Edit a Signal

Signals can be edited by changing the values in the sample point table or by performing a drag-and-drop operation inside the view. A sample point is a specific signal value at a specific time. The space in between two sample points is interpolated in the Signal Viewer.

Click Show/hide sample points for signals in the Signal Viewer window to display the sample points of a signal. For further information, see Signal Viewer.

Select a signal by clicking on it. In the legend, the selected signal name is set between two asterisks. Only one signal can be selected at a time.

Sample points of a signal

As long as signals are locked in the Signal Viewer you cannot apply changes to the signals. Click Lock signal edit to unlock signals for editing. Select sample points of the selected signal and perform a drag-and-drop operation.

Changes made to a signal can be reset by clicking File | Reload in the Signal Viewer or press Ctrl+R. All made changes in the Signal Viewer will be reset.

To add a new sample point, double-click on a point of the signal. A red rectangle shows a new sample point. Drag the red rectangle to a new position. To change a value of a sample point, click Show a table with all samples of the signal .

Sample point table toolbar

Only signals with primitive data types can be shown in the sample point table.

The toolbar contains the following elements:

	Add a new sample point.
	Remove a selected sample point
	Import from Excel file...
	Import directly from Microsoft Excel; To synchronize the values shown in the table with the values shown in the currently opened Excel file. The changes will be shown even if you have not saved the Excel file before.
	Export directly to Microsoft Excel; To export all values to an Excel file. If a document is currently open in Excel, TPT exports directly into the selected worksheet. Existing cell contents may be overwritten.

Double-click in the Time or Value field and enter a new value. The Time value must be unique. You can import or export the sample point table as a XLS or XLSX file by using the icons , , or .

If a document is currently open in MS Excel, TPT exports directly into the selected worksheet. Existing cell contents may be overwritten.

Resampling

Resampling synchronizes irregular or differently sampled signals with a new sampling time. The signals could come from external sources, for example imported signals from INCA. The method of resampling is sample and hold. The value of a sample point is held until the next sample point is reached (zero order hold).

Click Lock signal edit to unlock signals for editing. Click Edit | Resample in the Signal Viewer.

Enter a step size for the regular signal

Gaussian sample dragging

You can select several sample points of a signal inside a panel and drag the selected sample points to another place inside the panel.

Click Lock signal edit to unlock signals for editing. Select Gaussian sample dragging to move all selected sample points according to the Gaussian normal distribution. That is, the samples that are close to the dragged sample will move more than the samples that are far away. Deselect Gaussian sample dragging to move all selected sample points evenly.

Gaussian sample dragging (1) or moved sample points evenly (2)