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6ca5657c73
When Draw() is running from python it - sets the global mesh pointer (a weak pointer) - tells the GUI thread to draw the mesh The problem: If the python script already finished, the mesh is dying before the GUI thread picks it up for drawing. This does not happen for drawing a function, since the NGSolve solution scene object already keeps a shared_ptr to CF/GridFunction/mesh objects. The fix: Add a shared_ptr<Mesh> to the mesh scene object. This gets updated automatically when the global weak_ptr is set (but only if the GUI was loaded, that's why a callback is needed)
57 lines
1.4 KiB
C++
57 lines
1.4 KiB
C++
#ifndef NETGEN_GLOBAL_HPP
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#define NETGEN_GLOBAL_HPP
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/**************************************************************************/
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/* File: global.hh */
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/* Author: Joachim Schoeberl */
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/* Date: 01. Okt. 95 */
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/**************************************************************************/
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/*
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global functions and variables
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*/
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#include <mydefs.hpp>
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namespace netgen
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{
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using namespace ngcore;
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///
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DLL_HEADER extern double GetTime ();
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DLL_HEADER extern void ResetTime ();
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///
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DLL_HEADER extern int testmode;
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/// calling parameters
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// extern Flags parameters;
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// extern DLL_HEADER MeshingParameters mparam;
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DLL_HEADER extern mutex tcl_todo_mutex;
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class DebugParameters;
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class Mesh;
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DLL_HEADER extern string ngdir;
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DLL_HEADER extern DebugParameters debugparam;
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DLL_HEADER extern bool verbose;
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DLL_HEADER extern int h_argc;
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DLL_HEADER extern char ** h_argv;
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DLL_HEADER extern void(*on_set_global_mesh)(shared_ptr<Mesh>);
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DLL_HEADER extern weak_ptr<Mesh> global_mesh;
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DLL_HEADER void SetGlobalMesh (shared_ptr<Mesh> m);
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DLL_HEADER shared_ptr<Mesh> GetGlobalMesh ();
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// global communicator for netgen (dummy if no MPI)
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// extern DLL_HEADER NgMPI_Comm ng_comm;
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} // namespace netgen
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#endif // NETGEN_GLOBAL_HPP
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