topic Re: Object Origin Keeps Moving in Libraries & objects

Object Origin Keeps Moving

Anonymous — Tue, 27 Apr 2004 21:48:24 GMT

I have written an object in which the lower-left corner is the anchor for the object. Using hotspots on the top and right, you can stretch it in the X or Y directions on the floor plan. However, I set limits on how small the object can be stretched with code lines such as the following:

IF A < 30" THEN PARAMETERS A = 30"

Whenever this line kicks in, the object resizes, but it moves the lower left corner, keeping the position of the hotspot that was dragged. How can I lock the position of the lower left corner? I only want that corner to move if the user explicitly selects its hotspot.

Re: Object Origin Keeps Moving

Anonymous — Wed, 28 Apr 2004 00:00:15 GMT

Jay,
Is there a particular reason you want to use the "Parametes" command?
Wouldn't writing in the Master Script if A<30" then A=30" do the job?
Peter Devlin

Re: Object Origin Keeps Moving

Anonymous — Wed, 28 Apr 2004 00:06:06 GMT

Try using the RANGE setting. Such as:

VALUES `A` RANGE [30, 1000)

This has the cool effect of snapping automatically to permitted values. It's fun to play with and actually pretty useful too.

Re: Object Origin Keeps Moving

Anonymous — Wed, 28 Apr 2004 01:06:10 GMT

Jay,
Matthew is right the "values" command does the job.
Peter Devlin

Re: Object Origin Keeps Moving

Anonymous — Wed, 28 Apr 2004 15:23:29 GMT

Matthew wrote:
Try using the RANGE setting. Such as:

VALUES `A` RANGE [30, 1000)

Not quite what I was looking for. Perhaps a better explanation of what I'm trying to do.

The GDL I'm building will draw restroom stalls that conform to ADA. If you stretch the object in the A direction, you get more stalls and/or urinals. I want to keep people from stretching it smaller than an ADA compliant stall. So I used the simple statement "IF A < ada_min THEN PARAMETERS A = ada_min". Unfortunately, when this line of code executes it doesn't reposition the hotspot I was just dragging, it moves everything else (see graphic).

How can I get the hotspot labeled "H1" to stay where it is unless it is the hotspot being edited?

Re: Object Origin Keeps Moving

David Larrew — Wed, 26 May 2004 16:14:10 GMT

Jay,

To fix your specific problem try this:

IF A < 30" THEN A = 30"
PARAMETERS A = A

Or/And...

IF A < ada_min THEN A = ada_min
PARAMETERS A = A

Be sure this is in the "Master Script"

Re: Object Origin Keeps Moving

Anonymous — Wed, 26 May 2004 16:26:30 GMT

I think you will have problems as long as you use the A parameter. ArchiCAD automatically adjusts the overall part based on A and B values and assumes that the last place the user clicks is important (not a mistake). If I am wrong, I would love to know how to control this.

You can get the result you want with an active hotspot (the diamond shaped type programed into the GDL).