One of the best features of the Propeller Platform is the ability to download your data. But how do you download your files? And what can you download? We’re going to answer all your download questions in this article.
Where do I download data?
1. After navigating to the dataset you want to download within your portal, click Files in the top bar of your portal.
2. Locate the desired data file from the dataset you are currently viewing.
3. Download the file.
You can download a Processing Report from this Files menu, but a report on measurements can be generated from the Reports tab in the top header bar.
If you can’t locate a file that should be available, please contact Propeller support.
What export formats does the Propeller Platform support?
The Propeller Platform supports the following export formats:
You can also download any design files that you have uploaded to your site. In other words, you can download anything you’ve uploaded.
The Propeller Platform also allows you to export selected parts of your site, which includes sharing specific measurements, such as a stockpile volume.
If you have used the Terrain Editing feature, you can also export that edited terrain.
What are the different export formats?
The 3D model is a triangular mesh (sometimes referred to as a tri-mesh or TIN) that represents the surface elevation of your site. It is good for loading an interpolated terrain model mesh of your site into a CAD or GIS software.
Propeller provides the model in three different resolutions: 250,000, 500,000, and 100,000 triangular faces. The DXF files have face count limits so these files are usable in desktop programs. This means for very large sites there will be some loss of data. The fewer faces, the less detail.
If you requested filtering on the dataset to remove site obstructions, then the DXF will represent the ground level of your site with all buildings, vegetation, or equipment removed to the best of our ability. If you did not request filtering, the file will describe the surface of all objects in your site.
An optional .OBJ file can be produced and downloaded. It is a textured 3D model defined by Wavefront format and has no coordinate system defined. This file is used in applications that use textured 3D models such as virtual or augmented reality applications. Because the optional .OBJ file is large in size, it will take longer for your data to process than it would without an .OBJ output.
This is a full-resolution geoTIFF version of the dataset orthomosaic. It will be available in the site's defined coordinate reference system (CRS) and in a geographic WGS84 projection.
The geoTIFF can be used in GIS software. Since the orthophoto geoTIFF makes use of the full-resolution from your aerial imagery, these file sizes can be extremely large and may not load at all if you have insufficient memory.
Please contact Propeller support if you are unable to load your geoTIFF.
This is a single complete image of the orthomosaic in the widely supported JPEG format that can be loaded into any image viewer. If you wish to georeference this file, you can do so with the included world file (.WLD or .JGW). Both files are bundled into a single “.zip” archive.
The point cloud is good for examining the points used to construct your site’s elevation models and meshes in a GIS software or dedicated point cloud software. The point cloud is provided as a zipped LAS file (.LAZ) to keep your point cloud’s file size as small as possible.
The points within this LAZ file are georeferenced to the same CRS as the provided ground control points (GCPs) and each point includes color information useful for visualization.
If filtering was requested on your data, then each point in your point cloud will also include a “class” which marks it as either ground or non-ground.
The most commonly used shapefile Propeller offers is a DXF file of the site contours.
This is a geoTIFF file version of the dataset terrain elevation. It can be downloaded in the site's defined CRS and in a geographic WGS84 projection.
If you need a file type not listed above, please check out our other articles about file formats and outputs.
I still can't do it!
We wrote these articles to arm you with everything you need to get the job done on your own, but we understand that sometimes this isn't sufficient.
If you're stuck, the Propeller data success team may be able to help. You can contact our support team by clicking the support tab on the top-right pane of your user portal.