To more easily see the nuances in the terrain, we recommend using the Elevation Toolbox as the base layer of the map when computing volumes.īelow is an example that demonstrates why using the Elevation Toolbox is a best practice when calculating volumes. Sometimes it can be difficult to see the base of a stockpile when looking at the Orthomosaic image, due to shadows or similarly colored surrounding areas. For example, accidentally selecting a point on a pile of rocks, as opposed to on the ground, will change the volume calculation and its accuracy. This means that the elevation of the points you select is very important. This is perfect for long thin stockpiles, or for large stockpiles over 0.5 acres in size.Īs you'll see in () - the volume is calculated by creating a surface which fits within the area you define. Triangulated joins up all of the edge points to create a 3D surface under your stockpile. If the ground is slightly sloped then, this can distort results. The lowest point base plane is very sensitive to the vertices of the volume annotation being created and assumes the ground under the annotation is very flat. This option is more suited to calculate the volume of benches or stockpiles on flat ground in bins, or where there are neighboring piles right up against each other. Lowest Point calculates a horizontal base plane from the lowest edge point. ![]() It's great for stand-alone stockpiles in most situations on flat ground. Linear Fit (formerly "Best Fit") defines the base plane by fitting a perfectly flat plane, in 3D, through the chosen edge points. There are three base-plane options available for volume calculation Linear Fit, Lowest Point and Triangulated. Using the cross arrows in the middle, you can shift the area of interest in order to automatically recalculate the result.Ĭhoosing the appropriate base plane will help you ensure that you are recording accurate measurements.Units can be displayed in the Metric or Imperial system. Here is an example result:Įxample volumetric calculation. Adjust the points until you are happy with the area of interest.Add points around the stockpile for which you want to compute the volume.Ĭlick or tap to add points to complete the polygon.The tools in the lower right allow you to undo, or complete your polygon. Choose the Volume icon from the Annotation & Measurement options:.In order to define a volume to measure, you first need to select an area for which to compute the volume. Selecting an Area and Measuring its Volume DroneDeploy is best supported on the latest version of Google Chrome. Internet Explorer will NOT allow you to create volume measurements.
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