I need to create a coordinate system on the vertex(call A) of a 3D curve(call B). The coordinate system's z axis should be along the tangent to B at A. The coordinate system's x axis should be perpendicular to the tangent of B at A. How this can be made.
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a brief explanation is given below
pnt0 is the point at the end of thecurve. i have created a datum pland(dtm1) at this point and normal to the curve. i have created an axis at this point and tangent to the curve. the axis direction is my z axis of the new coord sys i want to create. the other 2 axis of the coord also i need.