Touch screen sonar adjustment systems and methods

A system comprising:

• a user interface comprising a touch screen display and configured to receive and/or display sonar data provided by a sonar system;
• and
• a logic device configured to communicate with the user interface and/or the sonar system, wherein the logic device is configured to:
• detect a pinch gesture performed on the touch screen display;
• determine a rate component and a sample scale component of the pinch gesture performed on the touch screen display, wherein the determined rate component controls, at least in part, a stimulus of the sonar system;
• adjust a rate and a sample scale factor for the touch screen display based, at least in part, on the determined rate and sample scale components;
• and
• render the sonar data according to the adjusted rate and sample scale factor;
• wherein the logic device is configured to provide the adjusted rate and/or the adjusted sample scale factor to the sonar system to adjust a stimulus rate and/or a sample density of the sonar system, wherein the stimulus rate comprises an ensonification or ping rate of the sonar system.

A method comprising:

• determining a rate component and a sample scale component of a pinch gesture performed on a touch screen display of a user interface, wherein the user interface is configured to receive and/or display sonar data provided by a sonar system, wherein the determined rate component controls, at least in part, a stimulus of the sonar system;
• adjusting a rate and a sample scale factor for the touch screen display based, at least in part, on the determined rate and sample scale components;
• and
• rendering the sonar data according to the adjusted rate and sample scale factor;
• wherein determining the rate component and/or the sample scale component comprises:
• detecting the pinch gesture performed on the touch screen display;
• estimating a reference angle and a travel distance corresponding to two points of contact associated with the detected pinch gesture;
• and
• determining the rate component and/or the sample scale component from the estimated reference angle and travel distance.