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Contents
module GoogleVisualr
module Image
# http://code.google.com/apis/chart/interactive/docs/gallery/imagebarchart.html
class BarChart < BaseChart
include GoogleVisualr::Packages::ImageChart
# For Configuration Options, please refer to:
# http://code.google.com/apis/chart/interactive/docs/gallery/imagebarchart.html
# Create URI for image bar chart. Override parameters by passing in a hash.
# (see http://code.google.com/apis/chart/image/docs/chart_params.html)
#
# Parameters:
# *params [Optional] Hash of url query parameters
def uri(params = {})
query_params = {}
# isStacked/isVertical, Chart Type
chart_type = "b"
chart_type += @options["isVertical"] ? "v" : "h"
chart_type += @options["isStacked"] == false ? "g" : "s"
query_params[:cht] = chart_type
# showCategoryLabels (works as long as :chxt => "x,y")
labels = ""
val_column = @options["isVertical"] ? 1 : 0
cat_column = @options["isVertical"] ? 0 : 1
if @options["showCategoryLabels"] == false
labels = "#{cat_column}:||"
else
labels = "#{cat_column}:|" + data_table.get_column(0).join('|') + "|"
end
# showValueLabels (works as long as :chxt => "x,y")
if @options["showValueLabels"] == false
labels += "#{val_column}:||"
end
query_params[:chxl] = labels unless labels.blank?
chart_image_url(query_params.merge(params))
end
end
end
end
Version data entries
14 entries across 14 versions & 2 rubygems