The pixel data generating device 1, further comprising an interpolation axis setting module for determining whether the interpolation axis is to be set in {TAIL ~ a direction} parallel to the X axis or a direction parallel to the Y axis, based on at least one of {HEAD ~ azimuth directions} of the first sweep line and the second sweep line 
The pixel data generating device 1 , further comprising an interpolation axis setting module for determining whether the interpolation axis is to be set in { TAIL ~ a direction } parallel to the X axis or a direction parallel to the Y axis , based on at least one of { HEAD ~ azimuth directions } of the first sweep line and the second sweep line
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