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fix(viewport): stabilize grid and grip clipping

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Keep the grid on UCS XY, derive spacing from zoom, and clip perspective lines by screen density without dropping the near side.
This commit is contained in:
Hakan Seven 2026-07-27 11:36:07 +03:00
commit 7f1a1ff57b
4 changed files with 573 additions and 233 deletions
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20
src/app/view/mod.rs
View file

@ -1,6 +1,5 @@
use super::document::DocumentTab;
use super::document::DynComponent;
use super::helpers::grid_plane_from_camera;
use super::history::history_dropdown_labels;
use super::{Message, OpenCADStudio};
use crate::scene::pick::grip::{grips_to_screen, grips_to_screen_paper, grips_to_screen_rte};
@ -228,12 +227,15 @@ impl OpenCADStudio {
} else {
model_basis
};
let plane = grid_plane_from_camera(cam.pitch, cam.yaw);
crate::ui::overlay::GridParams {
view_rot: cam.view_proj_rte(bounds),
eye: cam.eye(),
bounds,
plane,
step: crate::ui::overlay::compute_grid_step(
cam.distance,
cam.fov_y,
bounds,
),
origin,
axes,
}
@ -326,6 +328,17 @@ impl OpenCADStudio {
} else {
vec![]
};
let grip_clip = if grips.is_empty() {
None
} else {
let (vw, vh) = tab.scene.selection.borrow().vp_size;
Some(
tab.scene
.viewport_edit_frame((vw, vh))
.map(|(_, bounds)| bounds)
.unwrap_or_else(|| tab.scene.active_model_tile_bounds(vw, vh)),
)
};
let (vw, vh) = tab.scene.selection.borrow().vp_size;
// Active tile rectangle (canvas-offset included) so grid / UCS
@ -508,6 +521,7 @@ impl OpenCADStudio {
snap_ext_base,
snap_ext_base2,
grips,
grip_clip,
ucs_icons,
ost_points,
otrack_line,