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Simplify builder method

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This commit is contained in:
Hanno Braun 2023-02-17 16:47:59 +01:00
parent 0817dd3c9a
commit a7365e670e
2 changed files with 71 additions and 96 deletions
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2
crates/fj-kernel/src/builder/cycle.rs
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@ -183,7 +183,7 @@ impl CycleBuilder for PartialCycle {
{ {
edges.map(|other| { edges.map(|other| {
let mut this = self.add_half_edge(); let mut this = self.add_half_edge();
this.write().update_from_other_edge(&other, &Some(*surface)); this.write().update_from_other_edge(&other, surface);
this this
}) })
} }

123
crates/fj-kernel/src/builder/edge.rs
View File

@ -58,7 +58,7 @@ pub trait HalfEdgeBuilder {
fn update_from_other_edge( fn update_from_other_edge(
&mut self, &mut self,
other: &Partial<HalfEdge>, other: &Partial<HalfEdge>,
surface: &Option<SurfaceGeometry>, surface: &SurfaceGeometry,
); );
} }
@ -222,7 +222,7 @@ impl HalfEdgeBuilder for PartialHalfEdge {
fn update_from_other_edge( fn update_from_other_edge(
&mut self, &mut self,
other: &Partial<HalfEdge>, other: &Partial<HalfEdge>,
surface: &Option<SurfaceGeometry>, surface: &SurfaceGeometry,
) { ) {
let global_curve = other.read().curve.read().global_form.clone(); let global_curve = other.read().curve.read().global_form.clone();
self.curve.write().global_form = global_curve.clone(); self.curve.write().global_form = global_curve.clone();
@ -230,66 +230,55 @@ impl HalfEdgeBuilder for PartialHalfEdge {
self.curve.write().path = self.curve.write().path =
other.read().curve.read().path.as_ref().and_then(|path| { other.read().curve.read().path.as_ref().and_then(|path| {
match surface { // We have information about the other edge's surface available.
Some(surface) => { // We need to use that to interpret what the other edge's curve
// We have information about the other edge's surface // path means for our curve path.
// available. We need to use that to interpret what the
// other edge's curve path means for our curve path.
match surface.u { match surface.u {
GlobalPath::Circle(circle) => { GlobalPath::Circle(circle) => {
// The other surface is curved. We're entering // The other surface is curved. We're entering some
// some dodgy territory here, as only some edge // dodgy territory here, as only some edge cases can be
// cases can be represented using our current // represented using our current curve/surface
// curve/surface representation. // representation.
match path { match path {
MaybeSurfacePath::Defined( MaybeSurfacePath::Defined(SurfacePath::Line(_))
SurfacePath::Line(_),
)
| MaybeSurfacePath::UndefinedLine => { | MaybeSurfacePath::UndefinedLine => {
// We're dealing with a line on a // We're dealing with a line on a rounded
// rounded surface.
//
// Based on the current uses of this
// method, we can make some assumptions:
//
// 1. The line is parallel to the u-axis
// of the other surface.
// 2. The surface that *our* edge is in
// is a plane that is parallel to the
// the plane of the circle that
// defines the curvature of the other
// surface. // surface.
// //
// These assumptions are necessary // Based on the current uses of this method, we
// preconditions for the following code // can make some assumptions:
// to work. But unfortunately, I see no
// way to check those preconditions
// here, as neither the other line nor
// our surface is necessarily defined
// yet.
// //
// Handling this case anyway feels like // 1. The line is parallel to the u-axis of the
// a grave sin, but I don't know what // other surface.
// else to do. If you tracked some // 2. The surface that *our* edge is in is a
// extremely subtle and annoying bug // plane that is parallel to the the plane of
// back to this code, I apologize. // the circle that defines the curvature of
// the other surface.
// //
// I hope that I'll come up with a // These assumptions are necessary preconditions
// better curve/surface representation // for the following code to work. But
// before this becomes a problem. // unfortunately, I see no way to check those
Some( // preconditions here, as neither the other line
MaybeSurfacePath::UndefinedCircle { // nor our surface is necessarily defined yet.
//
// Handling this case anyway feels like a grave
// sin, but I don't know what else to do. If you
// tracked some extremely subtle and annoying
// bug back to this code, I apologize.
//
// I hope that I'll come up with a better curve/
// surface representation before this becomes a
// problem.
Some(MaybeSurfacePath::UndefinedCircle {
radius: circle.radius(), radius: circle.radius(),
}, })
)
} }
_ => { _ => {
// The other edge is a line segment in a // The other edge is a line segment in a curved
// curved surface. No idea how to deal // surface. No idea how to deal with this.
// with this.
todo!( todo!(
"Can't connect edge to circle on \ "Can't connect edge to circle on curved \
curved surface" surface"
) )
} }
} }
@ -297,38 +286,24 @@ impl HalfEdgeBuilder for PartialHalfEdge {
GlobalPath::Line(_) => { GlobalPath::Line(_) => {
// The other edge is defined on a plane. // The other edge is defined on a plane.
match path { match path {
MaybeSurfacePath::Defined( MaybeSurfacePath::Defined(SurfacePath::Line(_))
SurfacePath::Line(_),
)
| MaybeSurfacePath::UndefinedLine => { | MaybeSurfacePath::UndefinedLine => {
// The other edge is a line segment on // The other edge is a line segment on a plane.
// a plane. That means our edge must be // That means our edge must be a line segment
// a line segment too. // too.
Some(MaybeSurfacePath::UndefinedLine) Some(MaybeSurfacePath::UndefinedLine)
} }
_ => { _ => {
// The other edge is a circle or arc on // The other edge is a circle or arc on a plane.
// a plane. I'm actually not sure what // I'm actually not sure what that means for our
// that means for our edge. We might be // edge. We might be able to represent it
// able to represent it somehow, but // somehow, but let's leave that as an exercise
// let's leave that as an exercise for // for later.
// later. todo!("Can't connect edge to circle on plane")
todo!(
"Can't connect edge to circle on \
plane"
)
} }
} }
} }
} }
}
None => {
// We know nothing about the surface the other edge is
// on. This means we can't infer anything about our
// curve from the other curve.
None
}
}
}); });
for (this, other) in self for (this, other) in self