Fix: automatic range computation in transfer functions for float32 datasets no longer fails for one point #596
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Previously, the auto range could get computed as
[point_x_value, 1]
wherepoint_x_value > 1
with only one point, which would cause incorrect transfer function calculations. This could only happen for float32 datasets. This is to correct for this, by setting the range to[point_x_value, point_x_value + 1]
for single point transfer functions and float32 data.