User-defined functions in macro

[AAM71]

Dear Listers,

I think I have rather limited understanding of how user-defined functions are working and need some help.
My macro should have procedure function and initialization function to set up parameters for the procedure.
I have tried to do this in the following way (just simplification):

x1=1;
y1=2;

Init(x1,y1);
Type(x,y);

function Init(x1,y1) {
x=x1;
y=y1;
}

function Type(x,y) {
print(x,y);
}
------

But I got the error "undefined variable in line 5", which is "x" in function "Type".
I am definitely doing something wrong, but do not understand what.

Sincerely,
Alex

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[Wayne Rasband-2]

> On Dec 4, 2018, at 5:31 PM, Aleksandr Mironov <[hidden email]> wrote:
>
> Dear Listers,
>
> I think I have rather limited understanding of how user-defined functions are working and need some help.
> My macro should have procedure function and initialization function to set up parameters for the procedure.

Use ‘var’ statements to declare global variables, for example:

   var x, y;

   init(1,2);
   type();

   function init(x1,y1) {
      x=x1;
      y=y1;
   }

   function type() {
      print(x,y);
   }

-wayne

> I have tried to do this in the following way (just simplification):
>
> x1=1;
> y1=2;
>
> Init(x1,y1);
> Type(x,y);
>
> function Init(x1,y1) {
> x=x1;
> y=y1;
> }
>
> function Type(x,y) {
> print(x,y);
> }
> ------
>
> But I got the error "undefined variable in line 5", which is "x" in function "Type".
> I am definitely doing something wrong, but do not understand what.
>
> Sincerely,
> Alex

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ImageJ mailing list: http://imagej.nih.gov/ij/list.html