topic Re: Create 2D solid object from polyline outline? in AutoCAD Forum

Create 2D solid object from polyline outline?

kjacsurveyorcad345 — Sun, 23 Mar 2025 18:39:03 GMT

I'm attempting to make my own north arrow and have the line work drawn, but the only way I've been able to fill the interior of the outline is with HATCH. I'd like to create a block out of this object for use in other drawing, but I don't want it to be hatched. Is there a way to create a solid 2D object without hatching? The SOLID command requires making multiple triangles to fill the interior, but UNION will not join them all together.

Re: Create 2D solid object from polyline outline?

Washingtonn — Sun, 23 Mar 2025 18:44:24 GMT

Post the arrow

Re: Create 2D solid object from polyline outline?

kjacsurveyorcad345 — Sun, 23 Mar 2025 18:56:42 GMT

Here's the DWG file. I'm using hatch solid fill to show what I am trying to make it look like.

Re: Create 2D solid object from polyline outline?

Kent1Cooper — Sun, 23 Mar 2025 20:31:51 GMT

@kjacsurveyorcad345 wrote:

.... I'd like to create a block out of this object for use in other drawing, but I don't want it to be hatched. ....

If that's the goal, I suggest you make a dedicated Layer to put the Hatch pattern on, which you can freeze or turn off in the drawing(s) in which you don't want the Hatching, using the same Block in all drawings. Then it won't matter whether the fill is a Hatch pattern, or multiple Solids [which can be fewer than you seem to think, using four-sided ones where applicable], or any other possible way, if there are any.

The only other way that comes to mind that would have the fill in one object as Hatch can [but you didn't do it as one in the sample drawing -- make sure HPISLANDDETECTION is set to 0, and HPISLANDDETECTIONMODE to 1], would be to Presspull the areas to a tiny thickness and Union the results together, but then you would be stuck with using only certain visual styles when you want it to be visible as infill. And you would still need to do something like the Layer suggestion if you want to use the same Block in multiple drawings but have the infill visible in only some of them.

Re: Create 2D solid object from polyline outline?

leeminardi — Sun, 23 Mar 2025 21:09:26 GMT

You can make the object a single region which will appear solid if an appropriate visual style is active (e.g., Shaded). Note that Union allows multiple solid objects, or regions, to be unioned together even if they do not touch each other.

Re: Create 2D solid object from polyline outline?

Washingtonn — Sun, 23 Mar 2025 21:18:32 GMT

Re: Create 2D solid object from polyline outline?

Washingtonn — Sun, 23 Mar 2025 21:25:57 GMT

"note" instead of "not" the top left......

Re: Create 2D solid object from polyline outline?

kjacsurveyorcad345 — Sun, 23 Mar 2025 22:50:43 GMT

Very helpful, thank you. Would you mind taking a look at my file? I think I did it correctly.

Re: Create 2D solid object from polyline outline?

Kent1Cooper — Mon, 24 Mar 2025 17:44:38 GMT

@Washingtonn wrote:

"note" instead of "not" the top left......

[Just so you know.... You don't need to post a correction in a separate Message. You can correct it in your original Message. Pick the three-stacked-dots thing at upper right, and choose Edit Reply at the top.]