The maps can be customized in their appearance.

For this there are parameters such as type, color, saturation, luminosity ... Which can be defined in the master of map styles.

The nuances, saturation and luminosity model.

In the maps with styles, the nuance, saturation and luminosity (HSL) model is used to indicate color within the operations of style parameters. These operations to define color are common in graphic design. Hue indicates the basic color, saturation indicates the intensity of that color, and lightness indicates the relative amount of white or black in the constituent color.

While hue supports a HTML hexadecimal color value, it only uses that value to determine the basic color, not its saturation or brightness, which are indicated separately.

RGB hue values consisting of equal parts of red, green and blue, such as "# 000000 (black) and" #FFFFFF "(white) and all pure gray shades, do not indicate a hue, since none of those values indicate an orientation in the HSL coordinate space. To indicate black, white or gray, you must completely eliminate saturation (add the value -100) and adjust lightness.

In addition, by modifying existing features that already have a color scheme, changing a value as hue does not change its existing saturation or lightness.

All the documentation on the style of maps Here

Online style editor Here

The SQL statement that contains the center of the map is defined in the main box

The center of the map can be a point or a set of points depending on the content of the layers.

Normally the sentence that determines the center, will be very similar to the one contained in the series to center the map in the same place where points are being placed.

Here are some examples of sentences to center the map.

<select>
    <columns>
        'POINT(' || REPLACE(customer.gps_lon,',','.') || ' ' || REPLACE(customer.gps_lat, ',','.') || ')' zone
    </columns>
    <from table='customer' />
    <where>
        customer.customerid = '#customerid' 
    </where>
</select>

More information about the geometric module in Informix here...

<select>
    <columns>		
		<geo.asWkt>
        	<geo.aggrMbr>
	        	<geo.point2D>
           			<coords>'||gps_lon||'  '|| gps_lat||'</coords>
           			<srid>4</srid>
        		</geo.point2D> 	                	
           	</geo.aggrMbr> 
        </geo.asWkt>
    </columns>
    <from table='customer' />
    <where>
        customer.customerid = '#customerid' 
    </where>
</select>

The layers can contain a link to address an object, in the condition you can use the columns of the SQL statement of the layer.

This link appears when clicking on the icon on the map.