Error When Getting String

Maya
1

hey guys-

I am writing a new proc, and I think I am doin everything right, but I get an error:

// Error: Cannot convert data of type string[] to type string. //

here is the code

CODE
string $selected[] = ls -sl -fl -type joint;
string $shoulder = $selected[0];
string $wrist = $selected[1];
string $elbow = listRelatives -c $shoulder;

when I run the size command on $shoulder I get 6, but I am expecting one? Any ideas.. One more question while I am here. If I call CODE
listRelatives -c $shoulder

and there is only one direct child shouldn't I get a string and not a string array? Or does it include grandchildren ect. I thought that was the function of the -allDescendants flag.

Thanks for your help.

Scott

2

ok.... so its wierd to post to my own topic, but I found my silly mistake, but I am unsure how to correct it. When I declared the $shoulder variable it designated each letter as its own string, that's why I am getting a string array, (joint2 = size 6 aka 6 letters) How can avoid or resolve this issue?

Thanks

Scott

3

No, you'll always get array because that's the data type the command returns. If there's only one children an array with only one element will be returned.

4

well failure-

i called size on the first variable and got 2 as I expected, but when sizing the second variable I get 6. This shows two different behavors, maybe that's why I am confused.

ie
with two bones selected

CODE
string $selected[] = ls -sl -fl -type joint;
size $selected;
//result 2;

string $shldr = $selected[0];
size $shldr;
//result 6;

the first counts the elements in the array (ie. joints), and the second counts letters in strings..... is that normal?

thanks

Scott

5

just assign element 0 of the array to a regular string variable

CODE
string $selected[] = ls -sl -fl -type joint;
string $shoulder = $selected[0];
string $wrist = $selected[1];

string $children[] = listRelatives -c $shoulder;
string $elbow = $children[ 0 ];

So string array is just a collection of regular string variables. Each element of array that is acessible by [] notation is in fact a simple string.

6

QUOTE(sheriffcicada @ 01/04/06, 12:57 AM)
the first counts the elements in the array (ie. joints), and the second counts letters in strings..... is that normal?

Yes. As far as size command is concerned a simple string is just an array of characters. But don't get confused - in most other cases you can't treat a string as an array (including bracket syntax for accessing individual characters)

7

Thank you failure-

I should have known this, and I thought I had tried it, but it works fine now. you are the man!!

I'll post the workin script once I get it done.

Scott

8

RTFM!
The maya docs say it loud and clear:

This command returns the number of elements in an array or the number of characters in a string.