post, a length for the 50 X 25 handrail and an item count for the baseplate.
There may be 25 of these in a drawing, all at different sizes.
The dynamic block works perfectly for drafting, but not so well for data extraction.
There are over 1100 of these dynamic blocks, created over the last 2 years, and the only missing piece in the drafting puzzle is the extracted cut-list to save a large amount of time, and I just cant get it working.
Is there a methodology I need to learn here? will I need to re-create these blocks to allow for extraction?
I have explained to my boss the theory behind all of this and he is keen for some working examples that the monkeys on the shop floor can read and understand, and Im stuck creating an extraction template that can work, even if just for proof of concept that I can refine over the next few months.
I know ACAD can do this, I know my brain has all the data, I'm just not getting the ACAD>BRAIN interface working here.
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Nov 15, 2013
C3D 2012
I have a number of Sites in my drawing. I want to be able to set a Site current (in LISP) so that when you create or draw a feature line, the site is set to the desired value. I haven't seen a variable or setting for this.
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Dec 7, 2013
I'm new in Civil 3d, just learning by myslef by following tutorials, I've a provlem, after creating existing profile, when I'm going to create design profile I want to draw tangents(VIPs) on my desired chainages and elevation by given command, specify start point and I write 0,376.00 0 means chainage 0+000 and 376.00 is elevation but civil 3d shows a message "point is ouside profile view try again.
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Oct 12, 2008
So here's the problem. I managed to delete a photo from my digital camera. Now I need it back. I recovered the file, but strangely, it's not actually recovered.
Now, I know file recovery is hit and miss, and since this was a photo from the camera itself (not a memory card), things get more complicated. Anyway, I manged to get back the photo...sort of.
The file I now have is 160x120, instead of the 3040x2288 it should be. Now, if this was an actual thumbnail, I would expect the file size to be pretty small. Instead, this little 160x120 image is 2.16MB. This leads me to belive that somehow I can get the real photo (or at least something better than the little image) back from the file. There has to be a reason for that much extra data, right?
Does anybody know how to do this? I figured Photoshop might have some advanced sort of raw file reading or some sort of rebuilding/recovery. Alternatively, someone could point me to a good recovery program (or even some other way to do this).
If it helps, the camera that the file came from is an HP Photosmart M627.
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Jun 20, 2011
I am hoping to utilize GIMP to map the results of a research project. Is it possible to color defined layers based on a data set? For example, is there a way to use GIMP features to edit an Adobe Illustrator editable map by importing an excel document containing two columns: one column containing the names of the defined layers and another column containing the color value in hex code. Based on this document, could I use GIMP to easily apply the colors to the layers?
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Mar 1, 2004
I have a map that I have scanned that has all the buildings and all the apartment numbers in each building. I have an SQL database that has whether or not each apartment is rented. I would like an automated way of highlighting each apartment number based on whether it is rented, has a depsoit, is vacant, etc. all in different colors. Is this possible with Adobe Photoshop or any of their products?
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Sep 5, 2013
I'm setting a layout - I choose plan view for my viewport, save the template and .... I have set it again to unspecified.
Civil 3D (2013) how much you have to improve....
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Aug 9, 2012
I have a .dwg file with an AT-LCC projection assigned to it. There are some .shp files connected to it.
Can I choose the projection of to-be-imported-points when I import some laserscan-files in ASCII format? So I can tell AutoCAD: these points are in MGI-AT.AUT-Central/GK projection, please convert them to my desired projection.
There is a method which takes much too long:
open a new document assign the origin-projection (here; MGI-AT.AUT-Central/GK) to the fileimport the pointsexport the points as .shp file, define a projection-system conversion to target projection (here: AT-LCC)open the file with the target projection assigned to it (here: AT-LCC)import the .shp file
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Sep 20, 2013
SSA rational method. I have to compare results of rational method between SSA and another product. Plain rational method, steady flow, Darcy-Weisbach. Times of concentration (TOC) are manually defined.
I played a bit with the units, formulas, IDF curve is defined as pair of values time/intensity. Seems that I achieved something. Results are more or less similar, but there are some differences. After playing with both programs, comparing in Excel, think that I found what is different.
So, I have very simple example, of one channel with catchment areas. All areas have the same runoff coefficient – 0.8. Pipe diameters are constant (500). The whole analysis is restricted between 5 and 10 minutes of rain duration (5 min-397.22 l/s/ha and 10 min – 321.53 l/s/ha). I converted IDF to mm/hr. So I have the next example:
[picture in attachment]
In theory, what I learned about rational method, there is next definition:
Intensity from IDF curve is defined by TOC. TOC is defined by sum of „entrance time“ (which is defined by shape and size of catchment area) and sum of upstream flow times. In my example I defined 5 min for every area.
So, for example for pipe nr. 3, TOC is calculated:
TOC_3 = Entrance time for area 3 + Tflow_1 + Tflow_2 + Tflow_3
For example:
TOC_3 = 5 min + 0.67 + 0.45 + 0.51 = 6.63 min
That TOC_3 (6.63 min) is base for reading appropriate value of intensity (I_3) from IDF curve. The flow in pipe 3 is then calculated:
Q_3 = I_3 * (A1 * k1 + A2 * k2 + A3 * k3)
This is the way how I learned rational method. But results between SSA and another product (which works in a way explained above) are different. Differences increase downstream.
After playing with results in Excel, I found out that SSA does not summarize in TOC all flow times upstream. So TOC in SSA is calculated simply by initial entrance time and flow time in specific pipe:
TOC_3 = Entrance time for section 3 + T_flow_3
So, there is no time added from T_flow of pipes 1 and 2. Seems that it is major difference which leads to final results differences. I tried to understand all options of SSA to find possibility to add upstream flow times, but without success.
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Oct 31, 2013
C3D 2012. I am trying to get the distance from the start of a featrue line to a selected point. My object is "FLobj" and my Point is PT1. I am using the method Get2dDistanceAtPoint. This is the line of code.
(vlax-invoke-method FLObj 'Get2DDistanceAtPoint pt1 'pDistance)
I keep getting "too many actual parameters".
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Jan 2, 2013
I'm new in civil 3d road design so my question may be basic.when i prepare a corridor and proceed to get cut and fill it appears as zero.i think i made some mistake at a stage when in section line we decide surfaces..step wise from section line selection to cut/fill calculation also give me the general concept regarding selecting surfaces during cut/fill volume calculation?
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Mar 15, 2012
How to choose “no color” for the line extending between the contours labels?
I labeled the contour lines but sounds that it draws a line between them. Is there a way to hide this line to give it “no color” to have a better presentation for the entire map?
Software: AutoCAD 2014, AutoCAD C3D, AutoCAD M3D, Revit
Windows 7 (Ultimate 64 bits),
Firefox 20.0,
Kaspersky 2013.
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Apr 24, 2012
I have a master shape file that contains parcel ID, owner, tax info., etc. I have another file ( access 2003 -open to better file format suggestions-) which contains parcel ID and a "yes" or " no" entry for whether or not the parcel needs a new water meter. All I want to do is add the water meter information into the other shape file. This would create one shape file with one table with all the information that I need.
Ultimately I will use the information to do a map query and find out spatially where i need new water meters.
Right now i have the master shape file connected though the “Connect to Data” feature. I also have the new data added to the drawing though the Data sources------>attach under the “Map Explorer” Task pane. I attached access file (ver. 2003 .mdb) which has two columns “Parcel ID” and “Meter”.
I right click on the shape file under the display manager and select”Create a Join;” however my water meter table is not listed as an option. Will this not work?
Plan B - I tried to Create and connect to the access file as an ODBC connection. Followed this guy’s directions to a T [URL]. But when i populate my table under the fdo connection the column headings exist ( “parcel ID” and “Meter”) but the actual data is missing. Am I missing something important?
Note: I am running c3d 2012 on a Win 7 64 Bit machine. I also removed office 32 bit apps and installed 64 bit apps to see if that would solve the problem. No go.
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Aug 29, 2013
I am trying to see what is in the Xdata of a label object:
(setq labl (car (entsel "
Select label: "))
vlabl (vlax-ename->vla-object labl)
)
GetXData is a method of the selected object I am calling vlabl.
I can't figure out exactly how to get this to work. The method list says GetXdata(3).
When I try
(setq xdater (vlax-invoke-method vlabl 'getxdata x y z))
I get an error: error: ActiveX Server returned an error: Parameter not optional
If I try
(setq xdater (vlax-invoke-method vlabl 'getxdata 5 5 5)) ;shouldn't this retrieve the values of the array as double double double?
I get nil. No error, just nil. Does this mean there are no values in the array or am I missing a step that lets me read the array?
I was able to convert from variant to safearray for another routine I wrote yesterday, but that variant came from a get-property, not a method. As you can tell, I have hit a wall.
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Sep 27, 2013
I´m trying to modify slopes for BeginAlignment.
This is my code block but it doesn´t anything.
#region peralte inicio alineación y final alineación if (variables_globales.peralteTransversal == false) { //añadimos el peralte para el p.k=0 y para el p.k final si se trata de rectas. if (variables_globales.ListaentitiesAlign[0].SubentityType == AlignmentSubEntityType.Line) { //abrimos la base de datos por si tenemos que escribir. Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument; Database db = doc.Database; Editor ed = doc.Editor; using (DocumentLock docLock = doc.LockDocument()) { using (Transaction trans = db.TransactionManager.StartTransaction()) { Alignment align = trans.GetObject(Id, OpenMode.ForWrite) as Alignment;
[code]....
variables_globales.ListaentitiesAlign is a list of all subentities of Alignment and I check if the first subentity is a line.I use switch but you don´t have use it.
Autocad Civil 3D 2014 +SP1
Quad Core Intel i7 3770-cpu 3.40Ghz.
ssd samsung 840 pro 512gb+ssd samsung 840 pro 256 gb+1tb hdd
32gb RAM 1600 Mhz.
nVidia Quadro 2000.
Win 7 Pro 64bit
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Apr 10, 2013
say you make some parcels in your project with custom data fields like: id_no, permit_no, acres_served etc. you attach an agency provided shape file via an fdo connection that has many fields of information like above.
when you right click on your parcel and do parcel properties you get a tab that lets you input the custom parcel data.
lets say you print an fdo map label showing, say, the id_no, provided in the shape file. Then in your custom parcel properties for id_no you type that in.
is there a way to make an expression to put in the other custom parcel properties that will read, say, the permit_no(id_no) from the fdo like and put that information in the custom parcel property field?
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Jun 7, 2012
I'm having problems getting super elevation data to transfer to different drawings by means of an alignment data shortcut. I know alignments hold the super elevation data so I've gone into my alignments data shortcut, input my super elevation data, saved and closed. Now when I open my finished grade drawing, reference in my alignment and profiles, then create a corridor from that information, my super elevation didn't transfer with the reference.
I pulled cross sections and it appears is has no clue there is any super elevation data. Also, I tried bringing it directly into the drawing I'm doing my corridors in and it erred saying I must be in the parent alignment drawing. Data shortcuts are pretty much useless to me if super elevation data doesn't transfer.
64 bit Windows 7
Intel Xeon (R) @2.8GHz
6.00GB Ram
Civil 3D 2012
Civil 3D 2012
Intel(R) Xeon W3530 @ 2.80GHz
6.00GB Ram
Windows 7 Professional
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Sep 9, 2011
i have created a data band in profile view that should show a created profiles elevation, but some of the the data fields are missing irregulary. Also in the data band that shoud show the diferenece betven the tow profiles - EG and the new profile the data is missing. The EG profiles data and the surface are ok all is shown.
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May 3, 2013
I've just installed Civil3D, 64-bit on windows 7(running on bootcamp) and am trying to insert a georeferenced raster image but have encountered some issues.
1. "Home tab>>Data panel>>>insert An Image" - The data panel is missing and it's also not found in "customize palettes"
2. Trying the data connect route does not work either: Display manager>>>Data>>>Connect To Data - There is no 'Data' option and I cannot connect to Data.
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Nov 18, 2013
[URL]
You said that there is no need to flatten, but each method I have tried does not produce a polyline with curves.
I tried:
survfig.BaseCurve
survfig.BaseCurve.GetProjectedCurve
survig.BaseCurve.GetOrthoprojectedCurve
If if manually flatten the figure using a dummy suface with the AeccFeatureElevsFromSurf command, the polyline derived from survfig.BaseCurve will then have actual arc segments.
Is there another method or a way to flatten the figure programatically first?
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Oct 23, 2013
In my corridor I have used superelevation. In a horizontal curve which has a cross slope of 4.5%, I have an intersection. To allow for a smoother ride through a few lanes in the intersection I want to change the cross slope from 4.5% to 1%. I was planning on doing this by using a Outside Lane Elevation Method of a Profile. However, it appears that my super has precedence over my profile. Is there are way to make this work?
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May 14, 2008
Is it possible to have pipe flow direction method set to "by slope" by default when we creating new pipes?
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