diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/utils/adt/geo_ops.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/src/backend/utils/adt/geo_ops.c b/src/backend/utils/adt/geo_ops.c index f3b6a389ff4..8a99df1356c 100644 --- a/src/backend/utils/adt/geo_ops.c +++ b/src/backend/utils/adt/geo_ops.c @@ -1072,13 +1072,20 @@ line_construct_pm(Point *pt, double m) { LINE *result = (LINE *) palloc(sizeof(LINE)); - /* use "mx - y + yinter = 0" */ - result->A = m; - result->B = -1.0; if (m == DBL_MAX) - result->C = pt->y; + { + /* vertical - use "x = C" */ + result->A = -1; + result->B = 0; + result->C = pt->x; + } else + { + /* use "mx - y + yinter = 0" */ + result->A = m; + result->B = -1.0; result->C = pt->y - m * pt->x; + } #ifdef NOT_USED result->m = m; |