How do I correctly set the Length formulas in a DC via Ruby

JH · 18 Dec 2016, 13:13

Hello to all !

After reading a lot of everything that Icould find
on the net which was related to Dynamic Components and Ruby,
and a good Hint from Dan Rathburn , I managed to add
Lenx, Leny and Lenz to a Component I created with Ruby.

But I cannot find out how to set the _lenx_formula,
_leny_formula and _lenz_formula correctly, which means
if I manually enter a value in the DC Dialog it works,
but not if I set the Values from Code thru a simple dialog box.

Any help would be very appreciated

Sample code:

#set the component dictionary
@Component_dictionary = 'dynamic_attributes'

First prompt for the dimensions. This is done using the inputbox

method. In this case, we will actually use a wrapper for UI.inputbox

that is defined in sketchup.rb which does some extra error checking

The first step is to create some arrays which contain the prompts

and default values.

prompts = [("Bemerkung"),("Artikel"),("Laenge"), ("Breite"),("Staerke"),("Kante_links"),("Kante_rechts"),("Kante_oben"),("Kante_unten"),("Belag_Vorn"),("Belag_hinten")]

values = ["BodenDecke","Material1", 600.mm , 400.mm , 19.mm ,"Kante1", "Kante1","","","",""]

results = UI.inputbox(prompts, values, list, "Boden")

lenx_formula=laenge.to_f
leny_formula=breite.to_f
lenz_formula=staerke.to_f

comp1_def.definition.set_attribute @Component_dictionary,'lenx', '_lenx_formula'
comp1_def.definition.set_attribute @Component_dictionary,'_lenx_label', 'LenX'
comp1_def.set_attribute @Component_dictionary,'lenx', '_lenx_formula'

comp1_def.definition.set_attribute @Component_dictionary,'leny','_leny_formula'
comp1_def.definition.set_attribute @Component_dictionary,'_leny_label', 'LenY'
comp1_def.set_attribute @Component_dictionary,'leny','_leny_formula'

comp1_def.definition.set_attribute @Component_dictionary,'lenz', '_lenz_formula'
comp1_def.definition.set_attribute @Component_dictionary,'_lenz_label', 'LenZ'
comp1_def.set_attribute @Component_dictionary,'lenz', '_lenz_formula'

$dc_observers.get_latest_class.redraw_with_undo
(comp1_def_instance)

Jim · 18 Dec 2016, 14:00

Not this:


 comp1_def.definition.set_attribute @Component_dictionary,'lenx', '_lenx_formula'

Correct:


 comp1_def.definition.set_attribute(@Component_dictionary, '_leny_formula', '2*LenX')

Please provide minimal but complete and executable code when asking for help. This means properly indented, properly namespaced, with a menu item, and no Syntax Errors. You will get better help. Also, either attach the .rb file or wrap the posted code in


[code][/code]

tags.

JH · 18 Dec 2016, 14:17

Thank you very mouch,

But this doesnt seem to function properly,
In the Attribute Editor I get 0 instead of a self updating value

Jim · 18 Dec 2016, 14:38

Try this code.

jh_dc_testcode.rb

JH · 18 Dec 2016, 15:27

Thank you Jim,

I think this is a step in the right direction,
bur with the Test code U posted I get the Values in red #
still not updating.
and in the Attribute Inspector it shows some weird errors.

Jim · 18 Dec 2016, 16:03

What is the value you are using to set the attribute? Print it out to the Ruby Console using the p command.

From the image,it could be incorrect decimal separator.

Or you are including the "=" in the formula.

Or try not incuding the units in the forumula.

There are "=" sign in the taxt box but the "Toggle Formula View" is not pressed. The "=" should not be there.

Jim · 18 Dec 2016, 16:18

It looks like you need to do this:


comp1_def.definition.set_attribute(@component_dictionary, '_lenx_formula', (laenge.to_f*2.54).to_s)

But you will need select the conversion factor based on the DC Dialog units. It will either br cm or inches.

JH · 18 Dec 2016, 16:38

Whow!

This seems to work,
Now I just need to take care of the units.
I will post a reply if I get the Script in a usable condition.

It would be nice if You could take a look at it then.

But I don't know when I'll get enough time for this.
Maybe tomorrow, I got 2go and make Dinner, my Girlfriend already has the knife in her hand
and I don't want her to use it on me.

EDIT:
I kept using the initial approach in setting the Lenx to _lenx_formula since
the other way it left me with an unscalable Component, or at best with a scalable component which doesnt show the correct measurements as the corresponding values in the
DC Dialog.
But Hey, Thank You anyway, maybe someone else has use for the Code for another
useful Plugin