Even if I put commercial software on the market using "Open Cascade", isn't it necessary to report to EADS Matra Datavision?

Must I pay EADS Matra Datavision money?

Please give me advice.

b-araujo's picture

Only Matra Datavision can answer to that. I think you have to pay money for the components that are not open source.

fhchina's picture

The Open Source part of Cas.Cade(i.e. OpenCascade those you can download freely) is free for both commercial & open source development,and it is licensed like LGPL.

takam99's picture

Thank you for advising me.

Is it no charge except "ssp", "Mesh", and "Option Data exchange" which are indicated by ""?

Roman Lygin's picture


The terms of the Open CASCADE public license allow the development and marketing/distribution of a commercial application without any need for
putting the code developed by you as open source. Your only obligation is to declare that your software uses Open CASCADE which is a Trademark of Open CASCADE company.
The open source of Open CASCADE code downloadable on-line is free of charge and you need not pay run time licenses and royalties to Open CASCADE when you market your application.
In addition there are advanced components (including Advanced Data Exchange and others) that are provided on a paying basis. Please consult for more information.

Sincerely yours,

Roman Lygin - Pre-sales and qualification manager
Open CASCADE, the Open Source Standard for 3D modeling solutions