AI_Assistant/cad-editor
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fix(view): correct 3D mesh interaction

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Sync projection controls from the active camera, preserve the UCS icon in perspective views, and use visible or selected 3D geometry for orbit pivots. Dense mesh vertex grips remain hidden.
This commit is contained in:
Hakan Seven 2026-08-12 19:49:52 +03:00
commit 0df2356243
6 changed files with 136 additions and 80 deletions
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22
src/app/update/viewport.rs
View file

@ -351,9 +351,8 @@ impl OpenCADStudio {
(origin, (x.as_vec3(), y.as_vec3(), z.as_vec3()))
}
/// Adopt the active viewport's grid *display* into the live toggle. Called
/// on load and whenever the active tab or viewport changes, so the grid
/// drawing follows the active viewport.
/// Adopt the active viewport's display state into the live toggles. Called
/// on load and whenever the active tab or viewport changes.
///
/// Grid *snap* (`SnapType::Grid`) is deliberately NOT adopted here: it stays
/// off by default everywhere and is controlled solely by the user's snap
@ -363,6 +362,9 @@ impl OpenCADStudio {
if let Some((grid_on, _snap_on)) = self.tabs[i].scene.active_tile_grid_snap() {
self.show_grid = grid_on;
}
let ortho = self.tabs[i].scene.active_camera_projection()
== crate::scene::Projection::Orthographic;
self.ribbon.set_ortho(ortho);
}
pub(in crate::app) fn sync_render_mode_to_active_tile(&mut self, i: usize) {
@ -982,12 +984,14 @@ impl OpenCADStudio {
return Task::none();
} else if self.tabs[i].scene.current_layout == "Model" {
if sel.orbit_pivot.is_none() {
// Selection centre when something is selected,
// otherwise the point under the cursor. (#229)
sel.orbit_pivot = self.tabs[i]
.scene
.orbit_pivot()
.or(Some(self.tabs[i].last_cursor_world));
let scene = &self.tabs[i].scene;
let bounds = scene.active_model_tile_bounds(vp_size.0, vp_size.1);
sel.orbit_pivot = Some(
scene
.orbit_pivot()
.or_else(|| scene.view_center_surface_pivot(bounds))
.unwrap_or_else(|| scene.camera.borrow().target),
);
}
let pivot = sel.orbit_pivot;
drop(sel);