This paper presents the SIMViewer computer program allowing users to visualise the results from the T-SIM
simulation software made by Accuform in the field of plastics thermoforming. The main feature is to visualise
particular thermoforming process steps of a plastic sheet in a three-dimensional space including all geometric
parts of the defined model like a forming die and optional plunger. SIMViewer provides a projection of scalar
quantities that characterize the thermoformed region. It is mainly focused on presenting the thickness
distribution, thermoforming temperature, stress, strain and other scalars applied on the plastic sheet. This
application was developed in C++ programming language, the graphical area was implemented by the OpenGL
library and the user interface was created by using the MFC application framework
