weppy

toy web viewer for eppy

You can view the files but cannot edit it yet.

Shows some of the interconnections between the idf objects

Playing with weppy

• open one of the idf files (5ZoneReturnFan.idf is a good one)
• click on CONSTRUCTION
• click on one of the constructions
  • click on the "?"
  • click on "docs"
  • click on "show links to other objects"
    • follow the new links
    • go back
  • click on "run functions of this object"
    • go back
  • click on "Show objects that mention this object"
    • follow the new links
• go to PLANTLOOP
  • click on one of the loops
  • click on "show node connections"
    • It will show you what components this connected to.
• go to CHILLER:ELECTRICS
  • click on "Central Chiller"
  • at the bottom of that page click on "prev objects & next objects"
    • will show you a list of objects the chiller is connected to with a diagram of the connection

You can try this with other objects

that is all so far.

Notes

• Weppy was initially written in about 2-3 days. It was written to assist in a presentation on E+.
• Now it has become a useful tool to understand how E+ builds it's HVAC.
• This understanding is being used to further develop functions in eppy
• Apart from this, weppy is showing potential for being a good viewer for E+.
• You are welcome to fork it and build such a viewer.
  • the eppy team may be motivated to write functions that will assist you in this.
• Any comments or ideas for further development can be posted as an issue (or as a comment in an issue) in weppy

Installation

• clone weppy
• git clone https://github.com/santoshphilip/weppy.git into a folder of your choice
• create a virtual environment
• pip install -r requirements.txt

Note 1: weppy uses a modified version of eppy. If you already have eppy installed, unistall it by doing pip uninstall eppy then do pip install -r requirements.txt

Note 2:Install graphviz from here to view the diagrams

Running weppy

• cd to the folder where you cloned weppy
• python weppy.py
• open "http://localhost:8080" in your browser

where do the idf files come from

take a look at the file idffilenames.txt

where does the idd file come from

It is hard coded in eppystuff.py. Change it if you need to.