Neara supports manually modelling terrain in your project, as well as importing terrain data from these file types:
DXF (terrain, pole data, overlay imagery)
Comma-separated (.CSV) survey files
LiDAR data in .las, .laz, and .txt files
KML
This sample Neara project can be used to experiment with when following this tutorial. When prompted choose the Make a copy option.
Survey file CSV format
A survey file can include a combination of ground and structure feature points, including:
Ground
Water
Road
Vegetation
Building
Railway
Special
Structure (every time we specify structure a pole is placed)
Conductor
A sample survey CSV file with a combination of ground and feature points is available for download at the bottom of this article
Import survey data
Select Project / Import from CSV from the menu. On the dialog, select the CSV file and choose Combination in the Select Type dropdown:
Click Apply at the bottom of the dialog.
If you find it difficult to see the imported survey points against the map imagery in the perspective view, you can decrease the Map overlay opacity under the View menu:
Fill in sparse ground survey data
Sometimes you may have areas with sparse ground survey data. The Survey tool on the toolbar provide two ways to help you fill in data:
Interpolate ground profile between two points
Select the Survey tool on the toolbar
Select one survey point
Select the Interpolate terrain points option in the right-hand sidebar
Select a second survey point
Neara will interpolate between the two survey points
Place points manually
Select the Survey tool on the toolbar
Left-click to place survey points
Under Feature point in the sidebar, set the properties for the newly placed point
Importing terrain or terrain overlay imagery from DXF