diff options
Diffstat (limited to 'src/live_effects/pathoutlineprovider.cpp')
| -rw-r--r-- | src/live_effects/pathoutlineprovider.cpp | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/src/live_effects/pathoutlineprovider.cpp b/src/live_effects/pathoutlineprovider.cpp index 080f42c08..d7f5362aa 100644 --- a/src/live_effects/pathoutlineprovider.cpp +++ b/src/live_effects/pathoutlineprovider.cpp @@ -528,14 +528,23 @@ Geom::PathVector outlinePath(const Geom::PathVector& path_in, double line_width, case butt_round:
pb.arcTo((-line_width) / 2, (-line_width) / 2, 0., true, true, against_direction.initialPoint() );
break;
- case butt_pointy:
- //I have ZERO idea what to do here.
+ case butt_pointy: {
+ Geom::Point end_deriv = -Geom::unitTangentAt(Geom::reverse(path_in[i].back().toSBasis()), 0.);
+ double radius = 0.5 * Geom::distance(with_direction.finalPoint(), against_direction.initialPoint());
+ Geom::Point midpoint = 0.5 * (with_direction.finalPoint() + against_direction.initialPoint()) + radius*end_deriv;
+ pb.lineTo(midpoint);
pb.lineTo(against_direction.initialPoint());
break;
- case butt_square:
+ }
+ case butt_square: {
+ Geom::Point end_deriv = -Geom::unitTangentAt(Geom::reverse(path_in[i].back().toSBasis()), 0.);
+ double radius = 0.5 * Geom::distance(with_direction.finalPoint(), against_direction.initialPoint());
+ pb.lineTo(with_direction.finalPoint() + radius*end_deriv);
+ pb.lineTo(against_direction.initialPoint() + radius*end_deriv);
pb.lineTo(against_direction.initialPoint());
break;
}
+ }
} else {
pb.moveTo(against_direction.initialPoint());
}
@@ -551,14 +560,23 @@ Geom::PathVector outlinePath(const Geom::PathVector& path_in, double line_width, case butt_round:
pb.arcTo((-line_width) / 2, (-line_width) / 2, 0., true, true, with_direction.initialPoint() );
break;
- case butt_pointy:
- //I have ZERO idea what to do here.
+ case butt_pointy: {
+ Geom::Point end_deriv = -Geom::unitTangentAt(path_in[i].front().toSBasis(), 0.);
+ double radius = 0.5 * Geom::distance(against_direction.finalPoint(), with_direction.initialPoint());
+ Geom::Point midpoint = 0.5 * (against_direction.finalPoint() + with_direction.initialPoint()) + radius*end_deriv;
+ pb.lineTo(midpoint);
pb.lineTo(with_direction.initialPoint());
break;
- case butt_square:
+ }
+ case butt_square: {
+ Geom::Point end_deriv = -Geom::unitTangentAt(path_in[i].front().toSBasis(), 0.);
+ double radius = 0.5 * Geom::distance(against_direction.finalPoint(), with_direction.initialPoint());
+ pb.lineTo(against_direction.finalPoint() + radius*end_deriv);
+ pb.lineTo(with_direction.initialPoint() + radius*end_deriv);
pb.lineTo(with_direction.initialPoint());
break;
}
+ }
}
pb.flush();
for (unsigned m = 0; i < pb.peek().size(); i++) {
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