I tried to modify the value of gravity accessing the engine in the TriaxialCompressionEngine, but still it does nothing.. I guess if is there possible to change the value of a parameter throughout the simulation for a specific engine? Or this cannot be?
Thanks, Chiara On 10 February 2010 15:39, chiara modenese <[email protected]> wrote: > Hi Jerome, > > > On 10 February 2010 15:21, Jerome Duriez <[email protected]>wrote: > >> chiara modenese a écrit : >> >> // Apply gravity gradually >>> Vector3r gmax=Vector3r(0,-9810,0); >>> Vector3r deltag=Vector3r(0,0,0); >>> deltag=gmax/100; // apply the gravity in 100 steps >>> if (fabs(g[1])<fabs(gmax[1])) >>> { >>> g=g+deltag; >>> } else { Omega::instance().stopSimulationLoop(); >>> } >>> >>> Where are these lines ? In TriaxialCompressionEngine.cpp ? >> > YES > >> And those : >> >> >>> gravityCondition->gravity = triaxialcompressionEngine->g; // set gravity >>> to the value in triaxialcompressionEngine >>> rootBody->engines.push_back(gravityCondition); >>> >>> In TriaxialTest.cpp (function generate) ? >> > YES > >> >> If yes it's normal that it does not work at all... Because here you define >> (see what's going on with "generate" of the TriaxialTest) a simulation >> taking into account gravity, but with a value of g equals to (vector) >> zero... >> >> What you wrote in TriaxialCompressionEngine (=first lines I quoted) can >> not modify the value of gravity applied by the GravityEngine (it even does >> not access to this Engine), which remains thus equal to 0... >> >> > Oh sorry, you are entirely right! I was just confused by the idea that > engines are called at each iteration... > So, can I access the gravity engine directly in the > TraixialCompressionEngine.cpp so I modify the value of the gravity only once > I need to? > > cheers, Chiara > > >> Jerome >> > >
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