[Therion] therion sketch .th, Use of Grade UISv1_1

[Benedikt Hallinger]

Hi Alastair,
grade/endgrade outside centerline or survey definition is to define grade-definitions.
Inside a centerline(!) you just need the grade specification, which will imho be valid until the next grade instance.

> Am 23.12.2019 um 18:02 schrieb alastair gott <alastairgott at hotmail.com>:
> 
> 
> Hi Therion mailing list,
> 
> I'm trying to use the function "grade" in one of our .th files, theres a sketch made of a cave with very little detail, but we think it would be better to include it.
> 
> I'm strugging to get the function grade to work, therion is giving me red writing "-- not enough data readings" and stopping the survey from generating, but only when I implement the grade function.
> 
> I must be using it incorrectly, but I've tried it between survey and centreline commands too and that isn't working either. this gives red writing "-- invalid value -- centerline"
> 
> centerline
>     #[omitted] ​
>     units length meters​
>     units compass clino degrees​
>     data normal from to length compass clino​
>     extend left​
>     grade UISv1_1​
>     0 1 1.00 300 0.0​
>     1 2 1.00  0.0 0.0​
>     2 3 1.00  0.0 0.0​
>     3 4 1.00  0.0 0.0​
>     4 5 1.00  0.0 0.0​
>     endgrade​​
>   endcenterline
> 
> 
> Regards,
> Alastair Gott.
> 
> AlastairGott at hotmail.com,
> M: 07931779380.
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