mirror of
https://github.com/wassname/simpeg.git
synced 2026-06-27 23:23:37 +08:00
Rowan Cockett
34 lines
789 B
Python
34 lines
789 B
Python
from numpy import *
|
|
from utils import diff, ave
|
|
|
|
|
|
def getVolume(X,Y,Z):
|
|
|
|
# compute edge vectors
|
|
t1x = ave(ave(diff(X, 1),2),3)
|
|
t1y = ave(ave(diff(Y, 1),2),3)
|
|
t1z = ave(ave(diff(Z, 1),2),3)
|
|
|
|
t2x = ave(ave(diff(X, 2),1),3)
|
|
t2y = ave(ave(diff(Y, 2),1),3)
|
|
t2z = ave(ave(diff(Z, 2),1),3)
|
|
|
|
t3x = ave(ave(diff(X, 3),1),2)
|
|
t3y = ave(ave(diff(Y, 3),1),2)
|
|
t3z = ave(ave(diff(Z, 3),1),2)
|
|
|
|
# v = [t1x t1y t1z][i j k]
|
|
# [t2x t2y t2z]
|
|
# [t3x t3y t3z]
|
|
|
|
v = t1x*(t2y*t3z - t2z*t3y) - t1y*(t2x*t3z - t2z*t3x) + t1z*(t2x*t3y-t2y*t3x)
|
|
|
|
return v
|
|
|
|
|
|
if __name__ == '__main__':
|
|
|
|
X, Y, Z = mgrid[0:4, 0:5, 0:6]
|
|
X = (1.0*X)/2
|
|
v = getVolume(X, Y, Z)
|
|
print v |