Bruce Mutton schrieb: > > Have just had some partial success at adding a surface to my outputs. > > I have cave data, georeferenced to the same co-ordinate system as that > below, that covers at present 1km x 1km in plan, but I expect to add > other systems to extend this area. > > I have cropped a jpg topo map image to an area 3km x 3km > > I am exporting at 1:1000 to pdf (900mmx1012mm) > > I have labelled grids at 100m centres on the cave map, so I know from > observing the output that the grids and the cave are correctly > georeferenced. > > Trouble is the jpg seems to be âzoomed inâ many times too much. > > My *.th data as follows; > > survey⦠> > surface #Canaan Road South Topo > > cs EPSG:27200 #NZ Map Grid 1949 > > bitmap ./Surface/Canaan_South_Topo_NZMG_990210_020240.jpg \ > > [0 0 2499000 6021000 100 100 2502000 6024000] > > grid-units meter > > # grid <origin x> <origin y> <x spacing> <y spacing> <x count> <y count> > > # grid-flip (none)/vertical/horizontal > > # [grid data] > > endsurface > > ⦠> > endsurvey > > I have tried reducing the co-ords to the NE corner of the image, and > seem to get a more legible, bur still erroneous, surface image. > > Makes me suspect Iâm exceeding some software limits and thereâs an > unreported error, or that Iâm just making a dumb mistake. > > A possibly related matter, I have had âsketches onâ (no quote marks) > in my layout since my first (almost) Therion steps last year, and not > once have I had my jpg sketches exported to pdf. I expect they should, > and I recall that the samples provided seem to do so - I could find no > difference between my code and the samples. > > Any ideas on these two issues? (surfaces most importantly) > > Also the above code does not produce a 3D lox model. Is that because a > surface is either 2D or 3D but not both? > > It would be nice to have at least a 2D image above my lox model until > I can get a grillage of elevations sorted. > > Regards > > Bruce > > ------------------------------------------------------------------------ > > _______________________________________________ > Therion mailing list > Therion at speleo.sk > http://www.speleo.sk/mailman/listinfo/therion > Hi Bruce,
in the bitmap command is the problem! The "0 0" and "100 100" are in pixel coordinates! This means "0 0" is the lower left corner of the image. Usually I use lower left and the upper right corner. I suppose your image is bigger than 100x100 pixel. Regards Wolfgang
