Topic: arx vectors help

[ckulhanek]

can someone give me a brief rundown on AcGeVector2d and 3d. I don't get it. When I create one, i'm passing in...  what?  Points? And how does the function create a vector from this? I don't understand. Thanks for help.

-ck

[Swift]

a vector is the difference between two points, or how do i get from pt a to pt b.

 think of it as an autocad command
line
10,10,10
@5,5,5 // vector
the resulting point is 15,15,15

The AcGeCeVector2d and 3d are both based from the origin

[ckulhanek]

so, it's the sum of the points, actually, is the new point location, from the origin. And the vector, is distance, from 0,0,0.  Interresting.

a vector is the difference between two points, or how do i get from pt a to pt b.

 think of it as an autocad command
line
10,10,10
@5,5,5 // vector
the resulting point is 15,15,15

The AcGeCeVector2d and 3d are both based from the origin

[Swift]

MickD has an article on vectors around here, perhaps you need to give that a read

[MickD]

Welcome aboard ckulhanek!
have a look here -> http://www.theswamp.org/index.php?page=16 for a brief article on vectors, there's another one around there too.