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 | - | - |
| 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