Tacview 1.x uses several methods of de-cluttering labels in the 3D view. If this is not working well for you, starting in Tacview 1.9.3 beta 10, you can change the below registry values to make certain categories of labels visible or invisible at certain distances.
The Registry Key:
Computer\HKEY_CURRENT_USER\Software\Raia Software Inc.\Tacview (beta)\Global\Display\Labels
The keys and their default values (integer or string)
- aircraftLabelDistance = 1.e+12f;
- propelledWeaponLabelDistance = 1200 * km;
- bombLabelDistance = 1200 * km;
- parachutistLabelDistance = 120 * km;
- aerodromeLabelDistance = 800 * km;
- SAMLabelDistance = 600 * km;
- AAALabelDistance = 20 * km;
- lowThreatLabelDistance = 4 * km;
- groundVehicleLabelDistance = 3 * km;
- waypointLabelDistance = 1.e+12f;
- buildingLabelDistance = 800 * km;