Re: geometric challenge :)

Posted by Leon Espinosa-3 on
URL: http://imagej.273.s1.nabble.com/Macro-code-to-fit-a-spline-to-two-segments-tp5009069p5009342.html

Dear Olivier, yes indeed if you vave the image coordinates ofA B and C you have :

AB^2 = (xB-xA)^2+(yB-yA)^2
also:
AB^2 = (xB-xA)^2+(d/2)^2

the same for

BC^2 = (xC-xB)^2+(yC-yB)^2
BC^2 = (xC-xB)^2+(d/2)^2

For angle :

d/2 = AB*sin(alpha)

alpha = arcsin(d/2 / AB)

beta = arcsin(d/2 / BC)

Hope it helps...


Leon



Le 25 août 2014 à 21:12, olivier a écrit :

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