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PDL::Graphics::PGPLOT::Window 2.3.2

  Date Added: April 03, 2010  |  Visits: 856


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PDL::Graphics::PGPLOT::Window is a OO interface to PGPLOT windows. SYNOPSIS perldl> use PDL::Graphics::PGPLOT::Window perldl> $win = PDL::Graphics::PGPLOT::Window->new(Device => /xs); perldl> $a = pdl [1..100] perldl> $b = sqrt($a) perldl> $win->line($b) perldl> $win->hold() perldl> $c = sin($a/10)*2 + 4 perldl> $win->line($c) In the following documentation the commands are not shown in their OO versions. This is for historical reasons and should not cause too much trouble. This package offers a OO interface to the PGPLOT plotting package. This is intended to replace the traditional interface in PDL::Graphics::PGPLOT and contains interfaces to a large number of PGPLOT routines. Below the usage examples for each function tend to be given in the non-OO version for historical reasons. This will slowly be changed, but in the meantime refer to the section on OO-interface below to see how to convert the usage information below to OO usage (it is totally trivial). PDL::Graphics::PGPLOT::Window is an interface to the PGPLOT graphical libraries. The list of currently availably methods: imag - Display an image (uses pgimag()/pggray() as appropriate) ctab - Load an image colour table ctab_info - Get information about currently loaded colour table line - Plot vector as connected points points - Plot vector as points errb - Plot error bars cont - Display image as contour map bin - Plot vector as histogram (e.g. bin(hist($data)) ) hi2d - Plot image as 2d histogram (not very good IMHO...) poly - Draw a polygon vect - Display 2 images as a vector field text - Write text in the plot area label_axes - Print axis titles legend - Create a legend with different texts, linestyles etc. cursor - Interactively read cursor positions. circle - Draw a circle ellipse - Draw an ellipse. Device manipulation commands: new - Constructor for a new PGPLOT output device close - Close a PGPLOT output device focus - Set focus to the given device. This should normally be done behind the scenes. hold - Hold current plot window range - allows overlays etc. release - Release back to autoscaling of new plot window for each command held - Returns true if the graphics is held on the current device. env - Define a plot window, put on hold panel - Move to a specified plot panel when several panels are defined. erase - Erase the current window (or panel) options - Get the options set for the present output device id - The ID for the device device - The device type name - The window name Notes: $transform for image/cont etc. is used in the same way as the TR() array in the underlying PGPLOT FORTRAN routine but is, fortunately, zero-offset. The transform() routine can be used to create this piddle. For completeness: The transformation array connect the pixel index to a world coordinate such that: X = tr[0] + tr[1]*i + tr[2]*j Y = tr[3] + tr[4]*i + tr[5]*j.

Requirements: No special requirements
Platforms: Linux
Keyword: Device Interface Libraries Oo Pdl Pdlgraphicspgplotwindow Pgplot Plot Programming Tr Window
Users rating: 0/10

License: Freeware Size: 1.1 MB
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