<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>hi,</div>
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<div>1. had the same problem a while ago (was also looking to place the height labels differently).<br/>
Lines can not be cut off (or at least was not in 5. Only solution is that u make the grid smaller). Although it would be nice if the first and last line could be cut off</div>
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<div>2. last number in grid-origin should be the height of ure entrance (If ure entrance is 405m high: grid-origin 0 0 405 m)<br/>
This changes only where the line is placed, so it would start at the entrance but label would show 405m<br/>
But, it would change the output of point-altitude as well, that will start then at 0</div>
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<div>Axel</div>
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<div style="margin: 0 0 10.0px 0;"><b>Gesendet:</b> Mittwoch, 24. November 2021 um 11:49 Uhr<br/>
<b>Von:</b> "Tarquin Wilton-Jones via Therion" <therion@speleo.sk><br/>
<b>An:</b> "Therion" <therion@speleo.sk><br/>
<b>Cc:</b> "Tarquin Wilton-Jones" <tarquin.wilton-jones@ntlworld.com><br/>
<b>Betreff:</b> [Therion] Cutting off a grid</div>
<div>Hi,<br/>
<br/>
We have a vertical cave that is just over 100 metres deep, with its<br/>
entrance just below a 100 metre contour.<br/>
<br/>
We want to show a grid on the elevation view, like this:<br/>
<br/>
#show an altitude grid every 25 metres<br/>
#("50 50" affects only plan view, so is ignored here)<br/>
grid bottom #behind the cave<br/>
grid-size 50 50 10 meters #one line every 25 metres of depth<br/>
grid-coords border #show numbers at the edge of the survey<br/>
<br/>
This leaves a 20+ metre gap at the bottom, since the cave only just made<br/>
it past the last 25 metre grid line.<br/>
<br/>
1. Is there a way to cut off the grid after a certain amount, so that it<br/>
doesn't show the blank gap at the bottom? Or alternatively, cut off the<br/>
grid after the cave ends? Or "show the next grid line if the cave is<br/>
within 5 metres of it"?<br/>
<br/>
2. Is there a way to start the grid at "0" at the entrance to the cave,<br/>
in order to show depth below the entrance instead of the altitude above<br/>
sea level?<br/>
<br/>
I tried this:<br/>
grid-origin 0 0 400 meters<br/>
But Therion just threw an error with no error message, so I am obviously<br/>
doing something wrong. Does that only work in plan view perhaps?<br/>
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