Rapid graphical analysis of waveforms using a pointing device

1. An electronic instrument comprising:

a display that displays a signal waveform, the signal waveform being from a signal detected by the electronic instrument and that displays a menu that shows a plurality of parameters for the displayed signal waveform;

a pointing device that allows a user to select locations on the display; and,

logic within the electronic instrument that allows selection of a parameter from the plurality of parameters and that adjusts values for the parameter selected from the plurality of parameters, adjustment being made based on locations on the display selected after selection of the parameter, wherein the locations are selected by the user using the pointing device.

2. An electronic instrument as in claim 1 wherein the pointing device is at least one of the following:

a mouse;

a trackball;

a touchpad;

a touchscreen;

cursor keys.

3. An electronic instrument as in claim 1 wherein the plurality of parameters includes at least one of the following:

start location;

stop location;

center location;

displayed span;

zoom in;

zoom out;

trace marker;

peak marker;

threshold level;

full span.

4. An electronic instrument as in claim 1 wherein the menu is a pull down menu that allows the user to select parameters.

5. An electronic instrument as in claim 1 wherein the menu is a pull down menu that allows the user to select parameters, the pull down menu, when closed, displaying the selected parameter.

6. An electronic device as in claim 1 wherein the logic adjusts values for the selected parameter of the displayed signal waveform as the user makes a dragging selection using the pointing device.

7. A method comprising:

displaying a signal waveform on a display, the signal waveform being from a signal detected by an electronic instrument;

displaying a menu that shows a plurality of parameters for the displayed signal waveform; and,

performing the following in response to a user selecting a parameter from the plurality of parameters and, after selecting the parameter, using a pointing device to select a location on the display:

adjusting values for the parameter selected from the plurality of parameters based on locations on the display selected by the user using the pointing device.

8. A method as in claim 7 wherein the pointing device is at least one of the following:

a mouse;

a trackball;

a touchpad;

a touchscreen;

cursor keys.

9. A method as in claim 7 wherein the plurality of parameters includes at least one of the following:

start location;

stop location;

center location;

displayed span;

zoom in;

zoom out;

trace marker;

peak marker;

threshold level;

full span.

10. A method as in claim 7 wherein the menu is a pull down menu.

11. A method as in claim 7 wherein the menu is a pull down menu, and wherein the selected parameter is displayed upon the pull down menu being closed.

12. A method as in claim 7 additionally comprising:

adjusting values for the selected parameter of the displayed signal waveform as the user makes a dragging selection using the pointing device.

13. Storage media for storing software which when run on a device that has computing capability performs a method comprising:

displaying a signal waveform on a display, the signal waveform being from a signal detected by an electronic instrument;

displaying a menu that shows a plurality of parameters for the displayed signal waveform; and,

performing the following in response to a user selecting a parameter from the plurality of parameters and, after selecting the parameter, using a pointing device to select a location on the display:

adjusting values for the parameter selected from the plurality of parameters based on locations on the display selected by the user using the pointing device.

14. Storage media as in claim 13 wherein the pointing device is at least one of the following:

a mouse;

a trackball;

a touchpad;

a touchscreen;

cursor keys.

15. Storage media as in claim 13 wherein the plurality of parameters includes at least one of the following:

start location;

stop location;

center location;

displayed span;

zoom in;

zoom out;

trace marker;

peak marker;

threshold level;

full span.

16. Storage media as in claim 13 wherein the method additionally comprises:

displaying a menu that lists possible selected parameters; and,

changing the selected parameter in response to a user selection.

17. Storage media as in claim 13 wherein the method additionally comprises:

adjusting values for the selected parameter of the displayed signal waveform as the user makes a dragging selection using the pointing device.