Polygons
A polygon is a closed figure defined by a set of points. The main
advantage of using a polygon object versus building one from line objects is
that a polygon can be shaded in. Additionally the attributes of the
outline of the polygon can be changed as a whole instead of having to do it
individually for each side. Points and arrows, however, can
not be attached to the outline of a polygon. Many pre-made polygons are
available using a shape
object.
Create a Polygon
-
Select at least 3 points. To do this hold down the
key, click on
each point, and then release the
key.
The order of the point selection determines how the sides of the polygon are
drawn. A side will
automatically be drawn between the first selected and the last points
selected. -
Click on the Polygon button
on the toolbar.
Select a Polygon
-
Click on the polygon that you wish to select (polygon turns red when selected)
Note: To deselect a polygon click elsewhere on the figure editor screen.
Change Polygon Line Style
-
Select polygon
-
Place pointer over polygon and right-click. Select Line Style.
-
Click on the style you desire.
Change Polygon Line Width
-
Select polygon
-
Place pointer over polygon and right-click. Select Line Width.
-
Size dialog box appears. Move slider to change point size or type size number into textbox. Close Size dialog box.
Change Polygon Color
-
Select polygon
-
Place pointer over polygon and right-click. Select Color.
-
Color dialog box appears. Click on the color you desire. Click on Ok.
Shade in Polygon
-
Select polygon
-
Place pointer over polygon and right-click. Select Shading Style.
-
Select the shading style you desire.
Make Polygon Invisible
-
Select polygon
-
Place pointer over polygon and right-click. Select Visible.
-
To make polygon visible again, repeat previous two steps
Delete Polygon
-
Select polygon
-
Place pointer over polygon and right-click. Select Delete.