To remove an
item (or more than one item) from the Canvas completely, use the
delete method. It takes a
list of tags or IDs to remove from the Canvas. It will delete all
matches it finds for the tag names, so be careful you aren't
deleting something you don't want to delete. Here is an example
that uses three separate tag/IDs:
$canvas->delete("blue", "circle", $id_num);
You can specify only one tag/ID or as many as you want.
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