Each data value is a member of one or more segments. (All data values are members of the default 'All Segments' segment.) These segments are displayed on triangular graphs. The Triangular Segments Section contains two fields which manage the display of these curve segments and region segments.

1	Curve Segments Field: displays those segments which will be displayed as curves on the current graph.
2	Region Segments Field: displays those segments which will be displayed as regions on the current graph.

Clicking the left mouse button on the Curve Segments Field's data table activates the Curve Segments Dialog. See the dialog's documentation for details.

Clicking the right mouse button within the curve segments field's table control activates the field's commands menu.

The menu's commands enable you to copy, cut and paste values to and from the data control. See Common Menu Commands for documentation on the commands commonly found on command menus.

Clicking the left mouse button on the Region Segments Field's data table activates the Region Segments Dialog. See the dialog's documentation for details.

Clicking the right mouse button within the region segments field's table control activates the field's commands menu.

The menu's commands enable you to copy, cut and paste values to and from the data control. See Common Menu Commands for documentation on the commands commonly found on command menus.

1. Open a Graph document. (Open a "working" document or create a copy of a document (see here) if you are just experimenting with this functionality.)
2. Change to the Tri Graphs Chapter and create a new triangular graph. You can create a new triangular graph by pressing the Add toolbar button (the large plus sign), choosing the Add Page command from the Edit menu, or using the ctrl-a keyboard accelerator.
3. Click on the Identifier Pane's edit control and enter a name for your new graph.
4. Typically you should enter information about the graph in the Descriptive Information Section. We will skip this for this example.
5. Click and hold the left mouse button in the first cell in the table shown above. While holding the mouse button down, drag the mouse to the table's lower right corner. Then press the ctrl-c key combination to copy the values to clipboard.
6. Click the left mouse button on the Data Values Section's table control. The application activates the Data Dialog.
7. Click the left mouse button on the table control's first row. The row will become selected.
8. Click the right mouse button on the table control and select the Paste Special command.
9. The application activates the Paste Special Mapping dialog. The copied values will be displayed in the dialog's table control. Click the left mouse button in each column's heading and select the corresponding attribute.
10. Press the dialog's OK button. The values will be pasted into the Data Dialog.
11. Click and hold the left mouse button down on the table control's first row and drag the mouse downward to select the first three rows.
12. Press the dialog's Set Segs button. The application activates the Edit Data Segments dialog. Enter the value 'seg1' into one of the edit controls in the New Data Segments control group. Then press the dialog's OK button.
13. The new segment will be added to the first three data values.
14. Click and hold the left mouse button down on the table control's second row and drag the mouse downward to select the last three rows.
15. Press the dialog's Add Seg button. The application activates the Edit Data Segments dialog but with only one edit control enabled. Enter the value 'seg2' into the edit control. Then press the dialog's OK button.
16. The new segment will be added to the last three data values. Thus, the second and third data values will now have two segments assigned to them.
17. Finally, press the Data Dialog's Save button to store the entered values into the current graph document.
18. Now scroll down to the Triangular Segments section and click the left mouse button on the Curve Segments field's table control. The application activates the Curve Segments Edit Dialog.
19. Click the left mouse button on the table control's first row and press the dialog's Edit button. The application activates the Curve Segment Edit Dialog. Select the attribute values to match those in the figure below then press the dialog's OK button.
20. Click the left mouse button on the table control's second row and press the dialog's Edit button. The application activates the Curve Segment Edit Dialog. Select the attribute values to match those in the figure below then press the dialog's OK button.
21. Finally, press the Curve Segments Dialog's Save button to store the entered curve segments into the current graph document.
22. Now click the left mouse button on the Region Segments field's table control. The application activates the Region Segments Edit Dialog.
23. Click the left mouse button on the table control's first row and press the dialog's Edit button.

    The application activates the Region Segment Edit Dialog. Select the attribute values to match those in the figure to the right, then press the dialog's OK button.
24. Finally, press the Region Segments Dialog's Save button to store the entered region segment into the current graph document.
25. Scroll down to the Graph Section. The two curve segments and the one region segment will be displayed on the triangular graph.

Topic	Description
Triangular Graph Chapter	document chapter that displays and manages triangular data and graph entities.
Creating Graphs	discusses the procedure and several detailed examples of creating graphs of physical property values.