Cut and Fill Volume Analytic
Cut and Fill Volume Analytic calculates the difference in volume between two terrain surface or one terrain surface and a design file.
1. Click the More () button in the Analytics tab.
2. You will have the option to create a new analytic, or an analytic group which lets you group the individual analytics for your convenience.
To create a new cut & fill analytic, select "Create new analytic."
3. Find the Cut & Fill Volume from the displayed modal window and select it:
4. You can either upload a geometrics file (.geojson, .json, .csv) from an old analytic or proceed on entering the desired name and create the polygon after.
To download a geometrics file from an old analytic, open the analytic and click on the menu options inside the analytic drawer. Choose between downloading a .csv or .geojson file.
Drag and drop the file to create a new analytic. The polygon will be automatically loaded in the new analytic.
5. The app will display an Instruction banner at the top of the 3D map panel. Follow the instructions by clicking the map to draw the polygon.
**If you imported a geometrics file, proceed to Step "c" if you need to adjust your polygon.
a. After you have clicked for three points, the polygon will be closed.
b. After that, click and drag to move the position of points within the line. To add points, drag the smaller dots in the middle of each polygon side. To delete points, double-click them.
c. After drawing/importing the polygon, you can manually adjust the coordinates of the points by selecting the three dots menu of the point you wish to update and choosing Set Coordinates. Additionally, you can click the row in the drawer and look for the redpoint in the 3D map panel.
6. In the bottom drawer make selections for each of the two surfaces that will be compared. For each surface, you can choose a dataset that has terrain, or a 3D surface design file. This enables the following three configurations:
- Terrain compared with terrain: useful for calculating the change between two data captures.
- Terrain compared with a design: useful for calculating the amount of work remaining to meet the design.
- Design compared with design: useful for calculating the difference between two designs.
7. When done, click Done to save your progress and calculate the volume measurements for the polygon. These values will be displayed in the bottom drawer.
8. To enter a density and get mass values, click the Edit button at the top right of the bottom drawer to enter edit mode. Click Add Density, enter the value, then click Done. The calculated mass value will be displayed for each volume value.
9. To edit the points of the polygon (move, delete, or add more points) or edit the selected surfaces, enter edit mode and make the changes then click Done.
10. To change the elevation value associated with each color of the heatmap (known as “thresholds”), enter edit mode and click the value you wish to change, then click Done. The heatmap will update.
11. To rename or delete the analytic, click Done, then click the three dots button to the right of the Edit button.
12. To download the calculation results in a CSV file, click the three dots button to the right of the Edit button and choose Download Results.