getNumericalDisplayRuleValue method
Implementation
Future<num> getNumericalDisplayRuleValue(
String value, MPDisplayRule displayRule) async {
switch (value) {
case "zoomFrom":
var value = await displayRule.getZoomFrom();
if (value != null) {
return value;
} else {
return 0;
}
case "zoomTo":
var value = await displayRule.getZoomTo();
if (value != null) {
return value;
} else {
return 0;
}
}
return 0;
}