Esempi in C# (CSharp) per MapControl MapProjection.DegreesToViewportScale

Esempio n. 1

File: MapGraticule.cs Progetto: PlumpMath/XAML-Map-Control

        private double GetLineDistance()
        {
            var minDistance = MinLineDistance / MapProjection.DegreesToViewportScale(ParentMap.ZoomLevel);
            var scale       = 1d;

            if (minDistance < 1d)
            {
                scale        = minDistance < 1d / 60d ? 3600d : 60d;
                minDistance *= scale;
            }

            var lineDistances = new double[] { 1d, 2d, 5d, 10d, 15d, 30d, 60d };
            var i             = 0;

            while (i < lineDistances.Length - 1 && lineDistances[i] < minDistance)
            {
                i++;
            }

            return(lineDistances[i] / scale);
        }