text: # Copyright (c) 2010-2019 openpyxl
  
  """
  Read a chart
  """
  
  def read_chart(chartspace):
      cs = chartspace
      plot = cs.chart.plotArea
  
      chart = plot._charts[0]
      chart._charts = plot._charts
  
      chart.title = cs.chart.title
      chart.display_blanks = cs.chart.dispBlanksAs
      chart.visible_cells_only = cs.chart.plotVisOnly
      chart.layout = plot.layout
      chart.legend = cs.chart.legend
  
      # 3d attributes
      chart.floor = cs.chart.floor
      chart.sideWall = cs.chart.sideWall
      chart.backWall = cs.chart.backWall
      chart.pivotSource = cs.pivotSource
      chart.pivotFormats = cs.chart.pivotFmts
      chart.idx_base = min(s.idx for s in chart.series)
  
      return chart
  