This enumeration specifies vector fill mode constants. These constants define a winding rule for polygons, that is, which part of a polygon is on the interior.
Values:
| IG_VECT_FILLMODE_ODD | Part is filled if a winding number is odd. |
| IG_VECT_FILLMODE_NONZERO | Part is filled if a winding number is non-zero. |
| IG_VECT_FILLMODE_POSITIVE | Part is filled if a winding number is positive. |
| IG_VECT_FILLMODE_NEGATIVE | Part is filled if a winding number is negative. |
| IG_VECT_FILLMODE_ABS_GEQ_TWO | Part is filled if an absolute value of the winding number is greater than or equal 2. |