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Preserve freehand movement endpoints

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This commit is contained in:
ramox81 2026-08-20 16:52:20 +03:00
commit 5fbde4c711
1 changed files with 9 additions and 13 deletions
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22
src/modules/draw/draw/sketch.rs
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@ -1,6 +1,6 @@
// Freehand sketch tool — interactive command. // Freehand sketch tool — interactive command.
// //
// A sketch is recorded as equally spaced samples in the active working plane. // A sketch is recorded from cursor positions in the active working plane.
// The persisted SKPOLY setting chooses line segments, a lightweight polyline, // The persisted SKPOLY setting chooses line segments, a lightweight polyline,
// or a fit-point spline. Multiple temporary strokes may be recorded while the // or a fit-point spline. Multiple temporary strokes may be recorded while the
// command remains active; Exit records the remaining strokes and finishes, // command remains active; Exit records the remaining strokes and finishes,
@ -114,25 +114,21 @@ impl SketchCommand {
self.erase_engaged = false; self.erase_engaged = false;
} }
/// Add samples at exact `increment` intervals along the latest pointer /// Record the actual pointer position after it has moved by at least the
/// movement. A sparse stream of mouse events therefore produces the same /// configured increment. The increment is a minimum recording distance,
/// chord density as a dense stream instead of one long segment per event. /// not a segment length: no synthetic points are inserted between pointer
/// events, so every chord ends at a real movement position.
fn sample_to(&mut self, point: DVec3) { fn sample_to(&mut self, point: DVec3) {
let Some(stroke) = self.strokes.last_mut() else { let Some(stroke) = self.strokes.last_mut() else {
return; return;
}; };
let Some(mut cursor) = stroke.last().copied() else { let Some(cursor) = stroke.last().copied() else {
stroke.push(point); stroke.push(point);
return; return;
}; };
loop { let distance = cursor.distance(point);
let delta = point - cursor; if distance.is_finite() && distance + 1.0e-12 >= self.increment {
let distance = delta.length(); stroke.push(point);
if !distance.is_finite() || distance + 1.0e-12 < self.increment {
break;
}
cursor += delta / distance * self.increment;
stroke.push(cursor);
} }
} }