private static bool IsTouchingTakingIntoAccountSymbolStyles(
Point point, IFeature feature, IStyle layerStyle, double resolution, ISymbolCache symbolCache)
{
if (feature.Geometry is Point)
{
var styles = new List <IStyle>();
if (layerStyle != null)
{
styles.Add(layerStyle);
}
styles.AddRange(feature.Styles);
foreach (var style in styles)
{
var symbolStyle = style as SymbolStyle;
if (symbolStyle == null)
{
Logger.Log(LogLevel.Warning, $"Feature info not supported for {style.GetType()}");
continue; //todo: add support for other types
}
var scale = symbolStyle.SymbolScale;
var size = symbolStyle.BitmapId >= 0
? symbolCache.GetSize(symbolStyle.BitmapId)
: new Size(SymbolStyle.DefaultWidth, SymbolStyle.DefaultHeight);
// Symbols allways drawn around the center (* 0.5 instead of / 2)
var factor = resolution * scale;
var marginX = size.Width * 0.5 * factor;
var marginY = size.Height * 0.5 * factor;
var box = feature.Geometry.GetBoundingBox();
box = box.Grow(marginX, marginY);
if (symbolStyle.SymbolOffset.IsRelative)
{
box.Offset(size.Width * symbolStyle.SymbolOffset.X * factor, size.Height * symbolStyle.SymbolOffset.Y * factor);
}
else
{
box.Offset(symbolStyle.SymbolOffset.X * factor, symbolStyle.SymbolOffset.Y * factor);
}
if (box.Contains(point))
{
return(true);
}
}
}
return(feature.Geometry.Contains(point));
}
private static bool IsTouchingTakingIntoAccountSymbolStyles(Point point, IFeature feature, IStyle layerStyle,
double resolution, ISymbolCache symbolCache, int margin = 0)
{
var styles = new List <IStyle>();
styles.AddRange(ToCollection(layerStyle));
styles.AddRange(feature.Styles);
var marginInWorldUnits = margin * resolution;
if (feature.Geometry is Point)
{
foreach (var style in styles)
{
var localStyle = HandleThemeStyle(feature, style);
if (localStyle is SymbolStyle symbolStyle)
{
var scale = symbolStyle.SymbolScale;
var size = symbolStyle.BitmapId >= 0
? symbolCache.GetSize(symbolStyle.BitmapId)
: new Size(SymbolStyle.DefaultWidth, SymbolStyle.DefaultHeight);
// Symbols allways drawn around the center (* 0.5 instead of / 2)
var factor = resolution * scale;
var marginX = size.Width * 0.5 * factor;
var marginY = size.Height * 0.5 * factor;
var box = feature.Geometry.BoundingBox;
box = box.Grow(marginX, marginY);
if (symbolStyle.SymbolOffset.IsRelative)
{
box.Offset(
size.Width * symbolStyle.SymbolOffset.X * factor,
size.Height * symbolStyle.SymbolOffset.Y * factor);
}
else
{
box.Offset(symbolStyle.SymbolOffset.X * factor, symbolStyle.SymbolOffset.Y * factor);
}
if (box.Distance(point) <= marginInWorldUnits)
{
return(true);
}
}
else if (localStyle is VectorStyle)
{
var marginX = SymbolStyle.DefaultWidth * 0.5 * resolution;
var marginY = SymbolStyle.DefaultHeight * 0.5 * resolution;
var box = feature.Geometry.BoundingBox;
box = box.Grow(marginX, marginY);
if (box.Distance(point) <= marginInWorldUnits)
{
return(true);
}
}
else
{
if (!(localStyle is LabelStyle)) // I don't intend to support label click, so don't warn
{
Logger.Log(LogLevel.Warning, $"Feature info not supported for points with {localStyle.GetType()}");
}
}
}
}
else if (feature.Geometry is LineString || feature.Geometry is MultiLineString)
{
foreach (var style in styles)
{
var localStyle = HandleThemeStyle(feature, style);
if (localStyle is VectorStyle symbolStyle)
{
var lineWidthInWorldUnits = symbolStyle.Line.Width * resolution * 0.5;
if (feature.Geometry.Distance(point) <= lineWidthInWorldUnits + marginInWorldUnits)
{
return(true);
}
}
else
{
Logger.Log(LogLevel.Warning, $"Feature info not supported for lines with {localStyle.GetType()}");
}
}
}
else
{
return(feature.Geometry.Distance(point) <= marginInWorldUnits);
}
return(false);
}