Bitmasks are essentially bitwise comparisons. Understanding how bitmasks work might make more sense if you think of their binary representation.
The binary representation of the decimal number 1 is 0001, 2 is 0010, 4 is 0100, etc.
Think of each bit as a switch. For example, the decimal number 5 in binary is 0101. The third bit (0100) is on and the first bit (0001) is on. So, 0101 = 0100 + 0001.
If a SOLIDWORKS PDM Professional enumerator has a bitmask like the following:
|
Decimal |
Option |
Binary |
|
1 |
OptionA |
0001 |
|
2 |
OptionB |
0010 |
|
4 |
OptionC |
0100 |
|
8 |
OptionD |
1000 |
and you want OptionA and OptionC on, then add their two values together:
|
Decimal |
Option |
Binary |
|
1 |
OptionA |
0001 |
|
+ 4 |
OptionC |
0100 |
|
= 5 |
|
0101 |