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Adding survey query results to a surface in Civil 3D allows you to use selected survey points or data as part of your surface definition. This process is useful for refining existing surfaces or creating new surfaces based on specific survey data.
Steps to Add Survey Query Results to a Surface
1. Query Survey Data
Open the Survey Database:
In the Toolspace, go to the Survey tab.
Expand the desired survey database.
Create a Query:
Right-click the Queries node and select New Query.
Set up the query criteria (e.g., specific point descriptions, elevation ranges).
Save and execute the query to generate results.
2. Export Query Results to Drawing
Export Points:
Right-click the executed query in the Survey Tab.
Select Insert Into Drawing to add the queried points to the drawing as COGO points.
Export Figures (if applicable):
If your query results include survey figures (e.g., breaklines or boundaries), ensure they are inserted into the drawing.
3. Create or Select a Surface
Create a New Surface (if needed):
Go to the Home Tab Create Ground Data Panel Surfaces Create Surface.
Name the surface and choose the desired style.
Select an Existing Surface:
In the Toolspace, under the Prospector Tab, expand the Surfaces node and select the desired surface.
4. Add Points to the Surface
Open Surface Properties:
Right-click the surface in the Prospector Tab and select Edit Surface Style or Edit Surface Properties.
Add Points:
Right-click the surface and go to Definition Add Point Files or Add Points.
Select the points from the drawing (inserted from the survey query results).
5. Add Breaklines (if applicable)
If your survey query results include breaklines:
In the Prospector Tab, expand the Surfaces node and right-click the surface.
Select Definition Add Breaklines.
Choose the breaklines (survey figures) from the drawing.
6. Rebuild the Surface
Rebuild Automatically (if enabled):
The surface should automatically update to include the new points and breaklines.
Manual Rebuild:
Right-click the surface in the Prospector Tab and select Rebuild to refresh the surface.
Best Practices
Validate Survey Data:
Before adding points to the surface, ensure the data is accurate and free from errors.
Assign Correct Styles:
Apply appropriate surface styles to visualize the updates clearly.
Use Description Keys:
Automate point processing by using description keys for categorization.
Backup Data:
Save a copy of your drawing or surface before adding new data.
