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Support for PLY format

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Support for PLY format

Postby Victor.Lamoine » Thu Dec 18, 2014 11:12 am

Hello,

The OBJ format is an ASCII only format that does not support binary encoding; thus files are very big.
I would like to be able to save the scans in PLY format without having to convert them with a third-party software.

It supports every information that can be stored in an OBJ file (texture, normals etc..) and adds binary encoding to reduce file size.
For example an OBJ file that weights 160 Mo can be reduceBd to 118 Mo in binary PLY format; thats a 25% file size save.
The format definition can be found here.

Bye
Victor.Lamoine
 
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Re: Support for PLY format

Postby JDM Dyno » Thu Dec 18, 2014 1:53 pm

PLY is already a save format in David

ply.jpg
Camera's: 2 x DFK 42BUC03 Duel Camera,
c615 modified with Computar megapixel lens
lenses: 2 x Pentax 12mm, 2 x Computar 8mm
Optoma ML300 Projector
Turntable

www.jdm-dyno.co.uk
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Re: Support for PLY format

Postby Victor.Lamoine » Fri Dec 19, 2014 10:08 am

Hello

Thanks for your answer; I'll rephrase my feature wish:
I would like to be able to save single scans as PLY/STL files (not only with shapefusion) with support for binary encoding (at the moment PLY files are written in ASCII format)

Bye
Victor.Lamoine
 
Posts: 67
Joined: Fri Feb 11, 2011 2:29 pm
Location: France

Re: Support for PLY format

Postby JDM Dyno » Fri Dec 19, 2014 3:01 pm

but you already can
select the scans you want to save and hit the first save button below the list of scans and change to PLY or STL and save
if you mean the raw scan data should have the option to add to list as PLY or STL then that's a different thing than being able to save it.
Camera's: 2 x DFK 42BUC03 Duel Camera,
c615 modified with Computar megapixel lens
lenses: 2 x Pentax 12mm, 2 x Computar 8mm
Optoma ML300 Projector
Turntable

www.jdm-dyno.co.uk
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Location: England

Re: Support for PLY format

Postby Sven » Fri Mar 27, 2015 3:25 pm

You can save single scans as STL or PLY: Simply enter a file name ending with .STL or .PLY
We don't recommend that because those formats don't support textures, and because you cannot import those in Shapefusion.

New: In v. 4.2 DAVID will be able to import STL too.

PLY binary: You are right, we are saving ASCII.
It seems that PLY is rarely used. For which application do you need to export PLY, and cannot use STL or OBJ?

Sven
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Re: Support for PLY format

Postby Victor.Lamoine » Wed Apr 29, 2015 9:02 am

Sven wrote:You can save single scans as STL or PLY: Simply enter a file name ending with .STL or .PLY
We don't recommend that because those formats don't support textures, and because you cannot import those in Shapefusion.

New: In v. 4.2 DAVID will be able to import STL too.

PLY binary: You are right, we are saving ASCII.
It seems that PLY is rarely used. For which application do you need to export PLY, and cannot use STL or OBJ?

Sven


I'm using the davidSDK on Linux and thus transferring the meshes across the network. The OBJ format is not available as binary and STL does not support texture.
To reduce the huge transferring time I would like to be able to export the mesh in binary (ideally compressed) file; see ExportMesh in davidSDK.
Victor.Lamoine
 
Posts: 67
Joined: Fri Feb 11, 2011 2:29 pm
Location: France


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