How to use MapCircle outwith Mapobject [in a function]? - qt

Question

I want ask, how I can use the MapCircle outwith the Map {} object. I want write a function, which will draw a way, and I thought, that I can do somethink like that:
function putWay (way)
{
for (var i = 0; i < getLatitude.count - 1; i++ )
{
way.center {
longtitude: getLongtitude.get(i).longtitude
latitude: getLatitude.get(i).latitude
}
}
}
Way = MapCircel
getLatitude = listView, where are my data (Latitude) from DB
getLongtitude, this same but Longtitude
And way would be a MapCircel id, but it doesn't work. I think becouse of using the Map properity outwith the Map object, but maybe is a way to using the Map properity outwith Map object? Maybe a pointer or somethink like that? Maybe I can create my own object/properity?

Answer 1

If it were a single item, the solution is as follows:
way.center = QtPositioning.coordinate(getLongtitude.get(i).latitude, getLatitude.get(i).longtitude)
But in your case it is not ideal because the number of points is variable.
When you have a variable amount of data it is better to use a model, I see that you wanted to use LocalStorage but unfortunately it does not allow to read a sqlite by the path, so in this case you must implement a model, in a previous answer and implement it.
Then you have to use a MapItemView and pass it to the MapCircle as a delegate.
SqlQueryModel{
id: querymodel
query: "select * from coordinates"
}
// ...
Map {
// ...
MapItemView{
model: querymodel
delegate: MapCircle {
center: QtPositioning.coordinate(latitude, longitude)
radius: 1.0
color: 'blue'
border.width: 1
}
}
The above is the essential but I also took the liberty to improve your code so you can find it here.