MPK - FAQ

• When I try to run an example in linux, I get the following error:
  Warning: Representation size 1 must match superclass's to override installColormap
  Warning: Representation size 4 must match superclass's to override ginitCallback
  Segmentation fault
  Ans: You have probably used incompatible rpms to install Open Inventor. Install Open Inventor by compiling the source code.
  


• I use redhat 9.0 (gcc 3.2.2 and higher). and get the following errors:
  /usr/include/c++/3.2.2/cmath: In function `float std::cos(float)':
  /usr/include/c++/3.2.2/cmath:193: `float std::cos(float)' conflicts with
  previous using declaration `float cos(float)'
  ...
  Ans: In the "PQP_v1.2/" package, comment out the following lines in the
  file "src/PQP_Compile.h" (then recompile PQP):
  inline float sqrt(float x) { return (float)sqrt((double)x); }
  inline float cos(float x) { return (float)cos((double)x); }
  inline float sin(float x) { return (float)sin((double)x); }
  inline float fabs(float x) { return (float)fabs((double)x); }
  


• I get the following error when trying to build the Visual Studio 6.0 project: C:\Coin3D\include\Inventor/SbVec2f.h(53) : fatal error C1001: INTERNAL COMPILER ERROR (compiler file 'msc1.cpp', line 1786) Please choose the Technical Support command on the Visual C++ Help menu, or open the Technical Support help file for more information Error executing cl.exe.
  Ans: Your Visual Studio 6.0 is not up to date. Update it using the Visual Studio service pack available at: http://msdn.microsoft.com/vstudio/downloads/updates/sp/vs6/sp5/ (If this site has expired then type "Visual Studio 6.0 service pack" on google)
  


• Which software do you use to convert CAD models in other formats like .stl etc to open inventor format?
  Ans: I use ac3d and deep exploration.
  


• From where can I get CAD models of some industrial robots?
  Ans: Search the ABB website (www.abb.com) through their search toolbar for CAD models of their robots.


• When I replace the existing .iv geometric models with mine, the collision detection dosn't seem to work. Any clue?
  Ans: After you have generated your own .iv file. make sure you fix it using "ivfix" (comes with open inventor).


• I cant compile open inventor in fedora core 5. Any help?
  Ans: Instead use rpms for Inventor, Inventor-devel, InventorXt, InventorXt-devel from the fedora core 5 rpm repository.