camva returns the cameraview angle setting in the current axes. The camera view angle determinesthe field of view of the camera. Larger angles produce a smaller viewof the scene. Implement zooming by changing the camera view angle.
Setting a camera view angle or setting the camera view angleto manual disables the MATLAB stretch-to-fillfeature (stretching of the axes to fit the window). This means settingthe camera view angle to its current value,camva(camva)cancause a change in the way the graph looks. See axes for more information.
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