Import Grid from Point Cloud

Author: O.Conrad, V.Wichmann (c) 2024
Menu: File | Grid | Import

Description

This tool directly creates a grid from point cloud elevation data and supports several file formats using the "Point Data Abstraction Library" (PDAL). PDAL 2.7.2 (git-version: Release) Supported point cloud formats:

Name	Extension	Description
readers.copc	copc	COPC Reader
readers.draco		Read data from a Draco array.
readers.e57		Reader for E57 files
readers.fbi	fbi	Fbi Reader
readers.hdf		HDF Reader
readers.i3s		I3S Reader
readers.icebridge		NASA HDF5-based IceBridge ATM reader. See http://nsidc.org/data/docs/daac/icebridge/ilatm1b/index.html for more information.
readers.ilvis2		ILVIS2 Reader
readers.las	las;laz	ASPRS LAS 1.0 - 1.4 read support
readers.nitf		NITF Reader
readers.obj	obj	Obj Reader
readers.pcd	pcd	Read data in the Point Cloud Library (PCL) format.
readers.pgpointcloud		Read data from pgpointcloud format. "query" option needs to be a SQL statement selecting the data.
readers.ply	ply	Read ply files.
readers.pts	pts	Pts Reader
readers.ptx	ptx	Ptx Reader
readers.qfit	qi	QFIT Reader
readers.sbet	sbet	SBET Reader
readers.slpk		SLPK Reader
readers.smrmsg	smrmsg	SBET smrmsg Reader
readers.stac		STAC Reader
readers.terrasolid	bin	TerraSolid Reader
readers.text	csv;txt	Text Reader
readers.tiledb		Read data from a TileDB array.
readers.tindex	tindex	TileIndex Reader

References

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Target System	grid, input, optional	`TARGET_TEMPLATE`	use this grid's system for output grids	-
Output	Grid	grid, output	`GRID`	-	-
Output	Number of Values	grid, output, optional	`COUNT`	-	-
Options	Files	file path	`FILES`	-	-
	Open Streamable	boolean	`STREAM`	Use streamable file access if supported by driver. Reduces memory requirements.	Default: 1
	Classes	text	`CLASSES`	If classification is available only points are loaded whose identifiers are listed (comma separated, e.g. "2, 3, 4, 5, 6"). Ignored if empty.	-
	Value Aggregation	choice	`AGGREGATION`	Output generated when more than one point falls into one target cell.	Available Choices: [0] first [1] last [2] minimum [3] maximum [4] mean Default: 1
	Target Grid System	choice	`TARGET_DEFINITION`	-	Available Choices: [0] user defined [1] grid or grid system Default: 0
	Cellsize	floating point number	`TARGET_USER_SIZE`	-	Minimum: 0.000000 Default: 1.000000
	West	floating point number	`TARGET_USER_XMIN`	-	Default: 0.000000
	East	floating point number	`TARGET_USER_XMAX`	-	Default: 100.000000
	South	floating point number	`TARGET_USER_YMIN`	-	Default: 0.000000
	North	floating point number	`TARGET_USER_YMAX`	-	Default: 100.000000
	Columns	integer number	`TARGET_USER_COLS`	Number of cells in East-West direction.	Minimum: 1 Default: 101
	Rows	integer number	`TARGET_USER_ROWS`	Number of cells in North-South direction.	Minimum: 1 Default: 101
	Rounding	boolean	`TARGET_USER_FLAT`	Round bounding coordinates to multiples of cell size. Ignored if cell size has decimal places.	Default: 1
	Fit	choice	`TARGET_USER_FITS`	-	Available Choices: [0] nodes [1] cells Default: 0
	Grid System	grid system	`TARGET_SYSTEM`	-	-

Command Line


Usage: saga_cmd io_pdal 2 [-FILES ] [-STREAM ] [-CLASSES ] [-AGGREGATION ] [-TARGET_DEFINITION ] [-TARGET_USER_SIZE ] [-TARGET_USER_XMIN ] [-TARGET_USER_XMAX ] [-TARGET_USER_YMIN ] [-TARGET_USER_YMAX ] [-TARGET_USER_COLS ] [-TARGET_USER_ROWS ] [-TARGET_USER_FLAT ] [-TARGET_USER_FITS ] [-TARGET_TEMPLATE ] [-GRID ] [-COUNT ]
  -FILES:                 Files
	file path
  -STREAM:                Open Streamable
	boolean
	Default: 1
  -CLASSES:               Classes
	text
  -AGGREGATION:
                               Value Aggregation
                               	choice
                               	Available Choices:
                               	[0] first
                               	[1] last
                               	[2] minimum
                               	[3] maximum
                               	[4] mean
                               	Default: 1
  -TARGET_DEFINITION:
                               Target Grid System
                               	choice
                               	Available Choices:
                               	[0] user defined
                               	[1] grid or grid system
                               	Default: 0
  -TARGET_USER_SIZE:   Cellsize
	floating point number
	Minimum: 0.000000
	Default: 1.000000
  -TARGET_USER_XMIN:   West
	floating point number
	Default: 0.000000
  -TARGET_USER_XMAX:   East
	floating point number
	Default: 100.000000
  -TARGET_USER_YMIN:   South
	floating point number
	Default: 0.000000
  -TARGET_USER_YMAX:   North
	floating point number
	Default: 100.000000
  -TARGET_USER_COLS:      Columns
	integer number
	Minimum: 1
	Default: 101
  -TARGET_USER_ROWS:      Rows
	integer number
	Minimum: 1
	Default: 101
  -TARGET_USER_FLAT:      Rounding
	boolean
	Default: 1
  -TARGET_USER_FITS:      Fit
	choice
	Available Choices:
	[0] nodes
	[1] cells
	Default: 0
  -TARGET_TEMPLATE:       Target System
	grid, input, optional
  -GRID:                  Grid
	grid, output
  -COUNT:                 Number of Values
	grid, output, optional