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Offline Vyrtuoz

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Tacview 1.5 official thread
« on: August 09, 2016, 04:33:49 PM »
Tacview 1.5 is now available to everyone!

Download: Click Here

While - at the first sight - this version does not look very different from the 1.4.3, it is a huge leap forward! This is simply the biggest upgrade to date: It took about 8 months of hard work and debugging to perfect a whole new telemetry engine and file format.

Why all this work?

The new telemetry engine is more powerful, transparent and efficient than ever:
  • It can manage any kind of data even unknown one. The owners of the Home and Professional editions can now use the new raw telemetry tool to have a look at all the data recorded for each object of the battlefield. In a future release, new customizable telemetry windows will be introduced, in addition of the raw telemetry tool, to replace the old - and now overloaded - telemetry ones.
  • This new engine also supports real-time data recording… which will soon lead to real-time flight data recording for the devices and simulators which support this kind of feature (like DCS World, FSX, X-Plane…)
  • Thanks to lossless optimizations and improved structures, the new engine requires two times less memory to load the same amount of data as before!
  • Thanks to full 64-bit floating point precision and spherical interpolations, replays are much more accurate than before, especially when analyzing real-life data and intercontinental flights.
  • The “good” old text and compressed binary file formats are gone! From now on, Tacview will save all of your data in a much cleaner and more intuitive text format (optionally compressed in zip, and soon 7z). Please note that DCS World and FSX exporters will switch to this new format soon.
  • This new file format is very easy to learn and to master. This means that, with just a bit of programming knowledge, you can easily create your own exporter. You can even create a file by hand - like show bellow - to inject data in Tacview world. A detailed documentation for the acmi 2.0 file format is available online:
What does that mean for you?

These two major improvements will soon enable really useful features. Here are two obvious examples:
  • Real-time flight data recording, replay and analysis: Soon you will be able to see a flight in progress! Which is going to be very useful for instructors and referees.
  • Soon, all the data available in your cockpit will be visible in Tacview: Like fuel flow, controls position and even the pilot point-of-view and head movements!
What about Bullseye?

Tacview 1.5 natively support the display of bullseye and bullseye coordinates. For now, you can display a bullseye by creating and merging a tiny telemetry file like the following. Tools will be added soon so you can create and edit this kind of data directly from Tacview.
  • Each bullseye is positioned using the “T=” statement in the following order: longitude in degrees, latitude in degrees, altitude in meters (altitude is used only for display purposes).
  • Use the notepad to create a text file containing the following data and use the merge function of Tacview to add it to your flight data.
Code: [Select]


  • Brand new (fully rewritten) core telemetry system
  • Telemetry engine now uses about two times less memory then before
  • Full 64-bit telemetry engine for more accurate replays
  • Fully rewritten merge feature which gives more stable and better results than ever
  • Accurate interpolation (slerp) of geographical spherical coordinates
  • Improved roll/pitch/yaw emulation for low-end telemetry files
  • Added support for the new ACMI 2.0 text file format (import & export)
  • Added support for telemetry files stored in a zip archive
  • Brand new Falcon 4.0 VHS file importer
  • Spanish translation by Miguel Víctores Franco
  • Added preliminary support for bullseyes (you can import your own bullseye)
  • Added day/night cycles to better represent flying conditions
  • Added traveled 2D ground distance to the charts (vs 3D air distance)
  • Calibrated air speed for standard atmosphere can now be displayed in the telemetry window and labels
  • Added an option to switch distances to feet under 2 nm
  • Unknown objects are now displayed using related 3D meshes instead of just boxes
  • Improved SAM/AAA threat zones display
  • Hovering the mouse on anti-aircraft unit will display its thread sphere regardless of the global option
  • You can now double click in the 3D view to toggle full screen mode
  • Restored support for Windows XP (at least until the 3D render is rewritten)
  • Updated Falcon 4.0 terrains and databases to BMS 4.33 U1
  • Upgraded the export script to gracefully support DCS World 1.5.4 new export options
  • Added preliminary support for DCS World F-5E-3
  • Increased charts time and distance measurement marks resolution to 1/10 unit
  • Added support for the new Flightradar24 csv files
  • Added support for comma as a separator for seconds in XML timestamps (GPX files)
  • Improved GPX files support (invalid samples are ignored and more tags are supported)
  • Improved KML files support for static objects (preliminary support of polygons)
  • Selected objects labels are now always displayed regardless of the global option
  • Removed multimedia keys support (mouse and normal keyboard controls are more than enough)


  • Fixed a crash when loading truncated lines in csv files
  • Fixed a rare random crash when loading custom terrain textures
  • Fixed slow startup with a lot of custom tiles textures
  • Terrain custom textures loading has been tweaked and is now much faster
  • Falcon 4.0 VHS files landing gear and airbrake are now displayed properly in Tacview
  • Improved Falcon 4 "bubbles" handling and objects respawn
  • Invalid UTF-8 characters in text files are now handled gracefully
  • The advanced telemetry (effective) heading (HDG) is now properly displayed instead of the calculated one
  • Camera controls are now more responsive while idle (playback paused)
  • FSX2ACMI now better handles pauses during a flight
  • Fixed Falcon 4.0 RKND & RKNW runways position and orientation
« Last Edit: August 09, 2016, 08:09:36 PM by Admin »

Offline Vyrtuoz

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Re: Tacview 1.5 official thread
« Reply #1 on: August 09, 2016, 04:35:26 PM »
Feel free to post here any questions and comments related to Tacview 1.5.

Please, create new threads for general questions.

Offline Asid

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Re: Tacview 1.5 official thread
« Reply #2 on: August 09, 2016, 05:55:10 PM »
Great news.

Tacview is an excellent tool. I recommend it to all. Especially when there is a free version.

Keep up the good work Vyrtuoz.

I stand against Racism, Bigotry and Bullying

Offline Vyrtuoz

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Re: Tacview 1.5 official thread
« Reply #3 on: August 09, 2016, 08:01:32 PM »
Note for BMS users

Thanks to your feedback I have noticed that the day/night cycle is not correct with BMS VHS files.

This is because the time provided in VHS files is in local time instead of UTC.

I will manage properly this case in Tacview 1.5.1


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