Trait DynamicBackend

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pub trait DynamicBackend: CsgBackend {
    const SKETCH_IS_CSG: bool = false;
Show 13 methods
    // Required methods
    fn cube(size: [f64; 3]) -> Self::CsgType;
    fn sphere(radius: f64, segments: usize, stacks: usize) -> Self::CsgType;
    fn cylinder(radius: f64, height: f64, segments: usize) -> Self::CsgType;
    fn cone(radius: f64, height: f64, segments: usize) -> Self::CsgType;
    fn circle(radius: f64, segments: usize) -> Self::SketchType;
    fn square(size: [f64; 2]) -> Self::SketchType;
    fn polygon(points: &[[f64; 2]]) -> Self::SketchType;
    fn sketch(loops: &[Vec<DVec2>]) -> Self::SketchType;

    // Provided methods
    fn offset(
        sketch: Self::SketchType,
        _delta: f64,
        _round: bool,
        _chamfer: bool,
        _segments: usize,
    ) -> Self::SketchType { ... }
    fn sketch_as_csg(_sketch: Self::SketchType) -> Self::CsgType { ... }
    fn csg_as_sketch(_csg: Self::CsgType) -> Self::SketchType { ... }
    fn union_all(items: Vec<Self::CsgType>) -> Self::CsgType { ... }
    fn union_all_2d(items: Vec<Self::SketchType>) -> Self::SketchType { ... }
}

Expand description

A CsgBackend that can build every DynamicObject primitive.

Provided Associated Constants§

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const SKETCH_IS_CSG: bool = false

true when the backend uses one type for 2D and 3D (BSP): bare 2D nodes keep their geometry in 3D context and vice versa, via the two bridge hooks. When false (Manifold), out-of-context nodes are empty and the hooks are never called.

Required Methods§

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fn cube(size: [f64; 3]) -> Self::CsgType

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fn sphere(radius: f64, segments: usize, stacks: usize) -> Self::CsgType

stacks is advisory; backends with a single tessellation knob ignore it.

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fn sketch(loops: &[Vec<DVec2>]) -> Self::SketchType

Build a profile from winding-normalized loops (CCW outers, CW holes) as produced by rscad_core::sketch::profile_loops.

Provided Methods§

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fn offset( sketch: Self::SketchType, _delta: f64, _round: bool, _chamfer: bool, _segments: usize, ) -> Self::SketchType

2D polygon offset (offset(delta=…) / offset(r=…)). Default passes the profile through unchanged — for backends without polygon offsetting (BSP, the documented 2D outlier). round wins over chamfer.

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