About the Maximum Grow Window Area
The maximum grow window area parameter is used as a limit to the
surface
growing. When the area of the grow window exceeds this value,
it is terminated but points are still classified.
Effects of Increasing or Decreasing the Maximum Grow Window Area
- Increasing Value: Increasing the maximum grow window area should
result in more points being classified. Higher values will classify
more points because a lower area value could abruptly terminate
the surface growing for a plane
resulting in missed points along the edge of the surface being
grown. In addition, increasing this value will increase the processing
time due to an increase of surface growing. Increasing the value
beyond the maximum object area found in the point cloud data (e.g.,
larger than the biggest building for example) will have no effect
on the number of points being classified and only increase processing
times.
- Decreasing Value: Decreasing the maximum grow window area should
result in fewer points being classified due to a similar process
as described above. Lower maximum grow window areas will decrease
processing time. If the value of the parameter is below the maximum
object area found in the point cloud data, it is possible certain
portions of an object of interest might be missed.
