The Elevation Toolbox is a set of tools paired with a digital surface model used to measure and understand the elevations of the models you create in 2D.
These tools allow you to explore your data even more deeply through a perspective of the elevation and depth of each area of the map.
Using this tool, you can adjust the contrast to highlight variability within your map.
The elevation data on your maps is taken from the embedded geotags on your images. The Elevation Toolbox is automatically generated when you upload your imagery to DroneDeploy.com .
How can I access it?
If you have uploaded data and processed it while on the Free tier of DroneDeploy, you won't have access to the Elevation Toolbox unless it is re-uploaded and processed.
What is the elevation relative to?
Your elevation map is relative to the takeoff point of the drone. This means a negative area on your map is lower than your takeoff point.
To get started, select
Elevation from the side panel at the left.
When you open your map from the dashboard, it will automatically be brought to the 2D map. Choose
Elevation from the options at the left.
This will update the pane in the top left, showing a histogram of the elevations of the data, and the data itself.
Clicking on the histogram to the left brings up a new option.
There are several adjustable fields on the Elevation map:
Range of values
Editable options on the Elevation map.
We can also select a different coloring by clicking the Color Dropdown:
Viewing the elevation data in grayscale instead of the Jet color scheme.
You can also select different intensities of the shadows to emphasize depth
Jet coloring, medium Intensity.
Jet coloring, no Intensity.
Using the Distance annotation, you can view the elevation of a profile. This is useful to:
-Measure the height of certain features
-Measure the slope of the line segment (height change / distance)
-See if an area is flat/bumpy/sloped
To use this tool:
- Create a line using the distance tool.
- Click on the line so you see the cross arrows.
- View the elevation profile in the map panel at the left.
When your drone takes a photo, the GPS location and altitude of the drone are stored in the image. When you upload your imagery, DroneDeploy's powerful stitching software takes the altitude in each image and uses it to create a continuous surface.
Let's focus further on the data presented in the histogram.
The histogram has a few different values:
Using the bottom sliding bar, you can change the values presented on the map.
The map will automatically update.
Adjust the range of the elevation presented using the handles at the bottom of the histogram.
The top row of numbers is the area of the total map that falls within the range specified using the scale bar at the bottom.
The number at the top of the histogram presents the are of the map that falls within the range specified by handles at the bottom.
After making sure you have the appropriate limits set in the histogram, you can export the elevation data by clicking export.
You will see several formats to choose from, including Contours if you are on a Business, Premier, or Enterprise account:
Select "Raw Elevation Values" if you would like to export elevation data to be imported in 3rd party software like ESRI ArcMap and other GIS tools.