comp.lang.idl-pvwave archive: archive

Home » Public Forums » archive » matrix operation

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

matrix operation [message #74103]

Thu, 23 December 2010 06:39

Gray
Messages: 253
Registered: February 2010

Senior Member

Hi all,

I'm just getting really confused about how to do this properly. Can
you all help?

I have a list of x y coordinates, and I want to perform an affine
transformation on them, so I have a 3xN array of (xi,yi,1) and a 3x3
matrix for my transformation, and I want to end up with a 3xN array of
(x'i,y'i,1). How can I transform all my coordinates at once? I know
my tools are #, ##, transpose/reform, and matrix_multiply, but I seem
to be chronically unable to sort this out. Thanks!

--Gray

Report message to a moderator

[Message index]

matrix operation

By: Gray on Thu, 23 December 2010 06:39

Previous Topic:	Perspective view when using IDLgrPolygon
Next Topic:	Re: Perspective view when using IDLgrPolygon

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Dec 03 00:11:46 PST 2025

Total time taken to generate the page: 1.52360 seconds