|
Comparison_result
|
fo.operator() ( Kernel::Point_2 p, Kernel::Line_2 h)
|
| |
compares the -coordinates of and the vertical projection
of p on h, see (d) in the figure
below.
| Precondition: | h is not vertical. |
|
|
|
Comparison_result
|
fo.operator() ( Kernel::Point_2 p, Kernel::Line_2 h1, Kernel::Line_2 h2)
|
| |
This function compares the -coordinates of the vertical projection
of p on h1 and on h2, see (e) in the figure
below.
| Precondition: | h1 and h2 are not vertical. |
|
|
|
Comparison_result
|
fo.operator() ( Kernel::Line_2 l1, Kernel::Line_2 l2, Kernel::Line_2 h)
|
| |
Let be the
intersection
of lines and .
This function compares the -coordinates of and
the vertical projection of p on h, see (f) in the figure
below.
| Precondition: | l1, l2 intersect and h is not
vertical. |
|
|
|
Comparison_result
|
fo.operator() ( Kernel::Line_2 l1, Kernel::Line_2 l2, Kernel::Line_2 h1, Kernel::Line_2 h2)
|
| |
Let be the
intersection
of lines and . This function
compares the -coordinates of the vertical projection of p on
h1 and on h2, see (g) in the figure
below.
| Precondition: | l1 and l2 intersect; h1 and
h2 are not vertical. |
|
|
|
Comparison_result
|
fo.operator() ( Kernel::Point_2 p, Kernel::Segment_2 s)
|
| |
compares the -coordinates of and the vertical projection
of p on s. If s is vertical, then return
EQUAL when p lies on s, SMALLER when p lies
under s, and LARGER otherwise.
| Precondition: | p is within the x range of s. |
|
|
|
Comparison_result
|
fo.operator() ( Kernel::Point_2 p, Kernel::Segment_2 s1, Kernel::Segment_2 s2)
|
| |
This function compares the -coordinates of the vertical projection
of p on s1 and on s2. If s1 or s2
is vertical, then return EQUAL if they intersect, otherwise return
SMALLER if s1 lies below s2, and return LARGER
otherwise.
| Precondition: | p is within the x range of s1 and s2. |
|
