VtChScaleType provides methods for plotting chart values and displaying the chart scale.
| Constant | Description |
| VtChScaleTypeLinear | Chart values are plotted in a linear scale with values ranging from the minimum to the maximum chart range value. |
| VtChScaleTypeLogarithmic | Chart values are plotted in a logarithmic scale with values based on a specific log scale set with the logBase argument of this function. |
| VtChScaleTypePercent | Chart values are plotted in a linear scale with values based on the percentages of the chart range values. |