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Create Point Cloud Scene Layer Package

Summary

Creates a point cloud scene layer package (.slpk file) from LAS, zLAS, LAZ, or LAS dataset input.

Usage

  • The output coordinate system should match the spatial reference of the web scene in which it will be displayed. If the intended display environment will be a global web scene view, the output coordinate system must use GCS WGS 84. A vertical coordinate system for a global scene must be ellipsoidal or EGM2008 Geoid or EGM96 Geoid.

  • All LAS, ZLAS, or LAZ files being processed must have the same spatial reference. If multiple spatial references are used by the desired collection of LAS or ZLAS files, consider using the Extract LAS tool to reproject the data to a common spatial reference. Datasets with an unknown coordinate system will be blocked as input to the tool.

  • A LAS, ZLAS, or LAZ file can have its spatial reference defined in its header or by a PRJ file with the same base name that is placed in the same location. The PRJ file will override the information in the header and can be used to rectify missing or invalid spatial reference information. If all of the LAS, ZLAS, or LAZ files being processed have unknown coordinates but use the same spatial reference, only one file will need to have a PRJ defined for the tool to process the collection. A PRJ file can be generated with the Create LAS Dataset tool.

  • LAZ files with missing coordinate system information can be defined through the Input Coordinate System parameter.

  • A scene layer package with a file size of less than 1 GB can be uploaded directly in a browser to ArcGIS Online or Portal for ArcGIS. If it is larger than 1 GB, use the Share Package tool to upload it to ArcGIS Online or Portal for ArcGIS 10.5 or later for point cloud scene layer packages.

Syntax

CreatePointCloudSceneLayerPackage_management (in_dataset, out_slpk, {out_coor_system}, {transform_method}, {attributes}, {point_size_m}, {xy_max_error_m}, {z_max_error_m}, {in_coor_system}, {scene_layer_version})
ParameterExplanationData Type
in_dataset

The lidar data (LAS, zLAS, LAZ, or LAS dataset) that will be used to create a scene layer package. The lidar data can also be specified by selecting the parent folder that contains the desired files.

Layer File; LAS Dataset Layer; Folder; File
out_slpk

The output scene layer package (.slpk).

File
out_coor_system
(Optional)

The coordinate system of the output scene layer package. It can be any projected coordinate system or GCS_WGS_1984. If a z-datum is defined, the linear unit must match that of the horizontal coordinate system. If the horizontal coordinate system is expressed in geographic coordinates, the z-datum must use meters. GCS_WGS_1984 is the default horizontal coordinate system. NAVD 88 is the default vertical coordinate system. The coordinate system can be specified by any of the following:

  • Specifying the path to a .prj file
  • Referencing a geodataset or scene with the desired coordinate system
  • Using an arcpy.SpatialReference object

Spatial Reference
transform_method
[transform_method,...]
(Optional)

The datum transformation method that will be used when the input layer's spatial reference uses a datum that differs from the output coordinate system. All transformations are bidirectional, regardless of the direction implied by their names. For example, NAD_1927_to_WGS_1984_3 will work correctly even if the datum conversion is from WGS 1984 to NAD 1927.

Note:

The ArcGIS Coordinate System data is required for vertical datum transformations between ellipsoidal and gravity-related and two gravity-related datums.

String
attributes
[attributes,...]
(Optional)

The source data attributes to be included in the scene layer package. These values will be accessible when the content is consumed in other viewers. Select attributes that are required for the desired rendering and filtering options (for example, intensity, returns, class codes, RGB). To reduce storage, exclude unneeded attributes.

  • INTENSITY The return strength of the laser pulse for each lidar point.
  • RGBRGB imagery information collected for each lidar point.
  • FLAGSClassification and scan direction flags.
  • CLASS_CODEClassification code values.
  • RETURNSDiscrete return number from the lidar pulse.
  • USER_DATAA customizable attribute that can be any number in the range of 0 to 255.
  • POINT_SRC_IDFor aerial lidar, this value typically identifies the flight path that collected a given lidar point.
  • GPS_TIME The GPS time stamp at which the laser point was emitted from the aircraft. The time is in GPS seconds of the week where the time stamp is between 0 and 604800 and resets at midnight on a Sunday.
  • SCAN_ANGLEThe angular direction of the laser scanner for a given lidar point. The value range is from -90 through 90.
  • NEAR_INFRAREDNear infrared records collected for each lidar point.
String
point_size_m
(Optional)

The point size of the lidar data. For airborne lidar data, the default of 0 or a value close to the average point spacing is usually best. For terrestrial lidar data, the point size should match the desired point spacing for the areas of interest. Values are expressed in meters. The default of 0 will automatically determine the best value for the input dataset.

Double
xy_max_error_m
(Optional)

The maximum x,y error tolerated. A higher tolerance will result in better data compression and more efficient data transfer. Values are expressed in meters. The default is 0.1.

Double
z_max_error_m
(Optional)

The maximum z-error tolerated. A higher tolerance will result in better data compression and more efficient data transfer. Values are expressed in meters. The default is 0.1.

Double
in_coor_system
(Optional)

The coordinate system of the input LAZ files. This parameter is only used for LAZ files that do not contain spatial reference information in their header or have a .prj file.

Coordinate System
scene_layer_version
(Optional)

The Indexed 3D Scene Layer (I3S) version of the resulting point cloud scene layer package. Specifying a version supports backward compatibility and allows scene layer packages to be shared with earlier versions of ArcGIS.

  • 1.XSupported in all ArcGIS clients. This is the default.
  • 2.XSupported in ArcGIS Pro 2.1.2 or later and can be published to ArcGIS Online and ArcGIS 10.6.1 or later.
String

Code sample

CreatePointCloudSceneLayerPackage example (Python window)

The following Python script demonstrates how to use the CreatePointCloudSceneLayerPackage tool from the Python window.

import arcpy
arcpy.env.workspace = "c:/gis_data"
arcpy.management.CreateSceneLayerPackage(
    "Milan.lyrx", "Milan.slpk", arcpy.SpatialReference(4326), 
    ["ITRF_2000_To_WGS_1984 + WGS_1984_To_WGS_1984_EGM2008_2.5x2.5_Height"],
    ["INTENSITY", "RGB", "CLASS_CODE", "FLAGS", "RETURNS"], 0, 0.1, 0.1, None, "1.X")

Environments

This tool does not use any geoprocessing environments.

Licensing information

  • Basic: Yes
  • Standard: Yes
  • Advanced: Yes

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