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Help regarding pop-push of a LIST

Neeraj Vardhan

Hi,

I was trying to save my path coordinates as a list. But when i was trying to print the list of points, got errors "unbound variable-plist" . the code is mentioned below.

 

procedure(nvToGetMyLocation()

let((point plist)

cvw=getCurrentWindow()

point=hiGetPoint(cvw)

plist=append(plist list(point))

print(point)

print(plist)

); let

); procedure_nvToGetMyLocation

 

Parents

  • As Andrew said, nvMyDirection is not going to execute because p_list is a local variable in nvGetMyLocation. That is what the declaration in the prog statement does. The value is only available within the dynamic scope of the function (the function and all it the functions it calls). The variable does not exist at the interpreter level of when inside nvMyDirection. I would probably return the value from nvGetMyLocation and use that as the input to nvMyDirection.

     Look at your print values. Each one is the point and the a list containing only that point. There is nothing accumulating the data. It is better to use println or printf( "%L\n" ...) for your print statement so it will print on each line.

    Also, n (in the n++ statement) is a global variable.

    Ted

Reply

  • As Andrew said, nvMyDirection is not going to execute because p_list is a local variable in nvGetMyLocation. That is what the declaration in the prog statement does. The value is only available within the dynamic scope of the function (the function and all it the functions it calls). The variable does not exist at the interpreter level of when inside nvMyDirection. I would probably return the value from nvGetMyLocation and use that as the input to nvMyDirection.

     Look at your print values. Each one is the point and the a list containing only that point. There is nothing accumulating the data. It is better to use println or printf( "%L\n" ...) for your print statement so it will print on each line.

    Also, n (in the n++ statement) is a global variable.

    Ted

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