I hope you are doing well. I am a student of Civil Engineering and was given a task to design a water supply network for a colony using WaterGems so I imported the layout of the colony in (dxf) format in WaterGems using model builder when I tried to make a network of pipes, I get to know that the length of the each pipe is way more than it should be. I tried to get help from the software help center but found nothing. So it is requested here to kindly let me know how to set the scale of the drawing in WaterGems?
First of all thank you so much for your prompt reply. I would like to tell that I imported the dxf file in the same units in which the layout of the colony is done i.e. US customary units, using model builder and I was supposed to make the pipe network after importing the file of colony's layout. But in imported layout the width of the road is way more than the actual width in Cad file of the same colony for example the width of the 30 ft road in Cad file is 350 ft in dxf format imported in WaterGems that is why my lengths of pipes are being shown way more than they should be. I am unable to make it correct till now although I have tried many times as per the instructions provided. I am attaching some pictures of the problem and requesting to let me know how to solve this problem?
Ahmed Fraz said:I imported the dxf file in the same units in which the layout of the colony is done i.e. US customary units, using model builder
Can you confirm that this means you selected Feet as the Coordinate Unit in the first step?
Did you try adding the DXF as a background layer?
Please provide a copy of the DXF and model: Sharing Hydraulic Model Files on the OpenFlows Forum
Jesse DringoliTechnical Support Manager, OpenFlowsBentley Communities Site AdministratorBentley Systems, Inc.
Yes Sir, I selected the options while importing the file by both the methods, using background layer as well as using model builder. I am attaching these pictures for reference moreover I am also attaching the DXF file and Model file.
7840.Peace City-1.dxf 3630.Water Supply Design Report (Peace Valley).wtg
Ahmed, it appears you only attached the .WTG. Per the article, we would also need the .WTG.SQLITE file in order to open the model (compress both into a ZIP).
I also noticed from your screenshot that you appear to be using WaterGEMS V8i, which is an old version that we do not support anymore per our Support Policy.
I tried importing your DXF with ModelBuilder, using:
I then added the DXF as a background with feet as the unit and it aligned exactly with the imported pipes.
When I then open the DXF in AutoCAD itself, I do see what appears to be shorter lengths noted in the properties of pipes, but that is because the units are actually inches, not feet. (notice they are off by a factor of 12 which is the conversion between feet and inches). Use the "Units" command to see this.
If you select "In" (inches) as the coordinate unit in ModelBuilder, the imported network will have pipe lengths that match what you expect. I have added a note about checking units to the following related article:
Importing an AutoCAD or MicroStation CAD file using ModelBuilder
Answer Verified By: Sushma Choure
Thank you so much for helping me and giving me your precious time. My problem got solved. My classmates were also getting the same problem and we were stuck and worried about this task as the deadline is near so once again thank you for helping me out.