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Interpolate 2D Scattered (G Dataflow)

Version:
    Last Modified: January 9, 2017

    Performs two-dimensional interpolation on scattered points.

    This node accepts two independent variables and one dependent variable and returns interpolated values that correspond to each location of the independent variables.

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    method

    Interpolation method.

    Name Value Description
    nearest 0

    Performs interpolation on the nearest points (non-smooth). This method finds the point closest to (xi, yi) and assigns the corresponding value in Z to zi.

    linear 1

    Performs linear interpolation on the selected triangle (non-smooth). This method triangulates the convex hull of (X, Y) and interpolates zi for the points inside a triangle. (xi, yi) is valid only inside the convex hull of (X, Y). Otherwise, this node returns NaN.

    cubic 2

    Performs cubic interpolation on the selected triangle (smooth). This method triangulates the convex hull of (X, Y) and interpolates zi for the points inside a triangle. (xi, yi) is valid only inside the convex hull of (X, Y). Otherwise, this node returns NaN.

    biharmonic spline 3

    Performs biharmonic spline interpolation (smooth). This method calculates 2D biharmonic spline interpolation using Green's function.

    Default: linear

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    Z

    Value of the known points.

    X, Y, and Z must be the same size.

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    X

    X-coordinates of the known points.

    X, Y, and Z must be the same size.

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    Y

    Y-coordinates of the known points.

    X, Y, and Z must be the same size.

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    error in

    Error conditions that occur before this node runs. The node responds to this input according to standard error behavior.

    Default: No error

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    xi

    X-coordinates of the new points where the node computes interpolated values at zi.

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    yi

    Y-coordinates of the new points where interpolated values compute at yi. The size of yi must equal the size of xi.

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    zi

    Interpolated values of the new points that correspond to the xi and yi values.

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    error out

    Error information. The node produces this output according to standard error behavior.

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: Not supported


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