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use anyhow::{format_err, Error};
use crate::v7400::{
data::mesh::{layer::LayerHandle, ControlPoints, PolygonVertices, RawPolygonVertices},
object::{deformer, geometry::GeometryHandle, model, TypedObjectHandle},
};
define_object_subtype! {
MeshHandle: GeometryHandle
}
impl<'a> MeshHandle<'a> {
pub fn models(&self) -> impl Iterator<Item = model::MeshHandle<'a>> {
self.destination_objects()
.filter(|obj| obj.label().is_none())
.filter_map(|obj| obj.object_handle())
.filter_map(|obj| match obj.get_typed() {
TypedObjectHandle::Model(model::TypedModelHandle::Mesh(o)) => Some(o),
_ => None,
})
}
pub fn skins(&self) -> impl Iterator<Item = deformer::SkinHandle<'a>> {
self.source_objects()
.filter(|obj| obj.label().is_none())
.filter_map(|obj| obj.object_handle())
.filter_map(|obj| match obj.get_typed() {
TypedObjectHandle::Deformer(deformer::TypedDeformerHandle::Skin(o)) => Some(o),
_ => None,
})
}
pub fn blendshapes(&self) -> impl Iterator<Item = deformer::BlendShapeHandle<'a>> {
self.source_objects()
.filter(|obj| obj.label().is_none())
.filter_map(|obj| obj.object_handle())
.filter_map(|obj| match obj.get_typed() {
TypedObjectHandle::Deformer(deformer::TypedDeformerHandle::BlendShape(o)) => {
Some(o)
}
_ => None,
})
}
pub(crate) fn control_points(&self) -> Result<ControlPoints<'a>, Error> {
self.node()
.children_by_name("Vertices")
.next()
.ok_or_else(|| format_err!("`Vertices` child node not found for geometry mesh"))?
.attributes()
.get(0)
.ok_or_else(|| format_err!("`Vertices` node has no attributes"))?
.get_arr_f64_or_type()
.map(ControlPoints::new)
.map_err(|ty| {
format_err!(
"`Vertices` has wrong type attribute: expected `[f64]` but got {:?}`",
ty
)
})
}
pub(crate) fn raw_polygon_vertices(&self) -> Result<RawPolygonVertices<'a>, Error> {
self.node()
.children_by_name("PolygonVertexIndex")
.next()
.ok_or_else(|| {
format_err!("`PolygonVertexIndex` child node not found for geometry mesh")
})?
.attributes()
.get(0)
.ok_or_else(|| format_err!("`PolygonVertexIndex` node has no attributes"))?
.get_arr_i32_or_type()
.map(RawPolygonVertices::new)
.map_err(|ty| {
format_err!(
"`PolygonVertexIndex` has wrong type attribute: expected `[i32]` but got {:?}`",
ty
)
})
}
pub fn polygon_vertices(&self) -> Result<PolygonVertices<'a>, Error> {
let control_points = self.control_points()?;
let raw_polygon_vertices = self.raw_polygon_vertices()?;
Ok(PolygonVertices::new(control_points, raw_polygon_vertices))
}
pub fn layers(&self) -> impl Iterator<Item = LayerHandle<'a>> {
self.node().children_by_name("Layer").map(LayerHandle::new)
}
}