Isuspect you are referring to vector PDF creation? if you did not use "microsoft print to pdf" your issue might just go away: If I may ask, how old an AutoCAD version are you using that it does not have built-in PDF drivers?
I opened your PDF in Inkscape and selected the line and you can see there are three nodes on the end of the line, indicating that there are three sides to what looks like a line. For comparison, I opened a line work PDF and selected the line and you see only 1 node which means it's actually a line.
DWG to PDF then back to DWG conversions are at best a shaky prospect to rely on sadly. And relying on the very basic built-in tool is probably not the best if you need way more control. I suspect you will need to purchase a 3rd party better quality converter.
May I ask why this is three-way-conversions a business need of yours? I'm curious more than anything.
EDIT: I assume you do NOT actually have the original source DWG file, is that correct? Then ask the PDF creator for a DWG or DXF if you can, it is the better approach.
I've read the posts on how to get AutoCad drawings into Manifold. I see AutoCad can export to shapefile. However, I thought I'd try and do it on my own rather than submit a request up the line through 4 companies to the Autocad contractors to generate a Shapefile. Reading and searching, I found A9Converter which will convert AutoCad 2009 back to version 2000 which I can import into Manifold, but I lose all sense of projection. I don't know enough about projection to know what values to input to assign a projection.
I then tried the trial of CAD2Shape which worked great. CAD2Shape preserves the projection and the single line (a pipeline) I wanted lays down exactly where it should in my map. However, CAD2Shape costs $170USD which is relatively expensive for me for a program I'd use maybe 2 or 3 times a year. Any other options for infrequent import of AutoCad .dwg files? Thanks.
I generally use Map 3D which has an export to shape file feature. However using just plain Autocad, you'll have to save your drawing down to version 2000. I agree that saving down to this lowest level of Autocad is dumb. Hopefully this changes in version 9.
If what you're drawing in Autocad is projected to the correct coordinates/projection, it should not really matter if you are importing a shp or the dwg file. If you have other data in the Autocad file, you'll have to verify the projection too. It should import and be placed correctly. You'll have to assign the projection for the newly imported component.
Thanks everyone for your responses. Sunsong, thanks for the tip re: DWG Trueview, I have the 2010 version of TrueView and it converted to ver 2000 just fine. The same download from ACad also installed Design Review which seems to be another autocad viewer(?).
I'm at the receiving end of Autocad drawings (produced by another firm with which I don't have contact). Of the project team I think I'm the only one using GIS so I'm the odd person out and have to accommodate the majority working in the Autocad world.
Thanks for the pointer to openDWG. I've downloaded EveryDWG file converter. Which output format should I choose? I don't see the option for "open dwg format". I've been arbitrarily choosing Autocad 2000 format. I notice EveryDWG converter is a batch converter and converts every autocad file in the folder.
I normaly choose 2000 format (but other formats are also suported by manifold, ifi'm not mistaken), because it has worked well so far for me, you can try to use any sort of combinations that lead to a successful convert (using every dwg) and import of drawings (using manifold).
So you should be fine using this application, however i've also used the autodesk dwg trueviewer 2009 for converting files and it worked also on all major dwg files i needed to process. But on some cases i needed to use this open dwg tool to be able to convert them.
I need to open a received DWG-file into Designer, but never used that file format before. Unfortunately Designer doesn't support DWG and according to a six years long open request thread elsewhere on this forum no support would be expected in the near future.
Anybody here got a workaround to convert DWG to a vectorfile Affinity can import (Preferably SVG or PDF)? Any experiences with installable desktop converter tools either payed or free that can do this? Would it really be a one to one conversions, and/or are there differences in versions in the DWG fileformat I should be aware of (or things that could get lost during a conversion)?
[edit] Just did a quick test with AutoDWG (DWG to SVG Converter) to convert the DWG to SVG and than open it in Designer and that seems to work. But it's generating huge files with very inefficient conversions to vectors in the svg (could very well be inefficient in the original though). I'm not experienced in the DWG fileformat, don't know about DWG file format versions/compatibilities issues and at the moment I am not familiar with the original design as I can't view the DWG. So not sure if I am missing something in the export. So still open for experiences on the best workflow or things to take into account!
Thanks. I'm not on a Mac, but on Windows though. After a quick search I've found a site that has a 'DWG Tools' for windows, which looks like the 'official' website, but both shopsites it's pointing to for downloads actually don't have that software in their lists.
BTW As a graphical designer for many years I've never got a customer ever before coming with this file format. I've found by searching that it's the main format for Autocad and it's obviously a well known format in the area of cad-systems. And obviously it's a propriatory fileformat by Autodesk. But are there, next to the cad world, also professional graphical designers working with this file format when using only graphical (creative) design software? Or is this pure a main thing in the CAD world?
But are there, next to the cad world, also professional graphical designers working with this file format when using only graphical (creative) design software? Or is this pure a main thing in the CAD world?
DWG is as you say a propriety file format from Autodesk and so it is pretty much just in the CAD and 3D modelling world. Autodesk also created DXF which is an open format for easier file exchange between the CAD and plain graphics worlds, and no Affinity applications won't read those either.
I saw that Inkscape is able to directly import DXF, so not sure if everything imports 100%, but guess it will and should as it's an open format, so we could than import DXF in Inkscape, save it to SVG and open the SVG with Affinity without (much) issues I guess.
Is 'plain graphics' a wellknown term used for what I would describe as 'graphical design', normally done with tools like from Adobe, Affinity etc., like graphical design, webdesign, UI design, illustrations etc. as being somewhat the opposite of 'technical design' like CAD, or via another route 3D graphics like made with Blender, Maya, Max and such? Or is that just a term only you use? For me it would be nice to know a term others understand immediately to address the type of user instead of fiddling around with descriptions like 'creative' and 'graphical' (which they all are in some way).
GNU LibreDWG is a free C library to handle DWG files. It aims to be a free replacement for the Open Design Alliance Drawings SDK libraries. Be aware that, since libreDWG is a work-in-progress, it lacks support for some DWG entities.
Downloading and unzip the appropriate pre-compiled Windows binary. Place the executable in the OS search path, os.getenv("PATH"), for automatic detection (introduced in version 0.21), or set the path manually. See Import Export Preferences.
To prevent problems you must use LibreDWG package compiled for the installed openSUSE OS distribution. LibreDWG is typically installed with YAST (abbr. Yet another Setup Tool), the Linux operating system's setup and configuration tool.
The more experienced user first gets an overview of possible packages provided.Note: openSUSE has several options to choose from when downloading LibreDWG. To view these options, visit Survey of provided LibreDWG packages on openSUSE.
The ODA File Converter is a small freely available utility that allows to convert between several versions of DWG and DXF files. FreeCAD can use it to offer DWG import and export, by converting DWG files to the DXF format under the hood, then using its standard DXF importer to import the file contents. The restrictions of the DXF importer apply.
QCAD is a well-known open-source DXF-based 2D CAD platform. It also offers a paid pro version, which is basically the open-source version plus support for the DWG format. When buying the pro version, QCAD also includes a DWG to DXF conversion utility that can be used by FreeCAD.
If the utility is not found automatically by FreeCAD after installation (introduced in version 0.21), you need to set the path to the bash file (Linux and macOS) or batch file (Windows) manually. See Import Export Preferences.
Installing the CADExchanger Workbench allows for working with DWG files through integration with the paid commercial file converter product CADExchanger. Just follow the instructions in the GitHub repository. You can discuss this workbench on its forum thread.
There is also DoubleCAD XT ( -xt-v5). The program is free for personal and commercial use. It requires a free sign-up to receive an activation code via E-Mail. This Program is windows-only. Note: it does not seem to have been updated for years.
It is important to note that there is no difference between the contents of a file saved in DWG or DXF formats, provided it is the same version (ex. DWG 2014 vs. DXF 2014). Both formats are maintained by Autodesk, and they both support exactly the same features. The difference is that DWG is closed (machine-encoded) while DXF is open.
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