Hatch maps
use colors or patterns to show the distribution of different classes of
data. Hatch maps color code boundary objects based on the associated data
value. Data values are placed in classes defined by data ranges, and one
color or pattern is associated with each class. You can use color and
fill patterns to define classes for areas. For curves and symbols, colors
define the classes.
In a new plot window,
choose the Map | Create Map | Hatch
command 
. The Import
Boundary File dialog is displayed prompting you to select the boundary
file to use for the map.
See Creating and Editing Thematic Maps for more information on creating a hatch map, changing a hatch map to another map type, and changing map properties.
The hatch categories and properties can be set in the Property Manager. The Property Manager for a hatch map contains General, Map, Data Labels, and Info pages. Click the preceding hyperlinks for information on properties in each of the property manager pages.
The Map page in the Property Manager has properties unique to hatch maps.
Edit hatch map properties in the Map
page of the Property Manager.
Hatch maps group data values into classes. All boundaries in a single group use the same properties so it is easy to tell which boundaries are in the same data class on the map. Each group is assigned unique coloring or shading so you can tell the relative differences in data values by glancing at the map. You can have from one to 100 data classes on your map. The Classes group allows you to specify the classes.
Select By data or By text in the Binning method list to use numeric values or text for classification.
Click the 
button near Classes to change the class bin
properties in the Data
Classes or Text Classes
dialog.
The General group contains options for the display of the map hatching.
Area shows each area as the specified fill color and pattern, or it displays each point and polyline as the specified color.
Circle draws a circle in each polygon, on the polyline mid-line, or on the point and shades it as the specified fill color and pattern.
Square draws a square in each area, on the curve mid-line, or on the point and shades it as the specified fill color and pattern.
If you select Square, set the width of the square in the Width box. If you select Circle, set the circle diameter in the Diameter box.
See Also