private void LoadJsonData(TextReader jsonReader)
{
try
{
JObject jsonData = JObject.Load(new JsonTextReader(jsonReader));
JToken collections = jsonData["l"] ?? jsonData["collections"];
JToken collection = collections.Values().First();
int numCoordSystems = collection["_num_coord_systems"].Value<int>();
CoordinateSystems = new CoordinateSystem[numCoordSystems];
JToken coordSystems = collection["x"] ?? collection["coord_systems"];
for (int id = 0; id < numCoordSystems; id++)
{
CoordinateSystems[id] = new CoordinateSystem(id);
JToken coordSystem = coordSystems[Convert.ToString(id)];
JToken pointcloud = coordSystem["k"] ?? coordSystem["pointcloud"];
if (pointcloud != null)
{
string s = pointcloud[0].Value<string>();
if (!string.IsNullOrEmpty(s))
{
JToken binFileCount = pointcloud[1];
CoordinateSystems[id].PointCloud = new PointCloud(id, binFileCount.Value<int>());
}
}
JToken projectors = coordSystem["r"] ?? coordSystem["projectors"];
List<CameraParameters> cameraParameterList = new List<CameraParameters>();
foreach (JToken projector in projectors.Values())
{
string imageName = ((JProperty)projector.Parent).Name;
JToken projectorParameters = projector["j"] ?? projector["image_position_rotation_aspect_focallength"];
//int imageId = projectorParameters[0].Value<int>(); // this is out of all the PhotoSynth images, i.e. the thumbs or distort directory
int imageId = int.Parse(imageName); // this is out of the working coordinate system, i.e. /pmvs/visualize
//string sImageId = projectorParameters[0].Value<string>() + "_or_" + int.Parse(imageName);
CameraPosition position = new CameraPosition()
{
X = projectorParameters[1].Value<double>(),
Y = projectorParameters[2].Value<double>(),
Z = projectorParameters[3].Value<double>()
};
CameraRotation rotation = CameraRotation.FromNormalizedQuaternion(
projectorParameters[4].Value<double>(),
projectorParameters[5].Value<double>(),
projectorParameters[6].Value<double>());
double aspectRatio = projectorParameters[7].Value<double>();
double focalLength = projectorParameters[8].Value<double>();
JToken radialDistortion = projector["f"] ?? projector["radial_distortion"];
CameraDistortion distortion;
if (radialDistortion != null)
distortion = new CameraDistortion()
{
K1 = radialDistortion[0].Value<double>(),
K2 = radialDistortion[1].Value<double>()
};
else
distortion = new CameraDistortion();
cameraParameterList.Add(new CameraParameters(imageId, position, rotation, aspectRatio, focalLength, distortion));
}
cameraParameterList.Sort(new Comparison<CameraParameters>((cp1, cp2) => cp1.ImageId.CompareTo(cp2.ImageId)));
CoordinateSystems[id].CameraParameterList = new CameraParameterList(cameraParameterList);
}
}
catch (Exception e)
{
if (e is JsonReaderException)
throw new SynthDataLoadException("An error occurred while processing synth data.", e);
throw;
}
}
public CameraParameters(int imageId, CameraPosition position, CameraRotation rotation, double aspectRatio, double focalLength, CameraDistortion radialDistortion)
{
ImageId = imageId;
Position = position;
Rotation = rotation;
AspectRatio = aspectRatio;
FocalLength = focalLength;
RadialDistortion = radialDistortion;
}