Hi all,
The brlcad bu_bitv is very intelligently implemented. But it turns out to
be very difficult to wrap that in the python code which is required for BOT
primitive
Below, I explain the situation further.
-> The bu_bitv has a vector "bits" which is a unsigned char type of data.
(of size 2 as per the definition)
-> Now during the initialization of a bu_bitv, only the required memory is
allocated as required by the number of bits. So for example if I have only
8 bits to store the api is programmed such that the memory which will be
allocated will be = sizeof(bu_bitv) - 2(substract the 2) + 1 (allocate a
byte for 8 bits)
->Now while importing a structure in python code we cannot determine
whether extra memory has been allocated or not!
Please suggest remedial measure I should adopt. I spent a long time
understanding the code and what is happening. ;-) Please use the below
links for understanding further.
bot structure : [1]
bit_v : [2]
A typical usage of bit_v for bot : [3]
Cheers!
Raj.
[1] http://brlcad.org/xref/source/include/rtgeom.h#L620
[2] http://brlcad.org/xref/source/include/bu.h#L1365
[3] http://brlcad.org/xref/source/src/libged/typein.c#L1018
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