PrecisionMapper provides following outputs as a different zipped folder. Make sure that you extract all content to access the output with the help of the required software.
- Georeferenced Image (Orthomosaic)
- Digital Surface Model (DSM)
- Keyhole Markup Language (KML) Files
- Point Cloud
- 3D Model
- Contours (.SHP)
- Drawing Exchange format (.dxf)
The following table provides you a list of outputs provided by PrecisionMapper, their file extensions and necessary software to view them.
|Output Name||Output File Type||Required Software*|
|Georefernced Image||.tif||Software like QGIS, ArcGIS, etc|
|Digital Surface Model (DSM)||.tif||Software like QGIS, ArcGIS, etc|
|KML Files||.kml||Google Earth for KML file|
Any web-browser for HTML file
|Point Cloud||.las||Software like ArcGIS, AutocadMap, GlobalMapper, etc.|
|3D Model||.obj||Software like MeshLab|
|Contours||.shp||Software like QGIS, ArcGIS, etc.|
|Drawing Exchange Format||.dxf||Software like Autocad, ABViewer etc.|
Georeferenced Image (Orthomosaic)
The Georefernced Image and Orthomosaic are one in the same. Orthomosaic is the more scientific naming of this particular output. This output is one continuous image that is created from stitching together all of your individual source images.
This output will always be represented as a .tif output file type (Tag Image File). It is georeferenced based on the GPS information found in your source images. If opened in a GIS software like QGIS it can be overlayed with other Geospatial layers that are georeferenced. The standard projection of this data is WGS84 Geographic coordinate system.
Digital Surface Model (DSM)
The Digital Surface Model output is a two dimensional representation of elevation data in your survey. It provides the topographic image of the survey region, which is inclusive of natural vegetation as well as built structures. Each pixel is a measurement of elevation and each elevation value is assigned a color from black to white. Black is the lowest features in the image while black is the highest. All elevation values seen in this output Similar to your Georeferenced Image output the output will be available in .tif format with a WGS84 Geographic Coordinate system and a NAD83 Vertical coordinate system.
KML Tile Set
The KML output is an XML based file format that is used to represent geographic data. This output is created by Google and is typically opened in Google Earth desktop program but can be opened in a variety of programs. It functions very similarly to the Georefernced Image output but in a slightly different format.
A point cloud is another three dimensional output that we offer. As you would assume this file is made up of thousands of points, each point will represent an elevation value in the survey. Like all of our three dimensional outputs Elevation is represented in terms of Relative elevation and not Above Mean Sea Level. The will be in a .las file format.
The 3D model is a output that looks very similar to the Triangle Mesh model. As you can see from the screenshot below, the view of these outputs are nearly identical. The difference between a 3D model and a triangle mesh model is the complexity of the mesh that is draped over the elevation points. The 3D model is given in a .ply format. This model can hold information on elevation, color, transparency, texture, and more. These properties make up a fairly realistic view of your data in three dimensions.
Contour lines represent elevation changes across your area of interest in two dimensions. Each line in a contour map represents a set change in elevation over that distance. Below you can see a Contour map showing 2 meters of elevation change for each line seen. During the upload process you are able to define the elevation thresholds that are represented in the Contour output. Contour is delivered as .shp file.
DXF (Drawing Exchange Format) is a file type that is most often used in the Construction, Engineering, and Architecture field. In this format features can be represented as vectors in three dimensions. The file format was developed by Autodesk as a universal format for storing CAD models. The idea is that the file format is supported in various 3D modeling programs.