Struct ShapeBuilder

pub struct ShapeBuilder {
    pub default_color: [f32; 4],
    /* private fields */
}

Builds a shape using lyon for tesselation

Fields

default_color: [f32; 4]

This RGBA color is used when tesselating a path with no color data (Attributes in lyon terminology)

Implementations

impl ShapeBuilder

pub fn new(zdepth: f32, default_color: [f32; 4]) -> Self

Create a new ShapeBuilder with a given ZDepth

Arguments

• zdepth - The z depth for shapes in this builder to have

pub fn prepare(&self, renderer: &Renderer) -> Shape

Prepare and load this builder into the renderer.

This does not consume the builder, because wgpu copies the buffer rather than taking ownerhip.

pub fn fill( &mut self, path: &Path, options: &FillOptions, ) -> Result<(), TessellationError>

Fill an arbitrary path from lyon::path

pub fn stroke( &mut self, path: &Path, options: &StrokeOptions, ) -> Result<(), TessellationError>

Stroke an arbitrary path from lyon::path

Trait Implementations

impl Debug for ShapeBuilder

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ShapeBuilder

fn default() -> ShapeBuilder

Returns the “default value” for a type.

impl FillGeometryBuilder for ShapeBuilder

fn add_fill_vertex( &mut self, vertex: FillVertex<'_>, ) -> Result<VertexId, GeometryBuilderError>

Inserts a vertex, providing its position, and optionally a normal. Returns a vertex id that is only valid between begin_geometry and end_geometry.

impl GeometryBuilder for ShapeBuilder

fn begin_geometry(&mut self)

Called at the beginning of a generation.

fn end_geometry(&mut self)

Called at the end of a generation. Returns the number of vertices and indices added since the last time begin_geometry was called.

fn add_triangle(&mut self, a: VertexId, b: VertexId, c: VertexId)

Insert a triangle made of vertices that were added after the last call to begin_geometry.

fn abort_geometry(&mut self)

abort_geometry is called instead of end_geometry if an error occurred while producing the geometry and we won’t be able to finish.

impl StrokeGeometryBuilder for ShapeBuilder

fn add_stroke_vertex( &mut self, vertex: StrokeVertex<'_, '_>, ) -> Result<VertexId, GeometryBuilderError>

Inserts a vertex, providing its position, and optionally a normal. Returns a vertex id that is only valid between begin_geometry and end_geometry.