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Fix length unit of projected crs to match map conversion.#4

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SGoetschi wants to merge 1 commit intobuildingsmart-community:mainfrom
SGoetschi:fixProjectLocationUnit
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Fix length unit of projected crs to match map conversion.#4
SGoetschi wants to merge 1 commit intobuildingsmart-community:mainfrom
SGoetschi:fixProjectLocationUnit

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@SGoetschi
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General pull request

Fixes wrong position of example project location.

Changes and improvements proposed by this pull request

  • Fix file IFC 4.0.2.1 (IFC 4)/Example project location/example project location.ifc:
    The eastings and northings values in the IFCMAPCONVERSION are obviously in millimeters. But the IFCPROJECTEDCRS was set up with meters as units. Moving this over to millimeters will correctly position the file.

The eastings and northings values in the IFCMAPCONVERSION are obviously
in millimeters. But the IFCPROJECTEDCRS was set up with meters as units.
Moving this over to millimeters will correctly position the file.
@SGoetschi
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This adds the same change as this PR on the old version of this repository.

@aothms
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aothms commented Jul 20, 2025

Sorry to hijack, did you by any chance also review https://github.com/buildingSMART/IFC4.3.x-sample-models/tree/main/models/placements-and-gis-referencing Never hurts to have more eyes on the samples.

@SGoetschi
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From what I can see the geographic-referencing-gk and geographic-referencing-utm are correct - at least in regard to units.

But I don't know enough about grid placement and rigid operation to say anything about those.

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2 participants