Re: [Therion] Best approach for colouring elevations

2019-05-01 Thread Bruce Mutton
:) A software tester is a valuable addition to the team.

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From: Therion  On Behalf Of Tarquin Wilton-Jones via 
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Sent: Thursday, 2 May 2019 07:33
To: therion@speleo.sk
Cc: Tarquin Wilton-Jones 
Subject: Re: [Therion] Best approach for colouring elevations

> You have created two lookups for the same parameter (map), but no index has 
> been specified.  i would guess that is why the last lookup overwrites.


Agreed. Ideally, it should warn me that I have overridden my lookup, and that 
it is only using the last one. Right now, it silently tramples over it, which 
is not a desirable response.
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Re: [Therion] Best approach for colouring elevations

2019-05-01 Thread Tarquin Wilton-Jones via Therion
> You have created two lookups for the same parameter (map), but no index has 
> been specified.  i would guess that is why the last lookup overwrites.


Agreed. Ideally, it should warn me that I have overridden my lookup, and
that it is only using the last one. Right now, it silently tramples over
it, which is not a desirable response.
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Re: [Therion] Best approach for colouring elevations

2019-05-01 Thread Bruce Mutton
>Definitely feels like I have stepped off the edge of stable features here. I 
>will file a bug report.
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Looking at the example in your bug report... 
https://github.com/therion/therion/issues/133 
You have created two lookups for the same parameter (map), but no index has 
been specified.  i would guess that is why the last lookup overwrites.
Try using an index as described in 
https://therion.speleo.sk/wiki/examples#colour_scales_-_lookups


ie, similar to...
You may specify multiple lookup tables for same criterion using an index, ie 
“:” separator in label

lookup altitude:scale1
 600
 800
endlookup
and

lookup altitude:scale2
 800
 750
 700
endlookup
and use then

color map-fg altitude:scale1
or
color map-fg altitude:scale2

Bruce

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Re: [Therion] Best approach for colouring elevations

2019-05-01 Thread Tarquin Wilton-Jones via Therion
> It could be that red is the first colour in the default map colour list


Nope, tested that. Software tester (and pseudo-developer) by trade ;)
It did a full paint of the entire cave using a map that I had not
selected. Made me think I had got my map structures wrong or selected
the wrong map.

> What if you add to the below sequence a lookup colour specification for 
> bar@mycave that differs from foo's colour?

It takes the last one - whichever is specified last - that contains the
scrap. It does not take the one you select, unless that one happens to
be specified last.

Definitely feels like I have stepped off the edge of stable features
here. I will file a bug report.
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Re: [Therion] Best approach for colouring elevations

2019-05-01 Thread Tarquin Wilton-Jones via Therion
Fun fact;
You don't even have to select the map for map lookups to find the scraps
inside it.

mycave.th:
survey mycave
  map foo
myscrap
  endmap
  map bar
myscrap
  endmap
  ...
endsurvey

thconfig:
source "mycave.th"
select bar@mycave
lookup map
  foo@mycave [100 0 0]
endlookup
layout elevation265
  color map-fg map
endlayout
export map -proj plan -layout local -o "mycave.pdf"

myscrap will be red, because it is in foo, even though bar is selected.
Needless to say, this is a little unpredictable (is it a feature or a
bug?), and means things get coloured even when you didn't expect them to be.
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Re: [Therion] Best approach for colouring elevations

2019-04-30 Thread Martin Sluka via Therion

> 1. 5. 2019 v 1:14, Tarquin Wilton-Jones via Therion :
> 
>>  is getting really close to spaghetti code.

Tarquin,

you may use input index file with map or maps definition to survey in th file, 
something as this

input map_plan_lookup.thc
input map_plan_default.thc

The same with all joins and all equates, …

So the code in one file could be quite simple at the end.

Just another hint

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Re: [Therion] Best approach for colouring elevations

2019-04-30 Thread Tarquin Wilton-Jones via Therion
>> And what is the problem define another maps from segments and colour them?
> 
> 
> Having to split my overall map up into yet another series of submaps,
> each of which covers an arbitrary group of maps from several unrelated
> subsections, is getting really close to spaghetti code.


I withdraw my request.

You were right, using maps I can make this very logical and "clean" (for
some value of "clean"). Each survey exports one map for each "plane" of
the elevation view. (Optionally, it can also export a combined map, in
case I want to render it separately from the other caves/surveys, such
as in an atlas.) Each parent survey exports a map for each plane used by
any of its children, containing the relevant maps from the children. At
the top level, I have the overall map which combines the plane maps. The
lookup then only needs to match those. Or they can have the colours
hardcoded.

Thanks for the hints :)

Tarquin
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Re: [Therion] Best approach for colouring elevations

2019-04-30 Thread Tarquin Wilton-Jones via Therion
>> segment1@cave1 [100 40 40]
>>  segmenta@cave2 [100 40 40]
>>  segmenti@cave3 [100 40 40]
>>
>>  segment2@cave1 [100 70 0]
>>  segment4@cave1 [100 70 0]
>>  segmentii@cave3 [100 70 0]
>>
>>  segment3@cave1 [100 100 0]
>>  segmentb@cave2 [100 100 0]
>>  segmentiii@cave3
> 
> And what is the problem define another maps from segments and colour them?


In the simple case I showed above, there would be no problem. But in my
actual case, I am doing this:

select profilemap1@area
...
lookup map:xyz
#map within survey, grouping scraps that are in the same plane:
scrapgroupingm...@survey.cave.area
#whole survey, since the whole cave is in the same plane:
wholec...@cave.area
endlookup

I have already split the surveys up into separate maps to show each
aligned group.

Having to split my overall map up into yet another series of submaps,
each of which covers an arbitrary group of maps from several unrelated
subsections, is getting really close to spaghetti code. Meanwhile
grouping within the lookup would be comparatively clean and easier to
understand.
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Re: [Therion] Best approach for colouring elevations

2019-04-30 Thread Martin Sluka via Therion


> 30. 4. 2019 v 19:00, Tarquin Wilton-Jones via Therion :
> 
> segment1@cave1 [100 40 40]
>  segmenta@cave2 [100 40 40]
>  segmenti@cave3 [100 40 40]
> 
>  segment2@cave1 [100 70 0]
>  segment4@cave1 [100 70 0]
>  segmentii@cave3 [100 70 0]
> 
>  segment3@cave1 [100 100 0]
>  segmentb@cave2 [100 100 0]
>  segmentiii@cave3

And what is the problem define another maps from segments and colour them?

map 100_40_40
 segment1@cave1
 segmenta@cave2
 segmenti@cave3
endmap

etc

lookup map:mainset
100_40_40 [100 40 40]
…
endlookup

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Re: [Therion] Best approach for colouring elevations

2019-04-30 Thread Tarquin Wilton-Jones via Therion
> lookup map -title "Map colour legend"
>   map1@some_survey [colour] "passage in front"
>   map2 [colour] "passage in between"
>   map3 [colour] "passage behind"
> endlookup


This is pretty much exactly what I had in mind, and it works great :)
Sadly it is not documented anywhere (except the mail and wiki page you
already pointed to), so I can't see if it has any other useful features.
Just wondering; is there is any way to group them together, when you
have multiple maps sharing a value?

Eg.

lookup map:mainset
  segment1@cave1 [100 40 40]
  segmenta@cave2 [100 40 40]
  segmenti@cave3 [100 40 40]

  segment2@cave1 [100 70 0]
  segment4@cave1 [100 70 0]
  segmentii@cave3 [100 70 0]

  segment3@cave1 [100 100 0]
  segmentb@cave2 [100 100 0]
  segmentiii@cave3 [100 100 0]
endlookup

it would be nicer if these could be grouped so that you only need to
specify the colour just once per group (makes it easier to change them
if you reorder things, or a new segment gets added).

I can see ways to group dates or altitudes, but not scraps or maps.
Hoping I missed something.
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Re: [Therion] Best approach for colouring elevations

2019-04-30 Thread Tarquin Wilton-Jones via Therion
>> Or you could avoid selecting any maps or surveys.
> 
> Take care, than it that case Therion will export EVERYTHING it is able to 
> find to export. What is probably not what you want.


Indeed. I have a couple of different versions of each master map at each
orientation. Such as a simple plan view, and a plan view with levels
displaced so that you can see what is underneath them. If I let Therion
select everything, it will try to layer them all on the same PDF, which
wouldn't work. So I only select the master map I am interested in.
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Re: [Therion] Best approach for colouring elevations

2019-04-30 Thread Martin Sluka via Therion

> 30. 4. 2019 v 11:04, Bruce Mutton :
> 
> Or you could avoid selecting any maps or surveys.

Take care, than it that case Therion will export EVERYTHING it is able to find 
to export. What is probably not what you want.

Martin
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Re: [Therion] Best approach for colouring elevations

2019-04-30 Thread Bruce Mutton
Or you could avoid selecting any maps or surveys.  That way every map will be 
exported.  But I think your two solutions are better.
Bruce

-Original Message-
From: Therion  On Behalf Of Tarquin Wilton-Jones via 
Therion
Sent: Tuesday, 30 April 2019 20:41
To: therion@speleo.sk
Cc: Tarquin Wilton-Jones 
Subject: Re: [Therion] Best approach for colouring elevations

> I had tried "colour map-fg map" before, but it seems to treat my 
> entire system as the same map, instead of colouring per sub-map. 
> Presumably because I have:
> 
> select overallElevationMap@caveArea
> 
> If I wanted to automatically colour per sub map, would I have to 
> instead switch to selecting each submap separately like this?
> select sectionMap1@cave1.caveArea
> select sectionMap2@cave1.caveArea
> select sectionMap1@cave2.caveArea
> ...
> 
> Or am I just missing something obvious?


Never mind, I will answer myself.
select overallElevationMap@caveArea -map-level 3

Thanks again folks.
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Re: [Therion] Best approach for colouring elevations

2019-04-30 Thread Tarquin Wilton-Jones via Therion
> I had tried "colour map-fg map" before, but it seems to treat my entire
> system as the same map, instead of colouring per sub-map. Presumably
> because I have:
> 
> select overallElevationMap@caveArea
> 
> If I wanted to automatically colour per sub map, would I have to instead
> switch to selecting each submap separately like this?
> select sectionMap1@cave1.caveArea
> select sectionMap2@cave1.caveArea
> select sectionMap1@cave2.caveArea
> ...
> 
> Or am I just missing something obvious?


Never mind, I will answer myself.
select overallElevationMap@caveArea -map-level 3

Thanks again folks.
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Re: [Therion] Best approach for colouring elevations

2019-04-30 Thread Tarquin Wilton-Jones via Therion
> In the situation you describe I would probably define a new elevation map 
> between each of your 'breaks'.
> Then in your layout include...
> colour map-fg map


Oh ... How obvious. Yes, I can just put them in separately coloured
maps, and break between maps.

I had tried "colour map-fg map" before, but it seems to treat my entire
system as the same map, instead of colouring per sub-map. Presumably
because I have:

select overallElevationMap@caveArea

If I wanted to automatically colour per sub map, would I have to instead
switch to selecting each submap separately like this?
select sectionMap1@cave1.caveArea
select sectionMap2@cave1.caveArea
select sectionMap1@cave2.caveArea
...

Or am I just missing something obvious?

Cheers,

Tarquin
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Re: [Therion] Best approach for colouring elevations

2019-04-30 Thread Bruce Mutton
Hi Tarquin
There is no difference between colouring of plan or elevation projections.
If I am being pedantic, I make sure that scrap joins in plan and elevation are 
all made in the same passage location, and then colour both plan and elevation 
by altitude, unless I don't colour them at all.  If I am colouring for 
presentation I usually colour by altitude, but I also make use of all of the 
other automated colouring options, and white is a good choice too.
Automated colouring options are listed here, along with user definable 
overrides.
https://therion.speleo.sk/wiki/examples?s[]=lookup#colour_scales_-_lookups

Usually I am not so pedantic, and my scrap joins in elevation do not match 
those in the plan.  To compensate I just make sure scraps are short, and joins 
are placed near a change in gradient or altitude.

In the situation you describe I would probably define a new elevation map 
between each of your 'breaks'.
Then in your layout include...
colour map-fg map

Then if you also wish to manually specify the actual colours or labels, in your 
th-config include...

lookup map -title "Map colour legend"
  map1@some_survey [colour] "passage in front"
  map2 [colour] "passage in between"
  map3 [colour] "passage behind"
endlookup

The colours are optional I think, you should be able to replace them with empty 
square brackets if you also want labels in the legend.  You can omit specifying 
the colours and the labels.  When this feature was first introduced I played 
with it quite a bit, but I may not have used the exact variant shown above.  I 
did have some trouble with colouring maps directly using select statements, as 
hinted at in the web page above, so it may not work perfectly.

Strategic use of transparency and opacity in your layout can also minimise the 
need to apply fancy colouring to your outputs, and in any case will enhance 
them.
Here are the statements and comments I put in my 'standard' layout to remind me 
of what might be good settings.  The opacity setting that works best for white 
passage fill is different to that which works best with colour fills.  It also 
differs for on-screen or printed output viewing.

  transparency on # see thru passages
  opacity 50   # degree of transparency: transparent = 0 <= opacity 
<= 100 = opaque
  #00 = transparent
  #40 = subtle, 60 - 70 = apparent: overwritten text still 
visible
  #80 = good passage definition but overwritten text barely 
visible  
#100 = block out passage underneath
Bruce


-Original Message-
From: Therion  On Behalf Of Tarquin Wilton-Jones via 
Therion
Sent: Tuesday, 30 April 2019 03:03
To: therion@speleo.sk
Cc: Tarquin Wilton-Jones 
Subject: [Therion] Best approach for colouring elevations

Hi folks,

With either extended or projected elevations, we end up with a few passages 
overlapping each other. This is intentional (so displacing some of them is not 
a desired solution). However, it would be nice to be able to colour them 
differently, to make it easier to see which parts belong to which passage. 
Colouring by altitude doesn't help in elevations, because they are all at the 
same altitude when they are overlapping.
"Colour by distance from the viewer" is better.

This could be coloured by colouring the individual scraps, but that is messy, 
and hard to maintain. The desired output would be "colour by break". Meaning; 
each time there is a "break" in the map, change the fg colour.

Does anyone have any tips on how best to colour extended/projected elevations? 
Is "colour by break" possible in some way? Or do you prefer a different 
approach?

Cheers,

Tarquin
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