Loop Parameter Reset

[Lingwisyer]

Hi all,

If I have a loop of 1 to N utilising the parameter X=A, where A is some previously defined value, is it possible to pick out when i=G then X=B without needing to save A to a new parameter so that for other steps the original value is still utilised?

Simplified example:

!======THESE TWO LINES CANNOT BE INCLUDED IN THE LOOP======
x = 1
n = 5
!===========================================================

FOR i = 1 to n step 1

	If i = 3 then x = 5
	text2	y,	0,	x

next i

Returns:	1	1	5	5	5
Desired:	1	1	5	1	1

Ling.

EDIT: Clarified that X is outside of the loop.
EDIT 2: Wow... I am really good at manually writing out the correct return figures...

[Lingwisyer]

Start of the script:

d = B - gs_fw_lower - gs_fw_upper - 2 * gs_int_fw				!Louvre space
IF louvre_over <= 0 then							!If NO louvre overlap	
		n = int(d /(gs_louvre_width - louvre_over))
		dp = gs_louvre_width - louvre_over
	ELSE
		dp = gs_louvre_thk / ( cos ( atn ( ( gs_louvre_width - louvre_over) / gs_louvre_thk) ) )
		n = int(d / dp) + 1
endIF

The loop (for one set of conditionals):

FOR i=1 to n

	...

	IF Louvred_sealside = "Both" then
		IF i = 1 | i = n then
			gs_louvre_opening_angle = gs_louvre_opening_max
			gs_louvre_width = sqr((d - (dp * (n - 1) + Louvre_over))^2 - (gs_louvre_thk)^2 ) + Louvre_over
		endIF
	endIF

	...

	cprism_ louvtopmat, louvbotmat, louvsidemat,
		5, gs_louvre_thk,
		-a / 2 + gs_fw_side_right + gs_int_fw,	-(gs_louvre_width) / 2,	_status,
		-a / 2 + gs_fw_side_right + gs_int_fw,	 (gs_louvre_width) / 2,	_status,
		 a / 2 - gs_fw_side_left - gs_int_fw,	 (gs_louvre_width) / 2,	_status,
		 a / 2 - gs_fw_side_left - gs_int_fw,	-(gs_louvre_width) / 2,	_status,
		-a / 2 + gs_fw_side_right + gs_int_fw,	-(gs_louvre_width) / 2,	-1

	...

next i

[A_ Smith]

if it's forbidden to repeat x=1 or use new parameter, n=5 like this:

FOR i = 1 to n step 1
	If i = 3 then x = 5 then
	text2	y,	0,	x
	x=1
	endif
	text2	y,	0,	x
next i

maybe if you know precisely when it occurs just exclude from the loop? (though it looks awful)
FOR i=1 to 2 ...
if i=3 then ...
FOR i=4 to n ...

[Lingwisyer]

A. wrote:
maybe if you know precisely when it occurs just exclude from the loop? (though it looks awful)
FOR i=1 to 2 ...
if i=3 then ...
FOR i=4 to n ...

Doing so would basically double the script length... Easier to just populate a half dozen new variables to my list.

[Peter Baksa]

Lingwisyer wrote:
...parameter X=A, where A is some previously defined value, is it possible to pick out when i=G then X=B without needing to save A to a new parameter so that for other steps the original value is still utilised?

You just said it:

if i = G then X = B else X = A

[Lingwisyer]

Peter wrote:

Lingwisyer wrote:
...parameter X=A, where A is some previously defined value, is it possible to pick out when i=G then X=B without needing to save A to a new parameter so that for other steps the original value is still utilised?

You just said it:

if i = G then X = B else X = A

Was hoping there would be a way that did not involve rewriting a dozen macros to use a dependent variable rather than the independent, and by the sounds of it, there is not so I will be needing to rewrite them at some point.

C = X
A = X

...

if i = G then C = B else C = A

...

*replace X with C in all dependent macros*

Sorry for looking for a lazy way out,
Ling.

[Peter Baksa]

In parameter calls you can assign variables to parameters:

call "macro" parameters A = something, ....

The subsequent calls from "macro" will use the value of something.
If you don't want to write each parameter in the call, write just the modified ones:

call "macro" parameters all, A = something