Mapping Matlab Toolbox necessary

[mees]

When you run the preprocessing commands, you need to have the Mapping Matlab Toolbox installed, if not you encounter following error:

Undefined function or variable 'extractfield'.

Error in getFileNamesFromDirectory (line 34)
nameStruct = [nameStruct extractfield(t,'name')];

Error in computeOrthographicCam (line 20)
shapenetModelNames = getFileNamesFromDirectory(synsetDir,'types',{''});

Error in preprocess_everything (line 4)
computeOrthographicCam(classes{c});