GraphClick Help > Contents

To show or hide the Geometry Info window, click on the corresponding icon in the window toolbar, or select Display > Show/Hide Geometry Info (⌥⌘I).

Geometry Info

The list in the geometry info window shows the data points of the selected data set, together with the following geometry information:

Length

Measures the total length of the segmented curve defined by the data points.

Distance

Measures the cummulated distance from the first point along the segmented curve.

Angle

Measures the turning angle of the curve at each point. Angles are given in degrees, measured counter clockwise (zero meaning a local straight line).

Speed

Computes the instantaneous speed of the trajectory at each point. The speeds are given in units per seconds and are only given when digitizing a movie.

Export the values

Click on the button Copy to copy the selected rows or columns (or all values if nothing is selected) into the clipboard.

You may also select File > Export Values (⌘E) or Edit > Copy Values with Settings (⌥⇧⌘C) and check the item Include Geometry Info.

Errors

The errors are computed for each values, based on the minimal precision entered in the Geometry Info window or on the individual error bars of each point.