The app would be used by customers to draw the rooms of their house to then automatically have a pipe layout added for floor heating. The pipe is laid at consistent spacings but has a maximum length (after which a new pipe is needed). The pipe starts from a given place (called a manifold). When the design is finished the output should also include a list of materials which should feed into the website quote tool, which already is used to determine the materials needed [OBSCURED]
The app would be for android and apple smartphones and tablets although could be used by a desktop.
I have attached the general principles of whats required.