As mentioned in the general forums, I’m reposting my question here:
a friend of mine is biologist and we are trying to find a way to compare 3D geometry.
The purpose is to compare two 3D volumes against each other and find out which are the differences.
- First goal would be a graphical approach were we would highlight the differences with different colors. eg. green means equal and red means differates
- Second and long term goal would be a mathematical approach were every difference is calculated as a volume.
We can not just take the two whole volumes and calculate it’s differences(in that case we would just need to compare the weight of the real-life counterparts).
Because we are looking for differences in shape and not in the whole volume.
I’ve asked a few engineers so far who said it would be possible in commercial engineering applications such as CATIA. But they were not willing to pass any information along how to do it and a license for such an app is not affordable for us.
As background information:
The geometry is (re-)constructed out of hundreds of fine cutted prawn brain samples and extrapolated to one closed 3D volume. Purpose is too differate species by the differnce in shape of their brain. In the past this has been done by just looking at it under a microscope and simply “telling” the differences.
If anyone can come up with something like:
“Oh boy, simply connect material node x to y and there you have your graphical comparsion…”
“Cmon dude, I write you a Python script while asleep and feeding my 6 headed python, that will compare that ‘crap’…”
…we’d be really grateful!
PS: If anything of this is hard to get… i’m not a native english tongue and will be happy to explain any further details.