- arrow ->compute:
- Compute -left, -right and graphical
<-area
from the arrow<-tip, arrow<-reference, arrow<-length
and arrow<-wing
to speed up redraw.
- arrow ->geometry: x=[int],
y=[int], width=[int], height=[int]
- Ignores the width and height arguments. Compares the x and y with the
current graphical
<-area
and moves the a arrow by calling
arrow->points such the graphical<-area
will match the specified x and y.
- arrow ->initialise: length=[num],
wing=[num], style=[{open,closed}], fill=[colour]*
- Initialise an arrow
object.
length is the length from the arrow-head to the
back of the wing. wing is the distance between the two
wing-tips. A default arrow reads the following values from associated
class-variables:
- arrow ->reference_x: num
- Inherits description from: arrow
<-reference_x
- arrow ->reference_y: num
- Inherits description from: arrow
<-reference_x
