topic Re: For To Next array in GDL

For To Next array

Alex C — Tue, 24 Sep 2024 08:21:51 GMT

Hi, I am getting trying to get into GDL and wanted to try and create a simple object of a rectangle with an adjustable amount of divisions and border. I attempted to reverse engineer the "DET_Layout_Template" object that comes with archicad but I am having trouble getting my For To Next command to actually repeat and move.

FOR i = 1 to divx STEP 1 GOSUB 3050 !Column of boxes ADD2 lw,0 NEXT i END !======================================= 3050: FOR i = 1 TO divy STEP 1 POLY2_B 5, 3, flpen, flbkpen, 0,0,1, lw,0,1, lw,lh,1, 0,lh,1, 0,0,1 ADD2 0, lh+munt NEXT i RETURN

This is what I have for my script.

add2 -ModW,0 for i=1 to MN2 step 1 gosub 3050 ! display column of boxes add2 -ModW - psGapX ,0 ! advance to next column position next i end ! ========= Subroutine to display column of module-sized boxs 3050: mnh=mn1+1 repeat pen 99 hotspot2 0, 0 hotspot2 ModW, 0 hotspot2 0, ModH hotspot2 ModW ,ModH pen 95 rect2 0, 0, ModW, ModH ! Hotlines on rectangle for easier snapping hotline2 0, 0, ModW, 0 hotline2 ModW, 0, ModW, ModH hotline2 ModW, ModH, 0, ModH hotline2 0, ModH, 0, 0 pen 92 line2 0, 0, ModW, ModH line2 0, ModH, ModW,0 add2 0, ModH + psGapY mnh = mnh-1 until mnh = 1 del mn1 RETURN

This is what is in the DET_Layout_Template object, I can't for the life of me figure out how this one gets the subroutine to "advance to the next column position"

Re: For To Next array

Peter Baksa — Mon, 08 Apr 2024 11:23:28 GMT

Hi,

you need to DEL the transformations done in Y direction to start at the same Y coordinate in the next X column.

Re: For To Next array

neilmcallister — Fri, 03 May 2024 23:12:48 GMT

Is there also the problem that "i" is being used for both of the loop counters and one is overwriting the other? If you change the other to "j" or whatever does it then work?

Betreff: For To Next array

Jochen Suehlo — Sat, 04 May 2024 14:08:43 GMT

You cannot use the same loop counter like "i" in nested loops more than 1 time.
If you start your first loop with the counter "i" and then jump to the subroutine with a second loop, you should use there another counter, e.g. "j", otherwise you will get an error message or an infinty loop.
That's why I always use in a loop within a Subroutine double characters as counter, like ii and jj (or i_1 and j_1), and in one subroutine deeper iii and jjj and so on.