"showShapesWildcard"
Shows shapes by wildcard.
Synopsis
void showShapesWildcard( string strLayer, string strField, string strVarValue,
double dMinRange, double dMaxRange, bool bVisible);
Parameters
| Parameter | Description |
|---|---|
| strLayer | The layer whose shapes should be displayed |
| strField | The name of the shape field. The 'strVarValue' will be compared to the value of this specified field. |
| strVarValue | The shape meaning the 'strVarValue' will be compared to the value of the specified field. |
| dMinRange | Minimum range for the numerical comparison. |
| dMaxRange | Maximum range for the numerical comparison |
| bVisible |
TRUE = shapes will be displayed FALSE = shapes will not be displayed |
Description
Shows shapes by wildcard.
The wildcard works in one of two ways.
-
When (strVarValue != "") the 'strStringValue' will be compared to the value of the specified field
-
When (strVarValue == "") then a numerical comparison is executed. Match is found when the numerical value of the field is within this range.
Example
Hides the shape Helsinki and then shows it again.
Hides the shape Helsinki:
main()
{
GisViewer_ewo1.showShapesWildcard("cities", "NAME", "Helsink*", 0, 0, FALSE );
}Shows the shape Helsinki:
main()
{
GisViewer_ewo1.showShapesWildcard("cities", "NAME", "Helsink*", 0, 0, TRUE );
}Assignment
GIS Viewer
