Maptitude GISDK Help

Identifying Maps, Layers, and Selection Sets

GISDK functions that change layer styles accept several types of strings that identify the map, layer, and selection set to be modified. These strings use a vertical bar to separate the different parts of the string. Any of the following is acceptable:

 

Syntax... What it means...
mapname|layername|setname Modify the style of features in the named map, layer, and selection set
layername|setname Modify the style of features in the named layer and selection set in the current map
setname Modify the style of features in the named selection set for the current layer in the current map
layername| Modify the style of features in the named layer in the current map
null Modify the style of features in the current layer in the current map

 

A similar set of options is available for setting the style of a theme class. The following are acceptable:

 

Syntax... What it means...
layername|themename|class_id Modify the style of features in the named layer, theme and class
themename|class_id Modify the style of features in the named theme and class on the current layer

 

Some display characteristics affect an entire layer and cannot be used on individual selection sets. For example, SetLayerVisibility() determines whether a layer is drawn in a map or not. For layer-wide display GISDK functions, you specify the map and layer you are changing in one of three ways:

 

Syntax... What it means...
mapname|layername Modify the named layer in the named map
layername Modify the named layer in the current map
null Modify the current layer in the current map

 

 

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