Geo Fencing - point inside/outside polygon

Question

I would like to determine a polygon and implement an algorithm which would check if a point is inside or outside the polygon.

Does anyone know if there is any exampl

Answer 1

You can try this simple class https://github.com/xopbatgh/sb-polygon-pointer

It is easy to deal with it

1. You just insert polygon coordinates into array
2. Ask library is desired point with lat/lng inside the polygon

$polygonBox = [
    [55.761515, 37.600375],
    [55.759428, 37.651156],
    [55.737112, 37.649566],
    [55.737649, 37.597301],
];

$sbPolygonEngine = new sbPolygonEngine($polygonBox);

$isCrosses = $sbPolygonEngine->isCrossesWith(55.746768, 37.625605);

// $isCrosses is boolean

(answer was returned from deleted by myself because initially it was formatted wrong)