Fixed some docs (#192)

using json = nlohmann::json;

// Calculates a rotation matrix from Euler angles

// in - euler[3]

// out - rotationMatrix[9]

void calculateRotationMatrixFromEuler(

    double euler[],

    double rotationMatrix[])

// uses a quaternion to calclate a rotation matrix.

// in - q[4]

// out - rotationMatrix[9]

void calculateRotationMatrixFromQuaternions(

    double q[4],

    double rotationMatrix[9])

  rotationMatrix[8] = -q[0] * q[0] - q[1] * q[1] + q[2] * q[2] + q[3] * q[3];

}

// Compue the distorted focal plane coordinate for a given image pixel

// in - line

// in - sample

// in - sampleOrigin - the origin of the ccd coordinate system relative to the top left of the ccd

// in - lineOrigin - the origin of the ccd coordinate system relative to the top left of the ccd

// in - sampleSumming

// in - startingSample - first ccd sample for the image

// in - iTransS[3] - the transformation from focal plane to ccd samples

// in - iTransL[3] - the transformation from focal plane to ccd lines

// out - natFocalPlane

void computeDistortedFocalPlaneCoordinates(

    const double& line,

    const double& sample,

};

// Define imaging ray in image space (In other words, create a look vector in camera space)

// in - undistortedFocalPlaneX

// in - undistortedFocalPlaneY

// in - zDirection - Either 1 or -1. The direction of the boresight

// in - focalLength

// out - cameraLook[3]

void createCameraLookVector(

    const double& undistortedFocalPlaneX,

    const double& undistortedFocalPlaneY,

  cameraLook[2] /= magnitude;

}

// convert a measurement

double metric_conversion(double val, std::string from, std::string to) {

    json typemap = {

      {"m", 0},

  return radius;

}

// Gets the type of distortion model from the isd. If none is specified defaults

// to transverse

DistortionType getDistortionModel(json isd, csm::WarningList *list) {

  json distoriton_subset = isd.at("optical_distortion");

using json = nlohmann::json;

// TODO all commented out expects are failing and need to either have updated numbers

// for the line scanner test cases, or we need to figure out why the line scanner

// is not honoring this functionality.

TEST_F(ConstVelocityLineScanSensorModel, State) {

   std::string modelState = sensorModel->getModelState();