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Comparison_result
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compare_x_at_y ( Point_2<Kernel> p, Line_2<Kernel> h)
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| |
compares the x-coordinates of p and the horizontal projection
of p on h; see (a) in the
figure below.
| Precondition: | h is not horizontal. |
|
|
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Comparison_result
|
compare_x_at_y ( Point_2<Kernel> p, Line_2<Kernel> h1, Line_2<Kernel> h2)
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This function compares the x-coordinates of the horizontal projection
of p on h1 and on h2; see (b) in the figure
below.
| Precondition: | h1 and h2 are not horizontal. |
|
|
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Comparison_result
|
compare_x_at_y ( Line_2<Kernel> l1, Line_2<Kernel> l2, Line_2<Kernel> h)
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| |
Let p be the
intersection
of lines l1 and l2.
This function compares the x-coordinates of p and
the horizontal projection of p on h; see (c) in the
figure below.
| Precondition: | l1 and l2 intersect and are not
horizontal; h is not horizontal. |
|
|
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Comparison_result
|
compare_x_at_y ( Line_2<Kernel> l1, Line_2<Kernel> l2, Line_2<Kernel> h1, Line_2<Kernel> h2)
|
| |
Let p be the
intersection
of lines l1 and l2. This
function compares the x-coordinates of the horizontal projection of
p on h1 and on h2; see (d) in the figure
below.
| Precondition: | l1 and l2 intersect and are not horizontal;
h1 and h2 are not horizontal. |
|
