Inputs and Outputs

Inputs

The input for the GRYFN Plot Extraction Tool is point cloud and/or raster data. A field extent polygon is also used and can be drawn on screen or imported to define the area of interest.

Type	Format	Source & Description
Point Cloud	las, laz	Point cloud from 3D LiDAR
Point Cloud	las, laz	Image-based 3D reconstruction
Raster	tif, tiff	Digital surface model (1 band GeoTIFF)
Raster	tif, tiff	RGB Orthomosaic (3 band GeoTIFF)
Raster	tif, tiff	Vegetation index (1 band GeoTIFF)
Geographic data	geojson, json	Field extent polygon

If the input raster data has more than three bands, the tool will use the first three bands to compose an RGB image. If the input raster data has less than three bands, the tool will use the first band as a greyscale image.

Outputs

The primary output is the plots, with the option for the user to export centroids and centerlines.

Plots

• Description: Polygons that represent the segment boundaries.

• Format: geojson

• Properties: range-row, range, row, segment, GANG (global angle), DANG (delta angle), width, length

GANG (global angle) refers to the angle between the North and the row direction, ranging from -90 degrees to 90 degrees. A positive angle indicates a clockwise rotation.

DANG (delta angle) is the deviation from the global angle.

(Optional) Centroids

• Description: Centroids of the segments.

• Format: geojson

• Properties: range-row, range, row, segment, GANG, DANG

(Optional) Centerlines

• Description: Centerlines of the segments (along the row direction).

• Format: geojson

• Properties: range-row, range, row, segment, GANG, DANG