add MultiPoint meta

Author: SimonDanisch

src/GeometryBasics.jl

@@ -29,6 +29,7 @@ module GeometryBasics
     export OffsetInteger, ZeroIndex, OneIndex, GLIndex
     export FaceView, SimpleFaceView
     export AbstractPoint, PointMeta, PointWithUV
+    export PolygonMeta, MultiPointMeta
     export decompose, coordinates, faces, normals, decompose_uv, decompose_normals, texturecoordinates
     export Tesselation, pointmeta, Normal, UV, UVW
     export GLTriangleFace, GLNormalMesh3D, GLPlainTriangleMesh, GLUVMesh3D, GLUVNormalMesh3D

src/basic_types.jl

@@ -307,11 +307,17 @@ end
 Base.getindex(ms::MultiLineString, i) = ms.linestrings[i]
 Base.size(ms::MultiLineString) = size(ms.linestrings)
 
+
+"""
+    MultiPoint(points::AbstractVector{AbstractPoint})
+
+A collection of points
+"""
 struct MultiPoint{
         Dim, T <: Real,
-        Element <: AbstractPoint{Dim, T},
-        A <: AbstractVector{Element}
-    } <: AbstractVector{Element}
+        P <: AbstractPoint{Dim, T},
+        A <: AbstractVector{P}
+    } <: AbstractVector{P}
 
     points::A
 end

src/metadata.jl

@@ -137,3 +137,7 @@ Base.getindex(x::NgonFaceMeta, idx::Int) = getindex(metafree(x), idx)
 Base.getindex(x::SimplexFaceMeta, idx::Int) = getindex(metafree(x), idx)
 
 @meta_type(Polygon, polygon, AbstractPolygon, N, T)
+
+@meta_type(MultiPoint, points, AbstractVector, P)
+Base.getindex(x::MultiPointMeta, idx::Int) = getindex(metafree(x), idx)
+Base.size(x::MultiPointMeta) = size(metafree(x))