Many customers have requested charts with multiple axes beyond the four frame-linked axes provided by the compound display. Axis classes — SRGScaleBar, SRGIndexBar, SRGGroupBar, SRGDateBar, and SRGLogBar — provide this capability. These axis scale classes are used like other components. They can be created and added to the component list of SRGraph. SRGScaleBar is derived from SRGDecimalScale, and it serves as the parent class of the other classes.

Figure 138 shows a chart using axis scale components.