public void Rotate_ZAxis()
        {
            var famSym  = FamilyType.ByName("Box");
            var pt      = Point.ByCoordinates(0, 1, 2);
            var famInst = FamilyInstance.ByPoint(famSym, pt);

            Assert.NotNull(famInst);

            var transform = famInst.InternalFamilyInstance.GetTransform();

            double[] rotationAngles;
            TransformUtils.ExtractEularAnglesFromTransform(transform, out rotationAngles);
            Assert.AreEqual(0.0, rotationAngles[0]);

            RevitServices.Persistence.DocumentManager.Instance.CurrentDBDocument.Regenerate();

            famInst.SetRotation(30);
            transform = famInst.InternalFamilyInstance.GetTransform();
            TransformUtils.ExtractEularAnglesFromTransform(transform, out rotationAngles);
            Assert.AreEqual(30.0, rotationAngles[0] * 180 / Math.PI, 1.0e-6);

            famInst.SetRotation(60);
            transform = famInst.InternalFamilyInstance.GetTransform();
            TransformUtils.ExtractEularAnglesFromTransform(transform, out rotationAngles);
            Assert.AreEqual(60.0, rotationAngles[0] * 180 / Math.PI, 1.0e-6);
        }
        public void FacingOrientation()
        {
            var famSym  = FamilyType.ByName("Box");
            var pt      = Point.ByCoordinates(0, 1, 2);
            var famInst = FamilyInstance.ByPoint(famSym, pt);

            Assert.NotNull(famInst);

            var dir = famInst.FacingOrientation;

            dir.IsAlmostEqualTo(Vector.ByCoordinates(0.0, 0.0, 1.0));
        }
        public void ByCoordinates_ProducesValidFamilyInstanceWithCorrectLocation()
        {
            var famSym  = FamilyType.ByName("Box");
            var famInst = FamilyInstance.ByCoordinates(famSym, 0, 1, 2);

            Assert.NotNull(famInst);

            var position = famInst.Location;

            position.ShouldBeApproximately(Point.ByCoordinates(0, 1, 2));

            // no unit conversion
            var internalPos =
                InternalLocation(famInst.InternalElement as Autodesk.Revit.DB.FamilyInstance);

            (internalPos * UnitConverter.HostToDynamoFactor(UnitType.UT_Length)).ShouldBeApproximately(
                Point.ByCoordinates(0, 1, 2));
        }
        public void ByPoint_NullPoint()
        {
            var famSym = FamilyType.ByName("Box");

            Assert.Throws(typeof(System.ArgumentNullException), () => FamilyInstance.ByPoint(famSym, null));
        }