# File rbSnack/tkSnackUtil.rb, line 182
    def drawHorzLabels 
      return if @labelSteps==nil or @labelSteps.type!=Array or @labelSteps[0]<=0
      step=@labelSteps[0]
      wx=0
      while wx <= @worldFrame[2]
        if @worldFrame[0]<=wx
          x= getX wx
          txt=wx.to_s
          TkcText.new(self,x,@viewPort[3]+15){text txt}   
          TkcLine.new(self,x,@viewPort[1] ,x,@viewPort[3]){ fill '#ccf'}
        end
        wx+=step
      end
    end