public static CloudJs Load(string dir)
{
string text = "";
if (Application.platform == RuntimePlatform.Android)
{
var loadingRequest = UnityWebRequest.Get(dir);
loadingRequest.SendWebRequest();
while (!loadingRequest.isDone)
{
if (loadingRequest.isHttpError || loadingRequest.isNetworkError)
{
break;
}
}
text = loadingRequest.downloadHandler.text;
}
else
{
text = File.ReadAllText(dir);
}
CloudJs parsed = default;
parsed = parse(text);
return(parsed);
}
public Potree(string dir)
{
Directory = dir;
Info = CloudJs.Load(dir + @"\cloud.js");
DataDirectory = Directory + '/' + Info.OctreeDir + '/';
ref CloudJs info = ref Info;
private static CloudJs parse(string str)
{
CloudJs cloudJs = new CloudJs();
Json json = Json.Parse(str);
JsonDict dict = json.Get <JsonDict>();
JsonDict bounds = dict["boundingBox"].Get <JsonDict>();
JsonDict tightBounds = dict["tightBoundingBox"].Get <JsonDict>();
JsonList pointAttributes = dict["pointAttributes"].Get <JsonList>();
string v = dict["version"].Get <string>();
cloudJs.OctreeDir = dict["octreeDir"].Get <string>();
cloudJs.Projection = dict["projection"].Get <string>();
cloudJs.Points = (ulong)(long)dict["points"].Get <JsonLong>();
cloudJs.Bounds.min = new Vector3(
(float)bounds["lx"].Get <JsonDouble>(),
(float)bounds["ly"].Get <JsonDouble>(),
(float)bounds["lz"].Get <JsonDouble>()
);
cloudJs.Bounds.max = new Vector3(
(float)bounds["ux"].Get <JsonDouble>(),
(float)bounds["uy"].Get <JsonDouble>(),
(float)bounds["uz"].Get <JsonDouble>()
);
cloudJs.TightBounds.min = new Vector3(
(float)tightBounds["lx"].Get <JsonDouble>(),
(float)tightBounds["ly"].Get <JsonDouble>(),
(float)tightBounds["lz"].Get <JsonDouble>()
);
cloudJs.TightBounds.max = new Vector3(
(float)tightBounds["ux"].Get <JsonDouble>(),
(float)tightBounds["uy"].Get <JsonDouble>(),
(float)tightBounds["uz"].Get <JsonDouble>()
);
cloudJs.Spacing = (float)dict["spacing"].Get <JsonDouble>();
cloudJs.Scale = (float)dict["scale"].Get <JsonDouble>();
cloudJs.StepSize = (int)dict["hierarchyStepSize"].Get <JsonLong>();
cloudJs.PointAttributes = new List <PointAttributeDescriptor>(pointAttributes.Count);
int offset = 0;
if (v == "1.7")
{
cloudJs.Version = VersionNumber.v1_7;
for (int i = 0; i < pointAttributes.Count; ++i)
{
PointAttributeDescriptor attribute = new PointAttributeDescriptor();
if (pointAttributes[i].Get <string>().ToUpper() == "POSITION_CARTESIAN")
{
attribute.AttributeType = AttributeType.POSITION_CARTESIAN;
attribute.Size = 12;
attribute.ElementCount = 3;
attribute.ElementSize = 4;
attribute.DataType = DataType.Int32;
attribute.Offset = offset;
}
else if (pointAttributes[i].Get <string>().ToUpper() == "COLOR_PACKED")
{
attribute.AttributeType = AttributeType.COLOR;
attribute.Size = 4;
attribute.ElementCount = 4;
attribute.ElementSize = 1;
attribute.DataType = DataType.UInt8;
attribute.Offset = offset;
}
else if (pointAttributes[i].Get <string>().ToUpper() == "INTENSITY")
{
attribute.AttributeType = AttributeType.INTENSITY;
attribute.Size = 2;
attribute.ElementCount = 1;
attribute.ElementSize = 2;
attribute.DataType = DataType.UInt16;
attribute.Offset = offset;
}
else if (pointAttributes[i].Get <string>().ToUpper() == "CLASSIFICATION")
{
attribute.AttributeType = AttributeType.CLASSIFICATION;
attribute.Size = 1;
attribute.ElementCount = 1;
attribute.ElementSize = 1;
attribute.DataType = DataType.UInt8;
attribute.Offset = offset;
}
else
{
throw new Exception("Unsupported attributed type. Supported attributes are: COLOR_PACKED, INTENSITY, CLASSIFICATION");
}
offset += attribute.Size;
cloudJs.PointAttributes.Add(attribute);
}
}
else if (v == "1.8")
{
cloudJs.Version = VersionNumber.v1_8;
for (int i = 0; i < pointAttributes.Count; ++i)
{
PointAttributeDescriptor attribute = new PointAttributeDescriptor();
JsonDict attrDict = pointAttributes[i].Get <JsonDict>();
if (attrDict["name"].Get <string>().ToUpper() == "POSITION_CARTESIAN")
{
attribute.AttributeType = AttributeType.POSITION_CARTESIAN;
attribute.Offset = offset;
}
else if (attrDict["name"].Get <string>().ToUpper() == "RGBA")
{
attribute.AttributeType = AttributeType.COLOR;
attribute.Offset = offset;
}
else if (attrDict["name"].Get <string>().ToUpper() == "INTENSITY")
{
attribute.AttributeType = AttributeType.INTENSITY;
attribute.Offset = offset;
}
else if (attrDict["name"].Get <string>().ToUpper() == "CLASSIFICATION")
{
attribute.AttributeType = AttributeType.CLASSIFICATION;
attribute.Offset = offset;
}
else
{
throw new Exception("Unsupported attributed type. Supported attributes are: RGBA, INTENSITY, CLASSIFICATION");
}
attribute.Size = (int)attrDict["size"].Get <JsonLong>();
attribute.ElementCount = (int)attrDict["elements"].Get <JsonLong>();
attribute.ElementSize = (int)attrDict["elementSize"].Get <JsonLong>();
if (attrDict["type"].Get <string>() == "int32")
{
attribute.DataType = DataType.Int32;
}
else if (attrDict["type"].Get <string>() == "uint16")
{
attribute.DataType = DataType.UInt16;
}
else if (attrDict["type"].Get <string>() == "uint8")
{
attribute.DataType = DataType.UInt8;
}
else if (attrDict["type"].Get <string>() == "double")
{
attribute.DataType = DataType.Double;
}
cloudJs.PointAttributes.Add(attribute);
offset += attribute.Size;
}
}
else if (v == "2.0")
{
cloudJs.Version = VersionNumber.v2_0;
throw new Exception("PotreeConverter version not supported.");
}
else
{
throw new Exception("PotreeConverter version not supported.");
}
return(cloudJs);
}
