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Author Topic: Scaling factors when importing mesh into 3D Software  (Read 6450 times)

Hollyg

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Scaling factors when importing mesh into 3D Software
« on: August 14, 2012, 01:05:04 PM »
Hi there,

I import my meshes from photoscan into Maya. Generally I then align these meshes with simple geometry from surveys. However before aligning the two I have to scale the mesh to match the scale of the survey. Does anyone know if there are set scaling factors or if there is a way to import a mesh from photoscan so that it is already at the same scale?

I usually start with scaling the mesh by 24 times and then scaling by slight graduations by hand to match. From now on I will note down how much this scale factor is and see if there is a general rule and post back my findings. However, if anyone has any pointers or thoughts on this please let me know.

Best
Holly

Wishgranter

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Re: Scaling factors when importing mesh into 3D Software
« Reply #1 on: August 14, 2012, 02:42:03 PM »
PRO version offer way to do it precisely, with Ground control, you can set 2 points and then a distance and afther that it will have the right size.....
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Hollyg

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Re: Scaling factors when importing mesh into 3D Software
« Reply #2 on: August 14, 2012, 03:28:49 PM »
Hey Wishgranter,

Thanks for that. Unfortunately I am using Standard version as I don't need all the Pro capabilities, but it is worth knowing this is in the pro version. Any other thoughts?

Best
Holly

Wishgranter

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Re: Scaling factors when importing mesh into 3D Software
« Reply #3 on: August 14, 2012, 03:41:27 PM »
then try something like this: when shooting, make some "markers" with constant size, that afther that can without doubt set in MAYA/ANY 3D app some object, like CUBE or better checker board, or something better and colerate in that app. Could understand what im meaning ?  see attachment
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Infinite

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Re: Scaling factors when importing mesh into 3D Software
« Reply #4 on: August 14, 2012, 09:23:03 PM »
Wishgranters idea is good, or you can pop into this thread and help support me get this feature integrated into Agisoft Standard and Pro.

A Gizmo tool to set scale, orientation and position correctly in World-space.

http://www.agisoft.ru/forum/index.php?topic=592.0

+1 if you can, to show support by numbers.
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cmiVFX

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Re: Scaling factors when importing mesh into 3D Software
« Reply #5 on: August 27, 2012, 09:59:00 AM »
+1 for measure gizmo!

FoodMan

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Re: Scaling factors when importing mesh into 3D Software
« Reply #6 on: August 27, 2012, 10:23:32 AM »
+1

f/