This section will discribe how to perfoem
the nesting.
Before defining the nesting task, you should
build parts and material at first, please refer to section Building
Part and Building material for details.
After preparing parts and material, you can
define the NestTask object and then execute it. About
tis procedure, please refer to the source code of function
OnExecute in DemoDlg class which you can
find it in C++ DEMO program, that function details this procedure.