A caveat: drawing and selecting in 3D is at times tricky. Sometimes it is best to be in the main overhead view.
The user interface consists of 3 tabs. The first allows for the user to set the drawing mode:
Note: The drawing control will only respond to events (e.g., mouse drag to draw) when its window is being show. For example, if it is not visible in the dashboard tab then no drawing will take place.
The distance and area of a shape will be shown when it is being drawn, in the Shapes list
and in the shape properties. You can change the distance unit through the
Edit->Change Display Unit... menu.
There are three editing modes, select, move and reshape:
A caveat: Some objects can only be selected by clicking on or near certain points. Rectangles and diamonds click near the upper left or lower right. For text click near the beginning of the text string for left justified text, near the center for center justified text or near the end for right justified text.
This checkbox allows you to disable/enable drawing. For example, if you wanted to manipulate other elements in the display (e.g., probe point, cross section, other drawing controls), you can disable the drawing control so that it does not respond to any mouse events in the main display.
The shape buttons allow you to create:
Full Lat/Lonbutton controls how the corners of the image are positioned.
The drawing control allows you to draw in four different coordinate systems:
Full Lat/Lonis not fully implemented.
Allows you to define what is the fixed Z position.
If you have the
Draw in current time checkbox turned on then the graphic shapes that
that you are drawing will only be shown in the current animation time
in the 3D view. This facility allows you to, for example, annotate features
through time by drawing on the feature, stepping the time animation, and then
drawing in the next time.
To see all of the objects irrespective of their display times select the
Show all checkbox.
A graphic can be shown in more than one times using the property editor. Select the object and
press Control-P to bring up the property editor.
Select the times to be displayed in in the
Times list (Shift-click or Control-click to
select multiples) and press
These widgets allow you to define the color, line width, font, and text justification.
There is a "Remove All" entry in the edit menu that removes all graphic objects from the display.
Under the file menu you can choose to export the objects in the drawing control. This creates a simple xml file (a .xgrf file suffix) that defines the objects and that can be re-imported.