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fix(snap): preserve OTRACK precision

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Keep tracking geometry in f64 until screen projection so typed and dynamic distances no longer expose f32 drift.\n\nCloses #439
This commit is contained in:
Hakan Seven 2026-07-24 17:56:06 +03:00
commit a413f75548
6 changed files with 116 additions and 130 deletions
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8
src/app/view/mod.rs
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@ -418,8 +418,8 @@ impl OpenCADStudio {
None
};
let ost_project =
|w: glam::Vec3, view_rot: glam::Mat4, eye: glam::DVec3, ob: iced::Rectangle| {
let ndc = view_rot.project_point3((w.as_dvec3() - eye).as_vec3());
|w: glam::DVec3, view_rot: glam::Mat4, eye: glam::DVec3, ob: iced::Rectangle| {
let ndc = view_rot.project_point3((w - eye).as_vec3());
iced::Point::new(
ob.x + (ndc.x + 1.0) * 0.5 * ob.width,
ob.y + (1.0 - ndc.y) * 0.5 * ob.height,
@ -446,7 +446,7 @@ impl OpenCADStudio {
match (otrack_proj, self.otrack_active) {
(Some((view_rot, eye, ob)), Some((base, _dir))) => {
let b = ost_project(base, view_rot, eye, ob);
let a = ost_project(tab.last_cursor_world.as_vec3(), view_rot, eye, ob);
let a = ost_project(tab.last_cursor_world, view_rot, eye, ob);
(b.x.is_finite() && a.x.is_finite()).then_some((b, a))
}
_ => None,
@ -455,7 +455,7 @@ impl OpenCADStudio {
let parallel_ref_marker: Option<iced::Point> =
match (otrack_proj, self.snapper.parallel_ref) {
(Some((view_rot, eye, ob)), Some((_, pt))) => {
let s = ost_project(pt, view_rot, eye, ob);
let s = ost_project(pt.as_dvec3(), view_rot, eye, ob);
(s.x.is_finite() && s.y.is_finite()).then_some(s)
}
_ => None,