forked from 1b-agent/opencadstudio-upstream
Karim Jerbi
0425f979f9
- Render planar circles, circular arcs, ellipses, and elliptical arcs analytically via GPU-instanced screen-space quads and WGSL shaders. - Implement exact arc sweep clamping with round end caps matching the CAD wire shader. - Implement robust Newton-Raphson closest-point solver for ellipses with isotropic screen-space derivative anti-aliasing. - Integrate into wire pipeline and PersistentWireArena upload paths. - Remove unused mesh_volume_centroid function in doc_api.
767 lines
31 KiB
Rust
767 lines
31 KiB
Rust
/// Tag for pre-baked snap candidates stored inside a WireModel.
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/// Kept separate from `snap::SnapType` to avoid circular module dependencies.
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#[derive(Clone, Copy, Debug)]
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pub enum SnapHint {
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/// Geometric center of a circle, arc, or ellipse.
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Center,
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/// Point entity location.
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Node,
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/// 0 / 90 / 180 / 270 ° point on a circle/arc (within arc span).
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Quadrant,
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/// Insertion point of text or block.
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Insertion,
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/// Midpoint of a curve that has one well-defined midpoint (an arc's
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/// arc-length centre, a spline's `t = 0.5`). Lines / polylines do
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/// not use this — their midpoints are derived from `key_vertices`.
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Midpoint,
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/// An end of a curve that is not a chain of straight segments — an arc,
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/// an elliptical arc, a spline.
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///
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/// Such a curve cannot put its ends in `key_vertices`: consecutive
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/// entries there are taken to be joined by a straight segment, so an
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/// arc's two ends would also produce a midpoint snap out on the chord,
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/// which is not on the geometry.
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Endpoint,
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}
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/// Geometric primitive used by the tangent-snap engine.
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#[derive(Clone, Debug)]
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pub enum TangentGeom {
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/// Infinite line through these two world-space points.
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Line { p1: [f32; 3], p2: [f32; 3] },
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/// Complete circle.
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Circle { center: [f32; 3], radius: f32 },
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/// Complete circle in an arbitrary world-space plane.
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PlanarCircle {
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center: [f64; 3],
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axis_x: [f64; 3],
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axis_y: [f64; 3],
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radius: f64,
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},
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/// Bounded circular arc in its world-space plane.
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Arc {
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center: [f64; 3],
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axis_x: [f64; 3],
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axis_y: [f64; 3],
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radius: f64,
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start_angle: f64,
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end_angle: f64,
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},
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/// Ellipse or elliptical arc in an arbitrary world-space plane.
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PlanarEllipse {
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center: [f64; 3],
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major_axis: [f64; 3],
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normal: [f64; 3],
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minor_axis_ratio: f64,
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start_param: f64,
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end_param: f64,
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},
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}
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/// Viewport-relative display transform for a point marker.
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#[derive(Clone, Copy, Debug, PartialEq)]
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pub struct PointMarker {
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pub origin: glam::DVec3,
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pub normal: glam::DVec3,
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pub axis_x: glam::DVec3,
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pub axis_y: glam::DVec3,
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pub viewport_percent: f32,
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}
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#[derive(Clone, Copy, Debug)]
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pub struct PatternStationPiece {
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pub source_segment: u32,
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pub source_distances: [f32; 2],
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pub segment_distances: [f32; 2],
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pub vector: [f32; 3],
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}
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#[derive(Clone, Debug)]
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pub(crate) struct PatternStationMap {
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pub point_segments: Vec<i32>,
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pub pieces: Vec<PatternStationPiece>,
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}
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pub(crate) fn pattern_station_values(data: &[f32], point_count: usize) -> Option<(&[f32], f32)> {
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(data.len() >= point_count + 1).then(|| (&data[..point_count], data[point_count]))
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}
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pub(crate) fn encode_pattern_stations(
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mut stations: Vec<f32>,
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source_length: f32,
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point_segments: &[i32],
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pieces: &[PatternStationPiece],
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) -> Vec<f32> {
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let point_count = stations.len();
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stations.push(source_length);
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if point_segments.len() != point_count || pieces.is_empty() {
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return stations;
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}
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stations.extend(point_segments.iter().map(|segment| *segment as f32));
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for piece in pieces {
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stations.push(piece.source_segment as f32);
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stations.extend(piece.source_distances);
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stations.extend(piece.segment_distances);
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stations.extend(piece.vector);
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}
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stations
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}
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pub(crate) fn decode_pattern_station_map(
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data: &[f32],
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point_count: usize,
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) -> Option<PatternStationMap> {
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let metadata_start = point_count.checked_mul(2)?.checked_add(1)?;
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if data.len() < metadata_start || (data.len() - metadata_start) % 8 != 0 {
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return None;
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}
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let point_segments = data[point_count + 1..metadata_start]
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.iter()
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.map(|value| *value as i32)
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.collect();
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let pieces = data[metadata_start..]
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.chunks_exact(8)
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.map(|values| PatternStationPiece {
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source_segment: values[0] as u32,
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source_distances: [values[1], values[2]],
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segment_distances: [values[3], values[4]],
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vector: [values[5], values[6], values[7]],
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})
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.collect();
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Some(PatternStationMap {
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point_segments,
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pieces,
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})
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}
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impl PointMarker {
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pub fn resolve(self, point: glam::DVec3, view_height: f64) -> glam::DVec3 {
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let normal = self.normal.normalize_or(glam::DVec3::Z);
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let delta = point - self.origin;
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let axial = normal * delta.dot(normal);
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let scale = self.viewport_percent.max(0.0) as f64 * 0.01 * view_height.max(0.0);
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self.origin + axial + (delta - axial) * scale
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}
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}
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/// A 1-D entity (line, arc, polyline) represented as an ordered set of
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/// world-space points rendered as a quad strip (TriangleList).
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///
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/// Linetype is encoded as a GPU-side dash pattern so the CPU never needs to
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/// split wires into per-dash segments. `pattern_length = 0.0` means solid.
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/// Everything needed to resolve a wire's display colour against a background,
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/// kept so the resolution can be redone for another background without
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/// re-tessellating.
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///
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/// `None` — the default — means the wire did not record its inputs and a
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/// resolution pass must leave it alone. Only `Batches::finalize` fills it in.
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pub type BgAdapt = Option<Box<BgAdaptInputs>>;
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/// The inputs `Batches::finalize` consumes when it resolves a colour.
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///
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/// The flags are independent — a wire can paint the background itself while
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/// its glyphs still adapt — so this mirrors that code's branches rather than
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/// collapsing them into one enum.
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#[derive(Clone, Debug, Default, PartialEq)]
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pub struct BgAdaptInputs {
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/// Colour before adaptation. Resolution always recomputes from here rather
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/// than from `WireModel::color`, so it is idempotent and safe over a set
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/// mixing memo hits with freshly tessellated wires. `adapt_to_bg` is
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/// **not** re-appliable: a near-white colour snaps to pure black on a
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/// light background, and pure black comes back pure *white* on a dark one,
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/// losing the tint.
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pub raw_color: [f32; 4],
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/// Glyph colours before adaptation, parallel to `WireModel::text_verts`.
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/// Empty when the wire has no glyphs or their colour never adapts.
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pub text_raw_colors: Vec<[f32; 4]>,
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/// Adapt against this instead of the live background: an MTEXT carrying
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/// its own background fill.
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pub contrast_bg: Option<[f32; 4]>,
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/// The wire paints the background; its colour *is* the live background.
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pub canvas_color: bool,
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/// Authored colour. The background must not touch it, glyphs included.
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pub preserve_color: bool,
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}
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#[derive(Clone, Debug)]
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pub struct WireModel {
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/// Unique identifier — the handle value as a decimal string.
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pub name: String,
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/// Ordered world-space positions forming a strip of quads. Each entry is
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/// the "high" half of a double-single f32 pair; [`points_low`] carries the
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/// matching residual so the shader can reconstruct the f64 source.
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pub points: Vec<[f32; 3]>,
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/// Low-bit residual paired index-for-index with [`points`]. Empty means
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/// "all-zero residual" (interactive draw / preview wires whose coordinates
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/// don't need sub-f32 precision). Tessellation from CAD f64 fills it.
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pub points_low: Vec<[f32; 3]>,
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/// Point-marker scaling shared by the GPU, picking, and plotting paths.
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pub point_marker: Option<PointMarker>,
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/// RGBA colour in [0, 1].
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pub color: [f32; 4],
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/// How `color` and `text_verts` follow the background, or `None` when this
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/// wire's colour must not be re-resolved.
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pub bg_adapt: BgAdapt,
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/// Whether this wire is currently selected.
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#[allow(dead_code)]
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pub selected: bool,
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/// Total length of one pattern repeat (world units). 0 = solid line.
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pub pattern_length: f32,
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/// Up to 8 pattern elements: positive = dash length, negative = gap length.
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/// Unused slots must be 0.0 (acts as end-of-pattern sentinel in shader).
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pub pattern: [f32; 8],
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/// Rendered line width in screen pixels (half-width = line_weight_px / 2).
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pub line_weight_px: f32,
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/// World-space band width (drawing units). `0.0` = a normal wire whose
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/// width comes from `line_weight_px` (screen pixels). Non-zero = a wide
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/// polyline: the shader expands this centre-line to `world_width` world
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/// units (scaling with zoom) so the band IS the wire — the linetype dash
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/// pattern then applies to the band instead of a separate hatch fill.
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pub world_width: f32,
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/// Per-point full band width (drawing units), aligned index-for-index with
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/// [`points`], for a polyline whose width VARIES (a taper). Empty = a
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/// constant band of `world_width`. The wire shader reads the two endpoint
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/// widths of each segment and interpolates, so the band tapers smoothly.
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pub taper_widths: Vec<f32>,
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/// Centreline stations and optional source-piece transform metadata.
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pub pattern_stations: Vec<f32>,
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/// ACI color index (1-255). 0 means true-color or unknown (no CTB lookup).
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pub aci: u8,
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/// Pre-baked snap candidates (Center, Node, Quadrant, Insertion).
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pub snap_pts: Vec<(glam::DVec3, SnapHint)>,
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/// Per-segment tangent geometry for Tangent snap.
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/// Line/Arc entities: 1 entry. LwPolyline: 1 entry per segment.
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pub tangent_geoms: Vec<TangentGeom>,
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/// True polyline vertices used for Endpoint/Midpoint snap.
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/// Non-empty only for entities with distinct vertex positions (Line, LwPolyline).
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/// Empty for tessellated curves (Circle, Arc, Ellipse) which use snap_pts instead.
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pub key_vertices: Vec<[f64; 3]>,
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/// World-space 2-D bounding box [min_x, min_y, max_x, max_y].
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/// Set from acadrust `bounding_box()` in `tessellate_entity()`.
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/// Preview / interim wires use `UNBOUNDED_AABB` so they are never pre-rejected
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/// by the snap world-space filter.
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pub aabb: [f32; 4],
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/// When false the linetype pattern restarts at each NaN-separated segment
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/// (DXF PLINEGEN=0). When true the pattern runs continuously (PLINEGEN=1).
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pub plinegen: bool,
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/// DGN line-style marker. When false (every standard linetype) the dash
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/// pattern uses the normal phase: A-type end alignment for dash-first
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/// patterns, else centred. When true (DGN pipe walls) the pattern is drawn
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/// from the START vertex with continuous phase and no A-type end forcing —
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/// DGN line styles are not end-aligned.
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pub dash_from_start: bool,
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/// Shared "A"-type end-dash length for MLINE elements. `Some(len)` makes the
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/// dash shader use `len` as the begin/end solid-dash length for EVERY
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/// parallel element (derived once from the multiline's centre-line length),
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/// while `align_total` stays each element's own length — so all elements
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/// share one interior phase (perpendicular dashes line up) yet each still
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/// ends on a dash. `None` (the default) = per-wire A-type / from-start.
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pub dash_align_end: Option<f32>,
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/// Pre-triangulated solid fill: flat vertex list, 3 per triangle (world-offset applied).
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/// Non-empty only for PolyfaceMesh / PolygonMesh entities.
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pub fill_tris: Vec<[f32; 3]>,
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/// Low residual paired with [`fill_tris`] (double-single). Empty = all-zero;
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/// tessellation from CAD f64 fills it so fills stay precise at UTM scale.
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pub fill_tris_low: Vec<[f32; 3]>,
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/// Pre-triangulated pick-only geometry: flat vertex list, 3 per triangle.
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/// Hit-testing treats these as solid; this wire's own draw never uses them.
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///
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/// Carries the interior of things whose surface the cursor would otherwise
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/// fall through, because [`points`] only bounds them:
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///
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/// - An entity extruded by a DXF thickness (code 39) — the swept wall
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/// between each base segment and its extruded copy. Drawn as its four
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/// wireframe edges, with nothing in between to pick.
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/// - A wide polyline (codes 43 / 40 / 41) — the solid band. It *is* drawn,
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/// but by the hatch pipeline off `wide_fills`, so the wire that carries
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/// its centreline has no fill of its own to hit-test.
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///
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/// Separate from [`fill_tris`] because that channel reaches the GPU: a
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/// thickness wall put there would render shaded and change how every such
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/// drawing looks, and a polyline band would be drawn a second time on top
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/// of the hatch that already draws it.
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pub pick_tris: Vec<[f32; 3]>,
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/// Low residual paired with [`pick_tris`] (double-single). Empty = all-zero.
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pub pick_tris_low: Vec<[f32; 3]>,
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/// SDF glyph quads for this entity's text (TEXT / MTEXT / dimension text /
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/// block-internal text). Non-empty only when SDF text is enabled and this
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/// wire carries a text run. Rides with the wire so it is cached by the
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/// tess memo, cloned on hit, and transformed by the block-expand loop
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/// exactly like `points` — no separate collector pass. The renderer
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/// gathers these across all wires into the text vertex buffer.
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pub text_verts: Vec<crate::scene::pipeline::text_gpu::TextVertex>,
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/// Block-local composed draw-order offset in (-1, 1) for a wire that must
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/// order against its *siblings inside the block* — currently wide-polyline
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/// bands, whose solid area would otherwise cover later-drawn siblings.
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/// `None` (all other wires) = the whole-insert depth resolved from `name`.
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/// `Some(local)` composes at draw time: `insert_depth + local * insert_half`,
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/// mirroring how exploded block fills seed their depth, so bands and fills
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/// from the same block interleave by the block's internal draw order.
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pub depth_override: Option<f32>,
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/// Whether this wire is drawn in the normal viewport pass.
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pub display_visible: bool,
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/// Whether this wire is included in plotted output.
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pub plot_visible: bool,
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/// `true` when [`fill_tris`] is a real 3-D surface (PolyfaceMesh /
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/// PolygonMesh face) that must render with hidden-surface depth and only in
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/// shaded modes. `false` for a flat 2-D overlay fill (SOLID arrowhead,
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/// dimension / MultiLeader text background, greek-LOD text) that draws in
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/// every view mode. The render pass can't infer this from `fill_tris_low`
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/// alone — a 2-D fill at UTM scale carries a low residual too.
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pub fill_is_3d: bool,
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/// `true` only for a planar SOLID entity's interior. Wireframe 3D omits
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/// this fill while preserving its perimeter and every other 2-D overlay.
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pub fill_is_2d_solid: bool,
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/// Shared block-render source and this placement's translation.
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pub render_instance: Option<super::instance_model::RenderInstance>,
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}
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impl WireModel {
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pub const WHITE: [f32; 4] = [1.00, 1.00, 1.00, 1.0];
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pub const CYAN: [f32; 4] = [0.25, 0.85, 1.00, 1.0];
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pub const SELECTED: [f32; 4] = [0.15, 0.55, 1.00, 1.0];
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/// Rollover (hover) highlight — orange, distinct from the blue selection.
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pub const HOVER: [f32; 4] = [0.95, 0.55, 0.10, 1.0];
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/// Sentinel AABB that never rejects any snap query.
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pub const UNBOUNDED_AABB: [f32; 4] = [
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f32::NEG_INFINITY,
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f32::NEG_INFINITY,
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f32::INFINITY,
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f32::INFINITY,
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];
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/// Double-single split: `high + low ≈ v` to ~f64 precision in two f32s.
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/// Matches the renderer's relative-to-eye reconstruction.
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#[inline]
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pub fn split_ds(v: f64) -> (f32, f32) {
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let high = v as f32;
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(high, (v - high as f64) as f32)
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}
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/// Create a solid preview wire from f64 points, filling the double-single
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/// `points_low` buffer so the line stays precise at UTM-scale coordinates.
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/// Rubber-band previews built straight from f32 absolute points jitter
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/// ~0.5 m at UTM because the wire pass is relative-to-eye and expects the
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/// low residual; this keeps the preview glued to the cursor.
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pub fn solid_f64(name: String, points: Vec<[f64; 3]>, color: [f32; 4], selected: bool) -> Self {
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let mut hi = Vec::with_capacity(points.len());
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let mut lo = Vec::with_capacity(points.len());
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for [x, y, z] in points {
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let (hx, lx) = Self::split_ds(x);
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let (hy, ly) = Self::split_ds(y);
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let (hz, lz) = Self::split_ds(z);
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hi.push([hx, hy, hz]);
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lo.push([lx, ly, lz]);
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}
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let mut w = Self::solid(name, hi, color, selected);
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w.points_low = lo;
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w
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}
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/// Create a solid wire (no dash pattern, 1px weight).
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pub fn solid(name: String, points: Vec<[f32; 3]>, color: [f32; 4], selected: bool) -> Self {
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Self {
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bg_adapt: None,
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point_marker: None,
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taper_widths: Vec::new(),
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pattern_stations: Vec::new(),
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world_width: 0.0,
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depth_override: None,
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display_visible: true,
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plot_visible: true,
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fill_is_3d: false,
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fill_is_2d_solid: false,
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render_instance: None,
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pick_tris: Vec::new(),
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pick_tris_low: Vec::new(),
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text_verts: Vec::new(),
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name,
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points,
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points_low: Vec::new(),
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color,
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selected,
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aci: 0,
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pattern_length: 0.0,
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pattern: [0.0; 8],
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line_weight_px: 1.0,
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snap_pts: vec![],
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tangent_geoms: vec![],
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key_vertices: vec![],
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aabb: Self::UNBOUNDED_AABB,
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plinegen: true,
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dash_from_start: false,
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dash_align_end: None,
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fill_tris: vec![],
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fill_tris_low: Vec::new(),
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}
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}
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/// Return a clone with every point translated by `delta`.
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pub fn translated(&self, delta: glam::Vec3) -> Self {
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let mut out = self.clone();
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out.name = format!("preview_{}", self.name);
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out.color = Self::CYAN;
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out.selected = false;
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map_points(&mut out.points, &mut out.points_low, |point| {
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point + delta.as_dvec3()
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});
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if let Some(marker) = &mut out.point_marker {
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marker.origin += delta.as_dvec3();
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}
|
|
if !out.text_verts.is_empty() {
|
|
let (dx, dy, dz) = (delta.x as f64, delta.y as f64, delta.z as f64);
|
|
out.text_verts =
|
|
map_text_verts(&self.text_verts, |x, y, z| (x + dx, y + dy, z + dz));
|
|
}
|
|
out
|
|
}
|
|
|
|
/// Return a clone with every point rotated around `center` by `angle_rad`.
|
|
pub fn rotated(&self, center: glam::Vec3, angle_rad: f32) -> Self {
|
|
self.rotated_about_axis(center, glam::Vec3::Z, angle_rad)
|
|
}
|
|
|
|
/// Return a clone rotated about an arbitrary world-space axis.
|
|
pub fn rotated_about_axis(
|
|
&self,
|
|
center: glam::Vec3,
|
|
axis: glam::Vec3,
|
|
angle_rad: f32,
|
|
) -> Self {
|
|
let rotation = glam::Quat::from_axis_angle(axis.normalize_or_zero(), angle_rad);
|
|
let (s, c) = angle_rad.sin_cos();
|
|
let mut out = self.clone();
|
|
out.name = format!("preview_{}", self.name);
|
|
out.color = Self::CYAN;
|
|
out.selected = false;
|
|
for p in &mut out.points {
|
|
let mapped = center + rotation * (glam::Vec3::from_array(*p) - center);
|
|
*p = mapped.to_array();
|
|
}
|
|
for p in &mut out.points_low {
|
|
*p = (rotation * glam::Vec3::from_array(*p)).to_array();
|
|
}
|
|
if let Some(marker) = &mut out.point_marker {
|
|
let center = center.as_dvec3();
|
|
let rotation = glam::DQuat::from_axis_angle(
|
|
axis.as_dvec3().normalize_or(glam::DVec3::Z),
|
|
angle_rad as f64,
|
|
);
|
|
marker.origin = center + rotation * (marker.origin - center);
|
|
marker.normal = (rotation * marker.normal).normalize_or(glam::DVec3::Z);
|
|
marker.axis_x = (rotation * marker.axis_x).normalize_or(glam::DVec3::X);
|
|
marker.axis_y = (rotation * marker.axis_y).normalize_or(glam::DVec3::Y);
|
|
}
|
|
if !out.text_verts.is_empty() {
|
|
let center = center.as_dvec3();
|
|
let axis = axis.as_dvec3().normalize_or_zero();
|
|
let (s, c) = (s as f64, c as f64);
|
|
out.text_verts = map_text_verts(&self.text_verts, |x, y, z| {
|
|
let v = glam::DVec3::new(x, y, z) - center;
|
|
let mapped = center
|
|
+ v * c
|
|
+ axis.cross(v) * s
|
|
+ axis * axis.dot(v) * (1.0 - c);
|
|
(mapped.x, mapped.y, mapped.z)
|
|
});
|
|
}
|
|
out
|
|
}
|
|
|
|
/// Return a clone with every point uniformly scaled from `center` by `factor`.
|
|
pub fn scaled(&self, center: glam::Vec3, factor: f32) -> Self {
|
|
let mut out = self.clone();
|
|
out.name = format!("preview_{}", self.name);
|
|
out.color = Self::CYAN;
|
|
out.selected = false;
|
|
if let Some(marker) = out.point_marker {
|
|
let center = center.as_dvec3();
|
|
let normal = marker.normal.normalize_or(glam::DVec3::Z);
|
|
let target_origin = center + (marker.origin - center) * factor as f64;
|
|
map_points(&mut out.points, &mut out.points_low, |point| {
|
|
let delta = point - marker.origin;
|
|
let axial = normal * delta.dot(normal);
|
|
target_origin + (delta - axial) + axial * factor as f64
|
|
});
|
|
if let Some(target) = &mut out.point_marker {
|
|
target.origin = target_origin;
|
|
}
|
|
} else {
|
|
let center = center.as_dvec3();
|
|
map_points(&mut out.points, &mut out.points_low, |point| {
|
|
center + (point - center) * factor as f64
|
|
});
|
|
}
|
|
if !out.text_verts.is_empty() {
|
|
let (cx, cy, cz) = (center.x as f64, center.y as f64, center.z as f64);
|
|
let f = factor as f64;
|
|
out.text_verts = map_text_verts(&self.text_verts, |x, y, z| {
|
|
(cx + (x - cx) * f, cy + (y - cy) * f, cz + (z - cz) * f)
|
|
});
|
|
}
|
|
out
|
|
}
|
|
|
|
/// Return a clone for a stretch preview: every point whose XY lies inside
|
|
/// the crossing window `[win_min, win_max]` is translated by `delta`; points
|
|
/// outside stay put. Exact for line/polyline vertices (the primary stretch
|
|
/// targets); curve tessellation points may deform where a window edge cuts
|
|
/// through them, matching the per-vertex nature of the operation.
|
|
pub fn stretched(
|
|
&self,
|
|
win_min: glam::Vec3,
|
|
win_max: glam::Vec3,
|
|
delta: glam::Vec3,
|
|
) -> Self {
|
|
self.stretched_windows(&[(win_min, win_max)], delta)
|
|
}
|
|
|
|
/// Return a clone for a multi-window STRETCH preview. A point moves exactly
|
|
/// once when it lies inside any of the crossing windows.
|
|
pub fn stretched_windows(
|
|
&self,
|
|
windows: &[(glam::Vec3, glam::Vec3)],
|
|
delta: glam::Vec3,
|
|
) -> Self {
|
|
let mut out = self.clone();
|
|
out.name = format!("preview_{}", self.name);
|
|
out.color = Self::CYAN;
|
|
out.selected = false;
|
|
|
|
let inside = |x: f32, y: f32| {
|
|
windows.iter().any(|(win_min, win_max)| {
|
|
x >= win_min.x
|
|
&& x <= win_max.x
|
|
&& y >= win_min.y
|
|
&& y <= win_max.y
|
|
})
|
|
};
|
|
|
|
if let Some(marker) = out.point_marker {
|
|
if inside(marker.origin.x as f32, marker.origin.y as f32) {
|
|
map_points(&mut out.points, &mut out.points_low, |point| {
|
|
point + delta.as_dvec3()
|
|
});
|
|
if let Some(target) = &mut out.point_marker {
|
|
target.origin += delta.as_dvec3();
|
|
}
|
|
}
|
|
} else {
|
|
for p in &mut out.points {
|
|
if inside(p[0], p[1]) {
|
|
p[0] += delta.x;
|
|
p[1] += delta.y;
|
|
p[2] += delta.z;
|
|
}
|
|
}
|
|
}
|
|
|
|
if !out.text_verts.is_empty() {
|
|
let (dx, dy, dz) =
|
|
(delta.x as f64, delta.y as f64, delta.z as f64);
|
|
|
|
out.text_verts = map_text_verts(&self.text_verts, |x, y, z| {
|
|
let inside = windows.iter().any(|(win_min, win_max)| {
|
|
x >= win_min.x as f64
|
|
&& x <= win_max.x as f64
|
|
&& y >= win_min.y as f64
|
|
&& y <= win_max.y as f64
|
|
});
|
|
|
|
if inside {
|
|
(x + dx, y + dy, z + dz)
|
|
} else {
|
|
(x, y, z)
|
|
}
|
|
});
|
|
}
|
|
|
|
out
|
|
}
|
|
|
|
/// Return a clone mirrored across the line through `p1`→`p2`.
|
|
pub fn mirrored(&self, p1: glam::Vec3, p2: glam::Vec3) -> Self {
|
|
self.mirrored_in_plane(p1, p2, glam::Vec3::Z)
|
|
}
|
|
|
|
/// Return a clone reflected through the plane containing the picked line
|
|
/// and the supplied working-plane normal.
|
|
pub fn mirrored_in_plane(
|
|
&self,
|
|
p1: glam::Vec3,
|
|
p2: glam::Vec3,
|
|
working_normal: glam::Vec3,
|
|
) -> Self {
|
|
let plane_normal = (p2 - p1)
|
|
.cross(working_normal.normalize_or_zero())
|
|
.normalize_or_zero();
|
|
let mut out = self.clone();
|
|
out.name = format!("preview_{}", self.name);
|
|
out.color = Self::CYAN;
|
|
out.selected = false;
|
|
if plane_normal.length_squared() < 1e-12 {
|
|
return out;
|
|
}
|
|
for p in &mut out.points {
|
|
let point = glam::Vec3::from_array(*p);
|
|
*p = (point - 2.0 * plane_normal.dot(point - p1) * plane_normal).to_array();
|
|
}
|
|
// World position is the double-single sum `points + points_low` (text /
|
|
// UTM wires split it), so the residual must reflect too — as a direction
|
|
// (linear reflection about the axis, no `p1` offset).
|
|
for p in &mut out.points_low {
|
|
let point = glam::Vec3::from_array(*p);
|
|
*p = (point - 2.0 * plane_normal.dot(point) * plane_normal).to_array();
|
|
}
|
|
if let Some(marker) = &mut out.point_marker {
|
|
let p1 = p1.as_dvec3();
|
|
let normal = plane_normal.as_dvec3();
|
|
marker.origin -= 2.0 * normal.dot(marker.origin - p1) * normal;
|
|
marker.normal =
|
|
(marker.normal - 2.0 * normal.dot(marker.normal) * normal)
|
|
.normalize_or(glam::DVec3::Z);
|
|
marker.axis_x =
|
|
(marker.axis_x - 2.0 * normal.dot(marker.axis_x) * normal)
|
|
.normalize_or(glam::DVec3::X);
|
|
marker.axis_y =
|
|
(marker.axis_y - 2.0 * normal.dot(marker.axis_y) * normal)
|
|
.normalize_or(glam::DVec3::Y);
|
|
}
|
|
// Glyph quads reflect wholesale (true mirror) — the caller only routes
|
|
// text through here for MIRRTEXT-on; MIRRTEXT-off relocates via
|
|
// `translated` so glyphs stay readable.
|
|
if !out.text_verts.is_empty() {
|
|
let p1 = p1.as_dvec3();
|
|
let normal = plane_normal.as_dvec3();
|
|
out.text_verts = map_text_verts(&self.text_verts, |x, y, z| {
|
|
let point = glam::DVec3::new(x, y, z);
|
|
let mapped = point - 2.0 * normal.dot(point - p1) * normal;
|
|
(mapped.x, mapped.y, mapped.z)
|
|
});
|
|
}
|
|
out
|
|
}
|
|
|
|
/// Total arc-length of this wire (sum of segment lengths).
|
|
#[allow(dead_code)]
|
|
pub fn length(&self) -> f32 {
|
|
self.points
|
|
.windows(2)
|
|
.map(|w| {
|
|
let dx = w[1][0] - w[0][0];
|
|
let dy = w[1][1] - w[0][1];
|
|
let dz = w[1][2] - w[0][2];
|
|
(dx * dx + dy * dy + dz * dz).sqrt()
|
|
})
|
|
.sum()
|
|
}
|
|
|
|
pub fn point_world(&self, index: usize, view_height: f64) -> glam::DVec3 {
|
|
let high = self.points[index];
|
|
let low = self.points_low.get(index).copied().unwrap_or([0.0; 3]);
|
|
let point = glam::DVec3::new(
|
|
high[0] as f64 + low[0] as f64,
|
|
high[1] as f64 + low[1] as f64,
|
|
high[2] as f64 + low[2] as f64,
|
|
);
|
|
self.point_marker
|
|
.map_or(point, |marker| marker.resolve(point, view_height))
|
|
}
|
|
}
|
|
|
|
fn map_points(
|
|
points: &mut [[f32; 3]],
|
|
points_low: &mut Vec<[f32; 3]>,
|
|
map: impl Fn(glam::DVec3) -> glam::DVec3,
|
|
) {
|
|
let old_low = std::mem::take(points_low);
|
|
points_low.reserve(points.len());
|
|
for (index, high) in points.iter_mut().enumerate() {
|
|
if !high[0].is_finite() || !high[1].is_finite() || !high[2].is_finite() {
|
|
points_low.push([0.0; 3]);
|
|
continue;
|
|
}
|
|
let low = old_low.get(index).copied().unwrap_or([0.0; 3]);
|
|
let mapped = map(glam::DVec3::new(
|
|
high[0] as f64 + low[0] as f64,
|
|
high[1] as f64 + low[1] as f64,
|
|
high[2] as f64 + low[2] as f64,
|
|
));
|
|
let (hx, lx) = WireModel::split_ds(mapped.x);
|
|
let (hy, ly) = WireModel::split_ds(mapped.y);
|
|
let (hz, lz) = WireModel::split_ds(mapped.z);
|
|
*high = [hx, hy, hz];
|
|
points_low.push([lx, ly, lz]);
|
|
}
|
|
}
|
|
|
|
/// Map every glyph vertex's double-single world position through `f`, re-
|
|
/// splitting the result. The preview transforms above move `points`, but SDF
|
|
/// glyph quads live in `text_verts` (absolute-world double-single) — so a text
|
|
/// ghost (MOVE / COPY / ROTATE / SCALE / STRETCH / MIRROR preview) must carry
|
|
/// these along or the dragged text renders frozen at its source (issue #316).
|
|
/// Paper-space viewport projection uses it for the same reason (issue #385).
|
|
pub(crate) fn map_text_verts(
|
|
verts: &[crate::scene::pipeline::text_gpu::TextVertex],
|
|
f: impl Fn(f64, f64, f64) -> (f64, f64, f64),
|
|
) -> Vec<crate::scene::pipeline::text_gpu::TextVertex> {
|
|
use crate::scene::pipeline::text_gpu::split_ds;
|
|
verts
|
|
.iter()
|
|
.map(|v| {
|
|
let (nx, ny, nz) = f(
|
|
v.pos[0] as f64 + v.pos_low[0] as f64,
|
|
v.pos[1] as f64 + v.pos_low[1] as f64,
|
|
v.pos[2] as f64 + v.pos_low[2] as f64,
|
|
);
|
|
let (xh, xl) = split_ds(nx);
|
|
let (yh, yl) = split_ds(ny);
|
|
let (zh, zl) = split_ds(nz);
|
|
crate::scene::pipeline::text_gpu::TextVertex {
|
|
pos: [xh, yh, zh],
|
|
pos_low: [xl, yl, zl],
|
|
..*v
|
|
}
|
|
})
|
|
.collect()
|
|
}
|
|
|
|
impl Default for WireModel {
|
|
fn default() -> Self {
|
|
Self {
|
|
point_marker: None,
|
|
text_verts: Vec::new(),
|
|
name: String::new(),
|
|
points: Vec::new(),
|
|
points_low: Vec::new(),
|
|
color: Self::WHITE,
|
|
bg_adapt: None,
|
|
selected: false,
|
|
pattern_length: 0.0,
|
|
pattern: [0.0; 8],
|
|
line_weight_px: 1.0,
|
|
world_width: 0.0,
|
|
taper_widths: Vec::new(),
|
|
pattern_stations: Vec::new(),
|
|
aci: 0,
|
|
snap_pts: Vec::new(),
|
|
tangent_geoms: Vec::new(),
|
|
key_vertices: Vec::new(),
|
|
aabb: Self::UNBOUNDED_AABB,
|
|
plinegen: true,
|
|
dash_from_start: false,
|
|
dash_align_end: None,
|
|
fill_tris: Vec::new(),
|
|
fill_tris_low: Vec::new(),
|
|
depth_override: None,
|
|
display_visible: true,
|
|
plot_visible: true,
|
|
fill_is_3d: false,
|
|
fill_is_2d_solid: false,
|
|
render_instance: None,
|
|
pick_tris: Vec::new(),
|
|
pick_tris_low: Vec::new(),
|
|
}
|
|
}
|
|
}
|