code: function setLinearTickPositions() {
  
  			var i,
  				roundedMin = correctFloat(mathFloor(min / tickInterval) * tickInterval),
  				roundedMax = correctFloat(mathCeil(max / tickInterval) * tickInterval);
  
  			tickPositions = [];
  
  			// populate the intermediate values
  			i = correctFloat(roundedMin);
  			while (i <= roundedMax) {
  				tickPositions.push(i);
  				i = correctFloat(i + tickInterval);
  			}
  
  		}
docs: Set the tick positions of a linear axis to round values like whole tens or every five.