コード例 #1
0
 public SkiaSharp.SKPoint PlaceInfoToSKPoint(PraxisCore.StandaloneDbTables.PlaceInfo2 pi, ImageStats imgstats)
 {
     SkiaSharp.SKPoint point = new SkiaSharp.SKPoint();
     point.X = (float)((pi.lonCenter - imgstats.area.WestLongitude) * (1 / imgstats.degreesPerPixelX));
     point.Y = (float)((pi.latCenter - imgstats.area.SouthLatitude) * (1 / imgstats.degreesPerPixelY));
     return(point);
 }
コード例 #2
0
        public Rectangle PlaceInfoToRect(PraxisCore.StandaloneDbTables.PlaceInfo2 pi, ImageStats info)
        {
            //TODO test this.
            Rectangle r         = new Rectangle();
            float     heightMod = (float)pi.height / 2;
            float     widthMod  = (float)pi.width / 2;

            r.Width  = (int)(pi.width * info.pixelsPerDegreeX);
            r.Height = (int)(pi.height * info.pixelsPerDegreeY);
            r.X      = (int)(pi.lonCenter * info.pixelsPerDegreeX);
            r.Y      = (int)(pi.latCenter * info.pixelsPerDegreeY);

            return(r);
        }
コード例 #3
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        /// <summary>
        /// Converts the offline-standalone PlaceInfo entries into SKRects for drawing on a SlippyMap. Used to visualize the offline mode beahvior of areas.
        /// </summary>
        /// <param name="pi">PlaceInfo object to convert</param>
        /// <param name="info">ImageStats for the resulting map tile</param>
        /// <returns>The SKRect representing the standaloneDb size of the PlaceInfo</returns>
        public SkiaSharp.SKRect PlaceInfoToRect(PraxisCore.StandaloneDbTables.PlaceInfo2 pi, ImageStats info)
        {
            SkiaSharp.SKRect r         = new SkiaSharp.SKRect();
            float            heightMod = (float)pi.height / 2;
            float            widthMod  = (float)pi.width / 2;

            r.Left   = (float)pi.lonCenter - widthMod;
            r.Left   = (float)(r.Left - info.area.WestLongitude) * (float)(1 / info.degreesPerPixelX);
            r.Right  = (float)pi.lonCenter + widthMod;
            r.Right  = (float)(r.Right - info.area.WestLongitude) * (float)(1 / info.degreesPerPixelX);
            r.Top    = (float)pi.latCenter + heightMod;
            r.Top    = (float)(r.Top - info.area.SouthLatitude) * (float)(1 / info.degreesPerPixelY);
            r.Bottom = (float)pi.latCenter - heightMod;
            r.Bottom = (float)(r.Bottom - info.area.SouthLatitude) * (float)(1 / info.degreesPerPixelY);

            return(r);
        }
コード例 #4
0
        public SkiaSharp.SKPoint[] PlaceInfoToSKPoints(PraxisCore.StandaloneDbTables.PlaceInfo2 pi, ImageStats info)
        {
            float heightMod = (float)pi.height / 2;
            float widthMod  = (float)pi.width / 2;
            var   points    = new SkiaSharp.SKPoint[5];

            points[0] = new SkiaSharp.SKPoint((float)(pi.lonCenter + widthMod), (float)(pi.latCenter + heightMod)); //upper right corner
            points[1] = new SkiaSharp.SKPoint((float)(pi.lonCenter + widthMod), (float)(pi.latCenter - heightMod)); //lower right
            points[2] = new SkiaSharp.SKPoint((float)(pi.lonCenter - widthMod), (float)(pi.latCenter - heightMod)); //lower left
            points[3] = new SkiaSharp.SKPoint((float)(pi.lonCenter - widthMod), (float)(pi.latCenter + heightMod)); //upper left
            points[4] = new SkiaSharp.SKPoint((float)(pi.lonCenter + widthMod), (float)(pi.latCenter + heightMod)); //upper right corner again for a closed shape.

            //points is now a geometric area. Convert to image area
            points = points.Select(p => new SkiaSharp.SKPoint((float)((p.X - info.area.WestLongitude) * (1 / info.degreesPerPixelX)), (float)((p.Y - info.area.SouthLatitude) * (1 / info.degreesPerPixelY)))).ToArray();

            return(points);
        }