HI,

I am trying to develop a very basic testing. This requireS restricting the random generated dots inside a rectangular. Does anyone know the components do this trick?

Or do I use boundary component?

Thanks,

HI,

I am trying to develop a very basic testing. This requireS restricting the random generated dots inside a rectangular. Does anyone know the components do this trick?

Or do I use boundary component?

Thanks,

Grasshopperâ€™s random component lets you input how many random number it should generate.

If you are accessing the RhinoCommon, you can use Pythonâ€™s own random library that has a `sample()`

method

you mean pop 2D or pop geometry?

Since you tagged as Rhinocommon, if you are scripting

Make sure your random values are generating between 0 and 1

and use them for the x and y values in the rectangle space using Rectangle.PointAt(double,double) like the following:

Point3d recPt = yourRectangle.PointAt(randomX, randomY);

Michael and Will, I am not doing scripts. Thanks Michael for pointing out this, so I revised my question.

Since you want to generate random dots inside a rectangular region, you can simply use the `Pop2D (Populate 2D)`

component, with your region as input.

If you want your points to be three-dimensional, you can use `Pop3D (Populate 3D)`

and input your region as a rectangular box, instead of a two-dimensional rectangle.

Both components let you control the number of random points in your region, as well as the random seed, which basically lets you change the random state.

Thanks. I do use populate 2d component in the beginning. However, after several more steps, I need to restrain my circles into new rectangular, this rec isnâ€™t coming from the Populate 2d. What should I do? Do I try domain or boundary components?

test-restrictedInRec.gh (6.1 KB)

You need to explain more clearly what youâ€™re after!

Your file includes only the rectangle that you generate your circle center points in. The second rectangle that you mentioned above is missing.

Are you after packing your circles into a rectangular region or do you simply want to sort out circles that are not within this region?

â€śAre you after packing your circles into a rectangular regionâ€ť

-sorry for not explaining my questions clearer. The above you mentioned is indeed what I want to do. Much Thanks.

OK, check this out:

Hi, I still want to figure out my own way at this moment. The only thing I couldnâ€™t do is to erase those circles outside the rectangular I put in. What should I do? Please help.

test-restrictedInRec1.gh (9.7 KB)

Thanks for your help. I have some questions for your definition:

- there are a â€ścurveâ€ť component between rec component and â€śpoint in curveâ€ť, why you do it?

C(Curve)input of `Point In Curve` only takes curve parameter, not rectangle. They are different. You need datatype conversion.

Kim, thanks for the explanation.

I see. In my previous definition, I put an attractor line to seperate the circles. I wonder if this still work in your definition?

?.. You mean this?

1 Like

You can scale circles ;you need **Pufferfish** or use standard component

test-restrictedInRec2.gh (13.1 KB)

1 Like