Hi Martin - Thanks! This is much better, but still not what I want. I don't want the profile to fold back on itself at all. I want one continuous profile extending from OC5a on the left to G14 on the right. Is that possible? If I draw them as "projection none", then two questions come up. First, if I put survey stations in the scrap will they be used to scale the drawing? Second, can two (or more) such scraps be joined? -- Bill Gee On Friday, September 6, 2019 10:26:52 AM CDT Martin Sluka via Therion wrote:
Hi Bill,
it looks you have not defined „extend“ of centerline in your centerline data.
Because extend right is default Therion will extend your stations form OC5a to the right, but it has to close the loop and there should be the problem.
Your scrap extended Profile-OC5a-G10 includes stations OC5a to G10, stations OC5a-G are extended to East but stations C9 and C10 are extended to West.
Try to divide that loop to two scraps from OC5a to G8 and G8 to G14 and add extend commands. Not use join commands for first elevation export.
extend right OC5a G1 19.6 134 3.0 314 -3.0 1.0 9.8 18.7 3.5 G1 G2 20.4 133 29.0 313 -28.0 3.0 6.6 17.3 4.2 G2 G3 21.2 125 13.0 306 -13.0 2.3 3.0 9.3 6.4 G3 G4 22.6 60 4.0 239 -5.0 6.2 2.0 4.8 2.4 G4 G5 4.5 48 -10.0 228 10.0 2.6 1.7 1.2 0.3 G5 G6 12.3 101 18.0 281 -18.0 1.5 1.5 7.2 0.3 G6 G7 9.0 127 7.0 308 -7.0 7.3 16.2 5.1 2.0 G7 G8 10.9 44 -8.0 225 8.0 12.8 10.4 4.1 2.3 extend left G8 G9 8.5 335 -15.0 157 16.0 8.5 27.4 2.7 3.1 G9 G10 15.5 307 -1.0 128.5 1.0 3.4 3.9 0.7 0.8 G10 G11 32.0 267 -1.5 88.5 2.0 7.4 5.6 0.5 1.0 G11 G12 21.8 262 0.0 81 0.0 1.7 4.8 1.5 1.4 G12 G13 5.7 246 6.0 - -6.0 1.8 3.0 1.0 2.0 G13 G14 13.9 236 -61.0 57 62.0 - - - - extend hide G14 G1 5.9 - -32.0 220 32.0 - - - -
flags splay G1 G1a 12.9 200 -6.0 - 6.0 20.0 20.0 17.3 4.2 G7 G7a 18.4 249 12.0 - -12.0 10.4 12.8 4.1 2.3 flags not splay
Add command select to your thconfig file
source StarkCaverns.th
select StarkCavernsProfiles@StarkCavernsProfiles
# Load the Metapost code for custom symbols
and add to scrap G10-G14 (G8-G14) parameter -flip horizontal, because in output it should be flipped.