• Mesh Generator Problem

    Dear all,
    I have just started to learn this software. But when I was following the tutoral of mesh generation, importing a digitised shoreline data, the X-axis appeared like this(see the attached picture). The whole workspace is so narrow that it is inconvenient for me to edit polygons. I have tried all the methods myself, trying to expand the axis, but it doesn't work.   

    Thank you for any thoughts and suggestions.