How to get distance between point and line and get z value ( z axis)

Lists-Logic
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1

Hi!
I have a line x and 2 point a,b. How to get distance of point to line and get (+) or (-) of value.
I tried use node Geometry.Distance but get only value.

In image, line x is above point a: distance = +205
line x is under point b: distance = -617

Thank Advance!!!

image
image1161Ă—571 62.5 KB

2

hello, you make the difference of your projected points in Z (pt.proja-pt.a)

Cordially
christian.stan

2 Likes
3

Hi christian

Thank you!!!

image
image1130Ă—789 55.8 KB

1 Like
4

But this is case not good
I dont know why distance very big

image
image1023Ă—629 37.1 KB

5

here is an example

15 Decembre forum anglaisrep2_2022-12-15_11-29-25
15 Decembre forum anglaisrep2_2022-12-15_11-29-252734Ă—1516 273 KB

Cordially
christian.stan

1 Like
6

Hi @manhgt214

You can use Vector.ByTwoPoints and compare their direction.
Also you can get coordinate values from vectors, so if the distance is an Height value, for example, you can use the Vector.Z node to get its value. Depending on it direction you’ll get a positive ou negative value.

2 Likes
7

Hi
try this script

image
image911Ă—535 118 KB

image

you need to use “BriMohareb_23” Pakege

distance between point and line.dyn (43.7 KB)

1 Like
8

Thank you!!

But I think can solved with solution of Mr.Christian.

2 Likes