Modifying a Coordinate System

· To change the form of the grid, choose Polar Grid, Square Grid, or Rectangular Grid. The grid form determines whether the Coordinates command measures polar or rectangular coordinates and determines whether the command to plot measured values is Plot As (x, y) or Plot As (r, theta).

Depending on how the coordinate system was defined, some of the Grid Form commands may not be available.

· To hide or show the grid lines, choose Hide Grid or Show Grid.

· To change the appearance of the grid lines or dots, select the grid by clicking on a grid intersection, then choose Dotted, Thin, or Thick from the Line Width submenu.

· To change the color of the grid lines, select the grid by clicking on a grid intersection, then choose a color from the Color submenu.

· To make points snap to integer coordinate positions when dragged, choose Snap Points.