vex What is the difference between npoints() and point()?

[RustyMac2020]

Hi all 

I'm currently using VEX to do some scripting, I was just wondering what the difference between these two functions 'npoints()' & 'point()' were?

[ThomasPara]

npoints() gives you the number of points the input have.

point() can give you an attribute value from a specific point.

If you write the function in vex you can put your mouse over the function and hit f1, then a helpcard will tell you what it does.

[RustyMac2020]

34 minutes ago, ThomasPara said:

npoints() gives you the number of points the input have.

point() can give you an attribute value from a specific point.

If you write the function in vex you can put your mouse over the function and hit f1, then a helpcard will tell you what it does.

Hi I just checked it out, it says that npoint() function Returns the number of points in the input or geometry file. and the point() function reads a point attribute value from a geometry. Another question I wna ask with The point() function, is what would be a attribute value of a specific point? do point hold attributes? and if so what are they?

Kind Regards

Ahme.B

Edited November 12, 2019 by RustyMac2020

[symek]

Hi RustyMac2020, 

may I give you a polite suggestions to: 

- give your threads a correct descriptive titles (like the one above instead of the original "What is the difference?")

- avoid asking about things directly described in relevant documentation (like what does a given function)

- avoid collapsing many unrelated topic into single thread

- finally start using spell checker

 

 

These are not to make life of a novice user harder, but to lower noise level and make public forum more useful.

Thanks!

btw documentation chapter about attributes (what they are and so forth):

https://www.sidefx.com/docs/houdini/model/attributes.html