[GRASS5] r.profile

[Bob Covill]

Hello,

I have updated the help page in CVS. I have included some examples, and 
updated some of the other descriptions. Check it out and see if I missed 
anything.

You are proably right about the RGB values. I have also updated the 
program to now output the colors as RRR:GGG:BBB.

Check it out and let me know if you find any errors or problems.

As an example, I have attached a plot made from the RGB output. The data 
is display with a 15x vertical exxageration.

--

Bob

Hamish wrote:
>>The modified r.profile is now in CVS. This version now accepts 
>>coordinates directly from stdin (plus the original methods). At this 
>>time it expects coordinates as space or tab seperated easting and 
>>northing. Any labels after these are ignored.
> 
> 
> can you provide a short example? (preferably added to the help page)
> 
> 
> 
>>I have also added an additional flag "-c" which will output the RGB 
>>color values for each profile point. This can then be used to plot a 
>>color coded cross section.
>>
>>Please give it a try and let me know if there are any problems.
> 
> 
> Nice, I look forward to checking it out.
> 
> It took me a little while to grasp what the new RGB flag did, but
> yeah, I like it. (grabs the raster's color value at that coordinate)
> 
> One thing -- it outputs "RRR GGG BBB". While I think most places in
> GRASS will understand that format, I've been trying to standardize on
> "RRR:GGG:BBB". Mostly because the r.colors rules looked like:
> 
> 0 255 255 255
> 1 255 255 255
> 2 255 255 255
> etc.
> 
> Which is ok, but when the color values are closer to the data values
> it makes it really hard to read, eg
> 
> 0 0:255:0
> 
> is a lot easier for my eye to follow & my brain to register vs
> 
> 0 0 255 0
> 
> 
> or were you thinking of feeding the color values into multiple columns
> to pass to external software? (vs r.profile with -g flag -> v.in.ascii
> -> GRASSRGB column that d.vect and ps.map might understand and take
> advantage of)
> 
> 
> 
> 
> Hamish
> 
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