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## geometry pattern & feature pattern

Hi,

I've observed a difference in geometry pattern & feature pattern.

I've just migrated to Creo Prametric 2.0 from Pro E 3.0

While pattering a geometry - under the numbers box.

If I write the no. = 2, well it creates 2 geometry

If I write the no. =3, it creates 4 geometry

I want to understand the logic behind it.

Where as in the feature pattern-

If I write the no. = 2, well it creates 2 features

If I write the no. =3, it creates 3 features.

Thanks!

12 REPLIES 12

## Re: geometry pattern & feature pattern

Mine is not behaving this way... Creo 2.0 M040

## Re: geometry pattern & feature pattern

I've also using M040

I've attached a ppt. shwoing the steps How it comes?

## Re: geometry pattern & feature pattern

That definitely looks like a bug. I had the same results using your method in the powerpoint; I'm on Creo 2.0 M70. I tried the following similar methods:

• Method 1: Geom pattern the solid surfaces = bug
• Method 2: Copy of the surfaces then geom pattern the copy = OK
• Method 3: Select one surface then geom pattern, then use the references dialog to select more surfaces = OK
• Method 4: Use ALT+CTL and select all surfaces individually then geom pattern = OK

## Re: geometry pattern & feature pattern

M090 behaves the same. Kind of weird though, the copy is adding the previous copies.

Antonius, no m090 yet?!?!?

## Re: geometry pattern & feature pattern

When this comes up in a code review it is called "off-by-one"

The usual causes:

Increment from zero for one case and increment from one for another

-or-

Stop at equals to limit or stop at exceeds limit.

Better put - do you count the pickets in the fence or do you count the gaps.

## Re: geometry pattern & feature pattern

 Antonius, no m090 yet?!?!?

I go the disk

So who's going to report the bug?

## Re: geometry pattern & feature pattern

Actually, if you:

Pattern 2, you get 2

Pattern 3, you get 4

Pattern 4, you get 7

Pattern 5, you get 11

I think I see what might be going on. It selects all solid geometry for each instance of the pattern. You can see this if you have prehighlight on and hover over each instance of the pattern. So this may be typical programed Creo (mis)behavior after all?

## Re: geometry pattern & feature pattern

Antonius, tried to PM you as to not derail the thread, but it says your mailbox is full.

## Re: geometry pattern & feature pattern

Thanks... its empty now

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