merge

Merge remote branch 'upstream/visitor' into visitortests

Conflicts:
	src/export.cc
	src/openscad.cc
	src/polyset.cc
	src/transform.cc
	tests/CMakeLists.txt
	tests/FindGLEW.cmake
	tests/csgtermtest.cc

1 files changed, 35 insertions, 0 deletions

diff --git a/testdata/scad/features/minkowski3-tests.scad b/testdata/scad/features/minkowski3-tests.scad
new file mode 100644
index 0000000..0451b57
--- /dev/null
+++ b/testdata/scad/features/minkowski3-tests.scad
@@ -0,0 +1,35 @@
+module roundedBox3dSimple() {
+    minkowski() {
+        cube([10,10,5]);
+        cylinder(r=5, h=5);
+    }
+}
+
+module roundedBox3dCut() {
+    minkowski() {
+        difference() {
+            cube([10,10,5]);
+            cube([5,5,5]);
+        }
+        cylinder(r=5, h=5);
+    }
+}
+
+module roundedBox3dHole() {
+    minkowski() {
+        difference() {
+            cube([10,10,5], center=true);
+            cube([8,8,10], center=true);
+        }
+        cylinder(r=2);
+    }
+}
+
+translate([-20,30,0]) roundedBox3dHole();
+translate([0,25,0]) roundedBox3dCut();
+translate([25,25,0]) roundedBox3dSimple();
+
+// Empty
+minkowski();
+// No children
+minkowski() { }