KeyError: 'voxel_coordinate_XYZ_mm' in ECHO-VMAT/examples /echo_vmat_portpy.ipynb notebook #1
Description
Hi there,
I'm trying to get started with using your ECHO-VMAT implementation by following the echo_vmat_portpy.ipynb example notebook for patient ID Lung_Patient_4.
Unfortunately, the script always runs into a KeyError: 'voxel_coordinate_XYZ_mm' in line 658 of the get_dfo_parameters() function in echo_vmat_optimization_col_gen.py. I have understood that the key voxel_coordinate_XYZ_mm does not exist in self.inf_matrix.opt_voxels_dict, which is created from the Lung_Patient_4/OptimizationVoxels_MetaData.json file. There is no line relating to voxel_coordinate_XYZ_mm in this file, which I downloaded from your Google Drive dataset folder (https://drive.google.com/drive/folders/1nA1oHEhlmh2Hk8an9e0Oi0ye6LRPREit). However, by going through your PortPy repository on GitHub I found that you uploaded an updated version of the Lung_Patient_4/OptimizationVoxels_MetaData.json file, now including a new line "voxel_coordinate_XYZ_mm_File": "OptimizationVoxels_Data.h5/voxel_coordinate_XYZ_mm",. I replicated this change in my local file, but the error persists. What I've noticed by opening OptimizationVoxels_Data.h5 directly is that it doesn't seem to contain a voxel_coordinate_XYZ_mm (but only a ct_to_dose_voxel_map). Hence, I suppose that this might be the source of the error, but I couldn't find any updated OptimizationVoxels_Data.h5 file for patient Lung_Patient_4 anywhere.
Could you be so nice as to clarify whether I am on the right track and give advice on how to solve this issue?