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 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);
}
}
}
private void DrawScaleBar(ICanvas canvas, int scaleBarLength1, int scaleBarLength2, IPaint paint, float scale)
{
int maxScaleBarLength = Math.Max(scaleBarLength1, scaleBarLength2);
switch (scaleBarPosition)
{
case org.mapsforge.map.scalebar.MapScaleBar.ScaleBarPosition.BOTTOM_CENTER:
if (scaleBarLength2 == 0)
{
canvas.DrawLine((int)Math.Round((canvas.Width - maxScaleBarLength) * 0.5f), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), (int)Math.Round((canvas.Width + maxScaleBarLength) * 0.5f), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), paint);
canvas.DrawLine((int)Math.Round((canvas.Width - maxScaleBarLength) * 0.5f), (int)Math.Round(canvas.Height * 0.5f), (int)Math.Round((canvas.Width - maxScaleBarLength) * 0.5f), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), paint);
canvas.DrawLine((int)Math.Round((canvas.Width + maxScaleBarLength) * 0.5f), (int)Math.Round(canvas.Height * 0.5f), (int)Math.Round((canvas.Width + maxScaleBarLength) * 0.5f), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), paint);
}
else
{
canvas.DrawLine((int)Math.Round(STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(canvas.Height * 0.5f), (int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + maxScaleBarLength), (int)Math.Round(canvas.Height * 0.5f), paint);
canvas.DrawLine((int)Math.Round(STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(SCALE_BAR_MARGIN * scale), (int)Math.Round(STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), paint);
canvas.DrawLine((int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + scaleBarLength1), (int)Math.Round(SCALE_BAR_MARGIN * scale), (int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + scaleBarLength1), (int)Math.Round(canvas.Height * 0.5f), paint);
canvas.DrawLine((int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + scaleBarLength2), (int)Math.Round(canvas.Height * 0.5f), (int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + scaleBarLength2), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), paint);
}
break;
case org.mapsforge.map.scalebar.MapScaleBar.ScaleBarPosition.BOTTOM_LEFT:
if (scaleBarLength2 == 0)
{
canvas.DrawLine((int)Math.Round(STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), (int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + maxScaleBarLength), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), paint);
canvas.DrawLine((int)Math.Round(STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(canvas.Height * 0.5f), (int)Math.Round(STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), paint);
canvas.DrawLine((int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + maxScaleBarLength), (int)Math.Round(canvas.Height * 0.5f), (int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + maxScaleBarLength), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), paint);
}
else
{
canvas.DrawLine((int)Math.Round(STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(canvas.Height * 0.5f), (int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + maxScaleBarLength), (int)Math.Round(canvas.Height * 0.5f), paint);
canvas.DrawLine((int)Math.Round(STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(SCALE_BAR_MARGIN * scale), (int)Math.Round(STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), paint);
canvas.DrawLine((int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + scaleBarLength1), (int)Math.Round(SCALE_BAR_MARGIN * scale), (int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + scaleBarLength1), (int)Math.Round(canvas.Height * 0.5f), paint);
canvas.DrawLine((int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + scaleBarLength2), (int)Math.Round(canvas.Height * 0.5f), (int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + scaleBarLength2), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), paint);
}
break;
case org.mapsforge.map.scalebar.MapScaleBar.ScaleBarPosition.BOTTOM_RIGHT:
if (scaleBarLength2 == 0)
{
canvas.DrawLine((int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f - maxScaleBarLength), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), (int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), paint);
canvas.DrawLine((int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(canvas.Height * 0.5f), (int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), paint);
canvas.DrawLine((int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f - maxScaleBarLength), (int)Math.Round(canvas.Height * 0.5f), (int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f - maxScaleBarLength), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), paint);
}
else
{
canvas.DrawLine((int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(canvas.Height * 0.5f), (int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f - maxScaleBarLength), (int)Math.Round(canvas.Height * 0.5f), paint);
canvas.DrawLine((int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(SCALE_BAR_MARGIN * scale), (int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), paint);
canvas.DrawLine((int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f - scaleBarLength1), (int)Math.Round(SCALE_BAR_MARGIN * scale), (int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f - scaleBarLength1), (int)Math.Round(canvas.Height * 0.5f), paint);
canvas.DrawLine((int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f - scaleBarLength2), (int)Math.Round(canvas.Height * 0.5f), (int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f - scaleBarLength2), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), paint);
}
break;
case org.mapsforge.map.scalebar.MapScaleBar.ScaleBarPosition.TOP_CENTER:
if (scaleBarLength2 == 0)
{
canvas.DrawLine((int)Math.Round((canvas.Width - maxScaleBarLength) * 0.5f), (int)Math.Round(SCALE_BAR_MARGIN * scale), (int)Math.Round((canvas.Width + maxScaleBarLength) * 0.5f), (int)Math.Round(SCALE_BAR_MARGIN * scale), paint);
canvas.DrawLine((int)Math.Round((canvas.Width - maxScaleBarLength) * 0.5f), (int)Math.Round(SCALE_BAR_MARGIN * scale), (int)Math.Round((canvas.Width - maxScaleBarLength) * 0.5f), (int)Math.Round(canvas.Height * 0.5f), paint);
canvas.DrawLine((int)Math.Round((canvas.Width + maxScaleBarLength) * 0.5f), (int)Math.Round(SCALE_BAR_MARGIN * scale), (int)Math.Round((canvas.Width + maxScaleBarLength) * 0.5f), (int)Math.Round(canvas.Height * 0.5f), paint);
}
else
{
canvas.DrawLine((int)Math.Round(STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(canvas.Height * 0.5f), (int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + maxScaleBarLength), (int)Math.Round(canvas.Height * 0.5f), paint);
canvas.DrawLine((int)Math.Round(STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(SCALE_BAR_MARGIN * scale), (int)Math.Round(STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), paint);
canvas.DrawLine((int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + scaleBarLength1), (int)Math.Round(SCALE_BAR_MARGIN * scale), (int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + scaleBarLength1), (int)Math.Round(canvas.Height * 0.5f), paint);
canvas.DrawLine((int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + scaleBarLength2), (int)Math.Round(canvas.Height * 0.5f), (int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + scaleBarLength2), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), paint);
}
break;
case org.mapsforge.map.scalebar.MapScaleBar.ScaleBarPosition.TOP_LEFT:
if (scaleBarLength2 == 0)
{
canvas.DrawLine((int)Math.Round(STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(SCALE_BAR_MARGIN * scale), (int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + maxScaleBarLength), (int)Math.Round(SCALE_BAR_MARGIN * scale), paint);
canvas.DrawLine((int)Math.Round(STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(SCALE_BAR_MARGIN * scale), (int)Math.Round(STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(canvas.Height * 0.5f), paint);
canvas.DrawLine((int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + maxScaleBarLength), (int)Math.Round(SCALE_BAR_MARGIN * scale), (int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + maxScaleBarLength), (int)Math.Round(canvas.Height * 0.5f), paint);
}
else
{
canvas.DrawLine((int)Math.Round(STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(canvas.Height * 0.5f), (int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + maxScaleBarLength), (int)Math.Round(canvas.Height * 0.5f), paint);
canvas.DrawLine((int)Math.Round(STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(SCALE_BAR_MARGIN * scale), (int)Math.Round(STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), paint);
canvas.DrawLine((int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + scaleBarLength1), (int)Math.Round(SCALE_BAR_MARGIN * scale), (int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + scaleBarLength1), (int)Math.Round(canvas.Height * 0.5f), paint);
canvas.DrawLine((int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + scaleBarLength2), (int)Math.Round(canvas.Height * 0.5f), (int)Math.Round(STROKE_EXTERNAL * scale * 0.5f + scaleBarLength2), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), paint);
}
break;
case org.mapsforge.map.scalebar.MapScaleBar.ScaleBarPosition.TOP_RIGHT:
if (scaleBarLength2 == 0)
{
canvas.DrawLine((int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f - maxScaleBarLength), (int)Math.Round(SCALE_BAR_MARGIN * scale), (int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(SCALE_BAR_MARGIN * scale), paint);
canvas.DrawLine((int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(SCALE_BAR_MARGIN * scale), (int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(canvas.Height * 0.5f), paint);
canvas.DrawLine((int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f - maxScaleBarLength), (int)Math.Round(SCALE_BAR_MARGIN * scale), (int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f - maxScaleBarLength), (int)Math.Round(canvas.Height * 0.5f), paint);
}
else
{
canvas.DrawLine((int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(canvas.Height * 0.5f), (int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f - maxScaleBarLength), (int)Math.Round(canvas.Height * 0.5f), paint);
canvas.DrawLine((int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(SCALE_BAR_MARGIN * scale), (int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), paint);
canvas.DrawLine((int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f - scaleBarLength1), (int)Math.Round(SCALE_BAR_MARGIN * scale), (int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f - scaleBarLength1), (int)Math.Round(canvas.Height * 0.5f), paint);
canvas.DrawLine((int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f - scaleBarLength2), (int)Math.Round(canvas.Height * 0.5f), (int)Math.Round(canvas.Width - STROKE_EXTERNAL * scale * 0.5f - scaleBarLength2), (int)Math.Round(canvas.Height - SCALE_BAR_MARGIN * scale), paint);
}
break;
}
}