public vec3 GetNodeCoords(OsmNode n)
{
vec3 v = Utils.LonLatToXYZ(n.lon, n.lat);
v -= b;
Utils.RotateVec2(centerLon, ref v.x, ref v.z);
Utils.RotateVec2((-90 + centerLat), ref v.y, ref v.z);
Utils.RotateVec2(Settings.yAndgle, ref v.x, ref v.z);
v.y = 0;
return(v);
}
public Polygon[] GetBuildingPolys(OsmBuilding bd)
{
Polygon p = new Polygon();
p.verts = new vec3[bd.nodeIds.Length - 1];
for (int j = 0; j < bd.nodeIds.Length - 1; j++)
{
OsmNode n1 = nodes[bd.nodeIds[j]];
vec3 v1 = GetNodeCoords(n1);
p.verts[j] = v1;
}
p.ForceCCW();
p = p.CollinearSimplify(0.3);
//return new Polygon[] { p };
return(ConvexPartition(p).ToArray());
}
public bool Load(string filename)
{
XmlDocument osm = new XmlDocument();
osm.Load(filename);
XmlElement root = osm.DocumentElement;
Console.Out.WriteLine("version " + root.Attributes.GetNamedItem("version").InnerText);
XmlNodeList boundsl = root.GetElementsByTagName("bounds");
if (boundsl.Count != 1)
{
Console.Out.WriteLine("bounds node count " + boundsl.Count);
return(true);
}
else
{
double minlat = double.Parse(boundsl[0].Attributes.GetNamedItem("minlat").Value, NumberFormatInfo.InvariantInfo);
double maxlat = double.Parse(boundsl[0].Attributes.GetNamedItem("maxlat").Value, NumberFormatInfo.InvariantInfo);
double minlon = double.Parse(boundsl[0].Attributes.GetNamedItem("minlon").Value, NumberFormatInfo.InvariantInfo);
double maxlon = double.Parse(boundsl[0].Attributes.GetNamedItem("maxlon").Value, NumberFormatInfo.InvariantInfo);
bounds = new Rect2D(minlon, minlat, maxlon - minlon, maxlat - minlat);
centerLon = bounds.x + bounds.w * 0.5;
centerLat = bounds.y + bounds.h * 0.5;
b = Utils.LonLatToXYZ(centerLon, centerLat);
Console.Out.WriteLine("Bounds: (" + bounds.x + " x " + bounds.y + ") (" + bounds.w + " x " + bounds.h + ")");
}
foreach (XmlNode n in root)
{
//Console.Out.WriteLine("node name " + n.Name);
if (n.Name == "node")
{
if (n.Attributes.Count > 0)
{
long id = long.Parse(n.Attributes.GetNamedItem("id").Value);
OsmNode tNode = new OsmNode();
tNode.id = id;
tNode.lat = double.Parse(n.Attributes.GetNamedItem("lat").Value, NumberFormatInfo.InvariantInfo);
tNode.lon = double.Parse(n.Attributes.GetNamedItem("lon").Value, NumberFormatInfo.InvariantInfo);
nodes[id] = tNode;
}
}
else if (n.Name == "way")
{
long id = long.Parse(n.Attributes.GetNamedItem("id").Value);
bool building = false;
bool buildingPart = false;
float height = 0;
float min_height = 0;
float ele = 0;
int levels = 0;
List <long> refIds = new List <long>();
foreach (XmlNode cn in n)
{
if (cn.Name == "tag")
{
//<tag k="building" v="yes" />
//<tag k="building" v="commercial"/>
string k = cn.Attributes.GetNamedItem("k").Value;
if (k == "building")
{
building = true;
//cn.Attributes.GetNamedItem("v").Value;
}
//<tag k="building:part" v="yes"/>
else if (k == "building:part")
{
buildingPart = true;
}
//<tag k="height" v="160"/>
else if (k == "height")
{
height = float.Parse(cn.Attributes.GetNamedItem("v").Value, NumberFormatInfo.InvariantInfo);
}
else if (k == "min_height")
{
min_height = float.Parse(cn.Attributes.GetNamedItem("v").Value, NumberFormatInfo.InvariantInfo);
}
else if (k == "ele")
{
ele = float.Parse(cn.Attributes.GetNamedItem("v").Value, NumberFormatInfo.InvariantInfo);
}
//<tag k="building:levels" v="6"/>
//<tag k="building:levels" v="13C"/>
//<tag k="building:levels" v="1, 1M, 2M, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25"/>
else if (k == "building:levels")
{
try
{
levels = int.Parse(cn.Attributes.GetNamedItem("v").Value);
}
catch { }
}
//<tag k="highway" v="secondary"/>
//<tag k="highway" v="pedestrian"/>
//<tag k="building:colour" v="#C7C2AF"/>
//<tag k="building:material" v="glass"/>
//<tag k="roof:material" v="concrete"/>
//<tag k="roof:shape" v="flat"/>
}
else if (cn.Name == "nd")
{
long refId = long.Parse(cn.Attributes.GetNamedItem("ref").Value);
refIds.Add(refId);
}
}
if (building || buildingPart)
{
//Console.Out.WriteLine("building: id " + id + " height " + height + " levels " + levels + " nodes count " + refIds.Count);
if (levels == 0)
{
levels = 1;
}
if (height == 0)
{
height = levels * levelHeight;
}
OsmBuilding bd = new OsmBuilding();
bd.id = id;
bd.levels = levels;
bd.height = height;
bd.min_height = min_height;
bd.ele = ele;
bd.nodeIds = refIds.ToArray();
bd.part = buildingPart;
buildings.Add(bd);
}
}
else if (n.Name == "relation")
{
bool building = false;
List <long> partIds = new List <long>();
long outlineId = -1;
foreach (XmlNode cn in n)
{
if (cn.Name == "tag")
{
string k = cn.Attributes.GetNamedItem("k").Value;
if (k == "type")
{
if (cn.Attributes.GetNamedItem("v").Value == "building")
{
building = true;
}
}
//else if (k == "name")
//{
// string name = cn.Attributes.GetNamedItem("v").Value;
//}
}
else if (cn.Name == "member")
{
string type = cn.Attributes.GetNamedItem("type").Value;
if (type == "way")
{
string role = cn.Attributes.GetNamedItem("role").Value;
long refId = long.Parse(cn.Attributes.GetNamedItem("ref").Value);
if (role == "outline")
{
outlineId = refId;
}
else if (role == "part")
{
partIds.Add(refId);
}
}
}
}
if (building)
{
for (int i = 0; i < buildings.Count; i++)
{
if (buildings[i].id == outlineId)
{
OsmBuilding b = buildings[i];
if (!b.part)
{
b.outline = true;
if (b.ele > 0)
{
b.height = b.ele;
}
else
{
b.height = levelHeight;
}
buildings[i] = b;
}
break;
}
}
}
}
}
Console.Out.WriteLine("Node count " + nodes.Count);
Console.Out.WriteLine("Building count " + buildings.Count);
return(false);
}