Hello! Does CRhinoObject has something like IsModified or information about previous state? Thanks in advance!

No, but I think you should be able to track changes as follows: Between changes to an object its ObjectId does not change, but its runtime serial does change. Each state of an object therefore has a uniqe runtime serial number. I can imagine the following working: Use CRhinoEventWatcher-subclassed…

Any time an object is changed in any way, its runtime serial number will change. To track this, just use CRhinoObject::m_runtime_serial_number. Note, this value will change of an object’s attributes (e.g. layer, color, etc) are modified, or if the object’s geometry has changed. If you really want to…

Hi Dale, I was looking to use the DataCRC method on a RhinoObject (RhinoCommon) to try to determine if the object geometry had changed in a prior session of Rhino where my plug-in may not have been loaded so I couldn’t use an event to watch for the change Am I correct that the DataCRC could be use…

Hi @LarryL , Calling DataCRC on a RhinoObject only calculates the CRC from the manifest (e.g. model serial number, worksession serial number, etc.) and not the geometry. I’ll expose something on GeometryBase you can access. https://mcneel.myjetbrains.com/youtrack/issue/RH-68961 – Dale

IsModified CRhinoObject?

Rhino Developer

brian (Brian Gillespie) June 15, 2022, 12:24am 7

RH-68961 is fixed in Rhino 7 Service Release 20

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IsModified CRhinoObject?

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