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Diffstat (limited to 'src/perspective-line.cpp')
| -rw-r--r-- | src/perspective-line.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/perspective-line.cpp b/src/perspective-line.cpp index 158ddd47b..e5596cc1b 100644 --- a/src/perspective-line.cpp +++ b/src/perspective-line.cpp @@ -19,6 +19,7 @@ PerspectiveLine::PerspectiveLine (NR::Point const &pt, Box3D::Axis const axis, P Line (pt, *(perspective->get_vanishing_point(axis)), true) { g_assert (perspective != NULL); + g_assert (Box3D::is_single_axis_direction (axis)); if (perspective->get_vanishing_point(axis)->state == VP_INFINITE) { this->set_direction(perspective->get_vanishing_point(axis)->v_dir); |