Purpose
Returns information about a specific theme range for a range thematic layer in a map. You can call this function from the MapBasic window in MapInfo Pro.
Syntax
RangeThemeItemInfo ( map_window_id, thematic_layer_id, range_item_id, attribute )map_window_id is a Map window identifier.
thematic_layer_id is a SmallInt that identifies a range thematic layer in a Map.
range_item_id is an Integer that identifies a theme range.
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 | RangeThemeItemInfo() returns |
|---|---|---|
| RANGETHEME_ITEM_INFO_LINE | 1 | Line style clause used for displaying objects that belong to the specified Range ID. If the theme is not a line based theme, a default line style is returned: Pen (1, 2, color) where color is the foreground color of the predominant geometry (regions or points) range style. |
| RANGETHEME_ITEM_INFO_PEN | 2 | Pen style clause used for displaying border of objects that belong to the specified Range ID. If the theme is not a region based theme, a default pen is returned: Pen(1, 2, 0). |
| RANGETHEME_ITEM_INFO_BRUSH | 3 | Brush style clause used for displaying objects that belong to the specified Range ID. If the theme is not a region based theme, a default brush will be returned using the color of the predominant geometry (lines or points) range style. |
| RANGETHEME_ITEM_INFO_SYMBOL | 4 | Symbol style clause used for displaying objects that belong to the specified Range ID. If the theme is not a point based theme, a default style will be returned using the color of the predominant geometry (regions or lines) range style. |
| RANGETHEME_ITEM_INFO_FROM | 5 | Value (Small Integer or Integer or Float or Time or Date or Datetime, etc.) is returned representing the minimum value for the specified Range ID. |
| RANGETHEME_ITEM_INFO_TO | 6 | Value (Small Integer or Integer or Float or Time or Date or Datetime, etc.) is returned representing the maximum value for the specified Range ID. |
See Also: