Use this dialog box to modify the survey database settings. These settings are specifically for the survey database features. By default, the survey database settings are stored in C:\Users\Public\Documents\Autodesk\Civil 3D Projects\<database name>\Survey.sdb_set file.
Establish specify the database units.
Click to display the Select Coordinate Zone dialog box where you can specify the coordinate zone for the survey database data. The default zone is set to None.
Specifies the distance unit. Click the cell in Value column and select a distance unit from the list.
Specifies the angle unit for the survey database data. Click the cell in the Value column and select an angle type from the list.
Specifies the direction type for the Survey database data. Click the cell in the Value column and select a direction type from the list.
Specifies the temperature unit for the survey database data when temperature corrections are applied to observations. Click the cell in the Value column and select a temperature type from the list.
Specifies the atmospheric pressure unit for the survey database when pressure corrections are applied to observations. Click the cell in the Value column and select a pressure type from the list.
Establish the display precision of the survey data.
Specifies the precision value for all angle (including direction) values. The default precision is 4.
Specifies the precision value for all distance values. The default precision for Meters is 3, the default precision for Feet is 2.
Specifies the precision value for all elevation values. The default precision for Meters is 3 and Feet is 2.
Specifies the precision value for all coordinate values. The default precision is 4.
Specifies the precision value for all latitude and longitude values. The default precision is 8.
Establish the default types assigned to the measurements.
Specifies the default angle type. Click the cell in the Value column and select a distance type from the list.
Specifies the default distance type. Click the cell in the Value column and select a distance type from the list.
Specifies the default vertical type. Click the cell in the Value column and select a vertical type from the list.
Specifies the default target type. Click the cell in the Value column and select a target type from the list.
Specify the default measurement corrections to apply to the survey observations.
Select Yes to correct measurement calculations for curvature of the earth and refraction of the sun light.
Select Yes to correct measurement calculations to sea level.
Select Yes to correct measurement calculations for temperature and pressure.
Select Yes to correct Face 1 Angle and Face 2 Angle types for horizontal collimation .
Select Yes to correct Face 1 Angle and Face 2 Angle types for vertical collimation.
Select Yes to correct calculated horizontal distances for scale factor.
Select Yes to correct distance measurements for EDM and prism offsets.
Select Yes to perform a mathematical analysis based on the method you specify as the Horizontal Adjustment Method.
Select Yes to have the angular error evenly distributed throughout the traverse.
Specify one of the following traverse analysis methods:
Specify one of the following vertical adjustment methods:
Specifies the minimum allowable error of closure in the horizontal direction, for example a value of 15000.00 is 1 part in 15000.
Specifies the minimum allowable error of closure in the vertical direction, for example a value of 15000.00 is 1 part in 15000.
Specifics the maximum angular error per traverse observation set.
Specify the survey database setting defaults for performing a least square analysis on a network or a traverse.
Specifies the adjustment type for network least squares analysis only. The Traverse Analysis Defaults settings determine either a 2D or 3D analysis. Click the cell in the Value column and select one of the following from the list:
Specifies the maximum number of times the least squares routine adjusts the observations before a solution is reached. This default setting is 8. The maximum number of iterations that you can enter is 10. Generally, the solution is reached within two or three iterations.
Specifies the maximum difference that is allowed between the coordinates before the solution is accepted.
Specifies either 95% or 99% as the percentages calculated in conjunction with the F distribution. F is the ratio of two independent chi square variables, which are divided by the respective degrees of freedom. For example, if the confidence level is set to 99%, then you can be 99% sure that the calculated ellipse contains the true location for the point.
Select Yes to include blunder detection in the least squares output (*.lso) file.
Specify the survey database settings for interacting with the Survey Command Window.
Select Yes to automatically repeat the last command in the Survey Command Window. This setting is on by default. When this setting is on, you can enter the command name once, and then continue to use the command by entering numeric data. To end the command, enter another command name.
Select Yes to enable automatic point numbering. When automatic point numbering is on, new points are automatically assigned the next available point number. When automatic point numbering is off, you must specify new point numbers as they are needed.
Specifies the number at which to start Auto Point Numbering.
Select Yes to have the Survey Command Window report the course taken to reach a point, including the direction and the distance.
Affects output in both the output file and the output view of the Survey Command Window.
Select Yes to have the Survey Command Window report the course taken to create a figure, including direction and distance.
Affects output in both the output file and the output view of the Survey Command Window.
Select Yes to have the Survey Command Window display the point coordinates, including northing, easting, and elevation information.
Affects output in both the output file and the output view of the Survey Command Window.
Select Yes to have the Survey Command Window display figure point coordinates, including northing, easting, and elevation information.
Affects output in both the output file and the output view of the Survey Command Window.
Select Yes to have the Survey Command Window display the commands that are entered.
Affects output in both the output file and the output view of the Survey Command Window.
Select Yes and specify a batch file to record Survey Command Window input per network. The batch file for each network in a survey database is saved to Civil 3D Projects\<named> Survey Database\<named> Network\Batch.txt.
If set to No, no commands are displayed in the Batch view of the Survey Command Window.
Select Yes and specify an output file name to record Survey Command Window output. The output file for each network in a survey database is saved to Civil 3D Projects\<named> Survey Database\<named> Network\Output.txt.
Specifies that tolerance errors are included in the calculation of survey points. If you specify Yes then observations with tolerance errors are included in the calculation of the survey point.
Specifies a maximum difference in distance. If you observe a distance to a point more than once and the difference is greater than the acceptable value then an event is listed in the Event Viewer and a warning icon is displayed on the observation in Toolspace. If the difference in distance is less than the acceptable value, then the distance difference is averaged to establish the point coordinates.
Specifies the maximum angular difference. If you observed an angle to a point more than once and the difference is greater than the acceptable value then an event is listed in the Event Viewer and a warning icon is displayed on the observation in Toolspace. If the angular difference is less than the acceptable value, then the angular difference is averaged to establish the point coordinates.
Specifies the maximum elevation difference. If you observed an elevation to a point more than once and the difference is greater than the acceptable value then an event is listed in the Event Viewer and a warning icon is displayed on the observation in Toolspace. If the elevation difference is less than the acceptable value, then the elevation difference is averaged to establish the point elevation.
Specifies the maximum coordinate difference. If you located a point from more than one setup, and the difference is greater than the acceptable value then an event is listed in the Event Viewer and a warning icon is displayed on the observation in Toolspace. If the coordinate difference is less than the acceptable value, then it is averaged to establish the point coordinates.
Specify the survey database extended property settings.
Specify Yes to automatically create Survey LandXML properties in the LandXML file that do not exist in the Survey database.
Specify Yes to display a warning in the Event Viewer for any instance of a <SurveyFeatureClass> that is missing a required property. The Event Viewer tree displays the survey database name and the command name. The Event Viewer description column displays the <SurveyFeatureClass><ObjectID>:Missing required <property name> value.
Specify Yes to enable logging of changes that affect the survey database. These changes are stored in an .log file that is use with the change report .xsl file to create the change report.