Problem DetachChild() holding up Launchpad

[dumbo2007]

I am developing a plugin using the orbiter111105 beta. I create a vessel dynamically and attach another vessel to it.

The dynamically created vessel is the base and the attached vessel is a rover. When the simulation ends I detach the rover using DetachChild()

However DetachChild() never seems to return. I checked with the Visual studio debugger. It didnt happen in the Orbiter P1 release.

I have attached the the plugin module file which should reproduce this error. The dynamically created vessel is of class BulletBase whose code is in the zip too.

I wonder if any recent changes have been made to DetachChild().

 

[orb]

The vBulletBase doesn't point to a valid VESSEL3 interface of BulletBase class, because the vessel has been already deleted.

 

[dumbo2007]

Thanks, is there anyway to check that a VESSEL pointer points to a valid VESSEL class using something like a assert().

 

[orb]

Better than VESSEL3 class pointer would be keeping its OBJHANDLE. You could check whether it's still valid with oapiIsVessel(OBJHANDLE) function, or you could compare in Bump::clbkDeleteVessel(OBJHANDLE) callback method (of your module's class) if it hasn't been just deleted, and set a flag or put NULL in its OBJHANDLE which is saved in Bump class, if it has been deleted.

 

[dumbo2007]

By the way, unrelated to this, but I ll avoid starting a new thread by asking here, is there any addon which can draw the longitude and latitude lines on the surface of a celestial body at the angular interval I specify ?

I am working on some terrain collisions and it involves terrain patches made between a range of longitudes and latitudes. Would be useful to be able to see the parallels on the surface. Orbiter's default planetarium displays do not have an option for it.