New DRAW commands dgetenv and dsetenv are added, allowing to query and set environment variables as defined in C subsystem, from Tcl.
On Windows, special handler is armed in DrawDefaults providing automatic update of C environment when Tcl environment (array env) is modified. Note that this is not needed on Linux (Tcl does this internally).
Fixed problem with "array get env" command.
Added comments to _update_c_env proc.
Two commands are added in DRAW:
decho: allows switch on/off echo of commands and their results. When echo is on, all commands implemented as OCCT DRAW C procedures will be echoed to standard output, along with their result. This can be useful to trace process of execution of script evaluated by 'source' command.
dlog: implements off-screen log for recording DRAW commands and their output for further processing in Tcl script (mainly for use in automatic tests). Run this command without arguments to get help.
Added ios::sync_with_stdio() call to Draw::BasicCommands.
Correction for compilation on Linux
New command line option -c added to DRAWEXE: if it is given, the following arguments are considered as commands to be executed by DRAW after start.
When options -f or -c are used, DRAW exits after completion of the script unless option -i is given.
Option -l is removed as obsolete (not needed anymore due to appearance of option -v).
Option -h (or --help) is added, giving help on command options.
Reporting of unrecognized options added.
On Windows, when run in interactive mode, extended error reporting in case of DLL loading problems activated.
Added Graphic3d_GraphicDriver::MemoryInfo() function.
Added vfps command to estimate average frame rate of 3D Viewer
Simplified vdrawsphere command
Removed turnVbo and performance measurements from vdrawsphere.
Added vvbo command to control VBO usage flag.
Added vmemgpu command to display GPU memory info from graphic driver
