mgl_expressionForSteppingExpression static method

NSExpression mgl_expressionForSteppingExpression(
  1. NSExpression steppingExpression, {
  2. required NSExpression fromExpression,
  3. required NSExpression stops,
})

Returns a step function expression specifying the stepping, from expression and stops.

@param steppingExpression The stepping expression. @param minimumExpression The expression which could be a constant or function expression. @param stops The stops must be an NSDictionary constant NSExpression.

TODO: Data-driven circles TODO: Cluster point data TODO: Use images to cluster point data Learn how to use this expression to style a map layer based on an attribute value.

Implementation

static NSExpression mgl_expressionForSteppingExpression(NSExpression steppingExpression, {required NSExpression fromExpression,required NSExpression stops}) {
objc.checkOsVersionInternal('NSExpression.mgl_expressionForSteppingExpression:fromExpression:stops:', iOS: (false, (3, 0, 0)), macOS: (false, (10, 4, 0)));
  final _ret = _objc_msgSend_11spmsz(_class_NSExpression, _sel_mgl_expressionForSteppingExpression_fromExpression_stops_, steppingExpression.ref.pointer, fromExpression.ref.pointer, stops.ref.pointer);
  return NSExpression.castFromPointer(_ret, retain: true, release: true);
}