Class: CosSinCalc::Triangle::Formatter::Latex

Inherits:
Object
  • Object
show all
Defined in:
lib/cossincalc/triangle/formatter/latex.rb

Instance Method Summary collapse

Constructor Details

#initialize(formatter) ⇒ Latex

Initializes the LaTeX renderer.



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# File 'lib/cossincalc/triangle/formatter/latex.rb', line 6

def initialize(formatter)
  @formatter = formatter
  @triangle  = formatter.triangle
end

Instance Method Details

#document_content(image_filename = nil) ⇒ Object

Returns the content of the LaTeX document.



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# File 'lib/cossincalc/triangle/formatter/latex.rb', line 38

def document_content(image_filename = nil)
  variable_table + "\\\\[0.2 cm]\n\n" + equations + "\n\n" + drawing(image_filename)
end

#save_pdf(filename) ⇒ Object

Saves the generated LaTeX to a TeX file and then converts it using pdflatex. The filename should be provided without the .pdf extension.



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# File 'lib/cossincalc/triangle/formatter/latex.rb', line 32

def save_pdf(filename)
  save_tex(filename)
  Dir.cd_to(filename) { |basename| `pdflatex "#{basename}.tex"` }
end

#save_tex(filename) ⇒ Object

Saves the generated LaTeX to a TeX file. The filename should be provided without the .tex extension.



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# File 'lib/cossincalc/triangle/formatter/latex.rb', line 26

def save_tex(filename)
  File.open("#{filename}.tex", 'w') { |f| f.write(to_tex(filename)) }
end

#to_tex(filename = nil) ⇒ Object

Returns the generated LaTeX code.



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# File 'lib/cossincalc/triangle/formatter/latex.rb', line 12

def to_tex(filename = nil)
  document(@triangle.alt ? (<<-EOT) : document_content(filename))
#{document_content(filename ? filename + '-1' : nil)}

\\newpage
\\section*{Alternative triangle}
Another triangle can be constructed based on the variables given.\\\\[0.2 cm]

#{Latex.new(@triangle.alt.humanize(f.precision)).document_content(filename ? filename + '-2' : nil)}
EOT
end