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# File 'lib/rabbit/parser/ext/charty.rb', line 26
def make_image(path, prop, logger)
require "charty"
backend = prop["backend"]
::Charty::Backends.use(backend) if backend
data = CSV.read(path, headers: true, converters: :all)
type = prop["type"]
case type
when "bar"
plotter = ::Charty.bar_plot(data: data,
x: prop["x"],
y: prop["y"],
color: prop["color"])
when "line"
plotter = ::Charty.line_plot(data: data,
x: prop["x"],
y: prop["y"],
color: prop["color"])
when "scatter"
plotter = ::Charty.scatter_plot(data: data,
x: prop["x"],
y: prop["y"],
color: prop["color"])
else
raise ArgumentError, "charty: unsupported type: #{type.inspect}"
end
image_file = Tempfile.new(["rabbit-image-charty", ".svg"])
plotter.save(image_file.path)
image_file
end
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