topic Re: Update parameters programmatically. in Libraries & objects

Update parameters programmatically.

Anonymous — Mon, 14 Jun 2010 06:57:20 GMT

Hi! How update parameters programmatically? Is it possible?
e.g.

if (scaleValues=1)  then !Scale with plan
	Text2 0,1, "Scale with plan"
	Parameters LastScale=0
	LastScale=0
endif

if (scaleValues=0)  then !Scale independent
		Text2 0,1,LastScale
			if ABS(LastScale-GLOB_SCALE)>0 then
				parameters LastScale=GLOB_SCALE 
				LastScale=GLOB_SCALE 
			endif
		Text2 0,2,LastScale
Endif

Thank you!

Re: Update parameters programmatically.

Ralph Wessel — Mon, 14 Jun 2010 08:58:21 GMT

Beart wrote:
Hi! How update parameters programmatically? Is it possible?

Yes, that's no problem. I haven't tested your code snippet, but it looks OK. Just make sure it is part of the Parameter script. The parameters command will only work in certain contexts, e.g. in response to editing.

Tip: Either type GDL commands in all lower case or all upper case, but don't use both or (worse still) mixed case. The latest standard recommends all lower case. Consistency makes for good reading, which will make your life easier.

Re: Update parameters programmatically.

Anonymous — Mon, 14 Jun 2010 14:17:28 GMT

OK, Ralph. Thanks!

Ralph wrote:
Yes, that's no problem. I haven't tested your code snippet, but it looks OK....

But it does not work…Can you tell me correct code when object rescaling(Scale independent)?

Re: Update parameters programmatically.

Ralph Wessel — Mon, 14 Jun 2010 15:43:29 GMT

Beart wrote:
But it does not work…Can you tell me correct code when object rescaling(Scale independent)?

I'm not sure what you're aiming to do, but all you need is something like this:

if (scaleValues) then !Scale with plan
	mul2 GLOB_SCALE, GLOB_SCALE
endif
rect2 0, 0, a, b
if (scaleValues) then
	del 1
endif

The above code draws a box either to the literal object width/depth, or optionally multiplies it by the current scale remains the specified size on the printed sheet.

Re: Update parameters programmatically.

Anonymous — Tue, 15 Jun 2010 06:51:30 GMT

I need a Request, (operator, macros-maybe) for "auto-update" the parameters.

Re: Update parameters programmatically.

Ralph Wessel — Tue, 15 Jun 2010 14:14:16 GMT

Beart wrote:
I need a Request, (operator, macros-maybe) for "auto-update" the parameters.

You don't need this. ArchiCAD will automatically run the object's 2D script whenever the scale changes.

Re: Update parameters programmatically.

Anonymous — Tue, 15 Jun 2010 16:25:53 GMT

OK. Ralph. Look at this object "Bow" and Scale it independent (Paper Size), please.

!============================= 
! Parameters
A=1000
B=1000
tx=1000 (length)
ty=1000 (length)
!===============================
!Parameter Script
values "ty" range (0,]
values "B" ty,  -ty
values "A"  range (0,], range [,0)
values "tx"  range (0,]
!===================================
!2d Script
unID=1
hotspot2 0, 0, unID, A, 1+128, A:	unID=unID+1
hotspot2 1, 0, unID, A, 3+128, A: unID=unID+1
hotspot2 -A, 0, unID, A, 2, A: unID=unID+1
hotspot2 0,B
if symb_rotangle>89.999 and symb_rotangle<269.999 then
	rot2  180
	hotspot2 0, -ty, unID,  tx,  1+128   : unID=unID+1
	hotspot2 -tx+unit0, -ty, unID,  tx,  2    : unID=unID+1
	hotspot2 1, ty, unID,  tx,  3    : unID=unID+1
	hotspot2 -tx+unit0, 0, unID,  ty,  1+128   : unID=unID+1
	hotspot2 -tx+unit0, -ty, unID,  ty,  2    : unID=unID+1
	hotspot2 tx+unit0, 1, unID,  ty,  3    : unID=unID+1
	else
		hotspot2 0, ty, unID,  tx,  1+128   : unID=unID+1
		hotspot2  tx, ty, unID,  tx,  2    : unID=unID+1
		hotspot2 -1, ty, unID,  tx,  3    : unID=unID+1
		hotspot2  tx, 0, unID,  ty,  1+128   : unID=unID+1
		hotspot2   tx, ty, unID,  ty,  2    : unID=unID+1
		hotspot2  tx, -1, unID,  ty,  3    : unID=unID+1
endif
del top

line2 0,ty,tx,ty
line2 0,0,0,ty
line2 0,0,-A,0
line2 -A,0,tx,ty

Re: Update parameters programmatically.

Ralph Wessel — Tue, 15 Jun 2010 16:54:26 GMT

Beart wrote:
OK. Ralph. Look at this object "Bow" and Scale it independent (Paper Size), please.

Before going any further, can you explain what you are trying to accomplish, i.e. what should this object do and how does it interact with the user?

Re: Update parameters programmatically.

Anonymous — Wed, 16 Jun 2010 12:04:20 GMT

Ralph wrote:
Before going any further, can you explain what you are trying to accomplish, i.e. what should this object do and how does it interact with the user?

Look at animated gif-pictures.

Re: Update parameters programmatically.

Ralph Wessel — Sun, 20 Jun 2010 12:21:27 GMT

Beart wrote:
Ralph wrote:
Before going any further, can you explain what you are trying to accomplish, i.e. what should this object do and how does it interact with the user?
Look at animated gif-pictures.

OK, I think you are trying to make an object that is based on a fixed size (on the printed page), but can be stretched on screen (using the active units/scale).

The key to this is realising the most important parameter is the size of the object on the printed page. When you display the object in 2D, the output size (and the position of the hotspot positions) is determined by multiplying this figure by the current scale. If the user resizes the object, you need to recalculate the size on the printed sheet by dividing the size in the model by the active scale. And - relating to your original question - this calculation should be done in the Parameter script, using the GDL parameter command to ensure the change is permanent.

Re: Update parameters programmatically.

Anonymous — Sun, 20 Jun 2010 19:53:28 GMT

Beart wrote:
Look at animated gif-pictures.

Nice looking object. We should have that graphical appearance option for elevation dimensions (with half white - half black triangle) built right into AC.
Can you please share this object when you finish it? Thank you!

Cheers,
Adrian Tudoreanu

Re: Update parameters programmatically.

ztaskai — Wed, 07 Jul 2010 20:54:29 GMT

Hi Beart,

How did you proceed with the object? Should we help you further? I got especially interested in this problem as connecting two parameters could be a great example for all GDL beginners. Handling scale is a pretty common problem, too. It would be nice to close this thread with a solution.

Regs,

Re: Update parameters programmatically.

Anonymous — Sun, 11 Jul 2010 16:34:11 GMT

Hi, ztaskai. I would appreciate your help.

Updating parameters can started:
- If user use parameter of the element
- If user opening window of the object's parameters

Is it possible to doing otherwise way?

Re: Update parameters programmatically.

Anonymous — Sat, 17 Jul 2010 15:16:22 GMT

adytc wrote:
Beart wrote:
Look at animated gif-pictures.
Nice looking object. We should have that graphical appearance option for elevation dimensions (with half white - half black triangle) built right into AC.
Can you please share this object when you finish it? Thank you!

Cheers,
Adrian Tudoreanu

ztaskai wrote:
Hi Beart,

How did you proceed with the object? Should we help you further? I got especially interested in this problem as connecting two parameters could be a great example for all GDL beginners. Handling scale is a pretty common problem, too. It would be nice to close this thread with a solution.

Regs,

"BeArt Level"
http://archicad-talk.graphisoft.com/object_depository.php?browse=Depository/01%20General/Graphic%20Symbols

Re: Update parameters programmatically.

ztaskai — Tue, 20 Jul 2010 16:45:47 GMT

Beart wrote:
Hi, ztaskai. I would appreciate your help.

Updating parameters can started:
- If user use parameter of the element
- If user opening window of the object's parameters

Is it possible to doing otherwise way?

Hi Beart,

Sorry, I lost this thread when my computer shut down in a blackout.

Basically, yes. All possible triggers for executing the parameter script are listed in Section 4.4 of the GDL Technical Standards which is a part of the Basic Library Documentation ( http://www.graphisoft.com/support/developer/documentation/LibraryDevKit/ ). From AC14, there is one more addition on top of that: the parameter script of zone stamps is run at 'Update Zones' in case the base values of the zone are changed. I'll add that to the online documentation soon.

Best regards,

Re: Update parameters programmatically.

Anonymous — Tue, 20 Jul 2010 22:02:22 GMT

Hello Zsolt,

ztaskai wrote:
the parameter script of zone stamps is run at 'Update Zones'

Thanks for this.

Just want to verify that the master script is not run at zone update?

Regards, Juha

Re: Update parameters programmatically.

ztaskai — Wed, 21 Jul 2010 07:41:57 GMT

Hi Juha,

Juha wrote:
Just want to verify that the master script is not run at zone update?

This should be answered in general. Master script is never run on its own and no script is run without it. You can imagine it as if the master script was copied at the beginning of each script. As a consequence, - in the context of parameter scripts! - the master script will be run exactly as many times as the parameter script itself; which number is determined by the changes caused by the parameter script.

Cheers,