internal static FactorAndSpeed FactorAndSpeed(IAttributeCollection attributes,
Whitelist whitelist)
{
if (attributes == null || attributes.Count == 0)
{
return(Itinero.Profiles.FactorAndSpeed.NoFactor);
}
string highway = null;
if (attributes.TryGetValue("highway", out highway))
{
whitelist.Add("highway");
}
string foot = null;
if (attributes.TryGetValue("foot", out foot))
{
if (foot == "no" || foot == "0")
{
return(Itinero.Profiles.FactorAndSpeed.NoFactor);
}
whitelist.Add("foot");
}
string footway;
if (attributes.TryGetValue("footway", out footway))
{
whitelist.Add("footway");
}
var result = new FactorAndSpeed();
var speed = 0.0f;
short direction = 0;
var canstop = true;
if (String.IsNullOrEmpty(highway))
{
if (!String.IsNullOrEmpty(foot))
{
highway = "footway";
}
else
{
return(Itinero.Profiles.FactorAndSpeed.NoFactor);
}
}
//get default speed profiles
var highway_speed = SpeedProfiles.ContainsKey(highway) ? (int?)SpeedProfiles[highway] : null;
if (highway_speed != null)
{
speed = highway_speed.Value;
direction = 0;
canstop = true;
}
else
{
return(Itinero.Profiles.FactorAndSpeed.NoFactor);
}
if (CanAccess(attributes) == false || speed == 0)
{
return(Itinero.Profiles.FactorAndSpeed.NoFactor);
}
result.SpeedFactor = 1.0f / (speed / 3.6f); // 1/m/s
result.Value = result.SpeedFactor;
result.Direction = direction;
if (!canstop)
{
result.Direction += 3;
}
return(result);
}
internal static FactorAndSpeed FactorAndSpeed(IAttributeCollection attributes,
Whitelist whitelist)
{
if (attributes == null || attributes.Count == 0)
{
return(Profiles.FactorAndSpeed.NoFactor);
}
string highway = null;
if (attributes.TryGetValue("highway", out highway))
{
whitelist.Add("highway");
}
var result = new FactorAndSpeed();
var speed = 0.0f;
short direction = 0;
var canstop = true;
//set highway to ferry when ferry.
string route = null;
if (attributes.TryGetValue("route", out route))
{
whitelist.Add("route");
}
if (route == "ferry")
{
highway = "ferry";
}
if (String.IsNullOrEmpty(highway))
{
return(Itinero.Profiles.FactorAndSpeed.NoFactor);
}
//get default speed profiles
var highway_speed = _speedProfiles.ContainsKey(highway) ? (int?)_speedProfiles[highway] : null;
if (highway_speed != null)
{
speed = highway_speed.Value;
direction = 0;
canstop = true;
if (highway == "motorway" ||
highway == "motorway_link")
{
canstop = false;
}
}
else
{
return(Itinero.Profiles.FactorAndSpeed.NoFactor);
}
if (CanAccess(attributes) == false)
{
return(Itinero.Profiles.FactorAndSpeed.NoFactor);
}
//get maxspeed if any.
string maxSpeed = null;
if (attributes.TryGetValue("maxspeed", out maxSpeed))
{
whitelist.Add("maxspeed");
float lspeed;
if (float.TryParse(maxSpeed, out lspeed))
{
speed = lspeed * 0.75f;
}
}
//get maxweight and maxwidth constraints if any
var maxweight = 0.0f;
var maxwidth = 0.0f;
string maxWeightString = null;
if (attributes.TryGetValue("maxweight", out maxWeightString))
{
whitelist.Add("maxweight");
float.TryParse(maxWeightString, out maxweight);
}
string maxWidthString = null;
if (attributes.TryGetValue("maxwidth", out maxWidthString))
{
whitelist.Add("maxwidth");
float.TryParse(maxWidthString, out maxwidth);
}
if (maxwidth != 0 || maxweight != 0)
{
result.Constraints = new[]
{ maxweight, maxwidth };
}
//get directional information
String junction = null;
if (attributes.TryGetValue("junction", out junction))
{
whitelist.Add("junction");
if (junction == "roundabout")
{
direction = 1;
}
}
var ldirection = IsOneway(attributes, whitelist, "oneway");
if (ldirection != null)
{
direction = ldirection.Value;
}
if (speed == 0)
{
return(Itinero.Profiles.FactorAndSpeed.NoFactor);
}
result.SpeedFactor = 1.0f / (speed / 3.6f); // 1/m/s
result.Value = result.SpeedFactor;
result.Direction = direction;
if (!canstop)
{
result.Direction += 3;
}
return(result);
}
