how to find the x y z co-ordinates of cv of curve

[glassfairy]

this is mel is not working below

float $loc[] = `getParticleAttr -at worldPosition circle.cv[0]`;
print $loc[0];

what m i doing wrong in it?

[THNKR]

use pointPosition; instead of getParticleAttr;

[glassfairy]

how to count the nos. of cv's in the curve ?