internal static void RunTest(MapFile mapFile)
{
int tileX = MercatorProjection.LongitudeToTileX(0, ZOOM_LEVEL);
int tileY = MercatorProjection.LatitudeToTileY(0, ZOOM_LEVEL);
Tile tile = new Tile(tileX, tileY, ZOOM_LEVEL, 256);
MapReadResult mapReadResult = mapFile.ReadMapData(tile);
mapFile.Close();
Assert.AreEqual(mapReadResult.PointOfInterests.Count, 0);
Assert.AreEqual(1, mapReadResult.Ways.Count);
LatLong latLong1 = new LatLong(0.0, 0.0, true);
LatLong latLong2 = new LatLong(0.0, 0.1, true);
LatLong latLong3 = new LatLong(-0.1, 0.1, true);
LatLong latLong4 = new LatLong(-0.1, 0.0, true);
LatLong[][] latLongsExpected = new LatLong[][]
{
new LatLong[] { latLong1, latLong2, latLong3, latLong4, latLong1 }
};
Way way = mapReadResult.Ways[0];
// TODO: Was ArrayEquals()
Assert.AreEqual(latLongsExpected, way.LatLongs);
}
private void AdjustFrameBufferMatrix(MapPosition mapPositionFrameBuffer, Dimension mapViewDimension, double scaleFactor, LatLong pivot)
{
MapPosition mapViewPosition = this.model.mapViewPosition.MapPosition;
long mapSize = MercatorProjection.GetMapSize(mapPositionFrameBuffer.ZoomLevel, model.displayModel.TileSize);
Point pointFrameBuffer = MercatorProjection.GetPixel(mapPositionFrameBuffer.LatLong, mapSize);
Point pointMapPosition = MercatorProjection.GetPixel(mapViewPosition.LatLong, mapSize);
double diffX = pointFrameBuffer.X - pointMapPosition.X;
double diffY = pointFrameBuffer.Y - pointMapPosition.Y;
// we need to compute the pivot distance from the map center
// as we will need to find the pivot point for the
// frame buffer (which generally has not the same size as the
// map view).
double pivotDistanceX = 0d;
double pivotDistanceY = 0d;
if (pivot != null)
{
Point pivotXY = MercatorProjection.GetPixel(pivot, mapSize);
pivotDistanceX = pivotXY.X - pointFrameBuffer.X;
pivotDistanceY = pivotXY.Y - pointFrameBuffer.Y;
}
float currentScaleFactor = (float)(scaleFactor / Math.Pow(2, mapPositionFrameBuffer.ZoomLevel));
this.frameBuffer.AdjustMatrix((float)diffX, (float)diffY, currentScaleFactor, mapViewDimension, (float)pivotDistanceX, (float)pivotDistanceY);
}
public override void Draw(BoundingBox boundingBox, sbyte zoomLevel, ICanvas canvas, Point topLeftPoint)
{
long tileLeft = MercatorProjection.LongitudeToTileX(boundingBox.MinLongitude, zoomLevel);
long tileTop = MercatorProjection.LatitudeToTileY(boundingBox.MaxLatitude, zoomLevel);
long tileRight = MercatorProjection.LongitudeToTileX(boundingBox.MaxLongitude, zoomLevel);
long tileBottom = MercatorProjection.LatitudeToTileY(boundingBox.MinLatitude, zoomLevel);
int tileSize = this.displayModel.TileSize;
int pixelX1 = (int)(MercatorProjection.TileToPixel(tileLeft, tileSize) - topLeftPoint.X);
int pixelY1 = (int)(MercatorProjection.TileToPixel(tileTop, tileSize) - topLeftPoint.Y);
int pixelX2 = (int)(MercatorProjection.TileToPixel(tileRight, tileSize) - topLeftPoint.X + tileSize);
int pixelY2 = (int)(MercatorProjection.TileToPixel(tileBottom, tileSize) - topLeftPoint.Y + tileSize);
for (int lineX = pixelX1; lineX <= pixelX2 + 1; lineX += tileSize)
{
canvas.DrawLine(lineX, pixelY1, lineX, pixelY2, this.paintBack);
}
for (int lineY = pixelY1; lineY <= pixelY2 + 1; lineY += tileSize)
{
canvas.DrawLine(pixelX1, lineY, pixelX2, lineY, this.paintBack);
}
for (int lineX = pixelX1; lineX <= pixelX2 + 1; lineX += tileSize)
{
canvas.DrawLine(lineX, pixelY1, lineX, pixelY2, this.paintFront);
}
for (int lineY = pixelY1; lineY <= pixelY2 + 1; lineY += tileSize)
{
canvas.DrawLine(pixelX1, lineY, pixelX2, lineY, this.paintFront);
}
}
public void RenderPointOfInterestCircle(RenderContext renderContext, float radius, IPaint fill, IPaint stroke, int level, PointOfInterest poi)
{
Point poiPosition = MercatorProjection.GetPixelRelativeToTile(poi.Position, renderContext.rendererJob.tile);
renderContext.AddToCurrentDrawingLayer(level, new ShapePaintContainer(new CircleContainer(poiPosition, radius), stroke));
renderContext.AddToCurrentDrawingLayer(level, new ShapePaintContainer(new CircleContainer(poiPosition, radius), fill));
}
public virtual void ExecuteQueryTest()
{
MapFile mapFile = new MapFile(MAP_FILE);
MapFileInfo mapFileInfo = mapFile.MapFileInfo;
Assert.True(mapFileInfo.DebugFile);
for (sbyte zoomLevel = ZOOM_LEVEL_MIN; zoomLevel <= ZOOM_LEVEL_MAX; ++zoomLevel)
{
int tileX = MercatorProjection.LongitudeToTileX(0.04, zoomLevel);
int tileY = MercatorProjection.LatitudeToTileY(0.04, zoomLevel);
Tile tile = new Tile(tileX, tileY, zoomLevel, 256);
MapReadResult mapReadResult = mapFile.ReadMapData(tile);
Assert.AreEqual(1, mapReadResult.PointOfInterests.Count);
Assert.AreEqual(1, mapReadResult.Ways.Count);
CheckPointOfInterest(mapReadResult.PointOfInterests[0]);
CheckWay(mapReadResult.Ways[0]);
}
mapFile.Close();
}
/// <summary>
/// Converts geographic coordinates to view x/y coordinates in the map view.
/// </summary>
/// <param name="in">
/// the geographic coordinates </param>
/// <returns> x/y view coordinates for the given location </returns>
public virtual Point ToPixels(LatLong @in)
{
if (@in == null || this.mapView.Width <= 0 || this.mapView.Height <= 0)
{
return(null);
}
MapPosition mapPosition = this.mapView.Model.mapViewPosition.MapPosition;
// this means somehow the mapview is not yet properly set up, see issue #308.
if (mapPosition == null)
{
return(null);
}
// calculate the pixel coordinates of the top left corner
LatLong latLong = mapPosition.LatLong;
long mapSize = MercatorProjection.GetMapSize(mapPosition.ZoomLevel, this.mapView.Model.displayModel.TileSize);
double pixelX = MercatorProjection.LongitudeToPixelX(latLong.Longitude, mapSize);
double pixelY = MercatorProjection.LatitudeToPixelY(latLong.Latitude, mapSize);
pixelX -= this.mapView.Width >> 1;
pixelY -= this.mapView.Height >> 1;
// create a new point and return it
return(new Point((int)(MercatorProjection.LongitudeToPixelX(@in.Longitude, mapSize) - pixelX), (int)(MercatorProjection.LatitudeToPixelY(@in.Latitude, mapSize) - pixelY)));
}
public override void Draw(BoundingBox boundingBox, sbyte zoomLevel, ICanvas canvas, Point topLeftPoint)
{
lock (this)
{
if (this.latLong == null || this.bitmap == null)
{
return;
}
long mapSize = MercatorProjection.GetMapSize(zoomLevel, this.displayModel.TileSize);
double pixelX = MercatorProjection.LongitudeToPixelX(this.latLong.Longitude, mapSize);
double pixelY = MercatorProjection.LatitudeToPixelY(this.latLong.Latitude, mapSize);
int halfBitmapWidth = this.bitmap.Width / 2;
int halfBitmapHeight = this.bitmap.Height / 2;
int left = (int)(pixelX - topLeftPoint.X - halfBitmapWidth + this.horizontalOffset);
int top = (int)(pixelY - topLeftPoint.Y - halfBitmapHeight + this.verticalOffset);
int right = left + this.bitmap.Width;
int bottom = top + this.bitmap.Height;
Rectangle bitmapRectangle = new Rectangle(left, top, right, bottom);
Rectangle canvasRectangle = new Rectangle(0, 0, canvas.Width, canvas.Height);
if (!canvasRectangle.Intersects(bitmapRectangle))
{
return;
}
canvas.DrawBitmap(this.bitmap, left, top);
}
}
/// <summary>
/// The pivot point is the point the map zooms around. If the map zooms around its center null is returned, otherwise
/// the zoom-specific x/y pixel coordinates for the MercatorProjection (note: not the x/y coordinates for the map
/// view or the frame buffer, the MapViewPosition knows nothing about them).
/// </summary>
/// <param name="zoomLevel"> the zoomlevel to compute the x/y coordinates for </param>
/// <returns> the x/y coordinates of the map pivot point if set or null otherwise. </returns>
public virtual Point GetPivotXY(sbyte zoomLevel)
{
lock (this)
{
if (this.pivot != null)
{
return(MercatorProjection.GetPixel(this.pivot, MercatorProjection.GetMapSize(zoomLevel, displayModel.TileSize)));
}
return(null);
}
}
public static Point GetTopLeftPoint(MapPosition mapPosition, Dimension canvasDimension, int tileSize)
{
LatLong centerPoint = mapPosition.LatLong;
int halfCanvasWidth = canvasDimension.Width / 2;
int halfCanvasHeight = canvasDimension.Height / 2;
long mapSize = MercatorProjection.GetMapSize(mapPosition.ZoomLevel, tileSize);
double pixelX = Math.Round(MercatorProjection.LongitudeToPixelX(centerPoint.Longitude, mapSize));
double pixelY = Math.Round(MercatorProjection.LatitudeToPixelY(centerPoint.Latitude, mapSize));
return(new Point((int)pixelX - halfCanvasWidth, (int)pixelY - halfCanvasHeight));
}
public override void Draw(BoundingBox boundingBox, sbyte zoomLevel, ICanvas canvas, Point topLeftPoint)
{
lock (this)
{
if (this.latLongs.Count < 2 || (this.paintStroke == null && this.paintFill == null))
{
return;
}
IEnumerator <LatLong> iterator = this.latLongs.GetEnumerator();
IPath path = this.graphicFactory.CreatePath();
LatLong latLong = iterator.Current;
long mapSize = MercatorProjection.GetMapSize(zoomLevel, displayModel.TileSize);
float x = (float)(MercatorProjection.LongitudeToPixelX(latLong.Longitude, mapSize) - topLeftPoint.X);
float y = (float)(MercatorProjection.LatitudeToPixelY(latLong.Latitude, mapSize) - topLeftPoint.Y);
path.MoveTo(x, y);
while (iterator.MoveNext())
{
latLong = iterator.Current;
x = (float)(MercatorProjection.LongitudeToPixelX(latLong.Longitude, mapSize) - topLeftPoint.X);
y = (float)(MercatorProjection.LatitudeToPixelY(latLong.Latitude, mapSize) - topLeftPoint.Y);
path.LineTo(x, y);
}
if (this.paintStroke != null)
{
if (this.keepAligned)
{
this.paintStroke.SetBitmapShaderShift = topLeftPoint;
}
canvas.DrawPath(path, this.paintStroke);
}
if (this.paintFill != null)
{
if (this.keepAligned)
{
this.paintFill.SetBitmapShaderShift = topLeftPoint;
}
canvas.DrawPath(path, this.paintFill);
}
}
}
public virtual void ExecuteQueryTest()
{
MapFile mapFile = new MapFile(MAP_FILE);
for (sbyte zoomLevel = 0; zoomLevel <= ZOOM_LEVEL_MAX; ++zoomLevel)
{
int tileX = MercatorProjection.LongitudeToTileX(1, zoomLevel);
int tileY = MercatorProjection.LatitudeToTileY(1, zoomLevel);
Tile tile = new Tile(tileX, tileY, zoomLevel, 256);
MapReadResult mapReadResult = mapFile.ReadMapData(tile);
Assert.AreEqual(0, mapReadResult.PointOfInterests.Count);
Assert.AreEqual(0, mapReadResult.Ways.Count);
}
mapFile.Close();
}
/// <summary>
/// Moves the center position of the map by the given amount of pixels.
/// </summary>
/// <param name="moveHorizontal">
/// the amount of pixels to move this MapViewPosition horizontally. </param>
/// <param name="moveVertical">
/// the amount of pixels to move this MapViewPosition vertically. </param>
/// <param name="zoomLevelDiff">
/// the difference in desired zoom level. </param>
/// <param name="animated">
/// whether the move should be animated. </param>
public virtual void MoveCenterAndZoom(double moveHorizontal, double moveVertical, sbyte zoomLevelDiff, bool animated)
{
lock (this)
{
long mapSize = MercatorProjection.GetMapSize(this.zoomLevel, this.displayModel.TileSize);
double pixelX = MercatorProjection.LongitudeToPixelX(this.longitude, mapSize) - moveHorizontal;
double pixelY = MercatorProjection.LatitudeToPixelY(this.latitude, mapSize) - moveVertical;
pixelX = Math.Min(Math.Max(0, pixelX), mapSize);
pixelY = Math.Min(Math.Max(0, pixelY), mapSize);
double newLatitude = MercatorProjection.PixelYToLatitude(pixelY, mapSize);
double newLongitude = MercatorProjection.PixelXToLongitude(pixelX, mapSize);
setCenterInternal(newLatitude, newLongitude);
setZoomLevelInternal(this.zoomLevel + zoomLevelDiff, animated);
}
NotifyObservers();
}
public static ISet <Tile> GetTiles(BoundingBox boundingBox, sbyte zoomLevel, int tileSize)
{
int tileLeft = MercatorProjection.LongitudeToTileX(boundingBox.MinLongitude, zoomLevel);
int tileTop = MercatorProjection.LatitudeToTileY(boundingBox.MaxLatitude, zoomLevel);
int tileRight = MercatorProjection.LongitudeToTileX(boundingBox.MaxLongitude, zoomLevel);
int tileBottom = MercatorProjection.LatitudeToTileY(boundingBox.MinLatitude, zoomLevel);
ISet <Tile> tiles = new HashSet <Tile>();
for (int tileY = tileTop; tileY <= tileBottom; ++tileY)
{
for (int tileX = tileLeft; tileX <= tileRight; ++tileX)
{
tiles.Add(new Tile(tileX, tileY, zoomLevel, tileSize));
}
}
return(tiles);
}
public static BoundingBox GetBoundingBox(MapPosition mapPosition, Dimension canvasDimension, int tileSize)
{
long mapSize = MercatorProjection.GetMapSize(mapPosition.ZoomLevel, tileSize);
double pixelX = MercatorProjection.LongitudeToPixelX(mapPosition.LatLong.Longitude, mapSize);
double pixelY = MercatorProjection.LatitudeToPixelY(mapPosition.LatLong.Latitude, mapSize);
int halfCanvasWidth = canvasDimension.Width / 2;
int halfCanvasHeight = canvasDimension.Height / 2;
double pixelXMin = Math.Max(0, pixelX - halfCanvasWidth);
double pixelYMin = Math.Max(0, pixelY - halfCanvasHeight);
double pixelXMax = Math.Min(mapSize, pixelX + halfCanvasWidth);
double pixelYMax = Math.Min(mapSize, pixelY + halfCanvasHeight);
double minLatitude = MercatorProjection.PixelYToLatitude(pixelYMax, mapSize);
double minLongitude = MercatorProjection.PixelXToLongitude(pixelXMin, mapSize);
double maxLatitude = MercatorProjection.PixelYToLatitude(pixelYMin, mapSize);
double maxLongitude = MercatorProjection.PixelXToLongitude(pixelXMax, mapSize);
return(new BoundingBox(minLatitude, minLongitude, maxLatitude, maxLongitude));
}
public override void Draw(BoundingBox boundingBox, sbyte zoomLevel, ICanvas canvas, Point topLeftPoint)
{
lock (this)
{
if (this.latLong == null || (this.paintStroke == null && this.paintFill == null))
{
return;
}
double latitude = this.latLong.Latitude;
double longitude = this.latLong.Longitude;
long mapSize = MercatorProjection.GetMapSize(zoomLevel, displayModel.TileSize);
int pixelX = (int)(MercatorProjection.LongitudeToPixelX(longitude, mapSize) - topLeftPoint.X);
int pixelY = (int)(MercatorProjection.LatitudeToPixelY(latitude, mapSize) - topLeftPoint.Y);
int radiusInPixel = GetRadiusInPixels(latitude, zoomLevel);
Rectangle canvasRectangle = new Rectangle(0, 0, canvas.Width, canvas.Height);
if (!canvasRectangle.IntersectsCircle(pixelX, pixelY, radiusInPixel))
{
return;
}
if (this.paintStroke != null)
{
if (this.keepAligned)
{
this.paintStroke.SetBitmapShaderShift = topLeftPoint;
}
canvas.DrawCircle(pixelX, pixelY, radiusInPixel, this.paintStroke);
}
if (this.paintFill != null)
{
if (this.keepAligned)
{
this.paintFill.SetBitmapShaderShift = topLeftPoint;
}
canvas.DrawCircle(pixelX, pixelY, radiusInPixel, this.paintFill);
}
}
}
/// <summary>
/// Calculates the required length and value of the scalebar
/// </summary>
/// <param name="unitAdapter">
/// the DistanceUnitAdapter to calculate for </param>
/// <returns> a <seealso cref="ScaleBarLengthAndValue"/> object containing the required scaleBarLength and scaleBarValue </returns>
protected internal virtual ScaleBarLengthAndValue CalculateScaleBarLengthAndValue(DistanceUnitAdapter unitAdapter)
{
this.prevMapPosition = this.mapViewPosition.MapPosition;
double groundResolution = MercatorProjection.CalculateGroundResolution(this.prevMapPosition.LatLong.Latitude, MercatorProjection.GetMapSize(this.prevMapPosition.ZoomLevel, this.displayModel.TileSize));
groundResolution = groundResolution / unitAdapter.MeterRatio;
int[] scaleBarValues = unitAdapter.ScaleBarValues;
int scaleBarLength = 0;
int mapScaleValue = 0;
for (int i = 0; i < scaleBarValues.Length; ++i)
{
mapScaleValue = scaleBarValues[i];
scaleBarLength = (int)(mapScaleValue / groundResolution);
if (scaleBarLength < (this.mapScaleBitmap.Width - 10))
{
break;
}
}
return(new ScaleBarLengthAndValue(scaleBarLength, mapScaleValue));
}
public static IList <TilePosition> GetTilePositions(BoundingBox boundingBox, sbyte zoomLevel, Point topLeftPoint, int tileSize)
{
int tileLeft = MercatorProjection.LongitudeToTileX(boundingBox.MinLongitude, zoomLevel);
int tileTop = MercatorProjection.LatitudeToTileY(boundingBox.MaxLatitude, zoomLevel);
int tileRight = MercatorProjection.LongitudeToTileX(boundingBox.MaxLongitude, zoomLevel);
int tileBottom = MercatorProjection.LatitudeToTileY(boundingBox.MinLatitude, zoomLevel);
int initialCapacity = (tileRight - tileLeft + 1) * (tileBottom - tileTop + 1);
IList <TilePosition> tilePositions = new List <TilePosition>(initialCapacity);
for (int tileY = tileTop; tileY <= tileBottom; ++tileY)
{
for (int tileX = tileLeft; tileX <= tileRight; ++tileX)
{
double pixelX = MercatorProjection.TileToPixel(tileX, tileSize) - topLeftPoint.X;
double pixelY = MercatorProjection.TileToPixel(tileY, tileSize) - topLeftPoint.Y;
tilePositions.Add(new TilePosition(new Tile(tileX, tileY, zoomLevel, tileSize), new Point(pixelX, pixelY)));
}
}
return(tilePositions);
}
/// <summary>
/// Start animating the map towards the given point.
/// </summary>
public virtual void AnimateTo(LatLong pos)
{
new Task(async() =>
{
int totalSteps = 25; // Define the Step Number
int signX = 1; // Define the Sign for Horizontal Movement
int signY = 1; // Define the Sign for Vertical Movement
long mapSize = MercatorProjection.GetMapSize(ZoomLevel, displayModel.TileSize);
double targetPixelX = MercatorProjection.LongitudeToPixelX(pos.Longitude, mapSize);
double targetPixelY = MercatorProjection.LatitudeToPixelY(pos.Latitude, mapSize);
double currentPixelX = MercatorProjection.LongitudeToPixelX(longitude, mapSize);
double currentPixelY = MercatorProjection.LatitudeToPixelY(latitude, mapSize);
double stepSizeX = Math.Abs(targetPixelX - currentPixelX) / totalSteps;
double stepSizeY = Math.Abs(targetPixelY - currentPixelY) / totalSteps;
/* Check the Signs */
if (currentPixelX < targetPixelX)
{
signX = -1;
}
if (currentPixelY < targetPixelY)
{
signY = -1;
}
/* Compute Scroll */
for (int i = 0; i < totalSteps; i++)
{
MoveCenter(stepSizeX * signX, stepSizeY * signY);
await Task.Delay(10);
}
}).Start();
}
/// <summary>
/// Computes the geographic coordinates of a screen point.
/// </summary>
/// <returns> the coordinates of the x/y point </returns>
public virtual LatLong FromPixels(double x, double y)
{
if (this.mapView.Width <= 0 || this.mapView.Height <= 0)
{
return(null);
}
// this uses the framebuffer position, the mapview position can be out of sync with
// what the user sees on the screen if an animation is in progress
MapPosition mapPosition = this.mapView.Model.frameBufferModel.MapPosition;
// this means somehow the mapview is not yet properly set up, see issue #308.
if (mapPosition == null)
{
return(null);
}
// calculate the pixel coordinates of the top left corner
LatLong latLong = mapPosition.LatLong;
long mapSize = MercatorProjection.GetMapSize(mapPosition.ZoomLevel, this.mapView.Model.displayModel.TileSize);
double pixelX = MercatorProjection.LongitudeToPixelX(latLong.Longitude, mapSize);
double pixelY = MercatorProjection.LatitudeToPixelY(latLong.Latitude, mapSize);
pixelX -= this.mapView.Width >> 1;
pixelY -= this.mapView.Height >> 1;
// catch outer map limits
try
{
// convert the pixel coordinates to a LatLong and return it
return(new LatLong(MercatorProjection.PixelYToLatitude(pixelY + y, mapSize), MercatorProjection.PixelXToLongitude(pixelX + x, mapSize)));
}
catch (Exception)
{
return(null);
}
}
/// <returns> the non-negative radius of this circle in pixels. </returns>
protected internal virtual int GetRadiusInPixels(double latitude, sbyte zoomLevel)
{
return((int)MercatorProjection.MetersToPixels(this.radius, latitude, MercatorProjection.GetMapSize(zoomLevel, displayModel.TileSize)));
}
public virtual bool AnimationInProgress()
{
return(this.scaleFactor != MercatorProjection.ZoomLevelToScaleFactor(this.zoomLevel));
}
public override void Draw(BoundingBox boundingBox, sbyte zoomLevel, ICanvas canvas, Point topLeftPoint)
{
if (spacingConfig.ContainsKey(zoomLevel))
{
double spacing = spacingConfig[zoomLevel].Value;
double minLongitude = spacing * (Math.Floor(boundingBox.MinLongitude / spacing));
double maxLongitude = spacing * (Math.Ceiling(boundingBox.MaxLongitude / spacing));
double minLatitude = spacing * (Math.Floor(boundingBox.MinLatitude / spacing));
double maxLatitude = spacing * (Math.Ceiling(boundingBox.MaxLatitude / spacing));
long mapSize = MercatorProjection.GetMapSize(zoomLevel, this.displayModel.TileSize);
int bottom = (int)(MercatorProjection.LatitudeToPixelY(minLatitude, mapSize) - topLeftPoint.Y);
int top = (int)(MercatorProjection.LatitudeToPixelY(maxLatitude, mapSize) - topLeftPoint.Y);
int left = (int)(MercatorProjection.LongitudeToPixelX(minLongitude, mapSize) - topLeftPoint.X);
int right = (int)(MercatorProjection.LongitudeToPixelX(maxLongitude, mapSize) - topLeftPoint.X);
for (double latitude = minLatitude; latitude <= maxLatitude; latitude += spacing)
{
int pixelY = (int)(MercatorProjection.LatitudeToPixelY(latitude, mapSize) - topLeftPoint.Y);
canvas.DrawLine(left, pixelY, right, pixelY, this.lineBack);
}
for (double longitude = minLongitude; longitude <= maxLongitude; longitude += spacing)
{
int pixelX = (int)(MercatorProjection.LongitudeToPixelX(longitude, mapSize) - topLeftPoint.X);
canvas.DrawLine(pixelX, bottom, pixelX, top, this.lineBack);
}
for (double latitude = minLatitude; latitude <= maxLatitude; latitude += spacing)
{
int pixelY = (int)(MercatorProjection.LatitudeToPixelY(latitude, mapSize) - topLeftPoint.Y);
canvas.DrawLine(left, pixelY, right, pixelY, this.lineFront);
}
for (double longitude = minLongitude; longitude <= maxLongitude; longitude += spacing)
{
int pixelX = (int)(MercatorProjection.LongitudeToPixelX(longitude, mapSize) - topLeftPoint.X);
canvas.DrawLine(pixelX, bottom, pixelX, top, this.lineFront);
}
for (double latitude = minLatitude; latitude <= maxLatitude; latitude += spacing)
{
string text = ConvertCoordinate(latitude);
int pixelX = (canvas.Width - this.textFront.GetTextWidth(text)) / 2;
int pixelY = (int)(MercatorProjection.LatitudeToPixelY(latitude, mapSize) - topLeftPoint.Y) + this.textFront.GetTextHeight(text) / 2;
canvas.DrawText(text, pixelX, pixelY, this.textBack);
canvas.DrawText(text, pixelX, pixelY, this.textFront);
}
for (double longitude = minLongitude; longitude <= maxLongitude; longitude += spacing)
{
string text = ConvertCoordinate(longitude);
int pixelX = (int)(MercatorProjection.LongitudeToPixelX(longitude, mapSize) - topLeftPoint.X) - this.textFront.GetTextWidth(text) / 2;
int pixelY = (canvas.Height + this.textFront.GetTextHeight(text)) / 2;
canvas.DrawText(text, pixelX, pixelY, this.textBack);
canvas.DrawText(text, pixelX, pixelY, this.textFront);
}
}
}
public void RenderPointOfInterestSymbol(RenderContext renderContext, Display display, int priority, IBitmap symbol, PointOfInterest poi)
{
Point poiPosition = MercatorProjection.GetPixelAbsolute(poi.Position, renderContext.rendererJob.tile.MapSize);
renderContext.labels.Add(new SymbolContainer(poiPosition, display, priority, symbol));
}
public void RenderPointOfInterestCaption(RenderContext renderContext, Display display, int priority, string caption, float horizontalOffset, float verticalOffset, IPaint fill, IPaint stroke, Position position, int maxTextWidth, PointOfInterest poi)
{
Point poiPosition = MercatorProjection.GetPixelAbsolute(poi.Position, renderContext.rendererJob.tile.MapSize);
renderContext.labels.Add(this.graphicFactory.CreatePointTextContainer(poiPosition.Offset(horizontalOffset, verticalOffset), display, priority, caption, fill, stroke, null, position, maxTextWidth));
}
