Determine the bounding box based on the specified distance in miles and the latitude and longitude coordinates provided

I am in need of a solution to calculate the Bounding Box for a given latitude, longitude, and distance. The distance can be in Miles, meters, or feet.

While I have come across many articles on how to calculate the Bounding Box in kilometers, I have not been able to find information on doing so in Miles, meters, or Feet. Can anyone assist me with this?

This thread provides information on calculating in KM: How to calculate the bounding box for a given lat/lng location?

I am open to either Javascript or C# code solutions. Ideally, I am looking for a simple formula as we will be implementing this in PowerApps.

Any assistance would be greatly appreciated.

javascriptc#canvasdynamics-crmpowerapps

Answer №1

To incorporate that intricate formula into Power Apps, you can refer to the following example, which is a modified version of the initial response in the linked post. This solution assumes that the latitude, longitude, and half length values in kilometers are stored in text input controls named txtLat, txtLong, and txtHalfSideKm, respectively.

Set(
    bounds,
    With(
        {
            WGS84_a: 6378137.0, // Major semiaxis [m]
            WGS84_b: 6356752.3, // Minor semiaxis [m]
            lat: Radians(Value(txtLat.Text)), lon: Radians(Value(txtLon.Text)),
            halfSideMeters: Value(txtHalfSideKm.Text) * 1000
        },
        With(
            {
                An: WGS84_a * WGS84_a * Cos(lat), Bn: WGS84_b * WGS84_b * Sin(lat),
                Ad: WGS84_a * Cos(lat), Bd: WGS84_b * Sin(lat)
            },
            With(
                { Radius: Sqrt( (An*An + Bn*Bn) / (Ad*Ad + Bd*Bd) ) },
                With(
                    { pRadius: Radius * Cos(lat) },
                    {
                        latMin: Degrees(lat - halfSideMeters / Radius),
                        latMax: Degrees(lat + halfSideMeters / Radius),
                        lonMin: Degrees(lon - halfSideMeters / pRadius),
                        lonMax: Degrees(lon + halfSideMeters / pRadius)
                    }
                )
            )
        )
    )
)

If you wish to use a different unit for the half-side measurement, you only need to adjust the halfSideMeters definition to include the appropriate conversion factor.

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