Class: CTioga2::PostProcess
- Inherits:
-
Object
- Object
- CTioga2::PostProcess
- Includes:
- Log
- Defined in:
- lib/ctioga2/postprocess.rb
Overview
What happens to generated PDF files ?
todo
-
handle movie generation ? That would be fun !
Instance Attribute Summary collapse
-
#eps ⇒ Object
Are we converting to EPS using pdftops ?.
-
#png_oversampling ⇒ Object
PNG oversampling: how many pixels are rendered for one target linear pixel (take that squared for the real number).
-
#png_pdftoppm ⇒ Object
If on, we use pdftoppm rather than imagemagick (gs, used by pdftoppm is much slower than pdftoppm).
-
#png_res ⇒ Object
PNG resolution.
-
#png_scale ⇒ Object
PNG scale: how many pixels for one postscript point ?.
-
#processed_files ⇒ Object
All files processed so far..
-
#svg ⇒ Object
Are we converting to SVG using pdf2svg ?.
-
#view_all ⇒ Object
View all produced files – or only the last one ?.
-
#viewer ⇒ Object
The viewer command.
Instance Method Summary collapse
-
#initialize ⇒ PostProcess
constructor
Settings up default postprocessing.
-
#process_file(file, last = false) ⇒ Object
Process the given file.
-
#view_pdf(pdf) ⇒ Object
Try to open the file with xpdf, or fallback to system defaults.
Methods included from Log
context, debug, error, fatal, #format_exception, #identify, info, init_logger, log_to, logger, set_level, #spawn, warn
Constructor Details
#initialize ⇒ PostProcess
Settings up default postprocessing
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# File 'lib/ctioga2/postprocess.rb', line 64 def initialize @view_all = false @viewer = false @svg = false @png_res = nil @png_oversampling = 2 @png_scale = 1 @png_pdftoppm = false @processed_files = [] end |
Instance Attribute Details
#eps ⇒ Object
Are we converting to EPS using pdftops ?
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# File 'lib/ctioga2/postprocess.rb', line 44 def eps @eps end |
#png_oversampling ⇒ Object
PNG oversampling: how many pixels are rendered for one target linear pixel (take that squared for the real number).
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# File 'lib/ctioga2/postprocess.rb', line 58 def png_oversampling @png_oversampling end |
#png_pdftoppm ⇒ Object
If on, we use pdftoppm rather than imagemagick (gs, used by pdftoppm is much slower than pdftoppm)
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# File 'lib/ctioga2/postprocess.rb', line 51 def png_pdftoppm @png_pdftoppm end |
#png_res ⇒ Object
PNG resolution
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# File 'lib/ctioga2/postprocess.rb', line 54 def png_res @png_res end |
#png_scale ⇒ Object
PNG scale: how many pixels for one postscript point ?
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# File 'lib/ctioga2/postprocess.rb', line 61 def png_scale @png_scale end |
#processed_files ⇒ Object
All files processed so far..
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# File 'lib/ctioga2/postprocess.rb', line 38 def processed_files @processed_files end |
#svg ⇒ Object
Are we converting to SVG using pdf2svg ?
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# File 'lib/ctioga2/postprocess.rb', line 41 def svg @svg end |
#view_all ⇒ Object
View all produced files – or only the last one ?
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# File 'lib/ctioga2/postprocess.rb', line 30 def view_all @view_all end |
#viewer ⇒ Object
The viewer command. If not nil, automatically spawn a viewer after the final figure, or for each produced file if view_all is on.
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# File 'lib/ctioga2/postprocess.rb', line 35 def viewer @viewer end |
Instance Method Details
#process_file(file, last = false) ⇒ Object
Process the given file. If last is true, things that should only happen last happen.
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# File 'lib/ctioga2/postprocess.rb', line 107 def process_file(file, last = false) @processed_files << file # Converts to SVG if applicable if @svg target = file.sub(/(\.pdf)?$/,'.svg') info { "Converting #{file} to SVG" } spawn("pdf2svg #{file} #{target}") end if @eps target = file.sub(/(\.pdf)?$/,'.eps') info { "Converting #{file} to EPS" } ## \todo provide some facility to pass options to pdftops ? spawn("pdftops -eps -level2 -paper match #{file} #{target}") end # Converts to PNG if applicable if @png_res tbase = file.sub(/(\.pdf)?$/,'') info { "Converting #{file} to PNG" } if @png_pdftoppm spawn "pdftoppm -singlefile -png -r #{(@png_scale * 72).to_i} #{file} #{tbase}" else spawn "convert -density #{(@png_oversampling * @png_scale * 72).to_i} #{file} -resize #{@png_res.join('x')} #{tbase}.png" end end # View produced PDF or PNG files... if (last || @view_all) && @viewer if @viewer == :auto view_pdf(file) else if @png_res cmd = "display #{target}" elsif @viewer =~ /%s/ cmd = @viewer % file else cmd = "#{@viewer} #{file}" end info { "Spawning the viewer as requested for #{file}" } spawn(cmd) end end end |
#view_pdf(pdf) ⇒ Object
Try to open the file with xpdf, or fallback to system defaults
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# File 'lib/ctioga2/postprocess.rb', line 79 def view_pdf(pdf) if Utils.which("xpdf") spawn(["xpdf", "-z", "page", pdf]) else case Utils.os when :windows # Use start spawn(["start", "/B", pdf]) when :macosx spawn(["open", pdf]) else for w in %w{evince gv mimeopen} if Utils.which(w) if w == "mimeopen" spawn(["mimeopen", "-n", pdf]) else spawn([w, pdf]) end break end end end end end |