User manual update: Heat map

[Rick Walsh]

Hi Willem,

> On Mon, Oct 17, 2016 at 12:41 AM, Rick Walsh <rickmwalsh at gmail.com> wrote:
>> My suggestion would be:
>> - Start the section with a paragraph explaining what the heat map
represents and how it works (basically Robert's text), with an example of a
heat map
>> - Provide the comparison with the instantaneous tissue graph, and
provide a numbered legend for the colours (basically Willem's text and
graphics currently in master).
>>
>> The legend could be a single graphic, comprising an enlarged version of
the colour scale you've already made, annotated with:
>> - label oversaturated / offgassing zone, and undersaturated / ongassing
zone down left hand side of the scale
>> - tick marks and numbers for % M value at for example 120, 100, 80, 60,
40, 20, 0 down right hand side of upper part of scale, labelled as "% M
value" or "Gradient Factor"
>> - tick marks and numbers for % inert gas value at for example, 100, 75,
50, 25, 0 down right hand side of lower part of scale, labelled as "% inert
gas saturation"
>>
>> If I get a chance, I will create a colour scale legend like the above,
but feel free to beat me to it (or suggest a better idea).
>>
>> This could either be separate from, or combined into, the comparison
with the instantaneous tissue bar graph.

On 17 October 2016 at 20:43, Willem Ferguson <
willemferguson at zoology.up.ac.za> wrote:
>
> Would you be prepared to put together such a colour gradient? As long as
the captions for the top and bottom parts of the pressure scale are
precise, this could be part of the first figure. I am, however, not sure
that there is enough screen width to put all of that in one single figure.
So maybe a separate colour gradient scale is more efficient.

On 18 October 2016 at 23:00, Willem Ferguson <
willemferguson at zoology.up.ac.za> wrote:
>
> I will hold off a bit with the user manual content until the patches are
in master. ok? i will replace current graphics with a new one.
> I think the expansion of the yellow zone is excellent.
> I also think Robert's argument about total ambient pressure vs
equilibrium inert gas pressure is persuasive.
>

I put together a heatmap scale legend for inclusion the manual, along the
lines of what I suggested on Monday, with the bar graph for comparison.
Attached is the png and the gIMP file.  The legend is valid if both my
patches in the email "[PATCHES] Vary undersaturated portion of heatmap
according inert gas" are applied.  If they are not taken, then obviously
the scale will need adjusting too.

Do you have any comments?  I intend this legend to take the place of the
coloured squares and descriptions, starting with "Dark blue:  Tissue has
low but increasing inert gas pressure, less than or equal to 53%..."

Cheers,

Rick
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