Civil 3D 2012 SP 2.1发布了

这个SP适用于各种语言的版本，下载地址：

http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=20310611&linkID=9240698

具体更新内容参考readme：

The following issues have been resolved in AutoCAD Civil 3D 2012 Service Pack 2:

Alignments

Creating spiral curve using the Design Criteria: Tan-Tan with Curves no longer results in the application closing unexpectedly.
Applying a Curve-Line-Curve transition to the end of a curve no longer results in the second curve doubling back on itself.
An error is no longer generated when modifying a station equation with overlapping values.

API

AddPointGroup to Surface on .NET no longer generates an error.
Aeccxuilandloader and AeccSvrLoader no longer generate errors when hovering over some Civil 3D entities with rollover tooltips are enabled.

Catchments

Creating a Catchment from Object with pickfirst turned on no longer causes the application to close unexpectedly.

Cogo

The COGO Editor now reports the correct traverse length when using 2 distance unknowns.
The COGO Editor now retains entries in the description field.

Corridor Design

Using the Drive command on a Feature Line object no longer causes the application to close unexpectedly.
An issue where a change to the Offset End Station resulted in an unusable drawing has been resolved.
Switching between drawings while Station Tracker is enabled no longer causes the application to close unexpectedly.

Corridor Volumes

Volume calculations using sample lines and section views provide more consistent results.

Cross Section Views

Performance when using the Change Band Set selection tool in the Section View Group Properties dialog box has been improved.
Opening a Civil 3D 2010 drawing containing the OverlayAndMill subassembly in Civil 3D 2012 no longer results in a display issue with the section views.

Cross Sections

The right side of a Sample Line is now visible to the Intersection or Apparent Intersection Osnap commands.
Referenced Cross Section Labels whose placement has been modified no longer revert back to original their location after reloading the XREF.

Data Exchange

An imported Structure will now use the expected dimension rather than the dimension of the first Structure of the imported group.

Feature Lines

Stability when grip editing a Feature Line has been improved.
Creating Feature Lines from objects when the objects are overlapping closed polylines no longer causes the application to close unexpectedly.

General/Other

The stability of the Audit command has been improved.
A memory issue that prevented opening some drawings from previous releases has been resolved.
An issue that caused an error when closing a drawing has been resolved.
Renaming a layout while the Sheet Set Manager is open no longer displays an error message in the command line.
The display of custom linetypes has been improved.
Right-click menus from Prospector have been updated to resolve display issues.

Grading

An error while using the Grade to Surface command has been resolved.
Saving a drawing after running the Automatically raise/lower to balance the volumes command no longer causes the application to close unexpectedly.

Hydraflow Express and Hydraflow Storm Sewers

The following issues related to Inlet calculations and reporting have been resolved:
- Inlet Calculations have been clarified to match HEC-22 requirements.
- Combination inlets in sag conditions now report expected depth and spread results.
- Slotted drains in sag condition no longer display the gutter spread and gutter depth values as bypass in reports.
- Slotted drains in sag condition now calculate expected depth and spread values while transitioning between weir and orifice flow.
- Open Area Design calculations are now less than or equal to the product of grate length and width.
- 3D images for Inlets without depression specified no longer depict a local depression.
- 3D images for Inlets with local depression now depict the correct grate slopes.
- Section images for on-grade inlets now depict the expected results for the entire spread.
- Inlet efficiency is now calculated as expected when the frontal flow width is less than the gutter width.

Hydraflow Storm Sewers

Storm Sewer calculations have been clarified to follow methodologies according the HEC-22.
Storm Sewers using HDS-5 inlet control option now report expected results.
The following issues related to Inlet calculations and reporting have been resolved:
- Inlets with no tributary area now report expected flow capture results.
- Gutter depth and spread no longer calculate as negative values.
- Inlet Section Views now correctly show the grate slope when there is local depression.
- Inlet Section View display shows spread correctly in 2D when depression is ignored.
- A column in Interactive Designer is now labeled "Local Depression" to be consistent with the data-entry field.

Hydraflow Express

Text in images exports clearly.
Channel calculations for gutter channels now match the gutter calculations performed for Inlets.
The following issues related to Inlet calculations and reporting have been resolved:
- Gutter depression values can now be set to zero.
- Manning roughness n-value default for gutter sections has been set to 0.016 for Inlet calculations.
The following issues related to Culvert calculations and reporting have been resolved:
- Culvert calculations clarified to match HDS-5 requirements.
- The Manning roughness n-value list for Culverts now includes values up to 0.035 to match HDS-5.
- Circular culverts now report consistent tailwater results as expected across a flow range.
- Box culverts under outlet control now report expected headwater values.
- Horizontal elliptical pipes now report expected headwater values.
- Elliptical Culvert calculations now report expected headwater values above the crown of the pipe.

Hydraflow Hydrographs

Resizing column widths no longer revert to original size.
Correct dates are now printed in report data.
Hydrograph plots are now displayed correctly on computers running Windows XP 32-bit.

Inquiry

Switching between drawings with the Profile View inquiry, elevation & grade between two points command active no longer causes the application to close unexpectedly.

Intersection

An issue with Offset Profiles that resulted in unexpected results when creating an intersection has been resolved.

Labels

An issue where referenced Pipe Spanning labels list the incorrect distance after reopening a drawing has been resolved.
Cogo Point labels in drawings from a previous release now retain rotation properties.
An issue where referenced Pipe Network Labels in section view disappear after reopening a drawing has been resolved.

LandXML

Importing a Pipe Network with structures deselected no longer causes the application to close unexpectedly.

Lines and Curves

The Deflection-Distance transparent command now supports angles less the zero.

Parcels

An error when creating a parcel using the Slide Line Create command has been resolved.

Pipe Networks

Opening drawings with external references no longer causes the application to close unexpectedly.
Selecting a pipe part while creating a Profile View no longer causes the application to close unexpectedly.
Creating a Pipe Network while the Panorama is open with a deleted network no longer causes the application to close unexpectedly.
Solid hatching now displays as expected on curved pipes.
Solid hatching now displays as expected in Profile Views.
Synchronizing a Pipe Network with a part swapped in the source drawing now changes updates the style as expected.
Setting a template with custom optional Pipe Network parameters as the default template no longer returns an error message.
Displaying large numbers of Pipe Network parts in Prospector is no longer causing slow performance issues.
Issues recognizing the correct Manning roughness n-value for parts has been resolved.
Issues setting and retaining a structure's On Grade / On Sag setting have been resolved.
Pipe length data is now available in structure tables displaying connected pipes.

Plans Production

An issue where superimposed profiles are not transferred to view frames in a referenced drawing has been resolved.

Points

Moving a Point using Osnaps now changes the point elevation.
Assigning user-defined properties to a Point Group from the summary tab no longer results in the application closing unexpectedly.

Profile View

Dragging a Profile Label to the end of a Split Profile View using Osnap no longer results in the application closing unexpectedly.

Profiles

Offset Profile geometry has been updated to provide better results when sampling and labeling.

Project Management

Drawings with circular dependencies now generate a prompt when being checked in.

Quantity Takeoff

A calculation error when using formulas has been corrected.
Alignments can now be assigned as a pay item.
The Pay Item and Pay Item Categorization files now default to the previously browsed path.

Shortcuts

Performance when opening a drawing containing references has been improved.

Surface

The Drape Image command no longer results in a reversed image when hardware acceleration is enabled.
Creating a surface mask while in wireframe view style no longer results in the application closing unexpectedly.
The accuracy when calculating surface volumes has been improved.
An issue where adding a 3D polyline as a surface breakline causes the application closing unexpectedly has been resolved.
Watershed analysis calculations are now launched when the Run Analysis button is selected.

Survey

Transformation Settings no longer change when migrating a previous release drawing.

The following issues have been resolved in AutoCAD Civil 3D 2012 Service Pack 2.1:

General/Other

Drawing stability when closing drawings containing data references has been improved.
An issue where alignments do not plot according to the STB plot style has been resolved.

Hydraflow Storm Sewers

An issue where running a default analysis with design mode in Hydraflow Storm Sewers causes the application to close unexpectedly has been resolved.

Hydraflow Hydrographs

The Hydrograph Types tab now displays the full list of hydrographs.

Pipe Networks

Referenced network section view labels for pipes and structures are no longer lost when exiting the application and reopening the drawing.
Referenced pipe network styles retain changes as expected when the drawing is saved and re-open

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