Chart Viewer - Smooth / Modify Data

Navigation: Displaying and Manipulating Data (Charts) > New (LightningChart) Charts > Smooth/Modify Data

Smooth/Modify Data

Page Contents

Description

Navigation

Controls

Application Notes

•Recovering original data

Related Topics

Description

This feature offers an automated utility for data smoothing from within the chart viewer, allowing such operations as average window smoothing, median window smoothing, radial average smoothing, specified value, and floor/ceiling truncation.

This command available in the right mouse click pop-up menu brings up the Smooth Data dialog box. This dialog provides an environment where the data can be smoothed with various parameters and techniques and while the dialog is open, the data can be restored trivially.

Navigation

This feature is accessible by right mouse clicking on the active 3D chart view and selecting "Smooth/Modify Data".

Controls

Control	Inputs	Defaults
Smooth/Modify Operation
Average Window Smoothing	Sets the value of a pixel to the average of the user specified number of nearest neighbor pixels (specified by row, col). This is equivalent to a numerical convolution.	Default row = 1, col = 1
Median Window Smoothing	Sets the value of a pixel to the median of the user specified number of nearest neighbor pixels (specified by row, col). This maintains the slope whereas the Average Window Smoothing does not.	Not Selected row = 1, col = 1
Radial Average Smoothing	Perform a radial average by setting pixel values to the average of all the pixels at that radius.	Not Selected row, col at max value
Set to a specified value region	Reset data in the ranges specified by row, col to the value input by the user.	Not Selected row min/max = grid range col min/max = grid range
Truncate to floor/ceiling	Truncate the data in the range specified by row, col by the floor and ceiling values input by the user.	Not selected row min/max = grid range col min/max = grid range floor/ceiling = min/max data
Restore original data	Restore to the original dataset	Unchecked
Restore original data before performing the operation	If checked, this option will restore to the original dataset before applying the next smoothing operation.	Unchecked
Summary Information
Grid size: Row (X) and Col (Y)	Shows the full grid size.
Max value at: Row (X) and Col (Y)	Shows grid coordinates of the max value.

OK	Accept settings and close dialog box.
Cancel	Discard settings and close dialog box.
Apply	Apply settings and keep dialog box open.
Help	Access this Help page.

Application Notes

Restoring original data

In a LightningChart chart the original data is saved in it's own grid, and so can be recovered very simply even after the dialog is closed using the restore original data option. This is a key difference between LightningChart and Legacy Charts (which do not offer non-trivial data restoration).