Modifying the Maximum Grow Window Area
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.
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- 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.
How Modify the Maximum Grow Window Area
Maximum Grow Window Area Box
- On the Planar Point Filter property page, type a new value into the Maximum Grow Window Area box.
- Click the 'Apply' button to commit the change.
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