[Therion] Altitude colors range

[Bruce]

>Or maybe I am not understanding what you mean by including the centreline
in the map

 

Like this

map DeckExtensionPlanMap -title "The Deck Extension<br>Upper
Levels<br>Middle Earth Cave<br>Greenlink System"

 .

             36-BigWednesdayPlan at MiddleEarth

 36-BigWednesdayPlanCL at MiddleEarth

.

end map

 

where the contributory maps look like this.

 

map 36-BigWednesdayPlanCL -title "36-BigWednesday centreline Plan"
-projection plan

  36 #centreline survey

endmap

 

map 36-BigWednesdayPlan -title "36-BigWednesday Plan" -projection plan

  36-BigWednesdayPlan-s1 #scraps

  36-BigWednesdayPlan-s2

endmap

 

So what it is looking like, if the contributory maps are all derived from
scraps (or maps in turn derived from scraps), then the altitude range is
correct.

But if there is a map that is centerline derived (ie has no scraps) then the
altitude minima is set to zero.

 

One other thing.

All my tests so far use survex for loop closure.  I have not tried using
Therion loop closure.

And all my files are native Therion files - no survex imports.

 

Bruce

 

  _____  

From: therion-bounces at speleo.sk [mailto:therion-bounces at speleo.sk] On Behalf
Of Marco Menchise
Sent: Thursday, 8 January 2015 3:05 a.m.
To: List for Therion users
Subject: Re: [Therion] Altitude colors range

 

I checked and I can confirm what Bruce is saying. If you don't include
centerline in map, the altitude range is correct.

 

If you hide the centerline in the layout (leaving it in the map) the
altitude range keeps starting from 0 m.

 

Marco

 

 

On Wed, Jan 7, 2015 at 2:52 PM, Footleg <drfootleg at gmail.com> wrote:

I am not seeing this Bruce. I just tested with 5.3.16. My survey imports the
centreline from a Survex .3d file however, so that might make a difference?
Or maybe I am not understanding what you mean by including the centreline in
the map. I turned off the centreline using 'symbol-hide line survey'. If I
comment that out in my layout then the centreline is drawn in the map, but
my altitude range still covers only the range of my scraps.

 

Footleg

 

On 5 January 2015 at 22:40, Bruce <bruce at tomo.co.nz> wrote:

OK, the problem is not the previews or the offsets, as it occurs in the map
examples below regardless of presence of previews or offsets.

What does seem to control whether the altitudes start at zero meters is
whether the map definition includes a survey centerline.

If part of map definition includes a survey centerline, then altitudes are
coloured from zero meters to survey maxima (a bug?).

If map definition has no survey centerline as part of it's definition, then
coloured from survey minima to survey maxima (correct behaviour).

Hence I find this behaviour manifests in maps in progress, but when they are
finished and I (usually) turn off the centerline maps, they correct
themselves.

 Bruce

 

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