<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>I might understand something wrong, but it seems to me, that </div><div>what is called `cavelength` in Therion is actually the length of all centerlines.</div><div><br></div><div>This might correspondent to the cave length in straight caves but certainly not in labyrinth like caves.</div><div><br></div><div>I was told about the "Kluterthöhle" in germany which was surveyed in the 60ies to ca. 5900 m and then</div><div>resurveyed and recalculated - to have only a length of 5200 m or so.</div><div><br></div><div>This is for on the one hand a problem with circular shots inside big rooms, like <a href="http://filez.foxel.org/3s3H0d2X361A0K222Z3N">http://filez.foxel.org/3s3H0d2X361A0K222Z3N</a> </div><div><br></div><div>An other problem are crossroads like <a href="http://filez.foxel.org/1t0C0r2Q011i0g1L0i00">http://filez.foxel.org/1t0C0r2Q011i0g1L0i00</a> where you can't young the shared area of two passages twice but must - at least to what I have been thought - deduct some part of the centerlines: in the following picture I have marked the parts being considered cavelength yellow and the centerlines not counting as part of the cavelength red <a href="https://img.skitch.com/20120221-jhraj625isy8j1i9naxiki3b76.png">https://img.skitch.com/20120221-jhraj625isy8j1i9naxiki3b76.png</a></div><div><br></div><div>Certainly I'm not the first person stumbling about this.</div><div><br></div><div>What is the preferred way to approach the calculation of cave lengths?</div><div><br></div><div>Regards</div><div><br></div><div>Maximillian</div><div><br></div><div><br></div><div><br></div><div><img alt="Image 2012.02.21 21:06:44.png" style="max-height: 516px; " id="14fe2421-6871-481f-ae7d-6df1bc45cd1f" height="238" width="320" apple-width="yes" apple-height="yes" src="cid:DBE33487-4F09-4E3E-AC67-B273E46BF43E@fritz.box"><img alt="20120221-jhraj625isy8j1i9naxiki3b76.png" style="max-height: 516px; " id="198bf454-a237-4631-adb7-316f3eebd1fb" height="245" width="240" apple-width="yes" apple-height="yes" src="cid:883129DC-8E65-4282-A366-AF6ECD2918CC@fritz.box"></div></body></html>