Perl/Tk Pocket Reference

4. The Canvas Widget 13

Canvas Search Specifications

above => tagOrId

Selects the item just after the one given by tagOrId in the

display list.

all

Selects all the items in the canvas.

below => tagOrId

Selects the item just before the one given by tagOrId in

the display list.

closest => x, y ?, halo ??, start ?

Selects the topmost, closest item to @x,y that is below

start in the display list. Any item closer than halo to the

point is considered to overlap it.

enclosed => x1, y1, x2, y2

Selects all the items completely enclosed within x1, y1,

x2, y2.

overlapping => x1, y1, x2, y2

Selects all the items that overlap or are enclosed within

x1, y1, x2, y2.

withtag => tagOrId

Selects all the items given by tagOrId.

Canvas Item Types

$canvas->createArc(x1, y1, x2, y2 ?, -option => value ... ?);

-extent => degrees

Size of the angular range occupied by arc.

-outlinestipple => bitmap

Bitmap stipple to use to draw arc’s outline.

-fill => color -tags => tagList

-outline => color -width => outlineWidth

-

stipple => bitmap

14 Perl/Tk Pocket Reference

-start => degrees

Starting angle measured from 3-o’clock position.

-style => pieslice| chord| arc

How to “complete” the region of the arc.

$canvas->createBitmap(x, y ?, -option => value ... ?);

$canvas->createImage(x, y ?, -option => value ... ?);

$canvas->createLine(x1, y1, ... xN, yN ...