# Changing Dimension (Coordinate Space Boundaries)

Coordinate space boundaries (or dimension) can be assigned to the editor window. The default coordinate space is the common Normalize device coordinates or (xlo=0, ylo=0, xhi=32767, yhi=32767). These dimensions determine an object's coordinate system when it is saved. The dimension should be set to match the world coordinate system used within the program. This ensures that the positions of shapes defined from the image editor will remain the same when they are displayed within that program. Use the "Layout/Dimension" to change the dimension the Image Editor.

If the "Allow icons to scale..." check box specifies the rule defining how the image is scaled when used in the application program. If this option is checked, the image will automatically be scaled according to the world coordinate system defined by the application program. If this option is not set, the shape will stay the same size no matter what world it is attached to.

To see the current location of the pointer with respect to the editor's dimension, toggle the "View/Coordinates" option. The pointer's (x,y) location will be displayed in the status bar at the lower right hand corner of the editor window.