Use this tab to specify default ambient (background) settings for a variety of settings, including units of measurement. These units and settings are used throughout Autodesk Civil 3D, unless they are overridden at the feature or command level.
For information about working with this dialog box, including the use of the override columns, see About Autodesk Civil 3D Settings.
These settings specify a variety of features, some of which control how to display text, numbers, and units.
Specifies how to display numbers in interface controls and on the command line:
Specifies whether any changes made to the settings during a command are saved for the drawing, even if the setting is marked as "locked" in the settings dialog box.
Specifies whether the Event Viewer is displayed automatically when an event occurs.
Specifies whether to display tooltips in the drawing. This setting does not affect tooltips for toolbar icons.
For example, if you move your cursor near an alignment, you see a tooltip that shows the station and offset location of the cursor. Tooltips can also show surface elevation, point, profile, and section information.
Displays the conversion method specified on the Units and Zone tab as either US Survey Foot or International Foot.
Specifies whether to display tooltips by default for new objects.
Displays the linear units that are used in the model space of the drawing. Set this value on the Units And Zone tab of this dialog box.
Displays the intended plot scale. Set this value on the Units And Zone tab of this dialog box.
Displays whether objects are scaled when they are inserted from other drawings. Set this value on the Units And Zone tab of this dialog box.
Determines how curb return alignments are drawn for intersection objects. Left Side of the Road is typically selected for projects where vehicles travel on the left side of the road; for example, in countries such as the United Kingdom. In this case, curb return alignments in intersection objects are drawn starting from the left side of the outgoing road, and ending on the left side of the merging road. Right Side of the Road is typically selected for projects where vehicles travel on the right side of the road; for example, in countries such as the United States. In this case, curb return alignments in intersection objects are drawn starting from the right side of the outgoing road, and ending on the right side of the merging road. For more information, see To Specify the Driving Direction for Intersection Creation.
Has the same effect as the Immediate And Independent Layer On/Off Control Of Display Components setting on the Object Layers tab.
This setting specifies the default method for prompting for objects when inserting labels that contain Referenced Text components.
These settings specify how to display numeric values that are not specifically defined by the unit type settings in this dialog box such as distance and coordinate.
Specifies the number of digits to show to the right of the decimal.
Specifies how numbers are rounded up or down to the number of decimal places specified in Precision:
If the next digit after the last displayable digit is greater than 5, the program rounds up. If the next digit after the last displayable digit is less than 5, the program rounds down.
Specifies how to mark numbers as positive or negative:
These settings specify how to display linear distances.
Specifies the linear unit to use:
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
These settings specify how to display linear dimensions.
Specifies the linear unit to use:
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
These settings specify how to display X and Y coordinates.
Specifies the linear unit to use:
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
These settings specify how to display surface elevations.
Specifies the linear unit to use:
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
These settings specify how to display surface areas.
Specifies the drawing unit to use:
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
These settings specify how to display terrain volumes.
Specifies the drawing unit to use:
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
These settings specify how to display speeds for design criteria.
Specifies the speed as:
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
These settings specify how to display deflection angles between two vectors.
Specifies the angular unit to use:
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
Specifies how to display angles:
For information, see the Unitless section of this topic.
Specifies whether to drop or display all zero digits after a decimal point. If there is a non-zero digit after decimal point, then these digits won't be dropped.
Drops leading zeros before values less than 10.
These settings specify how to display directions.
Specifies the angular unit to use:
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
Specifies how to display angles:
Specifies how to display directions:
Specifies how to display direction names:
For information, see the Unitless section of this topic.
Specifies how to calculate the direction of a vector:
Specifies which bearing quadrant to use:
Specifies whether to drop or display all zero digits after a decimal point. If there is a non-zero digit after decimal point, then these digits won't be dropped.
Drops leading zeros before values less than 10.
These settings specify how to display latitude and longitude.
Specifies the angular unit to use:
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
Specifies how to display angles:
Specifies the format of lat/long labels:
Specifies how to display direction names:
For information, see the Unitless section of this topic.
Specifies whether to drop or display all zero digits after a decimal point. If there is a non-zero digit after decimal point, then these digits won't be dropped.
Drops leading zeros before values less than 10.
These settings specify how to display grade and slope measurements.
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
Specifies how to display grade and slope values:
For information, see the Unitless section of this topic.
These settings specify how to display grade measurements.
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
Specifies how to display grade values:
For information, see the Unitless section of this topic.
These settings specify how to display slope measurements.
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
Specifies how to display grade and slope values:
For information, see the Unitless section of this topic.
These settings specify how to display linear features that use station or chainage.
Specifies the drawing unit to use:
Specifies the station format in labels, tooltips, and elsewhere:
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
Specifies the separator character used to display stations:
Specifies the scale to use for major stations:
Specifies whether to drop or display station whole numbers with zeroes after decimals:
Drops leading zeros before the station character for whole number station values.
Specifies the minimum display width for the station value, which allows leading zeros to be added if necessary. For example, assuming a minimum display width of 10 and a precision of 2, a station value of 1234.234 would be displayed as 0012+34.23.
These settings specify the default settings for acceleration across all features.
Specifies the drawing unit to use:
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
These settings specify the prompting behavior of transparent commands across all features. The formats used to prompt for grade and slope values are set using the Grade and Slope ambient settings.
Specifies the prompt sequence (X,Y or X, Y, Z) when creating a point in 3D:
Specifies whether commands prompt for the Y coordinate before the X coordinate:
Specifies whether commands prompt for the Easting before the Northing:
Specifies whether commands prompt for the Longitude before the Latitude:
These settings specify the default settings for pressure. Pressure networks can be labeled with pressure information.
Specifies the unit to use:
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.
For information, see the Unitless section of this topic.