[Therion] Multiple elevation maps

[Bill Gee]

Hi Bruce -

The first thing I see in your reply is mention of "extended" projection.  I 
used "elevation" as the projection type on all of my elevation scraps.  Is 
that wrong?  The Therion book is not clear about the difference.

I have read Martin's reply several times, but it is rather terse and I am 
having trouble understanding what he is saying.  There is something simple I 
am missing.

Thanks - Bill Gee


On Tuesday, November 11, 2014 19:12:47 Bruce wrote:
> Bill
> 
> I am not sure if all your elevations have the same projection (ie extended),
> or if you are using different projections or each arm of the Tee (for
> example 000 deg looking at the top arm of the Tee, and 270 deg looking at
> the vertical of the Tee).
> 
> 
> 
> However regardless, defining maps as Martin suggests is the path you should
> take to gaining control.
> 
> 
> 
> The only reason I have found to use projection indexes is where you
> intentionally draw scraps of the same projection that are incompatible in
> some way, such that you would never want to mix those scraps in the same
> export;
> 
> -        ie you draw say two plans optimised for very different scales, and
> you would never mix the 'big scale' version with the 'small scale' version,
> or more credibly,
> 
> -        you have two versions of an extended elevation centreline
> (different extend left/right etc) for the same survey legs and so these will
> need quite different and incompatible scraps to be drawn.
> 
> 
> 
> Therion treats each projection index as a completely different projection,
> so you cannot mix projections with differing indexes any more than you can
> mix plan and elevation within the same export statement.
> 
> 
> 
> Bruce
> 
> 
> 
> -----Original Message-----
> From: therion-bounces at speleo.sk [mailto:therion-bounces at speleo.sk] On Behalf
> Of Bill Gee
> Sent: Tuesday, 11 November 2014 8:56 a.m.
> To: List for Therion users
> Subject: [Therion] Multiple elevation maps
> 
> 
> 
> Hello everyone -
> 
> 
> 
> I am working on a map where the cave makes a T-junction.  I have an
> elevation
> 
> working for the passage from the entrance to the junction.  Now I want to
> make
> 
> a NEW elevation map for each arm of the T.
> 
> 
> 
> I think the secret I am missing is how to specify the scraps to be included
> in
> 
> a specific layout.  I included sections of the thconfig and main.th file
> below.
> 
> 
> 
> The output I get is two identical elevation maps which include all of the
> 
> elevation scraps.  What I want is two (or more) elevation maps each of which
> 
> 
> includes only a few scraps.
> 
> 
> 
> The main map will then include each of the elevation maps as "map-image"
> 
> lines.  These will go in different positions so they match up to the portion
> of
> 
> the plan they illustrate.
> 
> 
> 
> Looking through the Therion Book, I see that scraps can have an index (page
> 
> 20).  Do I need to assign different indexes to the scraps depending on which
> 
> 
> elevation they go with?
> 
> 
> 
> Thanks - Bill Gee
> 
> >From the .th file:
> ###################
> 
> # Plan map joins
> 
> join Entrance1 EntranceConnector
> 
> join EntranceConnector Entrance2
> 
> join Entrance2 TJunction1
> 
> join TJunction1 TJunction2
> 
> join TJunction2 TJunction3
> 
> 
> 
> # Profile map joins - Entrance passage
> 
> join Elevation1 Elevation2
> 
> join Elevation2 Elevation3
> 
> join Elevation3 Elevation4
> 
> join Elevation4 Elevation5
> 
> join Elevation5 Elevation6
> 
> 
> 
> #Profile map joins - C side passage
> 
> join ElevationB1-C2 ElevationC2-C5
> 
> ##################
> 
> >From the thconfig file:
> ##################
> 
> # This layout is for the elevation profile
> 
> layout profilemap
> 
>         units imperial
> 
>         scale 1 200
> 
>         color map-fg [90 66 46]
> 
>         legend off
> 
>         symbol-set UIS
> 
>         map-header 0 0 off
> 
> endlayout
> 
> 
> 
> # This layout is for the elevation profile
> 
> layout profilemap2
> 
>         units imperial
> 
>         scale 1 200
> 
>         color map-fg [90 66 46]
> 
>         legend off
> 
>         symbol-set UIS
> 
>         map-header 0 0 off
> 
> endlayout
> 
> 
> 
> # Entrance passage elevations
> 
> export map -proj elevation -layout profilemap -o MillCreekCaveElevation.pdf
> 
> 
> 
> # C side passage elevations
> 
> export map -proj elevation -layout profilemap2 -o
> MillCreekCaveElevation2.pdf
> 
> 
> 
> export map -proj plan -layout mainmap -o MillCreekCave.pdf
> 
> ##################
> 
> 
> 
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