topic What is more Precise about PreciseRangeBox compared to RangeBox? in Inventor Programming Forum

What is more Precise about PreciseRangeBox compared to RangeBox?

Josh_Hunt — Mon, 26 Sep 2022 14:03:14 GMT

Does anyone know what is different about PreciseRangeBox compared to RangeBox?

Can Autodesk improve the API documentation to explain better?

I thought Inventor API was already accurate to 8 place centimeters. How much more precise?

Does PreciseRangeBox exclude certain objects (work points, planes, axes)?

2023 API What's New: Item 9

API Help PartComponentDefinition.PreciseRangeBox

Re: What is more Precise about PreciseRangeBox compared to RangeBox?

MjDeck — Mon, 26 Sep 2022 15:52:01 GMT

How much more precise it is depends on the geometry. If the faces at minimum and maximum are all planar and aligned to the axes, then RangeBox should be the same as PreciseRangeBox.
Here's a part with a spline face. It has an iLogic rule to compare the results. (Use View > Windows > User Interface dropdown and check the iLogic Log box to see the output of this rule.)

Yes, PreciseRangeBox excludes work points, planes, and axes. The only things it includes are solid and surface bodies.

Another place where it can be more accurate is parts placed in assemblies.

Re: What is more Precise about PreciseRangeBox compared to RangeBox?

Josh_Hunt — Mon, 03 Oct 2022 13:21:18 GMT

@MjDeck wrote:
Yes, PreciseRangeBox excludes work points, planes, and axes. The only things it includes are solid and surface bodies.

That is great! I have done a lot of work to make sure work features were invisible to get a desired rangebox.

Thanks for the clarification. Please pass that on to team writing the XML documentation.