filters.decimation¶

The decimation filter takes a stream of points and steps through it, taking only every Nth point. With a step of 2, the filter takes every second point, for a reduction of 50%. With a step of 10, the filter takes every tenth point, for a reduction of 90%.

Example¶

<?xml version="1.0" encoding="utf-8"?>
<Pipeline version="1.0">
  <Writer type="writers.las">
    <Option name="filename">smaller.las</Option>
    <Filter type="filters.decimation">
      <Option name="step">10</Option>
      <Reader type="readers.las">
          <Option name="filename">larger.las</Option>
      </Reader>
    </Filter>
  </Writer>
</Pipeline>

Options¶

step: How many points to skip between each sample point? A step of 1 will skip no point, and leave the stream unchanged. A step of 100 will reduce the stream by 99%. [Default: 1]
offset: Start sampling with what point? [Default: 0]