drawing takes for ever to load in civil 3d 2015

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Drawings take a long fourth dimension to open in AutoCAD

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Issue:

When opening a drawing file in AutoCAD, the procedure takes a long fourth dimension. One or more of the following may also occur:

• AutoCAD is frozen while it loads the drawing but recovers when the file opens.
• The program window is blackness or bare while the file opens, making it wait like the drawing content is missing.
• AutoCAD displays Regenerating Model on the command line while the file opens.
• The aforementioned drawing may open up quickly in a different version of AutoCAD and/or on a dissimilar system.
• Slow performance in the file after opening.

Causes:

• Many fastened and/or unreferenced xrefs in the cartoon.
• Cartoon file is stored in a network location which is across a WAN/Net/VPN connectedness.
• OLE objects in the drawing are referenced to a network location and accept been moved, blocked, or otherwise denied access.
• Large amount of constraint nodes are embedded within the drawing.
• AutoCAD Civil 3D is being used or the Ceremonious 3D Object Enabler is installed.
• Drawing contains many 3D solids that have solid history.
• Data corruption.
• Large number of layouts.
• The production license needs to exist verified.
• Circuitous visual style is activated.
• Large number of carve up 3D Solids.
• Corrupt plot manner associated with the drawing.
• Drawings are saved on an unsupported network or a network with connectivity or storage problems.
• Content is spatially distributed over a significant (global) surface area.
• Drawings are exported from a 3rd-political party awarding and invalid objects are removed when opening the file the very starting time time.
• Addin/Plugin is used in AutoCAD.
• Upgrading file beyond multiple iterations of AutoCAD.
• Ceremonious 3D is loading a large amount of point or surface-related information.
• The cartoon contains some Factory blueprint data

Solution:

Install the latest updates for AutoCAD

Meet Install Updates, Add-ons, and Enhancements. For certain AutoCAD versions, in that location are specific hotfixes to install. Refer to the readme file for each of them for further information.

• AutoCAD DGN Hotfix (for AutoCAD 2013/2014). Afterwards, apply the DGNPURGE command to clean the cartoon.
• AutoCAD 2022 SP1 Dynamic Block Regen and Functioning Hotfix
• AutoCAD 2022 SP2 UCS Crash and Layout Operation Hotfix
• Accumulated hotfix 4 for AutoCAD 2022 based products
• AutoCAD Ceremonious 3D is very tedious when working with drawings (this applies as well to any version with the Civil Object Enabler).

Remove the Civil 3D Object Enabler

Uninstall the Civil 3D Object Enabler for AutoCAD.

Remove Addins/Plugins

Uninstall the Addins/Plugins affecting the file open speed for AutoCAD.

Remove extra or invalid search paths

Go into Options to the Files tab and make sure all paths under Back up File Search Path are correct.
Ensure, that all listed network drives are bachelor and tin can be accessed.

Delete temporary files

• Hatch patterns. Enter the HPMAXLINES command and gear up it to 100,000 or less.
• Unload xrefs. Troubleshoot attached xrefs past unloading all of them and then testing each i at a time.
  • Detach unreferenced attachments. It may be that a item xref needs to be remove or detached/reattached, or the xref drawing itself cleaned and repaired (encounter How to repair corrupt AutoCAD files).
  • For fastened raster prototype files, certain TIFF files might need to be converted to PNG.
  • If xrefs are missing, they might accept been saved with an accented path that is now unreachable, and it takes a long time to search for them. Disconnect the network cable from the PC and endeavour opening the cartoon. Disassemble or reference once again missing external references.
  • In AutoCAD, the Reference Manager may be used every bit well (see How to change paths for multiple Xrefs in AutoCAD drawings).
• Intermission OLE links. Enter the OLELINKS command, select the OLE object in the list and click the "Break Link" button, then salvage the drawing. Be aware that by removing the link, the automatic update is lost and changes to the original certificate volition not be reflected in the cartoon.
• Remove constraints. Select all in the drawing and enter the DELCON control. It may also be necessary to change PARAMETERCOPYMODE to 0 (zero) and and then use WBLOCK with the "Entire drawing" option to save a new re-create of the file (or re-create the entire drawing over to a new file).
• Big coordinates. Motion all drawing content closer to 0,0 or use the UCS command to reset the zero point closer.
• Clear and avoid retaining solid history. Select all 3D Solids in the drawing and enter the BREP command. Alternatively, select all 3D Solids and change the History property to None. Then modify theSOLIDHISTvariable to 0 (zero) to avoid retaining solid history on new 3D Solids (run across Tip: Setting the Solid History).
• Edit 2D polylines. For all 2nd polyline objects, set up the Fit/Smoothen property to None or Bend Fit (utilize QSELECT to hands select all 2d polyline objects) using the Backdrop palette. All 2D polylines should be set to the same Fit/Polish property.
• Adapt the file loading. Prepare DEMANDLOAD to 0 (aught) before opening the file and change it dorsum afterwards.
• Hardware Dispatch. Enter the GRAPHICSCONFIG command and plough off hardware acceleration.
• Corrupt or excessive layouts. Reduce the number of layouts, the fewer the ameliorate. Repair corrupt layouts by rebuilding them or repairing them.
• Large number of Scales. Resetting the scales list will return it to the default choices along with any others that are referenced (run across Warning: "This drawing contains a large number of annotation scales" when opening a file in AutoCAD).
• Fields. Set the variable FIELDEVALS to 0. If the drawing opens more rapidly, information technology is related to field configurations which tin can non be found.
• Recover, make clean and repair the cartoon. This likewise applies to fastened drawings (come across How to repair corrupt AutoCAD files).
• Utilize a more than recent template. If the cartoon opens in an older version, try the following:
  1. Open up a blank cartoon file using a template from a newer software version.
  2. Type INSERT and press Enter.
  3. Click on Scan and select the drawing.
  4. Uncheck Specify On-screen and verify that the insertion betoken is ready to (0,0,0).
  5. Bank check Explode.
  6. Click on OK.
• Save the drawing to a newer format (for instance 2022 instead of 2013).
• Try opening the drawing in a second example of the programme.
• Prune xrefs. For big attachments, consider clipping the xrefs to show only the sections needed.
• Large image attachments. Utilise an paradigm editing programme such every bit Paint or Photoshop to reduce the size of the image, reducing the overall file size, and then scale up the image inside the drawing.
• Embed image attachments. Instead of linking images as attachments, use PASTESPEC in AutoCAD to embed them. Open the image in Paint, select all (CTRL-A) and and so re-create (CTRL-C), so use PASTESPEC in AutoCAD and pick "Paintbrush Picture."
• Large number of separate 3D Solids.Employ command UNION to reduce the count of 3D Solids.
• Remove corrupt plot mode and replace with a working copy of the plot style.
• Loading large amounts of COGO point information in Civil 3D. EncounterDrawings open slowly in AutoCAD Civil 3D showing "Upgrading COGO Points".
• In one case the drawing opens, EXPORTTOAUTOCAD  (Control) to convert to an approved Autodesk DWG

Products:

AutoCAD for Mac; AutoCAD LT for Mac; AutoCAD Products; DWG TrueView;

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Source: https://knowledge.autodesk.com/support/autocad/troubleshooting/caas/sfdcarticles/sfdcarticles/drawings-take-a-long-time-to-open-in-autocad.html