how can i calculate the distance between a point and a plane?
the segment that calculates the distance must be perpendicular to the plane and I’m not able to create it perpendicularly…
Thanks!
A very simple method is to transform the point in the plane’s coordinates system as it is shown in this example in the script repository. The distance from the plane is the third coordinate of the point in the plane coordinate system (point_Plane[2]).
1 Like
hi , could you please elaborate more on this , after copying the script and past it in the python console, how can I get the measurement? how can I define the point and the plane that I want to measure the distance between them ?
print(point_Plane[2])
You can place a point and plane markup using Markups module. Let us know if you have difficulty figuring out how to do it.
Thank you for your reply, but I still do not know how to apply this script on python console , so for example; in markups module, I establish a Plane named P and a Point named M . So the script on python console would be " print(point M _Plane[ P ]) " ? is this the way to deal with python script ?
You can see that the point list in the example is called P, so you either need to rename your point list in to P or change the name in the code from P to the actual name of your point list.
I added a code snippet to the script repository that prints the points-to-plane distances (point_Plane[2]) - see here.
1 Like
Thank you so much , it works perfectly, appreciate your help.
May I ask , most of the time I make planes by defining points on specific anatomic land mark by " markups module" then use “Angle planes” module to construct the plane, is there a code snippet to do the same calculations as if the plane is constructed by " Markups Module "?
I tried the code snippet you added on planes constructed by " Angle planes" module, but it did not work
You can place a plane on anatomical landmarks by fitting it to points. It is available in Markups module / Plane settings / Type → Plane fit.
1 Like
Thank you so much , it works very well
1 Like