add some options for distance map
add some options for distance map

sk1712/IRTK,ghisvail/irtk-legacy,ghisvail/irtk-legacy,BioMedIA/IRTK,BioMedIA/IRTK,BioMedIA/irtk-legacy,ghisvail/irtk-legacy,ghisvail/irtk-legacy,BioMedIA/irtk-legacy,sk1712/IRTK,BioMedIA/irtk-legacy,sk1712/IRTK,BioMedIA/irtk-legacy,sk1712/IRTK,BioMedIA/IRTK,BioMedIA/IRTK