Add three different node types:

• Supply
• Fitting
• Appliance
  Give each one unique graphics for better readability and unique attributes appropriate for each type.

Add instructions for using the program at the very least in the readme.md file and in the future probably inside the program as well, as the readme.md file is not accessible for your average plumber gasfitter.

Program crashes when a SUP node is set as a child of another node.

Crashes as sup node does not have a length attribute.

Steps to replicate:

1. Create SUP node and one of any type
2. Click the other node then the SUP node

Error message:

Add ability to save and load pipeline designs as when testing it takes along time to reset-up the system after each code alteration. I could have a test layout saved and easily load it each time. Not sure how to save these files, potentially as a csv file to represent a table containing all needed data.

Calc returning "DN" instead of number

Entered this pipe layout and calculated with fluid: LPG, pressure: 3kpa. The section of pipe highlighted in image shows DNmm instead of an actual pipe size.

Steps to replicate

Enter given pipe measurements and settings, Click calc button.

Error message:

Design a automatic test system with example layouts and weird cases to prove accuracy of the tool. Maybe output some kind of proof sheet with examples and results that can be filed.

Graphics overlapping in certain orientations

When a node is connected upwards, The labels overlap the line and make it hard to read. Labels on horizontal lines are offset from centre currently to avoid some other issue. Should be done so that the label is moved depending on the direction of the connecting line(s)

Steps to replicate:

1. Create two nodes of any type near vertically in line with one another
2. Connect them together either way

Error message:

Add some function to produce an output file which can be used to present the pipe sizing results.
Not sure on design and function of this feature yet.

Refactor code for readability and efficiency
Add documentation to functions and objects so python help can be used

When you try to export the results before clicking calculate size, the program crashes.

Error Message

Setup a build script to automatically generate a exe production build. add to readme.

First node should automatically be a SUP node.
Every node after should check if it is within a threshold of another node and if it is place it in line.

Should make it so that when a key is hold and then mouse is right clicked, it automatically creates an appliance instead of a fitting, otherwise keep it as is: First a supply, then anything fitting unless shift key is held, then appliance

Program crashes when calc button is pressed and LPG gas is set to wrong pressure. May possibly happen for CNG haven't checked.
Steps to replicate:

1. Make node and set to SUP type
2. Set Fluid to LPG and Pressure not equal to 3
3. Click calc size button

Add Functions to size domestic water pipes based on tables from ASNZS3500.1. Currently only has Gas functionality and this would word toward the goals of being versatile and useful for NZ Domestic plumbers and gasfitters.

Make Dedicated instruction file that is well presented.