Scalar Field Ranges

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Howley
Posts: 3
Joined: Mon Jul 20, 2015 2:17 am

Scalar Field Ranges

Post by Howley »

Hi all,

I'm working on producing a graphic that shows deviation of a scanned structure from a design model. I want the colour scale to be labelled in even increments, but the only way I've found to do this is to make the minimum saturation equal to the opposite sign of the maximum displayed value (or max saturation equal to opposite sign of min displayed). The issue is that unless the data are perfectly symmetrical ,ie abs(max value) = abs(min value), I lose 'resolution' at one end of the colour scale.

If I could input a maximum and minimum displayed value and saturation that is outside the range of my data it would be ok, but CC currently seems to limit these values to anything within the data range.

Am I missing something? Can CC be changed to I can input any value at all in these boxes?

Thanks,

Luke
daniel
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Re: Scalar Field Ranges

Post by daniel »

Indeed, getting the exact values you want in the color scale is a bit tricky (it is planned to let the user set them in a future version).

Meanwhile:
- have you tried with the 'symmetrical color scale' option in the SF display parameters ('Parameters' tab)?
- you can also define an absolute color scale (see http://www.cloudcompare.org/doc/wiki/in ... es_Manager)
- and you can also create a fake cloud with a very simple ASCII file containing only two points (one having the min scalar value and the other the max scalar value) and display the color scale on this cloud instead of the real one.
Daniel, CloudCompare admin
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