Loop in Code Block / Designscript

DesignScript
1

I want to create 2 points (1,0,0) and (2,0,0) by using for loop in Code Block / Designscript, but it doesn’t do anything, and there is no error message.

I know how to do it in regular way, but I want to do it by "Loop"

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Loop.dyn (2.8 KB)

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Need to define the results - Return =

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Hi Jacobs,

Like this?

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Nothing shows up and there is no error.

4

Looks as if you still need to append the results onto the list before you return it. Check out this documentation from @solamour’s BiLT class last year.

Also, you don’t need to go imperative in this case - just process the list as you normally would.

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Thanks for the link, just got down to here…

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Edit: Just for the record I did finish it, thanks @solamour great resource!

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@ JacobSmall
If I don’t use Imperative, DY shows error, say it’s can only be used in imperative mode.

@ Mark.Ackerley
I tried to mimic the code in the document, but it doesn’t create any point.

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  1. your assign statement doesn’t make sense - you are assigning a point to a list.
  2. you might be hitting a bug with fully qualified functions in imperative blocks.
  3. when possible - avoid imperative. It’s simply not as robust as the rest of the language, as very few nodes compile to it.
  4. hook up a watch node to see what the output is.

do this:
point1[i] = Point.ByCoordinates(i,0,0)

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Michael_Kirschner2
Thank you for the tips.

" 3. when possible - avoid imperative. It’s simply not as robust as the rest of the language, as very few nodes compile to it."
——Designscript manual says:

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“do this: point1[i] = Point.ByCoordinates(i,0,0)”
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No error, no point created.

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The code that @Michael_Kirschner2 posted doesn’t need to be in an imperative code block.

i=1..2;
point1=Autodesk.Point.ByCoordinates(i,0,0);

Notice that using the code there for every value in i you are getting a point. No imperative code required. Design script manages replication internally in most ‘for loop’ cases using list lacing and levels.

Here are a few more samples to get you started:

http://designscript.io/DesignScript_user_manual_0.1.pdf

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@Xiaofei_Ying In your case i starts with 1
Ensuring the first index is 0 should sort things out
for

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I found the culprit: “Autodesk.Point.ByCoordinates(i, 0, 0)”, sholuld be “Point.ByCoordinates(i, 0, 0)”

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this is the bug I suspected - it’s fixed in 2.1 -
you can do
func = Autodesk.Point.ByCoordinates() outside the imperative block
and then func(1,1,1)

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Michael_Kirschner2

I learn from other post that package Rhynamo cause this issue.