<\body> After insertion of a new picture or clicking inside an existing picture, the second mode dependent toolbar shows alist of icons which are useful in graphics mode. In particular, the second group of icons , , , , , , , , on this toolbar allows you to select the kind of objects that you want to insert. currently implements the following primitive graphical objects: <\description> When selecting point mode using or , you may insert simple points with the left mouse button. When selecting line mode using or , you may insert a new broken line with the left mouse button: at every new click a new point is inserted and the last point is inserted using a double click. Polygon mode ( or ) is a variant of line mode, with this difference that an additional segment is inserted between the first and the last points. Spline mode is selected using or . This mode is similar to line mode, except that we now draw a smooth curve through the specified points. Again, this mode admits a closed variant ( or ). Arc mode is selected using or . In this mode, you may insert arcs going through three points specified through left mouse clicks. Similarly, you may use circle mode ( or ) for drawing circles. When selecting text mode ( or ) or mathematics mode ( or ), you may enter text (or mathematics) at an arbitrary position in the picture, again using the left mouse button. Typical examples of these basic objects are shown in the figures below: <\center> >|gr-geometry||||>>|Points.>>||gr-frame|>|gr-geometry||||||>>>|Lines.>>||gr-frame|>|gr-geometry||||||>>>|Polygons.>>>>>> \; |gr-frame|>|gr-geometry||||||>>>|Splines.>>||gr-frame|>|gr-geometry||||||>>>|Closed splines.>>||gr-frame|>|gr-geometry||||>>>|Arcs.>>>>>> \; |gr-frame|>|gr-geometry||||>>>|Circles.>>||gr-frame|>|gr-geometry||>>>|Text.>>||gr-frame|>|gr-geometry||*\>=-1|>>>|Mathematics.>>>>>> <\initial> <\collection>