[Therion] Therion and DEM

[Marco Menchise]

Hello,
I'm facing same problem.

Any hint/answer?
Thanks,
Marco


Il giorno ven 29 giu 2018 alle ore 00:38 Xavier Robert via Therion <
therion at speleo.sk> ha scritto:

> Dear all,
>
> For a quite large project, I am using a relatively high-resolution DEM
> (i.e. 1 px = 1 m), and I am trying to use it within Therion to produce a
> .lox-3D file. I am however facing some problems:
>
>    - If I export the full resolution DEM to a .th file (6540*4307 cells)
>    with the line "grid 325816.2990788577 5106250.599820679 1 1 6540
>    4307 ». I have the error « therion: error -- dem.th [14] -- line too
>    long ». This line 14 correspond to the first row of the DEM. ASC
>    parameters are « #NCOLS = 6540, NROWS   = 4307, XLLCORNER =
>    325816.2990788577, YLLCORNER =5106250.599820679, CELLSIZE = 1.0 »
>    - If I export the DEM with a 5 m pixel resolution (1308*861 cells)
>    (with the line "grid 325816.299079 5106250.59982 5.001161440185831
>    5.001161440185831 1308 861 », I get the same error,
>    - If I export the DEM with a 10 m pixel resolution (654 * 431 cells)
>    (with the line « grid 325816.299079 5106250.59982 9.996519721577727
>    9.996519721577727 654 431 »), everything compiles OK and the result is
>    quite OK (
>    https://www.groupe-speleo-vulcain.com/wp-content/themes/custom_theme/3d/JB.html
>    ; be patient, it takes time to load), but not with the full resolution.
>
>
> The process to build each .th DEM is exactly the same, I do not touch any
> end of line. I edit the .asc DEM with vi to translate it into a .th file.
>
> I thus suspect that there is a size limitation for the DEM in Therion, I
> imagine a limitation in the number of row/columns of the DEM.
>
>    - Is that true ?
>    - If yes, what is this size limit for DEMs ?
>    - As anyone an idea how to overtake that and use the full resolution
>    DEM ?
>
>
> Cheers,
>
> Xavier
>
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