Normalized

[ikeough]

BACKGROUND:
During discussion of of the impact of the changes to curve parameterization in 2.0, @wynged said that it would ease the transition for existing code that uses PointAt, if we could have replacement methods like PointAtNormalized.

DESCRIPTION:

• Adds PointAtNormalized and TransformAtNormalized.

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This change is 

[wynged]

Reviewed 5 of 5 files at r1, all commit messages.
Reviewable status: 1 change requests, 0 of 1 approvals obtained (waiting on @ikeough)

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Elements/src/Geometry/BoundedCurve.cs line 127 at r1 (raw file):

        /// positive Z axis points along the curve.
        /// </summary>
        /// <param name="u">The transform at a parameter along the curve between 0.0 and 1.0.</param>

I think the argument is not a transform ,it just is the parameter. similar to above.

[wynged]

Reviewed 2 of 3 files at r2.
Reviewable status: complete! 1 of 1 approvals obtained (waiting on @ikeough)

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Elements/test/ArcTests.cs line 322 at r2 (raw file):

            // The start, end, and mid points are the same, but we also want to ensure
            // that the curve didn't flip directions as well. We do this by testing
            // another random parameter. 

if start and end are correct how could it have become flipped?

[ikeough]

A polyline where the start and the end are the same would have matching end points, but could still be wound in the opposite direction.