Released: May 2010

We released TPC Desktop 2010 in September 2009 (v11.0), but didn’t receive the AutoCAD 2010 drivers from Open Alliance until November 2009.  That’s why we are now releasing v11.5.

Help Topics

State Zones

We’ve added two state Coordinate Reference Systems so you don’t have to. These are typically for a small area within the state and allow for ‘low distortion’ geodetic<=>grid conversions.

Oregon Coordinate Reference System (OCRS)
Wisconsin Coordinate Reference System (WISCRS)
We also added an NAD27 zone for American Samoa 1962 (5300).
We also added Newfoundland 3°MTM NAD83 Zone1 to Zone 6.

To accomodate some of these new reference system, TPC’s Lambert conformal conic projection now supports 1 or 2 standard parallels and zones where both the North and South standard parallels are the same (American Samoa).

Coordinate Reference Systems

V11.5 is more explicit about the Coordinate Reference System used by a survey and any related transformations.

Each geodetic point can now display it’s grid factor and Theta correction angle. You can display these in the Traverse View (new columns) or see them in some of the dialogs.

You can also apply a Theta correction to an individual traverse, just like you already apply a distance factor. The correction is added to each direction in the traverse, so you can display geodetic or grid directions. The amount of the correction is displayed on the status bar and in the printouts, just like the distance factors.

You can apply a project Theta correction to a drawing, just like you can apply a project scale factor to a drawing. Now all line labels (even in the tables) will display geodetic or grid directions.

New drawing variables allow you to insert the drawing’s Theta correction and scale factor automatically.

AutoCAD 2010 Support

Version 11.5 includes the drivers for AutoCAD 2010.  You can now import these files directly into TPC and write files using this new file format.

AutoCAD 2007 – 2009 used the same basic file format. AutoCAD 2010 however, has made significant changes to accomodate Civil3D.  TPC does not try to reproduce all of the Civil3D conventions but it does read / write the files and unsupported entities can always be exploded into their component parts.

TPC is part of the Open Alliance, a consortium of CAD developers that support DWG and DGN files directly. Versuib 11.5 includes the first release of what is now called the Teigha(tm) Development Platform. Future versions of TPC Desktop will use new versions of this platform. It’s the future of CAD interfacing.

Write DGN Files

Version 11.5 writes DGN files directly from drawings.

The DGN files TPC writes are not as complete as the DWG files it writes. Some hatching and line types are not reproduced well in the DGN files. Also, raster images are not always scaled properly. As a result, you may want to try writing a couple of drawings to a DGN file and examining them in your DGN application.

We still recommend writing a DWG file and importing it into your Bentley application.

New Line Label Options

We’ve added an option to include commas as separators when you combine direction, distance and grade on a single line.

We also added new leader options to Split individual items onto separate lines like we do for curve labels or put everything on a Single line. See Control Settings.

Import/Export CAD Surfaces

Version 11.5 imports / exports surfaces from CAD files. In DWG files, PolyFaceMeshes are supported. In DGN files, MeshFaceLoops are supported.

Once imported, a CAD surface is locked so the faces don’t change. Contours are then derived from those locked faces.

Exporting TPC’s surfaces to a DWG or DGN file means that the architect or engineer you are working for will have the surface ready to use when they open your DWG file. They will appreciate the surface information being available this way.

New PDF Driver

Version 11.5 includes an updated Traverse PC PDF driver. It automatically detects 64-bit operating systems and installs properly on them. It also writes better pattern line types, like dashes and dots.

Legal Description

You can now apply the distance factor stored with a traverse to the legal description written from it. Use this to create a legal descriptions in chains, ground distance, etc.

Drawing Data Manager Optimization

The Drawing Data Manager has also been optimized so that it creates searches for drawing information only when an item is expanded. If you expand the Layers node, TPC searches the drawing for layer information. On large drawings, this makes the Drawing Data Manager work much faster.

It also provides additional information for some items like blocks.

Delineate Modified Survey Text

We added a new delineation you can turn on/off in the Drawing View. This one delineates any survey generated labels you have manually edited (modified). You may want to check and make sure these still accurately match the survey data they represent.

It also provides additional information for some items like blocks.

Fixes and Additions

Of course we’ve included all the v11.0 fixes and additions so you are absolutely up to date.