[alongqishia]

hey does anybody know what this function does?

In the tutorial on dynamic mesh movement for a valve there is a line in the udf file:

domain = THREAD_DOMAIN (DT_THREAD ((Dynamic_Thread *)dt));

I understand that 'dt' is being cast into a pointer of type Dynamic_Thread, and then DT_THREAD takes the pointer of type 'Dynamic_Thread' and converts it into a pointer of type 'Thread',

but what does 'THREAD_DOMAIN' do?

from the name it seems it finds out the pointer of type 'Domain' from the pointer of type 'Thread', but I couldnt find a definition for it anywhere in the documentation or on the web?

Could somebody please explain?