How to measure an angle and keeping the one that verify a certain measure defined priviously ?

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mika 2014-5-26

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评论： mika 2014-6-2

I have a network and i want to measure the angle connecting every two vectors defined priviously

by coordinates(feature points detected) and passing from angle to another with keeping angles

that verify a condition of measure

below the network with mentioned coordinates in red :

A far purpose is to keep form that verify X, Y, L, T and -

X : Four angles of 90 degrees

Y : One angles <90 and two others >90

L : One angle about 90 and the other about 270

- : 180

How can i proceed

any ideas please!

thanks

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mika 2014-5-29

在 MATLAB Online 中打开

it's only a 148*2 matrice below an example

ending_pts =