Ensuring your symbol selections are “clean” is a key part of using Countfire.

Why are clean selections important?

Countfire relies on the information you give it to automatically count.

Clean selections are therefore key to ensuring Countfire’s automatic counting works well.

You want to make your selections as simple as possible (to increase your chances of automatically matching on other symbols), without making them too simple that you run into false positives.

What are clean selections?

Selections fall into 3 classes:

  • Selections that are too complex.
  • Selections that are too simple.
  • Clean selections.

Selections that are too complex

BAD: 1 selection = 1 match

Overly complex selections mean you don’t get as many matches per selection as you should. As a result, you need to make far more selections than is necessary to complete the project.

Selections that are too simple

BAD: 1 selection = 178 matches

Overly simple selections mean you have an increased chance of running into false positives. As a result you need to do more checking at the end of the project to correct these.

Clean selections

Good: 1 selection = 54 matches

Clean selections include all of the symbol, and nothing more:

  • They include the symbol’s reference.
  • They include the symbol’s body.
  • They don’t include any unnecessary elements or background.

How does hiding a drawing’s background help?

Because hidden elements are no longer available for selection, if you work with the background hidden, it’s much easier to ensure your selections are clean.

If the background doesn’t hide by default on your drawings, use the define background tool.

How does hiding matched symbols help?
Again, because hidden elements aren’t available for selection, once you hide any symbols that have already been counted, it becomes easier to make clean selections.

Learn more

How to: Review selections as you make them.

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