[Paraview] Recommendations for display of 4D color dataset

[Richard Beare]

Fantastic - that does what I'm after.

Thankyou

On Wed, Jun 15, 2011 at 10:59 PM, Utkarsh Ayachit
<utkarsh.ayachit at kitware.com> wrote:
> ParaView associates color maps with array-names, so all arrays with
> the same name use the same color map. An easiest way around this is to
> apply the "Calculator" filter to each of the mha file readers set the
> expression to the name of the input array while change the "Result
> Array Name" for every instance of the calculator to be something
> unique. Now you can color the results produced by each of the
> calculators differently using different colormaps.
>
> Utkarsh
>
> On Wed, Jun 15, 2011 at 1:02 AM, Richard Beare <richard.beare at gmail.com> wrote:
>> Hi,
>> I'm investigating methods for display of a 4D microscopy dataset. I'd
>> like to be able to reproduce the style of display provided by Imaris,
>> however I'm not entirely sure how Imaris does it. It may be volume
>> rendering or a clever surface rendering.
>>
>> The data is from a confocal microscope and has 3 fluorescent channels.
>> I can convert the data to many forms - at present I have it as 3
>> channel mha and 3 individual mha files.
>>
>> The things I've tried are 1) volume rendering each channel
>> independently and applying a red, green or blue colormap. However I
>> don't seem to be able to set a different colormap for each volume. 2)
>> using the contour filter to create several contours for each channel
>> and colour the result. If I use a solid color for each channel and
>> play with opacity I can get interesting results. However I'd like to
>> be able to colour according to underlying brightness. I have the same
>> trouble with colourmaps in this approach as I do for the volume
>> rendering - I am only able to set one colourmap. A temporary option is
>> to use the colourmap for the most important channel and use solid
>> colors for the others.
>>
>> Is anyone able to recommend a better way?
>>
>> Thanks
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>