Hi;

I would like to get the @ptnum attribute from a geometry's points and put them in an array, using point wrangle.
Here is my codes but it doesn't works:

Here is output :

That doesn't work for multiple reasons. point() is for getting a point attribute value, but you have specified ‘ptnum’ as the name of the attribute, which wouldn't normally exist, unless you had created it beforehand. point() returns a type based on the type of the left hand side, which in this case is int[]. Since point found no matching attribute, it returns the null value, which for arrays, is an empty array.

If you want an array containing all of the points, you would need to construct a loop, bounded by the number of points in the input, and each iteration append the iterator value to the array.


Edit:

or if you are lazy:

Hi jsmack;
When I use your code (I mean "i@pts = expandpointgroup(0,“”);") the result is like this image, and this is not what I want:

I know that I can put an “attribute create” before “Point Wrangle” to create a new point attribute and fill it with @ptnum.
How could I do same thing in “Point Wrangle”?

I tried to use this code:
But it doesn't work…

Hi,

Is one of these examples coming close to what you want to achieve?

Thank you Aizatulin;

I found these codes in your post that helped me:

if storing the @ptnum value in an attribute is all you need you can just use