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);
}
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);
}
/// <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);
}
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);
}
