<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:10px"><div id="yui_3_16_0_ym19_1_1466489946557_3857">Hi,</div><div id="yui_3_16_0_ym19_1_1466489946557_3858"><br id="yui_3_16_0_ym19_1_1466489946557_3859"></div><div dir="ltr" id="yui_3_16_0_ym19_1_1466489946557_3860">I would like to use VTK in a commercial application but I have some questions about the BSD license. </div><div dir="ltr" id="yui_3_16_0_ym19_1_1466489946557_3861">Should I include somewhere the VTK copyright in my application? In source code? In related documents?</div><div dir="ltr" id="yui_3_16_0_ym19_1_1466489946557_3862"><br id="yui_3_16_0_ym19_1_1466489946557_3863"></div><div dir="ltr" id="yui_3_16_0_ym19_1_1466489946557_3864">Currently I'm using version 6.3. I made minor modifications in source file of VTK to fit my needs. Should I publish these changes?</div><div dir="ltr" id="yui_3_16_0_ym19_1_1466489946557_3865"><br id="yui_3_16_0_ym19_1_1466489946557_3866"></div><div dir="ltr" id="yui_3_16_0_ym19_1_1466489946557_3867">Thank you for your answer.</div><div dir="ltr" id="yui_3_16_0_ym19_1_1466489946557_3868">Best regards,</div><div dir="ltr" id="yui_3_16_0_ym19_1_1466489946557_3869"><br id="yui_3_16_0_ym19_1_1466489946557_3870"></div><div dir="ltr" id="yui_3_16_0_ym19_1_1466489946557_3871">James</div></div></body></html>