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Annotation of pmsdk/samples/edpline/readme, revision 1.1.1.1

1.1       root        1: Comments about EDPLINE (Edit Polyline)
                      2: 
                      3: 
                      4: This program is a prototype for the standard mouse interface of
                      5: dragging points around and rubberbanding primitives.
                      6: 
                      7: 
                      8: To use:
                      9: -------
                     10: 
                     11: To add or move points, click on the LEFT mouse button.
                     12: 
                     13:   If you click within about 3 pels of an existing point, you can drag it
                     14:     around in the usual way.
                     15: 
                     16:   If you click within about 3 pels of an existing line, but not near a
                     17:     point, you will insert a point between the endpoints of the nearest line
                     18:     segment.
                     19: 
                     20:   Otherwise, you will append a control point to the list.
                     21: 
                     22: 
                     23: To remove points, click on a point with the RIGHT mouse button.
                     24: 
                     25:   You can drag the point around, but it will disappear as
                     26:   soon as you lift up on the mouse button.
                     27: 
                     28: 
                     29: The primitives can be displayed independently, and show up in different
                     30: colors so they can be distinguished (especially near endpoints).  Selecting
                     31: "None" clears all the selected primitives.
                     32: 
                     33: Rubberbanding is done by drawing in xor mode, so for each movement
                     34: you will draw the object twice.  When moving, adding, or removing control
                     35: points, only the one currently selected will be drawn.
                     36: 
                     37: There's a limit of 20 control points.  If you try to add more than that,
                     38: a message box appears. There's a bug that forces you to click twice after
                     39: closing down the error message box before you can grab a point for moving
                     40: or removing.

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