Map.clearMarkers Function

Format

b = map_name.clearMarkers();

Description

The Map.clearMarkers function removes all the markers currently on the Map object named map_name.

Return Value

The function returns a logical value of 1 (true).

Example

// User function that will be called on button click
// to filter households by status
function filterMapHouseholds(Map myMap)

numeric choice = accept("Choose status to show", "Not started", "Partial", "Complete");
if choice > 0 then

// Clear current markers
myMap.clearMarkers();

// Add markers for households matching status chosen
forcase HOUSEHOLD_DICT where HOUSEHOLD_STATUS = choice do
numeric marker = myMap.addMarker(HOUSEHOLD_LATITUDE, HOUSEHOLD_LONGITUDE);
myMap.setMarkerDescription(marker, maketext("%l - %s", HOUSEHOLD_NUMBER, HOUSEHOLD_HEAD_NAME));
endfor;
endif;

end;