treat float precision error, add isapprox for Rects

Author: ffreyer

src/primitives/rectangles.jl

@@ -505,9 +505,11 @@ end
 #
 # Equality
 #
-Base.:(==)(b1::Rect, b2::Rect) = minimum(b1) == minimum(b2) && widths(b1) == widths(b2)
+Base.:(==)(b1::Rect, b2::Rect) = origin(b1) == origin(b2) && widths(b1) == widths(b2)
 
-Base.isequal(b1::Rect, b2::Rect) = b1 == b2
+function Base.isapprox(r1::Rect, r2::Rect; kwargs...)
+    return isapprox(origin(r1), origin(r2); kwargs...) && isapprox(widths(r1), widths(r2); kwargs...)
+end
 
 ##
 # Rect2 decomposition

test/geometrytypes.jl

@@ -467,16 +467,16 @@ end
         #       go higher dimensions than that.
         M = rand(Mat4f)
         ps = Point2f[M * Point(p..., 1, 1) for p in coordinates(r)]
-        @test Rect2f(ps) == M * r
+        @test Rect2f(ps) ≈ M * r
 
         M = Mat2f(0.5, -0.3, 0.7, 1.5)
         ps = Point2f[M * p for p in coordinates(r)]
-        @test Rect2f(ps) == M * r
+        @test Rect2f(ps) ≈ M * r
 
         r = Rect3f(-1, -2, -3, 2, 4, 1)
         M = rand(Mat4f)
         ps = Point3f[M * Point(p..., 1) for p in coordinates(r)]
-        @test Rect3f(ps) == M * r
+        @test Rect3f(ps) ≈ M * r
     end
 
     # TODO: this is effectively 0-indexed... should it be?