To magnify a photograph in a user specified area:
• Pick up the Zoom-Area tool from the toolbar (the square-dotted magnifying glass with a "+").
• Click and hold this tool on the ribbon toolbar’s Active Window Tab you wish to magnify.
• Drag the mouse until the desired rectangular area is shown.
• Release the mouse button.
PhotoModeler will magnify this photograph to best fit the chosen rectangle into the current window. This tool is not accessible when the 3D Viewer is active. If in this mode and a 3D Viewer becomes active, the mode will switch to a valid mode for 3D, such as Zoom In.