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monsterous ifs

This commit is contained in:
Ophir Setter 2008-07-28 06:10:18 +00:00
parent 407aa15da8
commit 3c1079c43b
2 changed files with 28 additions and 28 deletions
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52
Snap_rounding_2/include/CGAL/Snap_rounding_2.h
View File

@ -335,8 +335,8 @@ bool Hot_pixel<Traits_>::intersect_left(const Segment_2 & seg,
Comparison_result c_target = compare_y(construct_vertex(seg, 1), p_up);
Comparison_result c_source = compare_y(construct_vertex(seg, 0), p_up);
return(c_p != EQUAL || seg_dir == SEG_UP_LEFT && c_source != EQUAL ||
seg_dir == SEG_DOWN_RIGHT && c_target != EQUAL);
return(c_p != EQUAL || (seg_dir == SEG_UP_LEFT && c_source != EQUAL) ||
(seg_dir == SEG_DOWN_RIGHT && c_target != EQUAL));
} else if (assign(s,result))
return(true);
else
@ -372,8 +372,8 @@ bool Hot_pixel<Traits_>::intersect_right(const Segment_2 & seg,
Comparison_result c4 = compare_y(trg, p_up);
if (c1 == EQUAL)
return (seg_dir == SEG_UP_RIGHT && c3 != EQUAL ||
seg_dir == SEG_DOWN_LEFT && c4 != EQUAL);
return ((seg_dir == SEG_UP_RIGHT && c3 != EQUAL) ||
(seg_dir == SEG_DOWN_LEFT && c4 != EQUAL));
else if (c2 == EQUAL)
return false;// was checked
@ -381,10 +381,10 @@ bool Hot_pixel<Traits_>::intersect_right(const Segment_2 & seg,
Comparison_result c_target = compare_x(p_right, trg);
Comparison_result c_source = compare_x(p_right, src);
return ((seg_dir == SEG_LEFT || seg_dir == SEG_DOWN_LEFT ||
seg_dir == SEG_UP_LEFT) && c_target != EQUAL ||
(seg_dir == SEG_RIGHT || seg_dir == SEG_DOWN_RIGHT ||
seg_dir == SEG_UP_RIGHT) && c_source != EQUAL);
return (((seg_dir == SEG_LEFT || seg_dir == SEG_DOWN_LEFT ||
seg_dir == SEG_UP_LEFT) && c_target != EQUAL) ||
((seg_dir == SEG_RIGHT || seg_dir == SEG_DOWN_RIGHT ||
seg_dir == SEG_UP_RIGHT) && c_source != EQUAL));
}
return false;
}
@ -411,9 +411,8 @@ bool Hot_pixel<Traits_>::intersect_bot(const Segment_2 & seg,
Comparison_result c_target = compare_x(construct_vertex(seg, 1), p_right);
Comparison_result c_source = compare_x(construct_vertex(seg, 0), p_right);
return(c_p != EQUAL || seg_dir == SEG_UP_LEFT &&
c_target != EQUAL || seg_dir == SEG_DOWN_RIGHT &&
c_source != EQUAL);
return(c_p != EQUAL || (seg_dir == SEG_UP_LEFT && c_target != EQUAL) ||
(seg_dir == SEG_DOWN_RIGHT && c_source != EQUAL));
} else if (assign(s,result))
return(true);
else
@ -450,10 +449,10 @@ bool Hot_pixel<Traits_>::intersect_top(const Segment_2 & seg,
if (c1 == EQUAL || c2 == EQUAL)
return(false);// were checked
else
return((seg_dir == SEG_DOWN || seg_dir == SEG_DOWN_LEFT ||
seg_dir == SEG_DOWN_RIGHT) && c3 != EQUAL ||
(seg_dir == SEG_UP || seg_dir == SEG_UP_LEFT ||
seg_dir == SEG_UP_RIGHT) && c4 != EQUAL);
return(((seg_dir == SEG_DOWN || seg_dir == SEG_DOWN_LEFT ||
seg_dir == SEG_DOWN_RIGHT) && c3 != EQUAL) ||
((seg_dir == SEG_UP || seg_dir == SEG_UP_LEFT ||
seg_dir == SEG_UP_RIGHT) && c4 != EQUAL));
}
return(false);
}
@ -503,17 +502,18 @@ bool Hot_pixel_dir_cmp<Traits_>::operator ()(const Hot_pixel * h1,
SEG_Direction seg_dir = h1->get_direction();
// Point segment intersects only one pixel, thus ignored
return(seg_dir == SEG_UP_RIGHT &&
(cx == SMALLER || cx == EQUAL &&
cy == SMALLER) || seg_dir == SEG_UP_LEFT &&
(cx == LARGER ||
cx == EQUAL && cy == SMALLER) || seg_dir == SEG_DOWN_RIGHT &&
(cx == SMALLER || cx == EQUAL && cy == LARGER) ||
seg_dir == SEG_DOWN_LEFT &&
(cx == LARGER || cx == EQUAL &&
cy == LARGER) || seg_dir == SEG_UP && cy == SMALLER ||
seg_dir == SEG_DOWN && cy == LARGER || seg_dir == SEG_LEFT &&
cx == LARGER || seg_dir == SEG_RIGHT && cx == SMALLER);
return((seg_dir == SEG_UP_RIGHT && (cx == SMALLER || (cx == EQUAL &&
cy == SMALLER))) ||
(seg_dir == SEG_UP_LEFT && (cx == LARGER || (cx == EQUAL &&
cy == SMALLER))) ||
(seg_dir == SEG_DOWN_RIGHT && (cx == SMALLER || (cx == EQUAL &&
cy == LARGER))) ||
(seg_dir == SEG_DOWN_LEFT && (cx == LARGER || (cx == EQUAL &&
cy == LARGER))) ||
(seg_dir == SEG_UP && cy == SMALLER) ||
(seg_dir == SEG_DOWN && cy == LARGER) ||
(seg_dir == SEG_LEFT && cx == LARGER) ||
(seg_dir == SEG_RIGHT && cx == SMALLER));
}
/*! */

4
Snap_rounding_2/include/CGAL/Snap_rounding_kd_2.h
View File

@ -174,8 +174,8 @@ private:
// force the vector to [0-90)
Vector_2 v(construct_vertex(seg, 0), construct_vertex(seg, 1));
if (cx == EQUAL || cx == LARGER && cy == SMALLER ||
cx == SMALLER && cy == LARGER)
if (cx == EQUAL || (cx == LARGER && cy == SMALLER) ||
(cx == SMALLER && cy == LARGER))
v = v.perpendicular(RIGHT_TURN);
Direction_2 d(v.direction());