NAME : tcanvas - an extension of the canvas widget
A Tiled-canvas is simply a canvas with an image item acting as background.
TCANVAS-SPECIFIC OPTIONS : -bgimage _image_ Specifies an image to display as background, which must have been created with the "image create" command. If _image_ is the empty string, the background is disabled -bgzoom _n_ _n_ is an integer value (default 1). With this option, each pixel in the source image will be expanded into a block of n x n pixels. -bgmargin _n_ _n_ is an integer value ( _n_ >= 0 ; default is 0). the background image will cover all the canvas visible surface, leaving a margin of _n_ pixels.
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