The modes of "Edit Spidery Mesh", "Edit Region", "Pan Camera", "Track Camera", "Dolly Camere" and "Zoom Camera" selected by the buttons in a toolbox provides the below features for mouse operations on the swatch window.
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This mode "Edit Spidery Mesh" is used for fitting a spidery mesh in your input image by your mouse operations on a swatch window.
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This mode "Edit Region" is for putting a region in your input image by your mouse operation on a swatch window.
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This mode "Pan Camera" is for panning a camera in an angle corresponding to a movement with your dragging mouse. So, the camera direction is rotated.
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This mode "Track Camera" is for tracking a camera in a distance corresponding to a movement with your dragging mouse. So, the camera position is shifted to right, left, up or down.
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This mode "Dolly Camera" is for dollying a camera in a depth corresponding to a movement with your dragging mouse. So, the camera position is moved ahead or back.
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This mode "Zoom Camera" is for zooming a camera in an angle corresponding to a movement with your dragging mouse. So, the focus length of the camera is changed.