/// <summary>
/// Returns true if the given object is of the given type.
/// </summary>
/// <param name="osmGeo"></param>
/// <param name="types"></param>
/// <returns></returns>
public static bool IsOfType(this CompleteOsmGeo osmGeo, MapCSSTypes types)
{
string area = string.Empty;
switch (types)
{
case MapCSSTypes.Node:
return(osmGeo.Type == CompleteOsmType.Node);
case MapCSSTypes.Way:
return(osmGeo.Type == CompleteOsmType.Way);
case MapCSSTypes.Relation:
return(osmGeo.Type == CompleteOsmType.Relation);
case MapCSSTypes.Line:
if (osmGeo.Type == CompleteOsmType.Way)
{ // the type is way way. now check for a line.
var way = (osmGeo as CompleteWay);
if (way != null &&
way.Nodes[0] == way.Nodes[way.Nodes.Count - 1])
{ // first node is the same as the last one.
if (way.Tags != null &&
way.Tags.TryGetValue("area", out area) &&
area == "yes")
{ // oeps, an area.
return(false);
}
return(true);
}
else
{ // first node is different from the last one.
return(true); // even if there is an area=yes tag this cannot be an area.
}
}
break;
case MapCSSTypes.Area:
if (osmGeo.Type == CompleteOsmType.Way)
{ // the type is way way. now check for a line.
var way = (osmGeo as CompleteWay);
if (way != null &&
way.Nodes != null &&
(way.Nodes.Count > 2 && (way.Nodes[0] == way.Nodes[way.Nodes.Count - 1])))
{ // first node is the same as the last one.
return(true);
}
}
return(false);
default:
throw new ArgumentOutOfRangeException("types");
}
return(false);
}
/// <summary>
/// Returns true if the given object is of the given type.
/// </summary>
/// <param name="osmGeo"></param>
/// <param name="types"></param>
/// <returns></returns>
public static bool IsOfType(this CompleteOsmGeo osmGeo, MapCSSTypes types)
{
string area = string.Empty;
switch (types)
{
case MapCSSTypes.Node:
return osmGeo.Type == CompleteOsmType.Node;
case MapCSSTypes.Way:
return osmGeo.Type == CompleteOsmType.Way;
case MapCSSTypes.Relation:
return osmGeo.Type == CompleteOsmType.Relation;
case MapCSSTypes.Line:
if (osmGeo.Type == CompleteOsmType.Way)
{ // the type is way way. now check for a line.
var way = (osmGeo as CompleteWay);
if (way != null &&
way.Nodes[0] == way.Nodes[way.Nodes.Count - 1])
{ // first node is the same as the last one.
if (way.Tags != null &&
way.Tags.TryGetValue("area", out area) &&
area == "yes")
{ // oeps, an area.
return false;
}
return true;
}
else
{ // first node is different from the last one.
return true; // even if there is an area=yes tag this cannot be an area.
}
}
break;
case MapCSSTypes.Area:
if (osmGeo.Type == CompleteOsmType.Way)
{ // the type is way way. now check for a line.
var way = (osmGeo as CompleteWay);
if (way != null &&
way.Nodes != null &&
(way.Nodes.Count > 2 && (way.Nodes[0] == way.Nodes[way.Nodes.Count - 1])))
{ // first node is the same as the last one.
return true;
}
}
return false;
default:
throw new ArgumentOutOfRangeException("types");
}
return false;
}
/// <summary>
/// Returns true if the given object is of the given type.
/// </summary>
/// <param name="vtf"></param>
/// <param name="types"></param>
/// <returns></returns>
public static bool IsOfType(this Feature vtf, MapCSSTypes types)
{
string area = string.Empty;
switch (types)
{
case MapCSSTypes.Node:
return(vtf.GeometryType == GeometryType.Point);
case MapCSSTypes.Way:
return(vtf.GeometryType == GeometryType.LineString);
case MapCSSTypes.Relation:
// TODO: We don't have such elements in databases
// return vtf.GeometryType == CompleteOsmType.Relation;
case MapCSSTypes.Line:
if (vtf.GeometryType == GeometryType.LineString)
{ // the type is way way. now check for a line.
var way = vtf.Geometry.First();
if (way != null &&
way.Points[0] == way.Points[way.Points.Count - 1])
{ // first node is the same as the last one.
if (vtf.Tags != null &&
vtf.Tags.TryGetValue("area", out area) &&
area == "yes")
{ // oeps, an area.
return(false);
}
return(true);
}
else
{ // first node is different from the last one.
return(true); // even if there is an area=yes tag this cannot be an area.
}
}
break;
case MapCSSTypes.Area:
return(vtf.GeometryType == GeometryType.Polygon);
default:
throw new ArgumentOutOfRangeException("types");
}
return(false);
}
