Purpose
Returns information about a specific pie chart thematic layer in a map. You can call this function from the MapBasic window in MapInfo Pro.
Syntax
PieChartThemeInfo ( map_window_id, thematic_layer_id, attribute )map_window_id is a Map window identifier.
thematic_layer_id is a SmallInt that identifies a pie chart 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 | PieChartThemeInfo() returns |
|---|---|---|
| PIECHARTTHEME_INFO_GRADUATION | 1 | SmallInt result, representing how the differences in numerical values correspond to differences in pie diameter. Three methods are supported.PIECHARTTHEME_INFO_GRAD_ROOT(0) PIECHARTTHEME_INFO_GRAD_LOG(1) PIECHARTTHEME_INFO_GRAD_LOG(2) |
| PIECHARTTHEME_INFO_ORIENTATION | 2 | SmallInt result, representing relative position of the pie chart to the centroid of each object geometry. Nine orientation values are possible.PIECHARTTHEME_INFO_ORI_CC(0) Center Center. PIECHARTTHEME_INFO_ORI_TL(1) Top Left. PIECHARTTHEME_INFO_ORI_TC(2) Top Center. PIECHARTTHEME_INFO_ORI_TR(3) Top Right. PIECHARTTHEME_INFO_ORI_CL (4) Center Left. PIECHARTTHEME_INFO_ORI_CR(5) Center Right. PIECHARTTHEME_INFO_ORI_BL(6) Below Left. PIECHARTTHEME_INFO_ORI_BC(7) Below Center. PIECHARTTHEME_INFO_ORI_BR(8) Below Right. |
| PIECHARTTHEME_INFO_PEN | 3 | Pen clause for the pie chart border |
| PIECHARTTHEME_GRADUATED | 4 | Logical result (T or F) whether pie charts are graduated or not. |
| PIECHARTTHEME_HALF_PIE | 5 | Logical result (T or F) whether only half pie will be displayed or not (full pie). |
| PIECHARTTHEME_DIAMETER | 6 | Float result, representing numeric value that correspond to diameter of pie in paper unit. |
| PIECHARTTHEME_DIAMETER_UNIT | 7 | String result, representing the paper unit of the pie chart width. |
| PIECHARTTHEME_DIAMETER_VALUE | 8 | Float result, representing numeric value that correspond to the used pie chart diameter used in PIECHARTTHEME_DIAMETER |
| PIECHARTTHEME_START_ANGLE | 9 | Float result, representing numeric value that correspond to start angle of the pie in degree. |
| PIECHARTTHEME_CLOCKWISE | 10 | Logical result (T or F) whether the pie will be displayed clockwise or not from the start angle. |
See Also: