Purpose
Returns information about a specific dot density thematic layer in a map. You can call this function from the MapBasic window in MapInfo Pro.
Syntax
DotDensityThemeInfo ( map_window_id, thematic_layer_id, attribute )map_window_id is a Map window identifier.
thematic_layer_id is a SmallInt that identifies a dot density thematic layer in a Map.
attribute is a SmallInt code indicating the type of information to return; see table below.
Return Value
Depends on the attribute parameter.
Description
Theattribute parameter can be any value from the table below.
| Attribute code | ID | DotDensityThemeInfo() returns |
|---|---|---|
| DOTDENSITYTHEME_INFO_CONCE | 1 | Float result, representing a numeric value associated with each dot in a dot density map. |
| DOTDENSITYTHEME_INFO_SQUARE | 2 | Logical result (T or F) T if dots are square. F if they are circle. |
| DOTDENSITYTHEME_INFO_SIZE | 3 | Integer result, representing the size, in pixels, of each dot on a dot density theme. |
| DOTDENSITYTHEME_INFO_COLOR | 4 | Integer result, representing the RGB value for the color of the dots in a dot density theme. |