X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com To: geda-user AT delorie DOT com From: "Richard Rasker (rasker AT linetec DOT nl) [via geda-user AT delorie DOT com]" Subject: [geda-user] Net length info question Message-ID: <0a59af1c-d27e-2b2f-f649-fd5f84ae7fc5@linetec.nl> Date: Sat, 3 Feb 2018 14:57:56 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Reply-To: geda-user AT delorie DOT com Hi all, Maybe a rather unusual question, but at the moment, I'm "abusing" PCB in the construction of our new home, intended to rely on 100% solar energy: we plan to use the ground under the house for storing heat, by laying 3 lengths of 100 m (~300 ft) of tubing in the foundations as a heat pump source. The heat is collected from PVT panels, a solar collector, and perhaps even a heat exchanger in the fireplace flue, and then sent through this underground tubing whenever the underground temperature is lower than the source temperature. (As an added bonus, the solar panels and the roof are cooled in the process, significantly increasing the panels' efficiency, and lowering the need for air conditioning on hot days.) The underground tubing comes in fixed lengths of 100 meters, and this is where PCB comes in: I created a plan of the foundation compartments where the tubing is laid in meanders or spirals (haven't decided which is best yet), using PCB's R function (Info -> Report Net Length) to check the total length of one 'tube'. Whit a bit of trial-and-error, I can neatly fill in the different compartments up to the total lenght, observing a minimum bend radius (arc tool, of course). Question (and the answer is probably 'no', but I'm curious anyway): with the cursor over the net, is there a way to report the net length up to the cursor, even when the total length is more? The actual tubing has markings at every 10 meters, and it would be convenient if I could duplicate this in the PCB plan -- but it might also be handy when designing CPU and memory buses for actual pcb's. Thanks already, Best regards, Richard Rasker