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Hi there all, I am new here so forgive me if my question is vague or likewise is a bit over the top. I have been sent a client's construction drawing for a care home where i need to design the sprinkler installation. The majority of the rooms have got the same head positions within them, but they have all got a slightly different angle as the building is shaped like a banana. Unfortunately its not a uniform radius that i can tell as the one side is larger than the other. So my question is this. Normally, on a square building, I drop in construction lines along the bedrooms so that i know my sprinkler heads are all the same distance off a wall, and I only need to line up one side. However, with this building being a curve, and the wall angle being slightly different on each room, how do I place an angled construction line or polyline to act as my set out line for my heads. Ive been looking at the drawing and various forums now for the past 2-3 hours and still haven't seen an answer that helps greatly. Thanks in advance, Richard