Working with Large Survey Files

In this chapter, you'll learn how to work more efficiently with large surveys.

Progress Indicator

Begining with TPC Desktop 2016 R2, you'll see the progress of many program operations displayed in the status bar at the bottom of the program. This progress indicator doesn't make TPC run faster, but it does let you know how TPC is doing.

The indicator tells you what TPC is doing and counts through the items involved in the operation, updating the count at specified increments like 10, 100 or 1000.

For example, when TPC is computing a surface for a drawing, it will display Computing Triangles 5000. You know from this indicator that TPC is currently computing the triangles in the TIN and has already computed 5000 triangles.

Large Survey File Message

If you open a large survey file, TPC tells you that the survey is large and offers a link to this help topic.

Choosing one or more of the options below will improve your TPC experience with the survey.

Don't display current drawing when opening a survey

By default, when you open a survey, TPC displays the current drawing.

When you turn this option off, TPC opens the survey but does not automatically open the Drawing View. You can still open the current drawing manually, simply by opening the Drawing View.

This program setting option is new in TPC Desktop 2016.

Disable Auto-synchronizing of views

By default, changing survey data in any of TPC views or dialogs updates the survey data in the other views and dialogs. For large surveys, this can cause TPC to pause each time it performs these updates.

You can reduce these pauses by modifying how the views are synchronized.

This option updates a view only when you click on the view to activate it, at which time you may experience a small pause for lage surveys as TPC updates just the survey data in that view.

TPC Desktop 2016 R2 optimized both the Points Manager and the Traverse View to open almost instantaneously for large surveys, but other views like the Closure View and Drawing View may experience slower refreshes with large surveys.

Disable accent color in drawing view

By default, passing the cursor over an object in the Drawing View redraws that object in an accent color. This provides a quick and easy way to see the extent of that object. However, this causes the Drawing View to run slower for large surveys.

You can disable this option and choose one of the other options for selected objects like Tooptips or a 4-sided arrow, which do not slow down the Drawing View.

Extend Autosave Time

By default, TPC autosaves your survey every 10 minutes. For large surveys, this will pause the program each time the autosave is performed. You can extend the autosave time so TPC doesn't autosave as often. We suggest extending this to 20 or 30 minutes for large surveys.

Ignore Layers

You can always ignore layers you are not using in a drawing. This speeds up the Drawing View because it doesn't test to see if the cursor is over any objects on ignored layers.

Turn Off Point Label Pulldown

As you enter a point label in most dialogs, like the COGO dialogs, TPC displays matching poitns in a pulldown list. Each character you type changes the list to narrow or expand the matches. In the Miscellaneous Program Settings dialog, you will find options to turn this pulldown off and change the number of characters required to activate it.

For large surveys, consider turning this option Off or setting the characters typed to something larger, like 3 or 4.

SSD Drives

Your experience with TPC and large surveys will be greatly improved if you read/write survey files from a Solid State hard Drive (SSD).  These drives typically read/write 10X - 20X faster than non-SSD drives. As such, you will be able to read/write large surveys much faster in TPC.

Related Topics

Working With Survey Files

Editions

Personal, Premium, Professional