Adds planes.

src/render.jl

@@ -3,7 +3,7 @@ using Colors
 export mesh, box, sphere, pyramid, cylinder, torus, parametric, meshlines,
        material, camera, pointlight, spotlight, ambientlight, vertex, line,
        linematerial, geometry, face, dodecahedron, icosahedron, octahedron,
-       tetrahedron
+       tetrahedron, plane
 
 """
 Creates a Three-js mesh at position (`x`,`y`,`z`).
@@ -119,6 +119,18 @@ function tetrahedron(radius::Float64)
     )
 end
 
+"""
+Creates a plane in the XY plane with specified width and height centered
+around the origin.
+Should be put in a `mesh` along with another material Elem to render.
+"""
+function plane(width::Float64, height::Float64)
+    Elem(
+        :"three-js-plane",
+        attributes = @compat Dict(:w => width, :h => height)
+    )
+end
+
 """
 Creates a geometry.
 This should be a child of a `mesh`.

test/runtests.jl

@@ -72,7 +72,8 @@ facts("Testing Render Elem Outputs") do
             )
         @fact torus(12.0, 2.0) -->
             Elem(:"three-js-torus", attributes = @compat Dict(:r => 12.0, :tube => 2.0))
-
+        @fact plane(12.0, 2.0) -->
+            Elem(:"three-js-plane", attributes = @compat Dict(:w => 12.0, :h => 2.0))
         #colormap = Colors.colormap("RdBu")
         #zs = [0.0, 1.0, 2.0, 1.0, 2.0, 3.0, 2.0, 3.0, 4.0, 3.0, 4.0, 5.0]
         #colors = map(z -> "#"*hex(colormap[ceil(Int,(5-z)/5 * (100-1)+1)]), zs)