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feat(viewport): unify in-viewport editing on the model-space path

Browse source 
Replace the leaky paper-projection approach to MSPACE editing with one
coordinate adapter that routes all interaction through the viewport's own
camera — the exact camera+rect the GPU draws the content with.

- Add Scene::viewport_edit_frame(canvas) -> (camera_for_viewport,
  viewport_screen_rect): the unified adapter. Inside a floating viewport
  the viewport is the active pane, so snap/pick/grip/preview/DYN run in
  model space and land on the pixels the GPU draws. Tracks pan/zoom/twist
  exactly (twist handled by camera_from_view); crop is pixel-preserving so
  full-rect projection + cursor offset matches.
- Route snap-move, click-pick, grip-drag, grip hit-test, grip render,
  hover (HoverDwellTick), selection (single/box/poly/cycle) and command
  entity-pick through it via pick_view / cursor_model_point helpers and an
  edit_cam-aware "active pane = viewport rect" override, so the existing
  tile offset plumbing just works. Fixes wrong-object hover/selection and
  stale snap after pan/zoom.
- DYN: project anchors with the viewport camera and shift to canvas space
  so the guide/labels sit correctly (also fixes a latent tiled-model bug).
- Separate grid snap from object snap entirely: new Snapper.grid_snap_on
  flag, Grid removed from the osnap mode set, evaluated independently of
  the osnap master. Object snap never catches grid; grid corners are
  picked only when grid snap is on, at lowest priority. Default off.
- grip.rs: project_rte + grips_to_screen_rte / find_hit_grip_rte taking
  (view_rot, eye) so grips project through the composed view.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Hakan Seven 2026-06-24 17:06:59 +03:00
commit a66d873e51
5 changed files with 427 additions and 171 deletions
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391
src/app/update.rs
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@ -4,7 +4,7 @@ use super::helpers::{
};
use super::{Message, OpenCADStudio, POLY_START_DELAY_MS};
use crate::modules::ModuleEvent;
use crate::scene::pick::grip::{find_hit_grip, find_hit_grip_paper, GripEdit};
use crate::scene::pick::grip::{find_hit_grip, find_hit_grip_paper, find_hit_grip_rte, GripEdit};
use crate::scene::model::object::GripApply;
use crate::scene::{
self, hover_id, Scene, TileEdgeOrient, VIEWCUBE_DRAW_PX, VIEWCUBE_PAD, VIEWCUBE_PX,
@ -360,21 +360,21 @@ impl OpenCADStudio {
/// model tile so a save writes them to that viewport's VPort entry (#121).
fn sync_vport_display(&mut self, i: usize) {
let grid_on = self.show_grid;
let snap_on = self.snapper.is_on(crate::snap::SnapType::Grid);
let snap_on = self.snapper.grid_snap();
self.tabs[i].scene.set_active_tile_grid_snap(grid_on, snap_on);
}
/// Adopt the active viewport's grid display + grid-snap into the live
/// toggles. Called on load and whenever the active tab or viewport changes,
/// so grid/snap follow the active viewport rather than a global setting.
/// 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.
///
/// Grid *snap* (`SnapType::Grid`) is deliberately NOT adopted here: it stays
/// off by default everywhere and is controlled solely by the user's snap
/// toggle, so it never silently leaks into object-snap when entering a
/// viewport whose stored `snap_on` flag happens to be set.
fn adopt_view_display(&mut self, i: usize) {
if let Some((grid_on, snap_on)) = self.tabs[i].scene.active_tile_grid_snap() {
if let Some((grid_on, _snap_on)) = self.tabs[i].scene.active_tile_grid_snap() {
self.show_grid = grid_on;
if snap_on {
self.snapper.enabled.insert(crate::snap::SnapType::Grid);
} else {
self.snapper.enabled.remove(&crate::snap::SnapType::Grid);
}
}
}
@ -2598,9 +2598,20 @@ impl OpenCADStudio {
// the active pane. `p_full` keeps the canvas-space cursor
// for screen overlays (cursor marker, snap glyph).
let p_full = p;
let tile_b = self.tabs[i]
.scene
.active_model_tile_bounds(vp_size.0, vp_size.1);
// Inside a floating viewport (MSPACE) the active "pane" is the
// viewport's own screen rectangle and its own camera — the very
// camera the GPU draws the content with. Routing picking / snap
// / projection through it makes in-viewport editing behave like
// the main model view (model coords, no paper round-trip) and
// track the viewport's pan / zoom / twist exactly.
let edit_frame = self.tabs[i].scene.viewport_edit_frame(vp_size);
let tile_b = match &edit_frame {
Some((_, full)) => *full,
None => self.tabs[i]
.scene
.active_model_tile_bounds(vp_size.0, vp_size.1),
};
let edit_cam = edit_frame.map(|(cam, _)| cam);
let p = iced::Point {
x: p_full.x - tile_b.x,
y: p_full.y - tile_b.y,
@ -2616,11 +2627,28 @@ impl OpenCADStudio {
width: vw,
height: vh,
};
let cam = self.tabs[i].scene.camera.borrow();
let raw_paper = cam.pick_on_target_plane(p, bounds);
let view_rot = cam.view_proj_rte(bounds); let eye = cam.eye_f64();
drop(cam);
let raw = self.tabs[i].scene.paper_to_model(raw_paper);
// In a viewport, pick the cursor's model point with the
// viewport camera directly; otherwise project on the paper
// sheet and map to model. Either way `raw` is model space.
let raw = match &edit_cam {
Some(cam) => cam.pick_on_target_plane(p, bounds),
None => {
let paper = self
.tabs[i]
.scene
.camera
.borrow()
.pick_on_target_plane(p, bounds);
self.tabs[i].scene.paper_to_model(paper)
}
};
let (view_rot, eye) = match &edit_cam {
Some(cam) => (cam.view_proj_rte(bounds), cam.eye_f64()),
None => {
let cam = self.tabs[i].scene.camera.borrow();
(cam.view_proj_rte(bounds), cam.eye_f64())
}
};
// First move of this drag: hide the edited entity from the
// base tessellation (one re-tess) so subsequent moves only
@ -2643,12 +2671,21 @@ impl OpenCADStudio {
// The edited entity is hidden, so it's already absent from
// `hit_test_wires` — snap against the set directly, no clone
// and no self-snap.
let all_wires = self.tabs[i].scene.hit_test_wires();
let all_wires = if let (Some(_), Some(h)) =
(&edit_cam, self.tabs[i].scene.active_viewport)
{
self.tabs[i].scene.model_wires_for_viewport_arc(h, bounds.height)
} else {
self.tabs[i].scene.hit_test_wires()
};
// Grip drag has no single rubber-band origin for a perp foot.
self.snapper.from_point = None;
let (go, gr) = self.tabs[i].ucs_grid_basis();
let snap_hit =
self.snapper.snap(raw, p, &all_wires[..], view_rot, eye, bounds, go, gr);
// `raw` is already model space (viewport camera or paper→model),
// and the wires are model space, so the snap result is model.
let snap_hit = self
.snapper
.snap(raw, p, &all_wires[..], view_rot, eye, bounds, go, gr);
let mut snapped = snap_hit.map(|s| s.world).unwrap_or(raw);
self.tabs[i].snap_result = snap_hit;
if let Some(s) = self.tabs[i].snap_result.as_mut() {
@ -2713,22 +2750,7 @@ impl OpenCADStudio {
width: vp_size.0,
height: vp_size.1,
};
let paper = if let Some(ref ucs) = self.tabs[i].active_ucs {
let origin = glam::DVec3::new(ucs.origin.x, ucs.origin.y, ucs.origin.z);
let normal = ucs_z_axis(ucs);
self.tabs[i]
.scene
.camera
.borrow()
.pick_on_plane(p, bounds, normal, origin)
} else {
self.tabs[i]
.scene
.camera
.borrow()
.pick_on_target_plane(p, bounds)
};
let world = self.tabs[i].scene.paper_to_model(paper);
let world = self.cursor_model_point(i, &edit_cam, p, bounds);
self.tabs[i].last_cursor_world = world.as_vec3();
}
@ -2761,43 +2783,31 @@ impl OpenCADStudio {
width: vw,
height: vh,
};
let cursor_paper = if let Some(ref ucs) = self.tabs[i].active_ucs {
let origin = glam::DVec3::new(ucs.origin.x, ucs.origin.y, ucs.origin.z);
let normal = ucs_z_axis(ucs);
self.tabs[i]
.scene
.camera
.borrow()
.pick_on_plane(p, bounds, normal, origin)
} else {
self.tabs[i]
.scene
.camera
.borrow()
.pick_on_target_plane(p, bounds)
};
let (view_rot, eye) = {
let cam = self.tabs[i].scene.camera.borrow();
(cam.view_proj_rte(bounds), cam.eye_f64())
// Inside a floating viewport the cursor, camera and wires are
// all model-space (the viewport's own camera draws the
// content), so snap / hit-test / preview run exactly like the
// main model view — no paper projection, tracks pan/zoom/twist.
let cursor_world = self.cursor_model_point(i, &edit_cam, p, bounds);
let (view_rot, eye) = match &edit_cam {
Some(cam) => (cam.view_proj_rte(bounds), cam.eye_f64()),
None => {
let cam = self.tabs[i].scene.camera.borrow();
(cam.view_proj_rte(bounds), cam.eye_f64())
}
};
// Sync grid-snap spacing to the adaptive spacing of the visible grid.
self.snapper.grid_spacing =
crate::ui::overlay::compute_grid_step(view_rot, bounds);
// In MSPACE, map paper-space cursor to model space so that
// command previews and snapping work in the correct coordinate space.
let cursor_world = self.tabs[i].scene.paper_to_model(cursor_paper);
// Inside a viewport the hit-test wires are projected into
// PAPER coordinates, so snapping must compare against the
// paper cursor — feeding the model-space (UTM) cursor would
// make `wire_in_range` reject every wire and snap nothing.
// The snapped paper point is mapped back to model below.
let snap_cursor = if self.tabs[i].scene.active_viewport.is_some() {
cursor_paper
} else {
cursor_world
};
// Cursor and wires are model-space; the snap result is model.
let snap_cursor = cursor_world;
let all_wires = self.tabs[i].scene.hit_test_wires();
let all_wires = if let (Some(_), Some(h)) =
(&edit_cam, self.tabs[i].scene.active_viewport)
{
self.tabs[i].scene.model_wires_for_viewport_arc(h, bounds.height)
} else {
self.tabs[i].scene.hit_test_wires()
};
let needs_entity = self.tabs[i]
.active_cmd
.as_ref()
@ -2876,11 +2886,11 @@ impl OpenCADStudio {
// ortho/polar don't re-constrain it.
h.aligned.as_dvec3()
} else {
// snap.world is paper-space for viewport-projected
// wires; convert to model-space for previews.
// Snap runs in model space (viewport camera or the
// model/paper view), so the result is already model.
let mut pt = self.tabs[i]
.snap_result
.map(|s| self.tabs[i].scene.paper_to_model(s.world))
.map(|s| s.world)
.unwrap_or(cursor_world);
// Object snap wins over ortho/polar: a snapped point
// is taken as-is so it isn't pulled onto the ortho
@ -2924,32 +2934,25 @@ impl OpenCADStudio {
// Project the step anchor (an explicit `dyn_anchor` or the
// last point) so the dynamic-input overlay can place its
// guide geometry and labels.
// `proj` returns a pane-local pixel; shift by the active pane
// origin (`tile_b`, the viewport rect inside a viewport) so
// the DYN guide/labels share the canvas frame with
// `last_cursor_screen` (= p_full, canvas space).
let proj = |bp: glam::Vec3| {
let ndc = view_rot.project_point3((bp.as_dvec3() - eye).as_vec3());
iced::Point::new(
(ndc.x + 1.0) * 0.5 * bounds.width,
(1.0 - ndc.y) * 0.5 * bounds.height,
(ndc.x + 1.0) * 0.5 * bounds.width + tile_b.x,
(1.0 - ndc.y) * 0.5 * bounds.height + tile_b.y,
)
};
// Anchors are stored in model coords; inside a viewport they
// must be mapped onto the paper sheet before projecting with
// the paper camera — otherwise a UTM model point lands
// millions of pixels away and the dynamic-input guide arc
// (radius = anchor→cursor distance) tessellates into a buffer
// big enough to abort the GPU. Compute into locals first to
// release the scene borrow before assigning.
let in_vp = self.tabs[i].scene.active_viewport.is_some();
// Anchors are stored in model coords and `proj` (view_rot /
// eye) is the model→screen view — the viewport camera inside
// a viewport, the model/paper camera otherwise — so feed them
// straight through; no paper mapping needed.
let anchor = self.tabs[i].dyn_anchor.or(self.last_point);
let dyn_ref = self.tabs[i].dyn_ref;
let map_paper = |bp: glam::Vec3| -> glam::Vec3 {
if in_vp {
self.tabs[i].scene.model_to_paper(bp.as_dvec3()).as_vec3()
} else {
bp
}
};
let lps = anchor.map(|a| proj(map_paper(a)));
let drs = dyn_ref.map(|r| proj(map_paper(r)));
let lps = anchor.map(|a| proj(a));
let drs = dyn_ref.map(|r| proj(r));
self.tabs[i].last_point_screen = lps;
self.tabs[i].dyn_ref_screen = drs;
@ -3276,7 +3279,14 @@ impl OpenCADStudio {
// cursor into it and use the tile's size for picking, so
// grip / selection hit-tests land in the right pane.
let p_full = p;
let tile_b = self.tabs[i].scene.active_model_tile_bounds(vw, vh);
// Inside a floating viewport the pane is the viewport's own rect
// + camera (matches the GPU); otherwise the active model tile.
let edit_frame = self.tabs[i].scene.viewport_edit_frame((vw, vh));
let tile_b = match &edit_frame {
Some((_, full)) => *full,
None => self.tabs[i].scene.active_model_tile_bounds(vw, vh),
};
let edit_cam = edit_frame.map(|(cam, _)| cam);
let p = iced::Point {
x: p_full.x - tile_b.x,
y: p_full.y - tile_b.y,
@ -3295,7 +3305,19 @@ impl OpenCADStudio {
{
if let Some(handle) = self.tabs[i].selected_handle {
let is_paper = self.tabs[i].scene.current_layout != "Model";
let grip_hit = if is_paper {
// In-viewport grips are model-space; project them with the
// viewport camera so they hit-test where the GPU draws
// them. Paper-space entities use the 2-D paper transform;
// the model tab uses the model camera.
let grip_hit = if let Some(cam) = &edit_cam {
find_hit_grip_rte(
p,
&self.tabs[i].selected_grips,
cam.view_proj_rte(bounds),
cam.eye_f64(),
bounds,
)
} else if is_paper {
let cam = self.tabs[i].scene.camera.borrow();
let aspect = if vh > 0.0 { vw / vh } else { 1.0 };
let half_h = cam.ortho_size();
@ -3420,11 +3442,22 @@ impl OpenCADStudio {
// camera + bounds. `p_full` keeps the canvas point for the
// box/poly selection rectangle (drawn in canvas space).
let p_full = p;
let (tile_vw, tile_vh, tile_off) = {
let (svw, svh) = self.tabs[i].scene.selection.borrow().vp_size;
let tb = self.tabs[i].scene.active_model_tile_bounds(svw, svh);
(tb.width, tb.height, iced::Point::new(tb.x, tb.y))
// Inside a floating viewport the pane is the viewport's own rect
// and camera (see the MoveCursor path); pick / snap then run in
// model space exactly where the GPU draws the content.
let canvas_sz = self.tabs[i].scene.selection.borrow().vp_size;
let edit_frame = self.tabs[i].scene.viewport_edit_frame(canvas_sz);
let (tile_vw, tile_vh, tile_off) = match &edit_frame {
Some((_, full)) => (full.width, full.height, iced::Point::new(full.x, full.y)),
None => {
let tb = self
.tabs[i]
.scene
.active_model_tile_bounds(canvas_sz.0, canvas_sz.1);
(tb.width, tb.height, iced::Point::new(tb.x, tb.y))
}
};
let edit_cam = edit_frame.map(|(cam, _)| cam);
let p = iced::Point {
x: p_full.x - tile_off.x,
y: p_full.y - tile_off.y,
@ -3449,35 +3482,24 @@ impl OpenCADStudio {
let tangent_obj_at_click = snap_taken.and_then(|s| s.tangent_obj);
let world_pt = {
// Project screen point onto the active UCS XY plane (or world XY when
// no UCS is active).
let raw_paper = if let Some(ref ucs) = self.tabs[i].active_ucs {
let origin = glam::DVec3::new(ucs.origin.x, ucs.origin.y, ucs.origin.z);
let normal = ucs_z_axis(ucs);
self.tabs[i]
.scene
.camera
.borrow()
.pick_on_plane(p, bounds, normal, origin)
} else {
self.tabs[i]
.scene
.camera
.borrow()
.pick_on_target_plane(p, bounds)
// Cursor → model point (viewport camera inside a viewport,
// else paper sheet → model). Model space throughout.
let raw = self.cursor_model_point(i, &edit_cam, p, bounds);
let (view_rot, eye) = match &edit_cam {
Some(cam) => (cam.view_proj_rte(bounds), cam.eye_f64()),
None => {
let c = self.tabs[i].scene.camera.borrow();
(c.view_proj_rte(bounds), c.eye_f64())
}
};
// Convert paper-space → model-space when inside a viewport.
let raw = self.tabs[i].scene.paper_to_model(raw_paper);
// Inside a viewport snapping runs in paper coords (the
// hit-test wires are paper-projected); the snapped paper
// point is mapped back to model below.
let snap_cursor = if self.tabs[i].scene.active_viewport.is_some() {
raw_paper
let snap_cursor = raw;
let all_wires = if let (Some(_), Some(h)) =
(&edit_cam, self.tabs[i].scene.active_viewport)
{
self.tabs[i].scene.model_wires_for_viewport_arc(h, bounds.height)
} else {
raw
self.tabs[i].scene.hit_test_wires()
};
let (view_rot, eye) = { let c = self.tabs[i].scene.camera.borrow(); (c.view_proj_rte(bounds), c.eye_f64()) };
let all_wires = self.tabs[i].scene.hit_test_wires();
let needs_tan = self.tabs[i]
.active_cmd
.as_ref()
@ -3498,11 +3520,8 @@ impl OpenCADStudio {
self.snapper.from_point = self.last_point;
self.snapper.snap(snap_cursor, p, &all_wires[..], view_rot, eye, bounds, go, gr)
};
// snap.world is in paper-space (projected wire coords in MSPACE);
// convert to model-space so commands receive consistent coordinates.
let mut pt = snap_hit
.map(|s| self.tabs[i].scene.paper_to_model(s.world))
.unwrap_or(raw);
// Snap runs in model space; the result is already model.
let mut pt = snap_hit.map(|s| s.world).unwrap_or(raw);
// When no UCS is active clamp to world XY; with a UCS the point is
// already constrained to that plane by the ray–plane intersection.
if self.tabs[i].active_ucs.is_none() {
@ -3607,8 +3626,7 @@ impl OpenCADStudio {
.map(|c| c.needs_entity_pick())
.unwrap_or(false)
{
let (view_rot2, eye2) = { let c = self.tabs[i].scene.camera.borrow(); (c.view_proj_rte(bounds), c.eye_f64()) };
let all_wires2 = self.tabs[i].scene.hit_test_wires();
let (view_rot2, eye2, all_wires2) = self.pick_view(i, &edit_cam, bounds);
let hit = scene::pick::hit_test::click_hit(p, &all_wires2[..], view_rot2, eye2, bounds)
.and_then(|s| Scene::handle_from_wire_name(s));
if let Some(handle) = hit {
@ -3796,8 +3814,7 @@ impl OpenCADStudio {
if elapsed_ms < POLY_START_DELAY_MS {
if let Some(a) = box_anchor {
let crossing = box_crossing;
let all_wires = self.tabs[i].scene.hit_test_wires();
let (view_rot, eye) = { let c = self.tabs[i].scene.camera.borrow(); (c.view_proj_rte(bounds), c.eye_f64()) };
let (view_rot, eye, all_wires) = self.pick_view(i, &edit_cam, bounds);
let mut handles: Vec<Handle> = scene::pick::hit_test::box_hit(
a,
p,
@ -3857,8 +3874,7 @@ impl OpenCADStudio {
(pts, sel.poly_crossing)
};
self.tabs[i].scene.selection.borrow_mut().poly_last_crossing = crossing;
let all_wires = self.tabs[i].scene.hit_test_wires();
let (view_rot, eye) = { let c = self.tabs[i].scene.camera.borrow(); (c.view_proj_rte(bounds), c.eye_f64()) };
let (view_rot, eye, all_wires) = self.pick_view(i, &edit_cam, bounds);
let mut handles: Vec<Handle> = scene::pick::hit_test::poly_hit(
&poly_pts,
crossing,
@ -3911,8 +3927,8 @@ impl OpenCADStudio {
sel.box_current = None;
} else {
if box_anchor.is_none() {
let all_wires = self.tabs[i].scene.hit_test_wires();
let (view_rot, eye) = { let c = self.tabs[i].scene.camera.borrow(); (c.view_proj_rte(bounds), c.eye_f64()) };
let (view_rot, eye, all_wires) =
self.pick_view(i, &edit_cam, bounds);
// Selection cycling: where two or more objects
// overlap, open a list box to pick which one; a
@ -4004,8 +4020,7 @@ impl OpenCADStudio {
} else {
let a = box_anchor.unwrap();
let crossing = box_crossing;
let all_wires = self.tabs[i].scene.hit_test_wires();
let (view_rot, eye) = { let c = self.tabs[i].scene.camera.borrow(); (c.view_proj_rte(bounds), c.eye_f64()) };
let (view_rot, eye, all_wires) = self.pick_view(i, &edit_cam, bounds);
let mut handles: Vec<Handle> = scene::pick::hit_test::box_hit(
a,
p,
@ -4463,8 +4478,16 @@ impl OpenCADStudio {
height: dwell.tile_size.1,
};
let p = dwell.point;
let (view_rot, eye) = { let c = self.tabs[i].scene.camera.borrow(); (c.view_proj_rte(bounds), c.eye_f64()) };
let all_wires = self.tabs[i].scene.hit_test_wires();
// Inside a viewport, hover-pick through the viewport camera +
// model wires so the rollover highlights the entity under the
// cursor (dwell.point / dwell.tile_size are already pane-local).
let canvas_sz = self.tabs[i].scene.selection.borrow().vp_size;
let edit_cam = self
.tabs[i]
.scene
.viewport_edit_frame(canvas_sz)
.map(|(cam, _)| cam);
let (view_rot, eye, all_wires) = self.pick_view(i, &edit_cam, bounds);
// Mirror the click-selection pick order so the rollover
// highlights every selectable object: wire → hatch →
// block-internal hatch → shaded 3D solid body.
@ -4617,7 +4640,7 @@ impl OpenCADStudio {
Task::none()
}
Message::ToggleGridSnap => {
self.snapper.toggle(crate::snap::SnapType::Grid);
self.snapper.toggle_grid_snap();
self.sync_vport_display(self.active_tab);
Task::none()
}
@ -8287,6 +8310,70 @@ impl OpenCADStudio {
self.tabs[i].scene.bump_geometry();
}
/// Project a pane-local cursor onto the active drawing plane and return a
/// **model-space** point. Inside a floating viewport `edit_cam` is the
/// viewport's own camera (a target-plane / UCS pick there already yields
/// model coords); otherwise the paper camera projects onto the sheet and
/// the result is mapped paper→model. Used by the readout, snap and click
/// paths so all three agree on the cursor's model location.
fn cursor_model_point(
&self,
i: usize,
edit_cam: &Option<crate::scene::view::camera::Camera>,
p: iced::Point,
bounds: iced::Rectangle,
) -> glam::DVec3 {
let plane = self.tabs[i].active_ucs.as_ref().map(|ucs| {
(
ucs_z_axis(ucs),
glam::DVec3::new(ucs.origin.x, ucs.origin.y, ucs.origin.z),
)
});
let pick = |cam: &crate::scene::view::camera::Camera| match plane {
Some((normal, origin)) => cam.pick_on_plane(p, bounds, normal, origin),
None => cam.pick_on_target_plane(p, bounds),
};
match edit_cam {
Some(cam) => pick(cam),
None => {
let paper = {
let c = self.tabs[i].scene.camera.borrow();
pick(&c)
};
self.tabs[i].scene.paper_to_model(paper)
}
}
}
/// Projection + hit-test wires for the active pane. Inside a floating
/// viewport (`edit_cam` Some) it returns the viewport camera and the live
/// **model** wires, so wire / hatch picking lands on the entity under the
/// cursor exactly where the GPU draws it; otherwise the model/paper camera
/// and the normal hit-test wires. `bounds` is the pane-local rectangle.
fn pick_view(
&self,
i: usize,
edit_cam: &Option<crate::scene::view::camera::Camera>,
bounds: iced::Rectangle,
) -> (glam::Mat4, glam::DVec3, std::sync::Arc<Vec<crate::scene::WireModel>>) {
match edit_cam {
Some(cam) => {
let wires = match self.tabs[i].scene.active_viewport {
Some(h) => self.tabs[i].scene.model_wires_for_viewport_arc(h, bounds.height),
None => self.tabs[i].scene.hit_test_wires(),
};
(cam.view_proj_rte(bounds), cam.eye_f64(), wires)
}
None => {
let (view_rot, eye) = {
let c = self.tabs[i].scene.camera.borrow();
(c.view_proj_rte(bounds), c.eye_f64())
};
(view_rot, eye, self.tabs[i].scene.hit_test_wires())
}
}
}
fn update_grip_hover(&mut self, i: usize, p: iced::Point) {
const HOVER_OPEN_MS: u128 = 600;
const POPUP_DISMISS_PX: f32 = 80.0;
@ -8311,7 +8398,25 @@ impl OpenCADStudio {
height: vh,
};
let is_paper = self.tabs[i].scene.current_layout != "Model";
let hit = if is_paper {
// In-viewport grips are model-space — project with the viewport camera
// at the viewport's own rect; the cursor is mapped into that rect.
let edit_frame = self.tabs[i].scene.viewport_edit_frame((vw, vh));
let hit = if let Some((cam, full)) = &edit_frame {
let local = iced::Rectangle {
x: 0.0,
y: 0.0,
width: full.width,
height: full.height,
};
let p_local = iced::Point::new(p.x - full.x, p.y - full.y);
find_hit_grip_rte(
p_local,
&self.tabs[i].selected_grips,
cam.view_proj_rte(local),
cam.eye_f64(),
local,
)
} else if is_paper {
let cam = self.tabs[i].scene.camera.borrow();
let aspect = if vh > 0.0 { vw / vh } else { 1.0 };
let half_h = cam.ortho_size();