Contours

You can choose to see the contours as "boxes", following the grid cells, or you can smooth them by choosing "shading".

The "shading" option shows different layers in different colours. If you choose "no shading", you must choose "Draw isolines" to be able to see any­thing at all. The isolines are lines on which the value is the same. You can see this value by choosing "With labels".

Color legend

When you choose "Shading" or "Box contours", you can also plot the color legend. The color legend can be configured using the Palette wizard. You can create, open, edit and save a palette file. You can use the dialog to calculate the limits from the data file by pressing "calculate", or you can specify the lim­its yourself.

If you select ‘<New levels/colors...>", you can define a custom palette which is either "Auto scaled" or "Fixed". On the fixed palettes, you can specify the data value ranges.