Silverlight Charts
March 28, 2008 | 11:20 amMostly here because I’m sure I’ll forget this and keep searching, Visifire (heard of ‘em before? Me neither) has released a GPLed Charting component for Silverlight! Haven’t used it programatticaly, but the looks sure rock 
Now, if only someone can explain to me if I can use this one on an internal app without GPLing that internal app…
You could get in touch with them (on the license
Shivanand | March 29, 2008 | 12:11 amYou could get in touch with them (on the license page), and buy a license from them :). If you don’t distribute your work, then you can use the GPL license!
@shivanand: You sure about that no-distribute-can-use one?
yuvipanda | March 29, 2008 | 1:58 am@shivanand: You sure about that no-distribute-can-use one?
Well, I am no lawyer, but I guess this is
Shivanand | March 30, 2008 | 3:53 amWell, I am no lawyer, but I guess this is logical enough.
If you do not distribute the app, the only one you are releasing the app is to yourself, and you have access to the source. So essentially, the app you write is open-source and GPL licensed, but just that you are not releasing to anyone.
However, if at some point you intend to sell your app or offer, hosted services, using your app, then you will have to remove all part using GPL code and rewrite it or you can open-source your app.
To put it simply, if you are writing an app for yourself, then you can use GPL components within it.
http://creativecommons.org/licenses/GPL/2.0/
anyway, looks like they have a commercial license option too.
Shivanand | March 30, 2008 | 3:55 amanyway, looks like they have a commercial license option too. Why don’t you send out an email to them, describing what you want to do with their product and just find out how much it would cost to get a license.
In case, you decide to sell your app, you will know what to charge for it based on your license cost.
Until then, you can use the GPL license
The GPL only applies to a redistribution type scenario. Otherwise won't
Pratham | March 30, 2008 | 10:35 pmThe GPL only applies to a redistribution type scenario.
Otherwise won’t Google have to GPL all its internal code as they use MySQL, Python etc ?
@Pratham, Shivanand: Thanks for clearing that up!
yuvipanda | March 31, 2008 | 8:25 am@Pratham, Shivanand: Thanks for clearing that up!
you can use it for personal use free of cost. if
kiran | April 2, 2008 | 11:44 amyou can use it for personal use free of cost.
if you want to use it in a commercial website then you have to buy it
if you want to use it for a commercial app.(redistributable) which doesn’t comply to gpl then you gotta buy oem license.
many companies are using this kind of dual licensing. Mysql is one of those
better mail those guys for clarification
The commercial license is if you want to package Visifires
Duffer | April 16, 2008 | 11:33 pmThe commercial license is if you want to package Visifires chart controls in your own commercial application, not website.
You are free to use the GPL’d version for commercial purposes other than to package it with a commercial application.
The dual license for MySQL is with regard to commercial
Duffer | April 16, 2008 | 11:35 pmThe dual license for MySQL is with regard to commercial support and redistribution in another application. Again you can use MySQL for commercial purposes under the GPL license.