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awhite40 / MIC-Modeling-Polymer-Composites

Developing structure property linkages for glass fiber reinforced polymer systems.
awhite40.github.io/MIC-Modeling-Polymer-Composites
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ideas for determining orientation #14

Open awhite40 opened 9 years ago

awhite40 commented 9 years ago

what is the probabitlity that 2 fiber segments whose centroids (ends/ minimum distance) are seperated by d and whose misorientation is less than t are connected
Make fake data in 2D

Trim function - chops off zeros

awhite40 commented 9 years ago

I am having trouble distinguishing between a circular section(intersection) and a 45 degree line using just dx and dy. I was thinking I should try finding the orientation of the bounding elipse like Dr. Kalidindi said but I am not sure how to go about that. Any suggestions? @tonyfast

tonyfast commented 9 years ago

The Eccentricity will allow you to compute the angle.

Think about this problem in 2-D before you move to 3-D. I am working on the codes to do what Nils is doing in 3-D over here.

awhite40 commented 9 years ago

I agree but what I am not understanding is how to compute the major and minor axis lengths which are used to compute eccentricity.

tonyfast commented 9 years ago

The minor and major axis in a 2-D feature is

where is the standard deviation of the x and y locations of the feature.