https://forums.autodesk.com/t5/revit-api-forum/comparing-model/m-p/5294493#M75595 yes, I want the 3d is like a viewer I can rotate and play around just like normal 3d view, and yes I want to put some information which is useful to my daily needs. Wed, 24 Sep 2014 07:48:57 GMT Anonymous 2014-09-24T07:48:57Z https://forums.autodesk.com/t5/revit-api-forum/comparing-model/m-p/5292527#M75593 Hi all,<BR />How to create revit add in which is i extract the 3d view and compare to previous date from its history.<BR />I want to see the daily changes of my model in 3d or in plan view.<BR />Thanks Tue, 23 Sep 2014 14:21:41 GMT https://forums.autodesk.com/t5/revit-api-forum/comparing-model/m-p/5292527#M75593 Anonymous 2014-09-23T14:21:41Z https://forums.autodesk.com/t5/revit-api-forum/comparing-model/m-p/5294391#M75594 and do you want the 3d view to be an image or does it have to be something with more intelligence in it ? Wed, 24 Sep 2014 06:24:56 GMT https://forums.autodesk.com/t5/revit-api-forum/comparing-model/m-p/5294391#M75594 Anonymous 2014-09-24T06:24:56Z https://forums.autodesk.com/t5/revit-api-forum/comparing-model/m-p/5294493#M75595 yes, I want the 3d is like a viewer I can rotate and play around just like normal 3d view, and yes I want to put some information which is useful to my daily needs. Wed, 24 Sep 2014 07:48:57 GMT https://forums.autodesk.com/t5/revit-api-forum/comparing-model/m-p/5294493#M75595 Anonymous 2014-09-24T07:48:57Z