Civil 3D 2018: What’s New

Another year has come and gone, but it brings forth new technology and excitement to dive into. In this blog, I will cover the new features of Civil 3D 2018.

The first thing I want to mention is the new drawing format. I think many of you became spoiled with the backward compatibility that Civil 3D offered with versions 2013-2016. Let’s face it; Civil 3D was NEVER backward compatible until the aforementioned versions. So, what’s the big deal, right? All the AutoCAD based products have this new format. If you’re moving to 2018, make sure you are willing to stay on 2018.

So let’s take a look at these nice new features…

Drawing format

Below you will see that nice, new drawing format:

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Offset Profiles

You can create dynamic offset profiles using the same command you use to create offset alignments. The profile geometry is offset using a default cross slope which you can modify by editing the profile properties.

In the offset profiles the geometry of the parent profile is replicated in cases where there is a consistent cross slope from the parent profile. For example, a vertical curve in the parent profile is a vertical curve in the offset profile when the cross slope that is specified for those stations is consistent, as shown in the following illustration.

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Note: Vertical curves in offset profile geometry are tessellated as multiple straight segments as shown below when the profile is superimposed onto another profile view. For reviewing and editing the offset profile geometry, insert the offset profile into its own profile view by using the Create Profile View command and selecting the offset alignment.

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In areas of the offset profile where there are vertical curves and there is a transition between one cross slope to another cross slope, as specified in the Offset Parameters tab of the offset profile properties, the vertical curve geometry that was replicated from the parent profile will not be preserved. Instead, straight lines are added between control points to approximate the curve as shown in the following illustration.

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Offset profiles are created in a dynamic state by default. A dynamic offset profile automatically updates to reflect changes in the elevation or geometry of the parent profile and parent alignment. When an offset profile is dynamic, you can add cross slope regions on the Offset Parameters tab, but the profile geometry cannot be edited.

You can change the update mode for an offset profile on the Profile Data tab of the Profile Properties dialog box.

Relative Feature Lines

Feature line elevations can be obtained from a surface and can also be relative to a surface, so if the surface is updated, the feature line is updated.

The update behavior of relative feature lines is different depending on whether the feature line was set to be relative to a surface when it was created, or whether it was created at absolute elevations and then set to be relative.

The following illustration shows a feature line in green drawn so that it is follows the surface elevations (shown in a dashed gray line) at a positive elevational offset. This feature line was created so that it is relative to the surface.

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If the surface is edited, the feature line is updated automatically and maintains the elevational offsets, as shown in the following illustration.

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Behavior of feature lines created at fixed elevations, and then set to be relative
The following illustration shows a feature line that was drawn at fixed elevations with no relationship to the surface. If the surface below it is edited, the feature line elevations will not update.

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The feature line is then set to be relative to the surface. This creates a relationship between the feature line and the surface but does not reset the feature line elevations to follow the surface.

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However, the relative elevational offsets between the feature line and the surface will now be maintained if the surface is edited, such as if the elevation is lowered, as shown in the following illustration.

Note: Feature lines created at fixed elevations, or from grading objects, or that were draped on a surface but not relative to it all share the behavior described in this section if they are subsequently set to be relative to a surface. If you want to reset the elevations of feature line to fully follow a surface, you can use the Elevations from Surface command.

Using relative feature lines as data in surface definitions:

  • If you want to use a relative feature line as breakline or boundary data in a surface, make the feature line relative before defining it as a breakline or a boundary. A non-relative feature line that is defined as data in a surface cannot be made relative to any surface.
  • If a relative feature line is defined as breakline or boundary data in a surface, its relative surface association cannot be changed.
  • Avoid adding a relative feature line as a breakline or a boundary to the same surface to which it is relative.
  • Issues can occur as a result of circular dependencies if feature lines that are relative to different surfaces are then added as breaklines or boundaries to each other’s surface definitions. For example, if Feature Line 1 is relative to Surface 1, and Feature Line 2 is relative to Surface 2, issues can occur if Feature Line 1 is defined as data in Surface 2 and Feature Line 2 is defined as data in Surface 1. In such a situation, rebuilding each of the surfaces will cause the other one to become out of date.

Editing relative feature lines:

Feature line editing commands are supported for relative feature lines.

When you open the Grading Elevation Editor for a feature line that is set to be relative to a surface, you will see the selected surface listed in the Grading Elevation Editor, and the editable feature line points will be shown as being relative to the surface.

You can specify relative elevation options by using the following features in the Grading Elevation Editor.

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For a feature line that was not previously set to be relative to a surface, when you open the Grading Elevation Editor and then select a surface from the Relative to Surface list, the Elevation Derived From column is initially set to Absolute Elevation for all points and does not automatically change to Relative to Surface. Use the drop-down list to select Relative to Surface for the points that you want to be relative.

Updating elevation points on a relative feature line:

When you create a feature line and assign elevations based on a surface, you can select the Insert Intermediate Grade Break Points check box. This creates elevation points along the feature line where the feature line crosses surface TIN lines. These points are shown as green circles in the following illustration.

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If you edit or otherwise move a relative feature line, or if the surface it is relative to is updated, elevation points are not automatically added or removed on the feature line to match the surface TIN lines, as shown in the following illustration.

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You can update the elevation points on the feature line by using the Insert Elevation Point and Delete Elevation Point editing options in the Grading Elevation Editor or on the Edit Elevations panel of the Feature Line ribbon tab.

Connected Alignments

You can use the connected alignments feature to create an alignment that transitions between two intersecting alignments and to create a profile that transitions between their profiles.

You can use this feature to create a curb return, an exit ramp, a merging/diverging road, or you can connect an existing road with a proposed road.

The connected alignment is created between the two intersecting alignments at a specified radius.

The geometry of the connected profile is automatically generated from the parent profiles that you select. The start and end elevations and slope are taken from the parent profiles, and the middle section of the connected profile is calculated depending on whether extensions of the parent profiles intersect.

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Editing the geometry of a connected alignment or profile:

When you create a connected alignment and associated profile, by default they are set to dynamic state, which means that they will partially update if their parent alignments and profiles change. You can change the update mode to static if you want to prevent any updates from occurring and if you want full editing control over the alignment and profile.

  • The geometry of the overlapping parts on both the connected alignment and profile is locked to the parent alignments and profiles when in a dynamic state and cannot be edited. These overlapping segments will update if the parent alignments and profiles update.
  • The stations between the overlapping parts of a dynamic connected profile can be edited.
    Important: This area will not be dynamic to the parent alignments and profiles and will not update if they update.
  • A dynamic connected alignment can be edited in the following ways:
      1. Radius: You can use the circular grip at the center of the curve to edit the curve radius, or you can specify a different radius value on the Connection Parameters tab of the Alignment Properties dialog box.
      2. Overlap: You can use the diamond-shaped grips at the ends of the connected alignment to increase or decrease the overlap. 

Note: Editing the geometry of a connected alignment in the Layout Parameters window is not supported.

You can change the update mode for a connected alignment on the Connection Parameters tab of the Alignment Properties dialog box.

You can change the update mode for a connected profile on the Profile Data tab of the Profile Properties dialog box.

Corner Cleanup for Corridors

At some locations on corridor models, the corridor links can cross each other, resulting in bowtie-like configurations.

The following illustration shows a corridor with a bowtie configuration at the corner.

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Automatic and command-based corner cleanup:

In some situations, such as where corridor tangents intersect at a corner, and where the corridor is created at a fixed width, bowties can be cleared automatically. You can control which types of bowtie intersections are cleared automatically by changing the Automatic Clear Bowtie Options in the Edit Feature Settings – Corridor dialog box.

In other situations, such as when the corridor is created at a variable width (such as when daylighting to a surface), you can use the Clear Corridor Bowties command.

Conditions where automatic corridor cleanup behavior is applied:

The automatic AutoCAD Civil 3D corridor cleanup behavior can be applied at tangent-tangent, tangent-curve, and tangent-curve-tangent intersection locations in corridors that use feature lines or alignment/profiles as baselines, and the assemblies have consistent widths as set by shapes within the assembly.

For example, where corridor tangents intersect at a corner, and where the corridor is created at a fixed width, the corners are cleaned up as follows:

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The point where the inner corners meet is calculated and radial lines are extended from that location, using the insertion frequency along the baseline as defined in the Frequency to Apply Assemblies dialog box.

In addition, one station is also added at the corner if the At Horizontal Geometry Points option is selected in the Frequency to Apply Assemblies dialog box:

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The subassembly width value is overridden at the radial stations; the width is calculated to produce a corner solution that is similar to the AutoCAD Offset command.

For more examples of automatic corner cleanup, see “Corner cleanup examples” below.

Note: You can control which types of bowtie intersections are cleared automatically by changing the Automatic Clear Bowtie Options in the Edit Feature Settings – Corridor dialog box. By default the option to clear bowties at tangent-tangent intersections is set to Yes and the option to clear bowties at tangent-arc and arc-tangent intersections is set to No. If you choose not to enable the Automatic Clear Bowtie Options for fixed width corridors, you can use the Clear Corridor Bowties command on those corridors.

Using the Clear Corridor Bowties command:

Use the Clear Corridor Bowties command in the following conditions:

  • In conditions where corridor shapes widen (for example, where the footing in a retaining wall has a variable width which depends on the retaining wall height).

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  • When daylighting to a surface.

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For more examples of command-based corner cleanup, see the following section.

Corner cleanup examples:

The following table shows different corridor corner examples which can occur in fixed width and variable width corridors.

  • If automatic is listed in the table as the cleanup type it means that for new corridors the clean up occurs automatically. If you are bringing forward such a corridor from a prior version of AutoCAD Civil 3D, and the corners need to be cleaned up, you can simply make an edit to the corridor (such as a change to the corridor properties) and then rebuild it.
    Note: You can control which types of bowtie intersections are cleared automatically by changing the Automatic Clear Bowtie Options in the Edit Feature Settings – Corridor dialog box. By default the option to clear bowties at tangent-tangent intersections is set to Yes and the option to clear bowties at tangent-arc and arc-tangent intersections is set to No. If you choose not to enable the Automatic Clear Bowtie Options for fixed width corridors, you can use the Clear Corridor Bowties command on those corridors.
  • If command-based is listed in the table as the cleanup type it means that corner cleanup can be done using the Clear Corridor Bowties command.

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Corner elevation value after clearing a bowtie:

The elevation value that is used for the corner after bowtie resolution is obtained from one of the inner points of the bowtie as shown in the following illustrations.

The following illustration represents a corner prior to clearing the bowtie. The corridor baseline is shown in red.

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The following illustration represents a corner after clearing the bowtie.

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Points 3 and 4 are moved to the location of point 5, and the elevation of point 4 is now used in that location. The locations and elevations of points 1 and 2 are unchanged.

Resolving other corner cleanup issues:

Corner cleanup does not get applied at the end point of a closed feature line-based corridor if the start and end of the feature line meet at the corner, as shown in the following illustration on the left.

To work around this, it is recommended that you draw the feature line so that it starts and ends at a location other than a corner as shown in the following illustration on the right.

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To resolve other corner cleanup issues that are not cleaned up automatically and which cannot be addressed with the Clear Corridor Bowties command, you can extract a dynamic feature line from the corridor and use the grading tools to grade from that feature line. The following is an example of adding grading to the right side of the corridor.

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Move Section Views to a Different Section View Group

You can move one or more section views into a specified section view group.

  • The section views that you want to move and the destination section view group must share the same sample line group.
  • Section views can be moved from the individual section views collection to a section view group, or from one section view group to another section view group.
    Note: Section views cannot be moved into the individual section views collection.

When you move section views to a different section view group, the following occurs:

  • The section views are inserted into the section view group in order of their stationing. They are inserted between existing section views in the group as needed so all the section views are in order.
  • If the styles are different, the section views you are moving can keep their existing styles, or they can use the style of the destination section view group.

In the following example, an individual section SL-25 needs to be moved into the section view group. Its station is 1+75 so it will be inserted between the sections for station 1+50 and 2+00.

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The following illustration shows the section view inserted into the section view group. You can choose to keep the existing stylization, as shown in this example, or you can choose to apply the stylization of the destination section view group to the moved sections. The section view for station 3+00 was moved to the next sheet.

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Section View Drafting Buffers

Section views are created with drafting buffers. When you add AutoCAD annotation or drafting elements or AutoCAD Civil 3D note labels within or crossing the drafting buffers, they are bound with the section views, and are moved with the section views if they are moved.

In the following illustration, the drafting buffers around the section views are shown in magenta. Drafting elements that were added to the sheet are shown in red.

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When the section views for station 2+50 and 3+00 are moved up or off the sheet, the drafting elements that are inside the drafting buffers are moved with the section views. The text that notes the lane slope is not moved because it was outside the drafting buffer area.

Binding drafting elements with a section view:

Drafting elements become bound to a section view when they are added or modified within or crossing the drafting buffer.

  • Any new or existing drafting elements that are added or moved within or crossing a drafting buffer become bound to the section view.
  • If you make a drafting buffer larger to encompass or cross existing drafting elements, those drafting elements become bound to the section view after you make an edit to them.
  • If you make a drafting buffer smaller, drafting elements that were previously inside or crossing the drafting buffer remain bound to the section view until you make an edit to them.

Drafting buffer grips:

You can use the grips on a drafting buffer to increase or decrease its size. The following illustration shows the grips and the value of the right drafting buffer margin (50.0000) when you hover over that grip. You can select the grip and drag it to resize the drafting buffer, or you can and enter a new value at the command line.

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Note: Resizing a drafting buffer after drafting elements already exist does not automatically change the binding behavior of the drafting elements relative to that drafting buffer. For more information about the binding behavior, see “Binding drafting elements with a section view” above.

Settings and styles related to drafting buffers:

Settings and styles that impact drafting buffers are as follows:

  • CreateSectionView and CreateMultipleSectionView command settings: Use the Drafting Buffer settings to control the initial margins of the drafting buffers when the section views are created. For more information, see Edit Feature Settings – Section View Dialog Box.
    Note: After a section view is created with a drafting buffer, you can grip edit the drafting buffer to change its size.
  • Array tab of the Group Plot Style dialog box: Use the Add Drafting Buffer Size to Space Between Views setting to control whether the column and row spacing is applied between the edges of the drafting buffers or between the edges of the section views.
  • Display tab of the Section View Style dialog box: Use the Drafting Buffer Outline setting to control the appearance of the drafting buffer.

Behavior when changing the direction of section views or deleting section views:

Changing the direction of section views that have drafting elements

If you edit the style of a section view so that the section view direction changes, the drafting buffer is changed to accommodate the new direction, but the drafting elements that are inside or crossing the buffer are not moved. If this results in existing drafting elements being displayed outside of the buffer, the drafting elements will still be bound with the buffer unless you move them to a different location outside the drafting buffer. For more information about the binding behavior, see “Binding drafting elements with a section view” above.

Deleting section views that have drafting elements

If you delete section views that have drafting elements within a drafting buffer, you have the option to delete the drafting elements or preserve them. A task dialog box is displayed with options you can select.
Note: If you select the Always Use My Selection in the Future check box in the task dialog box, and you want to change the behavior in the future, you can edit the Hidden Messages Settings on the System tab of the AutoCAD Options dialog box.

Plan-Plan/Profile-Profile Sheets

Two new templates for Plan Production have been added for Plan over Plan and Profile over Profile…

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Autodesk InfraWorks Ribbon

The new Autodesk InfraWorks ribbon has more options than before. See illustration below…

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There are some more new features in this release. I will hold off posting them for now. Stay tuned for more features, tutorials, and webinars.

May Civil User’s Group

HOUSTON

USER GROUP

Wednesday, May 4th

6pm – 8pm

Location: Total CAD Systems, Inc. Office

480 N. Sam Houston Pkwy. E., Suite 234

Join us at the next Houston Civil User Group as our Autodesk Expert Elite, Todd Rogers, takes you through the new features of the latest release of Civil 3D 2017. Ryan Caudell with CAD Support Plus will also present how to add a mile post label to an alignment label set, including a custom expression which calculates each mile along the alignment.

Network with your peers and share your ideas while discovering tips & tricks and some new features. Pizza and refreshments will be provided.

 

 

Civil User’s Group

Last month’s Civil User’s Group was a great success.  We decided on having it once a month. However, this month is pretty hectic for me to collaborate with all of you. So, what we are doing from now, going forward, is we are going to hold the User’s Group the first Wednesday of the Month starting in May. 

Please give me feedback with you opinion or argument about the date. It will still be held from 6pm – 8pm. The location is still pending.  I will keep you updated with where it will be held next.

Hope to see you there.

Civil 3D User’s Group

We are throwing around the idea to sponsor a Civil 3D User’s Group here in Houston.  I have received a lot of feedback from several people that want to attend or host this. 

If you will, please fill out the survey below so we can get an idea of how many would attend and what they would want to have covered.

Now that we are part of the Graitec family, we have the options to have software developed in house.  Having said that, we want your feedback at the first user’s group on a Civil PowerPack.  This would be an add-on for Civil 3D with tools to better help your performance and also adhere to some of the standards that the software does not currently support.

Thanks for you input and hope to see you soon!!

Click here to take the survey.

AutoCAD Civil 3D 2016

Check your new Subscription site (manage.autodesk.com) to download your 2016 version of Civil 3D.

The new features below, come from the Civil 3D 2016 help guide…

New Features in Autodesk® AutoCAD® Civil 3D® 2016

Autodesk® AutoCAD® Civil 3D® 2016 contains the following new features and enhancements.

Integration of the Autodesk Point Cloud Surface Extraction 2015 Feature
  • The Create Surface From Point Cloud command has been integrated and is now available on the ribbon. The command now provides the ability to adjust the default distance between points in order to change the percentage of points that will be included in the surface.
Integration of the Autodesk AutoCAD Civil 3D 2015 Productivity Pack 1 Features

The following features in the Autodesk AutoCAD Civil 3D 2015 Productivity Pack 1 have been integrated:

Catchments
Corridors
  • An option is now available for selecting alignments by layer to use as width and offset targets for corridors.
Data Exchange
Data Shortcuts
Labels
Sections
Vault

New Features in the Autodesk® Subassembly Composer for Autodesk® AutoCAD® Civil 3D® 2016

AutoCAD Civil 3D 2015 Productivity Pack 1

Autodesk has released it’s Productivity Pack for Civil 3D 2015.  This productivity pack contains the following:

  1. Ability for AutoCAD Civil 3D users to directly read Autodesk InfraWorks models for detailed design / production tasks
  2. Coordinate Geometry Editor utility that provides a streamlined process for point, line, and curve entry and balance
  3. Automated process for creating AutoCAD 3D solids from Civil 3D surface models and pipe networks

You can download the productivity pack by logging into the Autodesk Subscription site.

AutoCAD Civil 3D 2015 SP1 Released

Autodesk has released AutoCAD Civil 3D SP1.

The README file states:

The following issues have been resolved in Autodesk AutoCAD Civil 3D 2015 Service Pack 1:

Corridor Modeling and Analysis

  • A data-specific issue has been resolved where attempting to rebuild a corridor would cause the application to close unexpectedly.
  • An issue has been resolved where material take off would compute only half of the areas of the materials when more than one baseline existed.
  • An issue has been resolved where the corridor feature line areas were not using the code set styles assigned to the corridor.
  • An issue has been resolved where the elevation target in the DaylightBasin and DaylightBasin 2 subassemblies was incorrectly solving for the basin elevation.
  • An issue has been resolved where the German Country Kit assembly GermanSA_Fahrbahn_ausserorts was missing the feature line on the right side in a cut terrain situation.

Pipe Networks and Pressure Networks

  • An issue has been resolved where data-referenced gravity pipe network styles were reset when the source model was updated and the network was synchronized.
  • An issue has been resolved where data-referenced pressure network styles were reset when the source model was updated and the network was synchronized.
  • An issue has been resolved where pressure networks were not created properly when using the Create Pressure Network from Industry Model command.
  • An issue has been resolved where an invalid part and/or pipe style within a pipe network would cause the application to close unexpectedly.

Alignments and Profiles

  • An issue has been resolved where editing an alignment when another profile had been superimposed onto its profile would cause the application to close unexpectedly.
  • An issue has been resolved regarding the adjustment of the profile station range when creating a profile after creating and deleting an unrelated alignment.

Survey

  • A utility which provides the ability to save an AutoCAD Civil 3D 2015 survey database for use in AutoCAD Civil 3D 2014 is included in this service pack. This utility can be accessed from the AutoCAD Civil 3D Toolbox after installing this service pack.
  • An issue has been resolved where attempting to delete a survey figure from the Figures Editor would cause the application to close unexpectedly.

Grading and Surfaces

  • An issue has been resolved where deleting all grading projections and repeatedly running the UNDO command would cause the application to close unexpectedly.
  • An issue has been resolved where deleting points from a surface when the DACH Extension is installed would cause the application to close unexpectedly.
  • An issue has been resolved where draped images that were rendered when hardware acceleration was turned on would be mirrored.

Miscellaneous

  • An issue has been resolved where a description was not included from a data-referenced source object.
  • An issue has been resolved where unexpected characters and text was added to objects in a drawing and within any drawings that were opened during the AutoCAD Civil 3D session.
  • An issue has been resolved where starting AutoCAD Civil 3D in zero document state startup mode would cause the application to close unexpectedly.
  • An issue has been resolved where the correct CODES file was not being read from the registry.
  • An issue has been resolved where modifying an object on a locked layer would cause the application to close unexpectedly.
  • An issue has been resolved where a curve label would show its content reversed when located at 0 and 180 degrees in a drawing.
  • An issue has been resolved where the Print button in the Hydraflow Express Rainfall IDF Curve dialog box would not work properly.

Download here.

Civil 3D 2014 Service Pack 2

Autodesk has released it’s Civil 3D 2014 Service Pack 2.

The following issues have been resolved in Autodesk AutoCAD Civil 3D 2014 Service Pack 2:

Corridor Modeling and Analysis

  • An issue has been resolved where corridor materials were not being calculated for both sides of a roadway and in cases where there were corridors with multiple, non-parallel baselines.
  • An issue has been resolved with the SampleLineGroup.Create() API method.
  • An issue has been resolved where corridor solids were not exported to original coordinates.
  • An issue has been resolved where corridor solids were not exported properly for corridor links.
  • An issue has been resolved where corridor solids were not exported properly for specific areas of intersections.

Pipe Networks and Pressure Networks

  • An issue has been resolved where alignments were not created properly from a pressure network that had branches.
  • An issue has been resolved where parts from a custom part list were resizing to the smallest part in the part family when subsequent parts were added.
  • An issue has been resolved where data-referenced gravity pipe network styles were reset when the source model was updated and the network was synchronized
  • An issue has been resolved where pressure networks were not created properly when using the Create Pressure Network from Industry Model command.
  • An issue has been resolved where the height of the first structure in a gravity pipe network was not set properly when using a 3D polyline as the selected object.
  • An issue has been resolved where gravity pipe and structure collections could not be selected in the Prospector tree.

Alignments and Profiles

  • A data-specific issue has been resolved where profiles were shifting when an AutoCAD Civil 3D 2012 drawing that contains profiles was opened in AutoCAD Civil 3D 2014, which resulted in a change in stationing.
  • An issue has been resolved where the cursor appeared to be offset from its actual location when laying out and editing a profile.
  • An issue has been resolved where the geometry curve lengths for rail alignments could not be edited in the tabular editor.

Miscellaneous

  • An issue has been resolved where turning off the navigation bar and ViewCube would result in lineweights not being applied properly during plotting for certain AutoCAD Civil 3D objects.
  • An issue has been resolved where unexpected characters and text was added to objects in a drawing and within any drawings that were opened during the AutoCAD Civil 3D session.
  • A performance issue when logging into Autodesk® Vault from AutoCAD Civil 3D 2014 has been resolved.
  • An issue has been resolved where the Transformation Grid Scale Factor was not applied properly for ground coordinates when using the Geodetic Calculator.
  • An issue has been resolved where the Print button in the Hydraflow Express Rainfall IDF Curve dialog box would not work properly.
  • An issue has been resolved where pay item formulas were not properly incorporated into take off.
  • An issue has been resolved where special characters in an AutoCAD Civil 3D object name would cause an issue when an IMX file that contained these characters was imported into Autodesk® Infraworks™.
  • An issue has been resolved where the north arrow was not being rotated properly when using the Plan Production tools.

Download here.

A Practical Guide to GIS in Civil 3D 2014

Rick Ellis is at it again!  He has published a new book for using GIS in Civil 3D 2014.

This book teaches you the tools available in AutoCAD Civil 3D 2014 to work with GIS data.  You need to understand how leveraging GIS data can enhance your civil engineering design efforts, while satisfying the ever increasing requests to provide it at the end of design process.  

Each lesson contains concepts, principles and exercises to provide you with the background and foundation of knowledge that you need to effectively apply these features directly to your job tasks. You work through real world exercises to reinforce your understanding of incorporating GIS data into common tasks that other Civil Engineering and Surveying professionals are performing in the workplace every day. 

Please check out the web page for this book located here.