canvas::gradient - Canvas with a gradient background

::canvas::gradientpathName ?options?...
              Creates a background gradient on the canvas pathName.  An existing gradient is replaced by the new
              definition.

              The set of available options is decribed below, in section Options.

   OPTIONS-directiondirection
              The  value  for  this option specifies the direction of the gradient.  If not specified the system
              defaults to x, a horizontal gradient.  The package supports five directions:

              x      for a horizontal gradient (default).  Color changes along the x-axis, with the start  color
                     at the left.

              y      for a vertical gradient.  Color changes along the y-axis, with the start color at the top.

              d1     for  a  diagonal gradient from left+top to bottom+right.  Color changes along the diagonal.
                     with the start color at left+top.

              d2     for a diagonal gradient from left+bottom to top+right.  Color changes along  the  diagonal.
                     with the start color at left+bottom.

              r      for  a  radial  gradient  around  the  center of the viewport Color changes from the center
                     outward, with the start color at the center.

       -color1color
              The value for this option specifies the starting color of  the  gradient.   If  not  specified  it
              defaults to red.

       -color2color
              The  value  for  this  option  specifies  the  ending  color of the gradient.  If not specified it
              defaults to green.

       -typetype
              The value for this option specifies  how  the  gradient  is  calculated.   The  package  currently
              supports on ly one method, which is the default, naturally:

              linear for linear interpolation between the start and end colors (default).

       This  document,  and  the package it describes, will undoubtedly contain bugs and other problems.  Please
       report such in the category canvas of the TklibTrackers  [http://core.tcl.tk/tklib/reportlist].   Please
       also report any ideas for enhancements you may have for either package and/or documentation.

       Copyright (c) 2013 Jarek Lewandowski, MaxJarek
       Copyright (c) Origin http://wiki.tcl.tk/6100
       Copyright (c) Origin http://wiki.tcl.tk/37242
       Copyright (c) Origin http://wiki.tcl.tk/9079

tklib                                                  0.2                                 canvas::gradient(3tk)

       This package provides a command to set background gradients on canvases.

       NOTE! This package reserves the canvas tag canvas::gradient for its use.

                package require canvas::gradient
                canvas .c
                canvas::gradient .c -direction x -color1 yellow -color2 blue
                pack .c -fill both -expand 1

       background, canvas, color gradient, gradients, image, widget background

       canvas::gradient - Canvas with a gradient background

       package require Tcl8.5

       package require Tk8.5

       package require canvas::gradient?0.2?::canvas::gradientpathName ?options?...

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