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.IX Title "Image::ExifTool::Plot 3"
.TH Image::ExifTool::Plot 3 2026-04-07 "perl v5.42.1" "User Contributed Perl Documentation"
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.SH NAME
Image::ExifTool::Plot \- Plot tag values in SVG format
.SH DESCRIPTION
.IX Header "DESCRIPTION"
Output plots in SVG format based on  ExifTool tag information.
.SH METHODS
.IX Header "METHODS"
.SS new
.IX Subsection "new"
Create a new Plot object.
.PP
.Vb 1
\&    $plot = Image::ExifTool::Plot\->new;
.Ve
.SS Settings
.IX Subsection "Settings"
Change plot settings.
.IP Inputs: 4
.IX Item "Inputs:"
0) Plot object reference
.Sp
1) Comma\-delimited string of options
.IP Options: 4
.IX Item "Options:"
.Vb 10
\&  "Type=Line"           \- plot type (Line, Scatter or Histogram)
\&  "Style=Line"          \- data style (Line, Marker and/or Fill)
\&  "NBins=20"            \- number of bins for histogram plot
\&  "Size=800 600"        \- width,height of output image
\&  "Margin=60 15 15 30"  \- left,top,right,bottom margins around plot area
\&  "Legend=0 0"          \- x,y offset to shift plot legend
\&  "TxtPad=10 10"        \- padding between text and x,y scale
\&  "LineSpacing=20"      \- spacing between text lines
\&  "Stroke=1"            \- plot stroke width and marker\-size scaling factor
\&  Title, XLabel, YLabel \- plot title and x/y axis labels (no default)
\&  XMin, XMax            \- x axis minimum/maximum (autoscaling if not set)
\&  YMin, YMax            \- y axis minimum/maximum
\&  Multi                 \- number of columns when drawing multiple plots,
\&                          followed optional number of datasets for each
\&                          plot (1 by default) using any separator
\&  Split                 \- flag to split strings of numbers into lists
\&                          (> 1 to split into lists of N items)
\&  "Grid=darkgray"       \- grid color
\&  "Text=black"          \- color of text and plot border
\&  "Bkg="                \- background color (default is transparent)
\&  "Cols=red green blue black orange gray fuchsia brown turquoise gold"
\&                        \- colors for plot data
\&  "Marks=circle square triangle diamond star plus pentagon left down right"
\&                        \- marker\-shape names for each dataset
.Ve
.SS AddPoints
.IX Subsection "AddPoints"
Add points to be plotted.
.IP Inputs: 4
.IX Item "Inputs:"
0) Plot object reference
.Sp
1) Tag information hash reference from ExifTool
.Sp
2) List of tag keys to plot
.SS Draw
.IX Subsection "Draw"
Draw the SVG plot to the specified output file.
.IP Inputs: 4
.IX Item "Inputs:"
0) Plot object reference
.Sp
1) Output file reference
.IP Notes: 4
.IX Item "Notes:"
On return, the Plot Error and Warn members contain error or warning strings
if there were any problems.  If an Error is set, then the output SVG is
invalid.
.SH AUTHOR
.IX Header "AUTHOR"
Copyright 2003\-2026, Phil Harvey (philharvey66 at gmail.com)
.PP
This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
.IP <https://exiftool.org/plot.html> 4
.IX Item "<https://exiftool.org/plot.html>"