Import Grid from Point Cloud

Author(s)	O.Conrad, V.Wichmann (c) 2024
Library ID	io_pdal
Tool ID	2
Version	1.0
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 Supported point cloud formats:

Name	Extension	Description

References

PDAL Homepage

ASPRS LAS Specification

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Target System	grid, input, optional [CMD]	`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
	West	floating point number	`TARGET_USER_XMIN`	-	Default: 0
	East	floating point number	`TARGET_USER_XMAX`	-	Default: 100
	South	floating point number	`TARGET_USER_YMIN`	-	Default: 0
	North	floating point number	`TARGET_USER_YMAX`	-	Default: 100
	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
	Number of Values^*	boolean [GUI]	`COUNT_CREATE`	-	Default: 0

^* GUI only

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
  -TARGET_USER_XMIN:   West
	floating point number
	Default: 0
  -TARGET_USER_XMAX:   East
	floating point number
	Default: 100
  -TARGET_USER_YMIN:   South
	floating point number
	Default: 0
  -TARGET_USER_YMAX:   North
	floating point number
	Default: 100
  -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
[CMD]
  -GRID:                  Grid
	grid, output
  -COUNT:                 Number of Values
	grid, output, optional