select points with same x value (or y value or z)

i am reading many posts, but i think it would be faster to make this new one, to solve my problem.
i just need to select the points (from an intersection i just did), but i want to select only the ones which have the same x value, and then make a polyline with them.

so i am spliting points into x,y,z values...but can get a comparisson between values, equality...o what. i don't even know if already tried the right way but made some mistake, so if somebody did it, or know it, i would thank any help.
meanwhile, i will be reading and learning from the other discussions and tutorials

(yeah, i am quite newie...i am fan some months ago, but couldn't practice)

muchas gracias!

Replies to This Discussion

Permalink Reply by javier zaratiegui on July 8, 2009 at 2:27pm

i see...one more thing to learn.any teacher out there in Madrid??
thanks for all.
by the way, did you saw the other way i tried? almost got it...but still the same: good intentions, but can't get to the end properly.

Permalink Reply by to] on July 8, 2009 at 2:44pm

sure i have but same problem
only vbdotnet.....

Permalink Reply by Vicente Soler on July 8, 2009 at 4:21pm

Hola Javier,
Yo estoy dando clases de Grasshopper en Madrid. Si estas interesado, mandame un email a vicente@visose.com y te comento precios, disponibilidad, etc.