Displaying 1 result from an estimated 1 matches for "gnuplot_command".
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gnuplot_commands
2010 Apr 29
2
send_data => invalid byte sequence in US-ASCII
...running gnuplot through a pipe to generate a plot in .png format.
(I''ve tested the code by writing its output to a file and displaying it
-- it works.) My Report model receives the .png image as a string:
class Report << ActiveRecord::Base
def imagedata
image = GnuPlot(@gnuplot_commands)
end
end
My Controller uses send_data() to serve up a page:
class ReportsController < ApplicationController
def plot
report = Report.find(params[:id])
send_data(report.imagedata, :type => ''image/gif'')
end
end
[FWIW, without really understand...