private List<List<GeometryPixelCoords>> GetGeometryPixelCoordsShifted(
List<List<GeometryPointSequence>> geomInstanceGeoPoints, int zoom, int shiftedX, int shiftedY)
{
var pixelCoordsListList = new List<List<GeometryPixelCoords>>();
var geomPixCoordsList = new List<GeometryPixelCoords>();
var coords = new GeometryPixelCoords();
foreach (var list in geomInstanceGeoPoints)
foreach (GeometryPointSequence pointseq in list)
{
coords.PixelCoordList = GetPixelCoordsShifted(pointseq.PointList, zoom, shiftedX, shiftedY);
coords.InnerRing = pointseq.InnerRing;
geomPixCoordsList.Add(coords);
}
pixelCoordsListList.Add(geomPixCoordsList);
return pixelCoordsListList;
}
private List<List<GeometryPixelCoords>> GetGeometryPixelCoordsShifted(
List<List<GeometryPointSequence>> geomInstanceGeoPoints, int zoom, int shiftedX, int shiftedY)
{
var pixelCoordsListList = new List<List<GeometryPixelCoords>>();
var geomPixCoordsList = new List<GeometryPixelCoords>();
var coords = new GeometryPixelCoords();
foreach (var list in geomInstanceGeoPoints)
foreach (GeometryPointSequence pointseq in list)
{
coords.PixelCoordList = GetPixelCoordsShifted(pointseq.PointList, zoom, shiftedX, shiftedY);
coords.InnerRing = pointseq.InnerRing;
geomPixCoordsList.Add(coords);
}
pixelCoordsListList.Add(geomPixCoordsList);
return pixelCoordsListList;
}
/// <summary>
/// Converts to degree coordinates to pixels
/// Shifts to tile with position numbers equals to zero
/// </summary>
/// <param name="info"></param>
/// <param name="zoom"></param>
/// <param name="x"></param>
/// <param name="y"></param>
/// <returns></returns>
private GeometryZoomedPixelsInfo ConvertToGeometryZoomedPixelsZeroTileShiftedInfo(GeometryInstanceInfo info,
int zoom, int x, int y)
{
int tilezeroshiftX = x*TILE_SIZE;
int tilezeroshiftY = y*TILE_SIZE;
var result = new GeometryZoomedPixelsInfo();
var pixelCoordsListList = new List<List<GeometryPixelCoords>>();
var geomPixCoordsList = new List<GeometryPixelCoords>();
var coords = new GeometryPixelCoords {InnerRing = false};
OpenGisGeometryType type = info.ShapeType;
result.ShapeType = type;
switch (type)
{
case OpenGisGeometryType.Point:
PointF[] geopoints = info.Points[0][0].PointList;
coords.PixelCoordList = new[]
{
new Point
{
X = _conv.FromLongitudeToXPixel(geopoints[0].X, zoom) - tilezeroshiftX,
Y = _conv.FromLatitudeToYPixel(geopoints[0].Y, zoom) - tilezeroshiftY
}
};
geomPixCoordsList.Add(coords);
pixelCoordsListList.Add(geomPixCoordsList);
break;
case OpenGisGeometryType.LineString:
coords.PixelCoordList = GetPixelCoordsShifted(info.Points[0][0].PointList, zoom, tilezeroshiftX,
tilezeroshiftY);
geomPixCoordsList.Add(coords);
pixelCoordsListList.Add(geomPixCoordsList);
break;
case OpenGisGeometryType.Polygon:
foreach (var list in info.Points)
foreach (GeometryPointSequence pointseq in list)
{
coords.PixelCoordList = GetPixelCoordsShifted(pointseq.PointList, zoom, tilezeroshiftX,
tilezeroshiftY);
coords.InnerRing = pointseq.InnerRing;
geomPixCoordsList.Add(coords);
}
pixelCoordsListList.Add(geomPixCoordsList);
break;
case OpenGisGeometryType.MultiPoint:
case OpenGisGeometryType.MultiLineString:
case OpenGisGeometryType.MultiPolygon:
pixelCoordsListList = GetGeometryPixelCoordsShifted(info.Points, zoom, tilezeroshiftX,
tilezeroshiftY);
break;
case OpenGisGeometryType.GeometryCollection:
GeometryInstanceInfo[] geomColl = info.GeometryInstanceInfoCollection;
int n = info.GeometryInstanceInfoCollection.Length;
var geomPixZoomInfoCollection = new GeometryZoomedPixelsInfo[n];
for (int i = 0; i < n; i++)
{
var geom = new GeometryZoomedPixelsInfo();
geom.ShapeType = geomColl[i].ShapeType;
geom.Points = GetGeometryPixelCoordsShifted(geomColl[i].Points, zoom, tilezeroshiftX,
tilezeroshiftY);
geomPixZoomInfoCollection[i] = geom;
}
result.GeometryInstanceInfoCollection = geomPixZoomInfoCollection;
break;
}
if (type != OpenGisGeometryType.GeometryCollection) result.Points = pixelCoordsListList;
return result;
}
private GeometryZoomedPixelsInfo ConvertToGeometryZoomedPixelsInfo(GeometryInstanceInfo info, int zoom)
{
var result = new GeometryZoomedPixelsInfo();
var pixelCoordsListList = new List<List<GeometryPixelCoords>>();
var geomPixCoordsList = new List<GeometryPixelCoords>();
var coords = new GeometryPixelCoords {InnerRing = false};
OpenGisGeometryType type = info.ShapeType;
result.ShapeType = type;
switch (type)
{
case OpenGisGeometryType.Point:
PointF[] geopoints = info.Points[0][0].PointList;
coords.PixelCoordList = new[]
{
new Point
{
X = _conv.FromLongitudeToXPixel(geopoints[0].X, zoom),
Y = _conv.FromLatitudeToYPixel(geopoints[0].Y, zoom)
}
};
geomPixCoordsList.Add(coords);
pixelCoordsListList.Add(geomPixCoordsList);
break;
case OpenGisGeometryType.LineString:
coords.PixelCoordList = GetPixelCoords(info.Points[0][0].PointList, zoom);
geomPixCoordsList.Add(coords);
pixelCoordsListList.Add(geomPixCoordsList);
break;
case OpenGisGeometryType.Polygon:
foreach (var list in info.Points)
foreach (GeometryPointSequence pointseq in list)
{
coords.PixelCoordList = GetPixelCoords(pointseq.PointList, zoom);
coords.InnerRing = pointseq.InnerRing;
geomPixCoordsList.Add(coords);
}
pixelCoordsListList.Add(geomPixCoordsList);
break;
case OpenGisGeometryType.MultiPoint:
case OpenGisGeometryType.MultiLineString:
case OpenGisGeometryType.MultiPolygon:
pixelCoordsListList = GetGeometryPixelcoords(info.Points, zoom);
break;
case OpenGisGeometryType.GeometryCollection:
GeometryInstanceInfo[] geomColl = info.GeometryInstanceInfoCollection;
int n = info.GeometryInstanceInfoCollection.Length;
var geomPixZoomInfoCollection = new GeometryZoomedPixelsInfo[n];
for (int i = 0; i < n; i++)
{
var geom = new GeometryZoomedPixelsInfo
{
ShapeType = geomColl[i].ShapeType,
Points = GetGeometryPixelcoords(geomColl[i].Points, zoom)
};
geomPixZoomInfoCollection[i] = geom;
}
result.GeometryInstanceInfoCollection = geomPixZoomInfoCollection;
break;
}
if (type != OpenGisGeometryType.GeometryCollection) result.Points = pixelCoordsListList;
return result;
}
