area property Null safety
The area pf the Polygon in square meters.
Example:
Polygon polygon = Polygon([
LinearRing([
Coordinate(0, 0),
Coordinate(0, 1),
Coordinate(1, 1),
Coordinate(1, 0),
Coordinate(0, 0),
]),
]);
print(polygon.area); // 1
Implementation
double get area {
double polygonArea(List<LinearRing> rings) {
double polyArea = 0;
if (rings.isNotEmpty) {
polyArea += (rings[0].area).abs();
for (var hole in rings.getRange(1, coordinates.length)) {
polyArea -= (hole.area).abs();
}
}
return polyArea;
}
return polygonArea(coordinates);
}