How does ’auto axis scaling’ work?
The scale of the axis is computed automatically if various scale components (i.e. min, max, step, unit) are not explicitly specified. Scaling of the axis occurs on-the-fly and is dependent on the following factors: A] The range (specifically min and max) of values in all series datasets associated with the given axis. B] The font (and angle of text rotation) that defines the axis label C] The format specifier associated with the axis label value that affects the presentation value (if not text) D] The actual presentation value of each axis label E] The length of the axis (longer axis lines may accommodate more axis labels) As an example, assuming that a series containing dataset (36, -4, 99, 26, 5.32, -104) are used. The min value = -105 and the max value = 99. This would result in a default scale where: The min = -110 The max = 100 The step = 10 The absolute difference between min and max = 210 For the given step, this would result in 210 / 10 = 21 axis labels Case I For the given axi