topic Re: Join/Combine Regions in AutoCAD Forum

Join/Combine Regions

ahmedshawkey95 — Thu, 06 Apr 2023 14:34:42 GMT

Hi,
How can I join multiple regions (not intersected regions) to create only one region representing them as shown below?
Input regions:

Required output as one region:

I tried to use the following boolean operation commands but didn't the required output.

Thanks,
Ahmed

Re: Join/Combine Regions

Patchy — Thu, 06 Apr 2023 15:05:30 GMT

Group, or block them.

Re: Join/Combine Regions

Kent1Cooper — Thu, 06 Apr 2023 17:22:31 GMT

No "following boolean operation commands" included.

How did you make the "required Output" portion of the drawing?

Re: Join/Combine Regions

ahmedshawkey95 — Thu, 06 Apr 2023 18:01:56 GMT

I need them to be represented as one regio entity. Other types aren't allowed.

Re: Join/Combine Regions

ahmedshawkey95 — Thu, 06 Apr 2023 18:16:16 GMT

It was a hatch and converted to a region using this Autolisp but I want to know how to do this using native AutoCAD commands.

Re: Join/Combine Regions

ChicagoLooper — Thu, 06 Apr 2023 21:36:33 GMT

Hello @ahmedshawkey95

Your explanation is not clear. If I understand you correctly, (and I might not be) then you can use REGION and SUBTRACT commands.

Try this:

On command line=>REGION=>select all objects (1 large rectangle, 2 small rectangles and 3 circles). This will result in 6 individual regions. See image-1.
Without any objects selected, go to command line=>SUBTRACT=>select the large rectangle (rectangle will turn into a dashed line when selected)=>ENTER See image-2.
The command line will now wait for you to select object(s) you wish to SUBTRACT. Select 3 circles and 2 small rectangles=>ENTER. See image-3.
A single region has now been created. See image-4.
Hatch the NEW region and it will look like this. See image-5.

Image-1

Image-2

Image-3

Image-4

Image-5

Re: Join/Combine Regions

ahmedshawkey95 — Fri, 07 Apr 2023 00:45:30 GMT

@ChicagoLooper Thanks so much. That's exactly what I was asking about.

Re: Join/Combine Regions

ChicagoLooper — Fri, 07 Apr 2023 16:26:36 GMT

@ahmedshawkey95

You're welcome.

BTW, you can also use a REGION to create a viewport. Using the same operation explained in the earlier post, draw the regions directly on a layout tab so they're in paperspace, not modelspace. Then use the OBJECT option to convert the region into a viewport.

Modelspace containing objects.

1-Objects in modelspace look like this.

While on a Layout Tab=>Layout Tab=>Layout Viewports Panel=>Object from the dropdown=>Select the Region.

2-The region is considered an OBJECT and this object can be used as a viewport.this