## New to DC: topic for my simple questions to the pros

### New to DC: topic for my simple questions to the pros

Hi guys, I'm sorry to bother but i recently started fiddling around with DC and I really find very difficult to learn, the documentation is in my opinion very poor, and it's odd for the potentiality this tool hase...

I'm sad to bother but I have to ask you some very basic questions about them..

First thing would be...the NEAREST function.

I have followed the very simple self-paced tutorial found on the warehouse, but the function doesn't work at all, even if I replicate exactly the tutorial. I don't know why but when I scale along the X axis my cubicle the results are unpredictable. Sometimes it works, sometimes it does not. It's starting to be very frustrating... Can anybody please point me what I am doing wrong?

My aim here is to force the scaling on the X axis to given lengths (what i understand is that the NEAREST function returns the closest valued between the ones specified in the formula)

Thank you in advance! and SORRY again!
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pibuz

### Re: New to DC: topic for my simple questions to the pros

the problem is current returns inches for size and position, so one has to convert for centimeters
a known bug

=NEAREST(CURRENT("LENX")*2.54,100 ,500)

this is the same for facearea, you have to convert with 2.54*2.54, (/10000 for meters)

https://help.sketchup.com/en/sketchup/d ... n-examples

Capture.JPG
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Last edited by pcmoor on Sat Dec 08, 2018 10:33 pm, edited 1 time in total.

pcmoor

Thank you a ton!
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pibuz

### Re: New to DC: topic for my simple questions to the pros

Ok guys another question: I'm trying to use the optionindex parameter but it returns -1.

I'm trying to assign a specific itemcode given the length of the bar, which I can choose among a list. So I thought to unite CHOOSE and OPTIONINDEX to make it work, but OPTIONINDEX returns "-1" for LenX, and I can't figure out why.

Thanks in advance again!
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pibuz

### Re: New to DC: topic for my simple questions to the pros

optionindex works in the same level, You can not pass it using parent! OR CU_barra_4x12!

In theory using a list and "lenx" should work, but it does not. This may be due it being an unaccustomed attribute. You have found an inconsistency or bug, however, will have to do a workaround, nominate a attribute "Lunghezza" and use that for the list and optionindex works. Then assign lenx to this Lunghezza attribute
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pcmoor

### Re: New to DC: topic for my simple questions to the pros

Pcmoor, thank you a lot for the time you're spending to explain me how it works!

...however, in the model you uploaded the stretching along the X axis is locked to the value you select from the list. Instead, I'd like to be able to stretch the component locking some known measures (see the embedded NEAREST function), and ALSO have the possibility to choose a lenght from a list.

In both cases, I get a defined length; in the end, I'd like to link that known lengths to codes (possibly with the CHOOSE/OPTIONINDEX functions which I find to be more direct or with an IF function, if needed)
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pibuz

### Re: New to DC: topic for my simple questions to the pros

place an option to use scale in the dropdown list, as you suggested, use a conditional statement in the lenX formula to reflect the choice, say if index=1, then current and nearest, else the fixed length selection.
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pcmoor

### Re: New to DC: topic for my simple questions to the pros

Wonderful, pcmoor! I'm learning a lot! Thank you so much!

I fear I will bother you again and again sorry!
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pibuz

### Re: New to DC: topic for my simple questions to the pros

Hi again! And sorry to bother.. I'm here with a little more complex topic, I'm going to explain..

I'm building a new DC which is a wooden panel, which can be coloured with any color on both front and back face. Colours on the two faces may be the same or differ.

I'm looking for a way to colour separately the two faces, and also to have an attribute reporting the name of the materials used. The aim here is to get a report which can tell me how many square meters I'm using of whatever material I applied.....

Is there a way to do this? or any kind of workaround?

MANY THANKS IN ADVANCE!
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pibuz

### Re: New to DC: topic for my simple questions to the pros

There a few things you need to consider

Scaling a material / face does not automatically update FACEAREA, here are some ways to get produce the result you may require.
1. Calculate the area from the input, works for simple shapes, like with the door face, height * width
2. Use FACEAREA, then after any operation, (you may need to make the component unique if their are others) scale definition then redraw.
3. Incorporate a small "scaler" DC, a technique introduced by TIG, that is say a xy 10mmx10mm sample of any material, set x=1,y=1 and hidden. This then resets the material to scale and any FACEAREA calculation. This however conflicts with the internal DC copies sizes, so provided you do not need the use of copies that have different sizes from each other, then it is the best method
viewtopic.php?f=289&t=66642

Texture materials need to be added to a DC as swatches, as Sketchup does not automatically load them even if correctly named in the DC.
https://help.sketchup.com/en/sketchup/d ... attributes

You can use named colors directly without swatches as per chart at http://ruby.sketchup.com/Sketchup/Color.html

You need to consider how the user will interact with the pallet, for large number, it seems impractical to load all to the DC, so an exposed sample point maybe the solution: say, use generic swatches named doorfront, doorback, dooredge, benchtop, benchedge......this would be in a global DC, that the other DCs would reference in a template. The user would select by dropping the appropriate colors/material to the global DC. Ideal to switch and compare paint selections.

So it depends on the scope of the project, simple DCs loaded to the warehouse would have color codes and/or material textures added with swatches. Whereas a room design/kitchen could be based on the template with global options, as such, it will need some simple ruby scripting to update all the parts (redraw).

Material selection in a DC is to a group or component, not a face. So coloring different faces with attributes is not possible. You could pre-color a back face for calculation purposes though. But you need the "scaler" to automate the area calculation. Then with the material selection the rest would change. For edges of different materials, you would have to make then separate groups or components as you see fit. (note: groups are automatically cleaned from the file and components are required if you need to swap)

example attached
can paint any material
has swatches of some edge alternatives, some color, and option to match top (note use of equals in the value part of the dropdown, plus quotes around the material
the component surfaces have hidden "scalers" embedded.
the area calculated from a red painted surface
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pcmoor

### Re: New to DC: topic for my simple questions to the pros

I add some attributes to your example, the door FACEAREA is done on the front rectangle, divided by 2 as to remove the backface from the calculation, Because its not the parent, it requires a redraw after the change in size for the parent to update its value.
There are two external group DCs to which the door references to change its material, change these and after a redraw the door changes
You can set a short cut to the redraw to make life a bit easier, but a small script would be best, so all components are up to date after the changes
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pcmoor

### Re: New to DC: topic for my simple questions to the pros

Some ideas for the carpet in your warehouse page,
standard colors
you need to match then closer, maybe use the RGB values
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pcmoor

### Re: New to DC: topic for my simple questions to the pros

Pcmoor, you're very kind...Thank you so much!!

I unfortunately have been derailed to other urgent matters, so I'm now back with another question on materials. I almost got the panel work the way I'd like it to work.

Basically, I set fixed values for length and height for the user to change from a list, and this is perfect. Now, the two faces may be painted with whatever colour we want, so I thought to make two different inner components with inner faces painted with defaul material. This way, if I get INTO the main component and apply whatever material to my 2 faces (even separately) I get the applied material name being showed up in the "Material" attribute.

I have now two attributes related to the applied material name (CODICE, and FIN_PARETE), and it's crucial for me to have these two attributes updated after I apply a new material. At the moment, I get the material attribute to be updated, but I need to manually change the dimension of the panel to have the linked attributes updated.

Is there a way to automatically update the related attributes?

Many many thanks in advance!
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pibuz

### Re: New to DC: topic for my simple questions to the pros

Hi again! I have discovered the "redraw" command (which I did not know at all), and it seems to be intuitive enough for my colleagues to use

Another question for the pros: in the attached component I set an onclick function on the two coloured faces: when you click on a face it is set to HIDDEN. That works perfectly, but when I copy that same component the onclick action operates on the original component, and I don't understand why...

Can you please point me to the solution?

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pibuz

### Re: New to DC: topic for my simple questions to the pros

copying does not make the item unique, so a connection exists until its broken usually by changing a size. So right click an make unique before the interaction
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pcmoor

### Re: New to DC: topic for my simple questions to the pros

hi again! Is there a way to insert a formula depending on the fact the result of an operation is an integer number? something like: IF LENX/LENY IS AN INTEGER NUMBER THEN WRITE 1,0.

I know how to use the If function, but i don't know if there's a way to check an integer number...

Thanks a lot!
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pibuz

### Re: New to DC: topic for my simple questions to the pros

you can check for the remainder and if none then must be an integer

=if(lenx/leny - int(lenx/leny),0,1)
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pcmoor

### Re: New to DC: topic for my simple questions to the pros

Thank you sir! Gonna test asap!!!
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pibuz

### Re: New to DC: topic for my simple questions to the pros

Hi again! i have a new small issue: I have a basic Dynamic Component which can be edited in its inner parts. I just want the dynamic component to report the size of its bounding box, depending of the things I put inside. In the component attributes, window the LenX LenY LenZ parameters correctly update when I add/move things inside the DC, but if I link to those values three different addributes ("length"=LenX, "width"=LenY, "height"=LenZ) I have to REDRAW the components if I want the values to update. Is there a way to update automatically?

THANK YOU IN ADVANCE AS SUSUAL!
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pibuz

### Re: New to DC: topic for my simple questions to the pros

Most likely you need to do a redraw, you can set a short cut key to it provided you have a component selected.
Another method is to set a ruby script to a button
https://forums.sketchup.com/t/redraw-al ... ents/77512

You probably need to use some ruby to overcome the shortcomings of DCs
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pcmoor

### Re: New to DC: topic for my simple questions to the pros

Bummer... Thanks a lot by the way!
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pibuz

### Re: New to DC: topic for my simple questions to the pros

Hi again!
..I am wondering: is there any way I can make a list option in a DC to be displayed in red?
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pibuz

### Re: New to DC: topic for my simple questions to the pros

You can alter the font on component info attributes and labels, not values using syntax as per
https://help.sketchup.com/en/sketchup/d ... -html-tags

you can change via formula as per example, so a particular value could set up a warning in the info section
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pcmoor

### Re: New to DC: topic for my simple questions to the pros

Hi Moor! Thank you very much for your support!

I've encountered another issue: I need to "cut" holes into a cloth sheet. Basically, I decide the cloth dimensions and, based on that, a series of holes must appear for it to be fixed to the surrounding structure. I observed that the "cutting component" works, but its copies do not.
Is there a way to fix this?

THANKS A LOT!
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pibuz

### Re: New to DC: topic for my simple questions to the pros

you basically create a cutting component within another cutting component

viewtopic.php?f=180&t=67635&hilit=+hole
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pcmoor

### Re: New to DC: topic for my simple questions to the pros

Thank you very much! After a little hassle I found my way!
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pibuz

### Re: New to DC: topic for my simple questions to the pros

Hi again! I have an issue with the attached dynamic component: I can't figure out why I don't get the lower plane length to be updated if I change the length AFTER the copies are done. Seems like the lemgth parameter doesn't apply to the copies.... Does anyone have an hint or me?
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pibuz

### Re: New to DC: topic for my simple questions to the pros

to overcome (workaround) this issue you can collect the geometry into another component then reference the current state of the size property

When experiencing problems with rotation or sizes< I have found that adding another "shell" isolates and protects the contents from SketchUp making unwanted updates.

The encasing and reference to a current value is the basis for creating components that can be swapped so their current size properties are retained. Like a timber beam with a length in say lenx, can be swapped with a steel beam and their lengths match. Of course you would not want this to to happen when you swap a toilet for a basin, which is the behavior that is built into the DC code and what you are experiencing.
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pcmoor

### Re: New to DC: topic for my simple questions to the pros

Thanks a lot Moor! I'm going to keep this in mind!
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pibuz

### Re: New to DC: topic for my simple questions to the pros

Hi to all! I have a small issue regarding materials and custom material libraries, not specifically DCs, but I thought to post here not to add another topic.

I am currently trying to save skm materials from the models I'm making, so that it's easier to reuse them in other models. I work with a template which loads some standard materials, say for example a pure 255 white called "white cloth". If I make a component in a new file with another perfect white material named "white plastic" and I import the model into the template model file everything works ok: the second material is added to the home library of materials. If instead I have "saved as" my white plastic material in a custom skm library, whenever I try to paint it to an object which is into the template model it gets automatically substituted by the white cloth material. Is there a way to fix this?
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pibuz