Mesh created from E57 laser scans...wrong scale/wrong origin

Development Asset Creation
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1

I created a mesh of a site that I laser scanned (using E57 data as input).

Created a mesh, using calculate model: “normal”. I then simplified this mesh down to 2.5 million polys, and textured the result.

When bringing the OBJ into 3ds max, and also bringing in the scan data from ReCap, I noticed that the scale of the OBJ was off by 3.28084 (meter to foot conversion), and the origin was not the same as the E57 that was used to generate it.

I was hoping someone could advise on steps to get:

a) correct scale on output
b) identical origin of E57 scan data that was original input.

For now, I can eyeball the alignment, but this is not ideal.

2

Hi jwa

When bringing the OBJ into 3ds max, and also bringing in the scan data from ReCap, I noticed that the scale of the OBJ was off by 3.28084 (meter to foot conversion), and the origin was not the same as the E57 that was used to generate it.

  1. Set Scientific format on export

OBJ_Scientific16_Format.png

  1. Check the UNITS on import of the data in 3DS MAX and if they are converted to another units or not.

For proper placement are the scans georeferenced or not ?
when you import the data, select all and then set this setting to them and just then use ALIGNMENT

EXCACT_LOCKED.png

3

Thank you for this prompt reply, Milos!

I will give this a try.