How can I find dip direction and a dip of a plane with known normal vectors?

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Hrvoje Lukacic 2022-10-18

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评论： Hrvoje Lukacic 2022-10-18

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Hello. I have atxt file containing multiple colums and three of than being nx, ny, and nz?

Can you please help me on how to find a dip direction and a dip of a plane.

Note - some of my nz values are negative. Below I am posting a core that i wrote but it is not giving be good values for dip direction.

Thank you for your help

data = load('artificial_slope.txt') %loading data
% defining input values based of input txt file 
nx = data(:,4)
ny = data(:,5)
nz = data(:,6)
% abs vaue of nz component to eliminite minus sign 
nz_abs = abs(nz)
% dip calculation
dip_disc = acos(nz_abs)*(180/pi)
% dip direction calculation (giving wrong results)
dip_dir = (360-atan2(ny,nx) * (180/pi))-90