option "size" - "Number of pixels of each coordonate" int no multiple default="0"
option "spacing" - "Spacing in mm between pixels" float no multiple default="-1.0"
option "default" d "Default pixel value" float no default = "0.0"
option "size" - "Number of pixels of each coordonate" int no multiple default="0"
option "spacing" - "Spacing in mm between pixels" float no multiple default="-1.0"
option "default" d "Default pixel value" float no default = "0.0"