interpolate_scattered_data_points_to_imageT_interpolate_scattered_data_points_to_imageInterpolateScatteredDataPointsToImageinterpolate_scattered_data_points_to_imageInterpolateScatteredDataPointsToImageInterpolateScatteredDataPointsToImage (Operator)

Name

interpolate_scattered_data_points_to_imageT_interpolate_scattered_data_points_to_imageInterpolateScatteredDataPointsToImageinterpolate_scattered_data_points_to_imageInterpolateScatteredDataPointsToImageInterpolateScatteredDataPointsToImage — Creating an image from the interpolation of scattered data.

Signature

Description

interpolate_scattered_data_points_to_imageinterpolate_scattered_data_points_to_imageInterpolateScatteredDataPointsToImageinterpolate_scattered_data_points_to_imageInterpolateScatteredDataPointsToImageInterpolateScatteredDataPointsToImage interpolates the data points, given in RowsRowsRowsRowsRowsrows and ColumnsColumnsColumnsColumnsColumnscolumns with the corresponding measurement ValuesValuesValuesValuesValuesvalues, and returns the result in ImageInterpolatedImageInterpolatedImageInterpolatedImageInterpolatedImageInterpolatedimageInterpolated. The size of the output image is defined by its WidthWidthWidthWidthWidthwidth and its HeightHeightHeightHeightHeightheight with the upper left corner at (0,0). In order to interpolate at negative coordinates of (RowsRowsRowsRowsRowsrows,ColumnsColumnsColumnsColumnsColumnscolumns), simply translate all input points accordingly. With the parameter MethodMethodMethodMethodMethodmethod the interpolation algorithm is specified. So far, only the 'thin_plate_splines'"thin_plate_splines""thin_plate_splines""thin_plate_splines""thin_plate_splines""thin_plate_splines" are supported. This method interpolates on a global scale, which means that all points are regarded for the interpolation, no matter how far away they are. The influence of far points is correlated to r^2*log(r) where r defines the distance of two points. In comparison to interpolate_scattered_data_imageinterpolate_scattered_data_imageInterpolateScatteredDataImageinterpolate_scattered_data_imageInterpolateScatteredDataImageInterpolateScatteredDataImage, interpolate_scattered_data_points_to_imageinterpolate_scattered_data_points_to_imageInterpolateScatteredDataPointsToImageinterpolate_scattered_data_points_to_imageInterpolateScatteredDataPointsToImageInterpolateScatteredDataPointsToImage also supports subpixel coordinates for RowsRowsRowsRowsRowsrows and ColumnsColumnsColumnsColumnsColumnscolumns. If the same data points (RowsRowsRowsRowsRowsrows,ColumnsColumnsColumnsColumnsColumnscolumns,ValuesValuesValuesValuesValuesvalues) are used for the interpolation of different output images in subsequent steps, the operator create_scattered_data_interpolatorcreate_scattered_data_interpolatorCreateScatteredDataInterpolatorcreate_scattered_data_interpolatorCreateScatteredDataInterpolatorCreateScatteredDataInterpolator may be more efficient.

The following parameters can be adjusted with GenParamNamesGenParamNamesGenParamNamesGenParamNamesGenParamNamesgenParamNames and GenParamValuesGenParamValuesGenParamValuesGenParamValuesGenParamValuesgenParamValues:

'alpha'"alpha""alpha""alpha""alpha""alpha":

The parameter 'alpha'"alpha""alpha""alpha""alpha""alpha" is a smoothing factor. For 'alpha'"alpha""alpha""alpha""alpha""alpha" = 0, all points passed in (RowsRowsRowsRowsRowsrows,ColumnsColumnsColumnsColumnsColumnscolumns,ValuesValuesValuesValuesValuesvalues) are interpolated exactly. With 'alpha'"alpha""alpha""alpha""alpha""alpha" getting larger, the interpolation smoothes the points in way that all interpolated points of the result image ImageInterpolatedImageInterpolatedImageInterpolatedImageInterpolatedImageInterpolatedimageInterpolated lie on a common plane. Default value is 0. Restrictions: 'alpha'"alpha""alpha""alpha""alpha""alpha" >= 0

Parallelization

• Multithreading type: exclusive (runs in parallel only with independent operators).
• Multithreading scope: global (may be called from any thread).
• Processed without parallelization.

Parameters

Result

If the parameters are valid, the operator interpolate_scattered_data_points_to_imageinterpolate_scattered_data_points_to_imageInterpolateScatteredDataPointsToImageinterpolate_scattered_data_points_to_imageInterpolateScatteredDataPointsToImageInterpolateScatteredDataPointsToImage returns the value 2 (H_MSG_TRUE). If necessary, an exception is raised.

Alternatives

interpolate_scattered_data_imageinterpolate_scattered_data_imageInterpolateScatteredDataImageinterpolate_scattered_data_imageInterpolateScatteredDataImageInterpolateScatteredDataImage

Module

Foundation