1PLSTRANSFORM(3plplot)             PLplot API             PLSTRANSFORM(3plplot)
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NAME

6       plstransform - Set a global coordinate transform function
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SYNOPSIS

9       plstransform(coordinate_transform, coordinate_transform_data)
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DESCRIPTION

12       This  function  can be used to define a coordinate transformation which
13       affects all elements drawn within the current plot window.  The coordi‐
14       nate_transform  callback  function  is similar to that provided for the
15       plmap(3plplot)  and  plmeridians(3plplot)   functions.    The   coordi‐
16       nate_transform_data parameter may be used to pass extra data to coordi‐
17       nate_transform.
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19       Redacted  form:  General:  plstransform(coordinate_transform,   coordi‐
20       nate_transform_data)
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23       This function is used in examples 19 and 22.
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ARGUMENTS

26       coordinate_transform (PLTRANSFORM_callback(3plplot), input)
27              A callback function that defines the transformation from the in‐
28              put (x, y) world coordinates to new  PLplot  world  coordinates.
29              If coordinate_transform is not supplied (e.g., is set to NULL in
30              the C case), then no transform is applied.
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32       coordinate_transform_data (PLPointer(3plplot), input)
33              Optional extra data for coordinate_transform.
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AUTHORS

37       Many developers (who  are  credited  at  http://plplot.org/credits.php)
38       have contributed to PLplot over its long history.
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SEE ALSO

41       PLplot documentation at http://plplot.org/documentation.php.
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45                                 August, 2021            PLSTRANSFORM(3plplot)
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