Comments on: EPANET Programmer’s Toolkit

By: Luke

Luke — Tue, 12 Jun 2007 18:27:31 +0000

I’m designing a geothermal community ground loop system. It’s a closed loop where I am just supplying heat pumps with water for their heat exchangers to cycle. My question is should I represent a home with a “node” or a “pump”?

By: Priya

Priya — Wed, 08 Nov 2006 17:03:37 +0000

dear sir
my project is determining the water quality of the distribution system. especially determining the concentration at each node. i have some set of equations to find the concentration. i have drawn the network and gave all the mandated inputs. i have run the analysis also. in my analysis i am getting concentration level at the initial node(reservoir and the first node) for the others i am getting 0Mg/l. i couldnt trouble shoot the problem. i dont know how to write c code also. whether to write in c editor or any editor inside the tool kit. when i import the network an input file is created. how to take input from this file and link with c code? plz sir help me for my futher work. i have great expectations for my project. expecting for your reply
thanks and regards
P.Priya

By: Moisés

Moisés — Tue, 31 Oct 2006 01:54:50 +0000

I am open and build the epanet2 source code in Delphi7, it’s work fine, however a save file in a project of my epanet don’t open in others versions of epanet (english and portuguese). Only when i use caracters “ç á é í ó ú” in descrition of pump. I think that code page language or delphi are different of mine. I don’t know that do for fix this.

By: Marco

Marco — Thu, 05 Oct 2006 09:47:29 +0000

Hi Cynthia and Tongirri!
I hope that these advices will help you, I met the same problem and spent a week to find the solution!!!
These are the step I followed using Microsoft Visual C++:
- include epanet2.h in your source file (.cpp);
- compile the program;
- link the library epanetvc.lib in this way:
on the menu bar select
project —> add to project —> files…
To be sure that the library has been linked, control in the workspace, in “fileview” if there is the file epanetvc.lib.
- Now you can build the program and then execute it!!

If you’ll meet other problems write, I’m here!!

Bye

By: Cynthia

Cynthia — Wed, 07 Jun 2006 21:04:25 +0000

Hi!
I have the same problem as tongirri, I keep on getting the error LINK for unresolved external symbol. I’m using VS.NET 2003 with C++ as a programming language, I’m including the epanet2.h, I read in another forum that I have to use the epanetvc.lib instead of the header file.

Can someone please help me????

Thanks

By: tongirri

tongirri — Wed, 08 Mar 2006 08:53:06 +0000

in my code
i write code follow programmer’s toolkit in page “opening and closeing the toolkit” and “ENsolveH”

after buid
VC show

——————–Configuration: test - Win32 Debug——————–
Compiling…
test.c
Linking…
test.obj : error LNK2001: unresolved external symbol _ENreport@0
test.obj : error LNK2001: unresolved external symbol _ENsolveQ@0
test.obj : error LNK2001: unresolved external symbol _ENsolveH@0
test.obj : error LNK2001: unresolved external symbol _ENclose@0
test.obj : error LNK2001: unresolved external symbol _ENopen@12
Debug/test.exe : fatal error LNK1120: 5 unresolved externals
Error executing link.exe.

test1.exe - 6 error(s), 0 warning(s)

————————————————-
i see example2-c in programmer’s toolkit
how i will call function “HydrantRating ()” in main program

void main()
{
.
.
.
HydrantRating (?,?,?,?);
.
.
.
}

Thanks you

By: Elad Salomons

Elad Salomons — Wed, 08 Mar 2006 05:06:27 +0000

tongirri,

What error do you get?

Please see this example:
http://www.water-simulation.com/wsp/bb/viewtopic.php?id=238

By: tongirri

tongirri — Wed, 08 Mar 2006 03:45:53 +0000

i need example code because i writecode not work
my file in c:\EN\
in folder EN have file
epanet2.dll
epanet2vc.lib
epanet2.h
int1.inp
test.c

this is test.c code

#include
#include “epanet2.h”
void main()
{
int errcode;

errcode = ENopen(”int1.inp”,”int1.rpt”,”");
if (errcode>0)
{
printf(”cann’t run ENopen”);
ENclose();
return;
}

ENsolveH();
ENsolveQ();
ENreport();
ENclose();
}

please sent example code to my e-mail

tongirri@hotmail.com

By: Elad Salomons

Elad Salomons — Wed, 01 Mar 2006 20:14:40 +0000

Manuel,

If you ask a specific question I can try and help

By: Manuel

Manuel — Wed, 01 Mar 2006 18:04:20 +0000

I have a similar problem that LEKSHMIBHAVANA’s problem,
I desire implementing heuristic algorithms with the EPANET’s input/output, but I don’t know how make this.

Thanks and… sorry for my english

Manuel