public Task RenderDataAsync(List <Geometry> data, Dictionary <string, DrawingStyle> styles, ViewInfo viewInfo, StyleColor?backgroundColor)
{
return(Task.Run(() =>
{
RenderData(data, styles, viewInfo, backgroundColor);
}));
}
public void RenderData(List <Geometry> data, Dictionary <string, DrawingStyle> styles, ViewInfo viewInfo, StyleColor?backgroundColor)
{
try
{
if (_bitmap == null || _bitmap.Width != viewInfo.Width || _bitmap.Height != viewInfo.Height)
{
_bitmap = new Bitmap(viewInfo.Width, viewInfo.Height);
}
using (Graphics g = Graphics.FromImage(_bitmap))
{
_backgroundColor = backgroundColor;
var background = (backgroundColor.HasValue) ? backgroundColor.Value.ToDrawingColor() : Color.Transparent;
g.Clear(background);
g.Clip = new Region(new Rectangle(0, 0, viewInfo.Width, viewInfo.Height));
if (!_isHighSpeed)
{
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
}
else
{
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighSpeed;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighSpeed;
}
if (data != null)
{
foreach (var geo in data)
{
DrawGeometery(geo, styles, viewInfo, g);
}
}
}
}
catch (Exception ex)
{
var t = "";
}
}
public Task RenderDataAsync(List <Geometry> data, ViewInfo viewInfo, StyleColor?backgroundColor)
{
return(RenderDataAsync(data, new Dictionary <string, DrawingStyle>(), viewInfo, backgroundColor));
}
public Task RenderDataAsync(List <Geometry> data, Dictionary <string, ShapeStyle> styles, ViewInfo viewInfo)
{
return(RenderDataAsync(data, ConvertStyles(styles), viewInfo, null));
}
public Task RenderDataAsync(SpatialDataSet data, ViewInfo viewInfo, StyleColor?backgroundColor)
{
return(RenderDataAsync(data.Geometries, ConvertStyles(data.Styles), viewInfo, backgroundColor));
}
public Task RenderDataAsync(List <Geometry> data, ViewInfo viewInfo)
{
return(RenderDataAsync(data, new Dictionary <string, DrawingStyle>(), viewInfo, null));
}
public Task RenderDataAsync(SpatialDataSet data, ViewInfo viewInfo)
{
return(RenderDataAsync(data.Geometries, data.Styles, viewInfo));
}
private void DrawPoint(Point point, DrawingStyle style, ViewInfo viewInfo, Graphics g)
{
DrawPoint(viewInfo.LatLongToPointF(point.Coordinate), style, g);
}
private void DrawGeometery(Geometry geom, Dictionary <string, DrawingStyle> styles, ViewInfo viewInfo, Graphics g)
{
DrawingStyle s = null;
if (styles != null && !string.IsNullOrEmpty(geom.StyleKey) && styles.ContainsKey(geom.StyleKey))
{
s = styles[geom.StyleKey];
}
else if (_defaultStyle != null)
{
s = _defaultStyle;
}
DrawGeometery(geom, s, viewInfo, g);
}
