In Fry analysis data is assessed by placing a point object on a central point within a fixed reference frame. The position of all other occurrences relative to that point is marked. This procedure is then repeated for each point, and will result in a dot distribution pattern or Fry plot that displays the relative position of each point object to all other point objects viewed from a central position. If any regular patterns in terms of spacing and orientation of point objects exists, the Fry plot will enhance such patterns allowing an easy, visual assessment of the controlling trends.

The figures above provide an example of a Fry Plot. The figure on the left is a simplified geological map of the NW sector of the Zimbabwe craton. Known gold occurrences are marked as red dots. The gold occurrences positioned in the blue square have been used for the Fry plot shown on the right. The Fry plot helps to enhance linear trends along which deposits occur and clearly shows the characteristic spacing between deposit trends.

DotProc's Fry plot window looks as follows:

DotProc is optimized for large numbers of points to be displayed in the Fry plot. Thus when resizing Fry plot windows it is necessary to refresh its contents so that all available space is used. "Update" button is used for that.

While drawing Fry plot the status line indicates progress. Operation can be stopped by clicking on "Update/Stop" button or pressing "ESC" key on the keyboard.

Fry plot area can be zoomed by dragging a mouse selecting zoom rectangle.

When Fry plot window is active the status line indicates rectangular coordinates of the cursor together with the distance and angle from the centre point.

The data can be saved as geo-referenced data in tab delimited text files and exported to GIS software.

The following attributes of the Fry plot can be changed by selecting "Tools / Settings" menu item: