I3S: Difference between revisions

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[[File:San_francisco.png|thumb|300px|right|Custom geometries of San Francisco from an I3S Service, visualized in the {{software}}]]
Indexed 3D Scene Layer Specification (I3S){{ref|i3s}} is a format for large 3D Geo datasets. The specification was mainly designed for streaming large 3D visualization data over the web. The specification was originally designed by Esri and was adopted as a Community Standard by the OGC (Open Geospatial Consortium) in 2017. In ArcGIS software, an I3S dataset can be visualized using a Scene Layer.


{{learned|what a SLPK is|how to create a SLPK file|how to upload SLPK data into the {{software}}}}
In the {{software}} it is possible to add your own 3D models as [[Custom Geometries]]. A format for these models which the {{software}} supports is I3S, along with the other format [[CityGML]].
[[Category:Files]]


==What is SLPK?==
Different other formats, such as BIM data or a SketchUp model, can be converted to the I3S format with a SLPK file. Read on to learn more about this.
A Scene Layer Package (SLPK) file is an openly published file format for 3D geospatial data, designed as a package for storage or exchange that captures all resources for a "scene layer" structured according to the Indexed 3D Scene Layer (I3S) specification. The I3S/SLPK specification originates from Esri. A scene layer displays one of four data types: points, point cloud, 3D objects, or an integrated mesh.  


==How to create a SLPK?==
{{clear}}
In this documentation we will look on how to export a SLPK with ArcGIS Pro. To learn more about ArcGIS Pro visit ESRI's [https://pro.arcgis.com/en/pro-app/help/main/welcome-to-the-arcgis-pro-app-help.htm ArcGis Pro Documentation].
==I3S and SLPK ==
In order to export a 3d model as a SLPK it first must be imported into ArcGIS Pro and Georeferenced if it has no world coördinates. ArcGIS Pro allows for the following file formats to be imported:
A Scene Layer Package (SLPK) is a file format for the storage/exchange of one or more I3S layers. SLPK's can be used to import both  into your [[project]] once it has been created.


*DWG (Drawing) Used in CAD packages. Can be exported from most 3d animation packages.
=== 2D versus 3D ===
*OBJ (Wavefront object) Used in most 3d animation packages like Autodesk 3dsmax and Maya.
Generally, I3S Services and SLPK files are used to import [[Custom Geometries]], that provide an alternative 3D visualization, for existing or new [[Building]]s.
*DAE (Collada) Used in most 3d animation packages like Autodesk 3dsmax and Maya.
I3S services and SLPK files can also be used to import 2D spatial data for items such as [[Area]]s and [[Terrain]]s. However, the support for additional attributes is currently limited.
*3DS (3d studio) Used as an exported file from Autodesk 3dsmax.
*FLT (OpenFlight) Used in MultiGen Creator.
*WRL (Virtual Reality Modeling Language File)A VRML file format for representing 3D vector graphics.


There are differences in how a DWG file is added to your project from other 3d file formats. We will explain both methods below.
{{article end
|howtos=
* [[How to import i3s scene layer in new project]]
* [[How to create an SLPK file]]
* [[How to import an SLPK file]]
* [[How to import an SLPK file for 2D Spatial data]]
* [[How to import 3D Models from ArcGIS Online]]
* [[How to convert a Revit model to a SLPK file using ArcGIS Pro]]
|seealso=
* [[Custom Geometries]]
|references=
<references>
{{ref|i3s
  |name=Indexed 3D Scene Layers (I3S)
  |author=
  |page=
  |source=Open Geospatial Consortium
  |link=https://www.ogc.org/standard/i3s/
  |lastvisit=5-10-2023
}}
</references>
}}


===Adding a DWG file to ArcGIS Pro===
{{GeoDataOverview}}
If you are working with CAD data follow this procedure to import and convert the DWG to a SLPK file:

Latest revision as of 12:43, 22 December 2023

Custom geometries of San Francisco from an I3S Service, visualized in the Tygron Platform

Indexed 3D Scene Layer Specification (I3S)[1] is a format for large 3D Geo datasets. The specification was mainly designed for streaming large 3D visualization data over the web. The specification was originally designed by Esri and was adopted as a Community Standard by the OGC (Open Geospatial Consortium) in 2017. In ArcGIS software, an I3S dataset can be visualized using a Scene Layer.

In the Tygron Platform it is possible to add your own 3D models as Custom Geometries. A format for these models which the Tygron Platform supports is I3S, along with the other format CityGML.

Different other formats, such as BIM data or a SketchUp model, can be converted to the I3S format with a SLPK file. Read on to learn more about this.

I3S and SLPK

A Scene Layer Package (SLPK) is a file format for the storage/exchange of one or more I3S layers. SLPK's can be used to import both into your project once it has been created.

2D versus 3D

Generally, I3S Services and SLPK files are used to import Custom Geometries, that provide an alternative 3D visualization, for existing or new Buildings. I3S services and SLPK files can also be used to import 2D spatial data for items such as Areas and Terrains. However, the support for additional attributes is currently limited.

How-to's

See also

References

  1. ↑ Indexed 3D Scene Layers (I3S) ∙ Open Geospatial Consortium ∙ Found at: https://www.ogc.org/standard/i3s/ ∙ (last visited: 5-10-2023)
Geo Data
Project Sources
Open data sources • GeoShare • Custom Geometry
Web
WFS • WMS • WCS • CSW • Map service
File
CityGML • DXF • GeoJSON • GeoTIFF • SLPK
Import
Vector • Raster • 2D spatial plan • 3D model (I3S, CityGML)
Export
Vector • Raster • GeoShare Viewer


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