Patent ID: 7843469

Claim:
A processor-performed method of overlaying overlay information onto a view for electronic display, a given type of the information having a range of possible intensity values, the method comprising: providing a chart selectively displayable on the electronic display at first and second magnification view scales, wherein the first and second magnification view scales differ in magnification from one another; associating a given intensity value of the given type of information with first and second display transparency levels based on variance of significance of the given intensity value over the differing magnification view scales; the first and second display transparency levels representing differing levels of opacity; for a geographical area represented in the chart, determining a plurality of differing intensity values for the given type of information; displaying two different determined intensity values of the given type of information as an overlay on the chart, with the two different intensity values being displayed at the same associated display transparency level, and with the chart and the two intensity values being displayed at the first magnification view scale; and displaying the two different determined intensity values of the given type of information at the second magnification scale, and at the first and second display transparency levels.