equal_axes

The command set view equal xy forces the unit length of the x and y axes to be on the same scale, and chooses that scale so that the plot will fit on the page. The command set view equal xyz additionally sets the z axis scale to match the x and y axes; however there is no guarantee that the z axis range will fit within the plot boundary. See also set isotropic. By default all three axes are scaled independently to fill the available area.

See also set xyplane.