Outlining Multipolys

If I draw a simple polygon, the Outline in Black tool works as I would expect (and I can change properties with desired results).

If I draw one polygon inside of another and subtract out the middle one with the Multipoly tool, and then click Outline in Black, I no longer seem to be able to control the thickness of the outline via Change Properties. Does this process essentially convert the remaining Multipoly into a line? Or does Outline in Black not work on multipolys?

Thanks for any help.

Comments

  • MonsenMonsen Administrator 🖼️ 81 images Cartographer

    When you outline a multipoly, the outline itself also becomes a multipoly. Amultipoly is always a filled entity, so you cannot set line width on it. That thin outline you initially get is the Hollow fill style, which is the only way to have an outline with a multipoly.

    However, the main reason for having a multipoly in the first place is so you can have a hole in the poly. For the outline, this is kind of irrelevant because it isn't a solid surface you need a hole in. So you can explode the outline you get, and then use change properties on it (remember to pick all the entities that made up the outline multipoly), and set the fill style to solid, color to black, and a line width of your choice.

    LoopysueJimP
  • Hey @Monsen -

    Thanks so much for the clear explanation (and for your excellent video tutorials). Makes sense now and I'm able to change the properties once exploding as you described.

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