Z1 Analyzer Software Release Notes Manual Index
Full history of release notes for the Z1 Analyzer.
v 1.13.1
September 26th, 2018
* Fixed a bug in parsing ZOD2 files that could result in sector times being off by one sector (ie sector one time being reported as sector two time, etc)

* Fixed a bug in parsing ZOD2 files that could result in lap times being off by one lap (ie a lap time for the previous lap being attributed to the next lap.)

v 1.13.0
September 24th, 2018
* Support for the new ZOD2 format for Assetto Corsa, Race Room, Project Cars 2. (This new format improves accuracy of lap times and sector times, as well as adding additional data.)

* In the select lap dialog the small square to the left of open laps will now show a different color for an open base lap versus open main lap. Base laps will show a blue square by default. Main laps will show an orange square by default. You can set the colors used for these squares in the settings dialog.

* Improved rendering of the throttle/brake overlays on all track maps in the various analysis screens. The rendering is now smoother and even more accurate than before.

* Improved rendering of side by side laps for Speed Comparison, Brake Points, and Understeer analysis screens. The rendering is smoother and eliminates the jagged edges that sometimes occurred on various track maps.

* There are now keyboard accelerators for various menu commands. They are:
File->Open = Ctrl O
File->Start Live Telemetry = Ctrl L
File->Stop Live Telemetry = Ctrl Shift L
File->Open Layout = Ctrl Shift O
File->New Custom Trace = Ctrl T
File->Settings = Ctrl Shift S

Laps->Clear Base Lap = Ctrl Alt C
Laps->Switch Laps = Ctrl Alt S
Laps->Play Lap = Ctrl P
Laps->Stop Lap = Ctrl Shift P
Laps->Flip Map Horizontally = Ctrl H
Laps->Flip Map Vertically = Ctrl V
Laps->Rotate Map = Ctrl R

Analysis->Zoom In = Ctrl Z
Analysis->Zoom Out = Ctrl Shift Z

Trace Display->Reset Traces = Ctrl Shift R
Trace Display->Show/Hide Trace 1 = Ctrl Shift 1
Trace Display->Show/Hide Trace 2 = Ctrl Shift 2
Trace Display->Show/Hide Trace 3 = Ctrl Shift 3
Trace Display->Show/Hide Trace 4 = Ctrl Shift 4
Trace Display->Show/Hide Trace 5 = Ctrl Shift 5
Trace Display->Show/Hide Trace 6 = Ctrl Shift 6
Trace Display->Show/Hide Trace 7 = Ctrl Shift 7
Trace Display->Show/Hide Trace 8 = Ctrl Shift 8
Trace Display->Show/Hide Trace 9 = Ctrl Shift 9
Trace Display->Show/Hide Lap Data = Ctrl Shift L
Trace Display->Show/Hide Track Map = Ctrl Shift T

* The open settings and open lap buttons have been removed from the top of the Lap Data display.

* Note for the Ctrl P (Play Lap) option, every time you use the keyboard shortcut it slows the playing speed down by half, until you reach 1/16 speed at which point it returns to full speed.

* The menu items in the Trace Display menu now show check marks next to them when their associated item is displayed, and no check mark when it is not.

* The Show Trace 1-9 menu items under the Trace Display menu now include the name of the trace being displayed. This should make it easier to see which trace is being referenced, especially if the traces on the display are not in their original order.

* There is a new option under the Lap menu called 'Swap Laps'. Choosing this option will switch the currently selected base lap and main lap (so the main will become the base and the base will become the main). You can also use the Ctrl-Alt-S keyboard shortcut for this as well. (This is the same option as clicking on the left/right arrow icon in the analysis screens.)

* There are two new options under the Analysis menu called 'Zoom In' and 'Zoom Out'. These options will let you zoom in or our on the analysis track maps. They duplicate the magnifying glass buttons displayed in the analysis track maps screens. You can also use the keyboard shortcuts of Ctrl-Z to zoom in and Ctrl-Shift-Z to zoom out. Note if you are not viewing an analysis screen, then these menu options do nothing.

* The play and stop buttons have been moved from the Lap Data section to the top of the Track Map section.

* The track map's 'option' button has been removed. The buttons is showed (flip horizontally, flip vertically, rotate, show/hide throttle-brake overlay, show/hide 3D map, and save track map) are now permanently displayed in the track map header.

* Menu Items will now be disabled if their functionality does not make sense to be used, or should not be used, in a certain mode (such as when live telemetry is playing, or when analysis screens are displayed or hidden.)

* The Live Telemetry option under the file menu has been split into two options: Start Live Telemetry and Stop Live Telemetry. Only one will be active at a time.

* When viewing the analysis screens, the icons for playing, stop playing, zooming in and out, and switching the laps have been moved to the top of the analysis screen in a new header bar. These icon duplicate the functionality available in the menus and keyboard shortcuts.

* When viewing the analysis screens, the icons for flipping the track map, rotating the track map, displaying/hiding the throttle-brake overlays, and showing the map in 3D are now permanently visible in the new header bar. This makes it easier to access these options.

* When viewing live telemetry the lap count, last lap and best lap display has been moved into the track map header. This frees up more space in the main display for the track map.

* You can now use the mouse scroll wheel to scroll the list of laps in the Select Lap dialog.

* You can now use the up and down arrow keys to scroll the list of laps in the Select Lap Dialog.

* There are now shortcut options for the following four menu items in the Select Lap Dialog. They will work on the currently highlighted lap:
Open Lap = Enter
Open Base Lap = Ctrl Enter
Load as Left Edge = Ctrl L
Load as Right Edge = Ctrl R

v 1.12.1
August 1st, 2018
* Fixed a bug that could prevent the Analyzer from properly connecting to the Z1 Server during live telemetry.

v 1.12.0
June 27th, 2018
* Updated various DLLs and dependencies related to graphics and display to improve performance.

* Implemented a new data recording file format - ZOD2. This brings various improvements over the original format that allows for more accurate lap timings and sectors times. In addition it will help get rid of partial laps that could sometimes occur with the ZOD file format. This new file format will also allow for better future expansion. As of this release it is only associated with Kart Racing Pro. Other sims will be supported in future releases of the Z1 Analyzer.

* There is a new settings called 'Show Grid' in the General tab of the settings dialog.. This will display the background grid used in the Snap To Grid feature. This is off by default.

* There is a new setting called 'Snap To Grid' in the General tab of the settings dialog. When turned on this will make sure all windows that are moved or resized will line up with the square grid. This allows you to more easily align traces for a better looking layout. This is on by default.

* There is a setting called 'Grid Size' in the General tab of the settings dialog. This allows you to set the size of the snap grid. The default size is 5.

* There is a new trace for Cylinder Head Temperature. This is available under the Engine State sub menu. In addition you can set the color of this trace in the Color tab of the settings dialog. And commercial users can set minimum and maximum value alerts for this trace in the commercial tab of the settings dialog.

* The Wheel RPS trace now displays all values as positive. This allows for sims like RaceRoom which reports wheel RPS speed as negative to still be displayed on the trace's graph.

* The Wheel RPS trace is now associated with the Graph From Zero option. When the Graph From Zero option is turned off the graph will show minimum numbers based on the wheel RPS of the lap. This allows for more detail in the graph.

* The Project Cars 1 and Project Cars 2 network connectivity options have been combined into a single drop down where you select the version you would like to connect to.

* There is now an ABS (absolute value) button in the custom trace layout operators.

* There is now a NEG button in the custom trace layout operators. This will multiply the appropriate value by negative one (-1).

* The brake lockup analysis screen now works with sims that report negative wheel RPS rates, such as RaceRoom.

* You can now specify the color of the background of the entire analyzer screen. This is available in the Colors tab of the settings dialog. Look for the Background swatch at the bottom of the third column.

* You can specify the color of the snap grid. This is available in the Colors tab of the settings dialog. It is at the bottom of the third column.

v 1.11.1
May 10th, 2018
* Fixed a bug associated with the Analyzer screens and menu selection that could cause the application to crash.

* Fixed several bugs associated with background threads and file selection that could cause the application to crash at random times.

v 1.11.0
March 26th, 2018
* Commercial users can now run up to 6 instances of the Z1 Analyzer simultaneously. To launch additional instances simply launch the Analyzer again. Each instance will have its own specific settings. The custom layouts and custom traces are shared between all instances. Only the first instance can perform a lap scan. The other instances use the data from that lap scan to load laps.

* The previous way of changing a trace's location or size has been replaced. You no longer specify if a trace should take up 1 or more horizontal or vertical slots. Instead you can simply left click on the title of the trace and drag it where you want to place it. The layout of the traces will be saved when you exit the Analyzer. They will also be saved if you create a custom layout, so that you can restore it later when you load that layout.

* You can resize a trace by clicking and dragging the lower right corner of the trace.

* The Lap Data window can be moved and resized just like a trace window.

* The Track Map window can be moved and resized just like a trace window.

* The bottom right corner of the track map is no longer used to display the analysis screens. That corner now lets you resize the track map display.

* There is a new icon at the top right of the track map display. Click on this icon to display the analysis overview screen.

* All analysis screens now have a small 'X' ixon at the top right of their display. Click this icon to close the analysis and return to the trace graphs.

* There is a new menu item under the Analysis menu, called 'Close Analysis Screen'. This will close any open analysis screen.

* When you click on a trace it will automatically be brought to the front. If it overlaps any other traces they will now appear behind the clicked traced. You can turn this 'bring-to-front' behavior off by unchecking the Auto Bring To Front option in the settings dialog.

* The Trace Display menu, available when you right click on a trace, now has four options. Maximize trace will make the selected trace take up the entire screen. Restore Trace will unmaximize a maximized trace. Hide trace will make the trace invisible. Reset traces will return all traces to their default locations and sizes.

* There is a new top level menu, Trace Display. This allows you to reset all the traces by selecting Reset Traces. It also lets you control the visibility of each individual trace.

* There is a new analysis screen called 'Brake Points'. This will display information about each brake zone. A brake zone is defined as any time the driver of the main lap applied the brakes. The information given is the distance the driver was on the brakes, the total time they were on the brakes, the maximum braking level used during braking, the average braking level used during braking, the time it took the driver to reach the maximum braking level, the speed at the beginning of the brake zone, the speed at the end of the brake zone, and the average speed during the brake zone. If two laps are loaded this information will be displayed for both laps allowing for a comparison. In addition if two laps are loaded the difference in distance between when each driver applied the brakes will be displayed.

* The display of the Turn Analysis comments has been improved. It now uses the same updated look of the Brake Points analysis. The box positioning has been improved to prevent it from being displayed partially off screen in any situations.

* When you open a lap file the Z1 Analyzer will now check with our server to see if there is a track edge definition file for the track you are loading. This allows us to provide you with new track edge files when they become available without your having to perform an update or other installation. It also allows us to provide a smaller installer file as we no longer have to package all the track edge definition files within the installer. This is important as the growing number of track edge files were making the installer much larger than it needed to be. If you do not want the Z1 Analyzer to check for the track edge file you can turn this feature off by unchecking the checkbox called 'Download Track Edges' in the Z1 Analyzer's settings dialog. (Note: if there is already a track edge definition file on your computer then this check against the server is skipped.)

* A new trace called 'Timing Delta' is available under the Driving Inputs sub menu. This trace shows the delta in lap time between two laps. For this to have any data displayed you must have two laps loaded. The delta time is comparing the main lap to the base lap. If the delta is positive that means the main lap is behind the base lap. If the delta is negative that means the main lap is ahead of the base lap.

* Added a new data point for Water Level (Coolant Level). This is available as a basic trace and for use within custom traces. You can set the color used for this trace in the Color tab. The limits can be set in live telemetry in the Commercial tab (assuming you have a commercial license.)

* Added two new data points: ERS Lap Level and ERS Max Per Lap. ERS Lap Level is the amount of ERS you have left this lap. ERS Max Per Lap is the total amount of ERS you can use for the entire lap. This can be graphed in the basic trace called 'ERS This Lap'. You can also use these two data points in your custom traces. In addition you can set a color for the ERS This Lap trace, and set maximum and minimum limits (for commercial license users) for the ERS Lap Level.

* You can now clear the base lap by using the new menu option under the Laps menu of "Clear Base Lap". If you have a base lap loaded it will be cleared when selecting this option.

* The Lap Scan dialog now resets the display each time it is opened. Previously it would retain the lap scan data, which made it harder to see the current scan status if a scan was repeated.

* The Analyzer will now check for the existence of the Z1Analyzer folder in your documents folder upon startup. If the folder does not exist an error message will be displayed and the Analyzer will quit.

* The Lap Scan dialog now shows the current filters that are in effect for the lap scan (lap age, start/finish percentages).

* There is a new top level menu called "YouTube Help". This menu lists various YouTube videos that help to explain features of the Z1 Analyzer. Selecting one of these menus will open the YouTube video in your default browser.

* The Analyzer will check the vertical resolution of the screen. If it is too low a warning message will be displayed alerting you to the issue. This can alert you that dialogs may be cut off on smaller screens.

v 1.10.0
December 20th, 2017
* You can now create your own custom traces. This is done by selecting File->New Custom Trace, or by right clicking on a trace and choosing Custom Trace->New Custom Trace. This displays the New Trace Dialog. Each trace must have a unique trace name. You can then create the mathematical formula that defines the trace. You can use any of the current data channels and any of the operators. The operator buttons work just like a calculator. Clicking on the buttons adds them to the trace formula. Click on a data channel to add it to the trace formula. The units for each data channel is listed next to the data channel in the table.

If you want to delete a step from your formula click the Delete Step button.

The list of available data channels can be sorted alphabetically or grouped by common purpose. Use the Sort By combobox to change between these two sort options. Each trace can have up to 4 decimal points displays in the graph's value. The default is zero. You can specify this using the Decimal Places combobox.

Each trace can be composed of up to 4 lines. You use the Total Lines combobox to specify how many lines you would like to include in your trace. The default is 1. When using multiple trace lines click in the appropriate trace formula box to edit that line's formula.

An example of a trace that might use multiple lines would be one where you wanted both brakes and throttle to appear on the same trace, or one where you'd like all four wheels to appear on the same trace. You would use 2 and 4 lines respectively in those examples.

* To display the custom trace, right click on a trace and choose the Custom Trace option in the popup menu. You will then see the list of your custom traces available. Choose the one you want. The custom traces behave just like a regular trace.

* You can edit a custom trace by choosing File->Edit Custom Traces, or by right clicking on a trace and choosing Custom Traces->Edit Custom Traces. This will display the Edit Custom Trace dialog which lists all existing custom traces. Double click on the trace you would like to edit. You will then see the trace displayed in the Edit Trace Dialog. This works exactly the same way as the create trace dialog.

* Added colors to the Color tab. It now contains all colors that are used in the application. There is a scroll bar at the right side of the dialog to allow you to scroll up/down to see all the colors.

* Updated the scan process for iRacing files to ignore any laps with negative lap times. These would be the first lap of a session, such as a lap that started in the pits right after getting in the car.

* The lap scan display has been totally redone. A dialog is now displayed whcih shows far more information on what is being scanned. Each sim is displayed on a separate line. You can see the number of files available. The number of files scanned, The number of laps found, record and/or skipped. This should provide more detail on the scan process and how complete it is at any point.

* The new lap scan dialog includes a Cancel button. Clicking this button will halt the scan process. If you do cancel the scan any partially scanned data will not be recorded.

* There is a new option called 'Interpolate Position' in the Genereal tab of the settings dialog. This smoothes out the car's position in recorded laps for sims that don't constantly report the car's position. These sims are rFactor, rFactor 2, Automobilista, Game Stock Car and ARCA Sim Racing. This option is on by default.

* There is now an option to display the traces by distance. This is in addition to the current options of time and lap percentage. The option is available in the General tab of the settings dialog under the Graph By option. The distance option will display increments in either meters or feet depending on your distance setting. With this option two compared laps will be displayed at the same location of the track (like they are with the percentage option).

* The scroll bar in the select lap dialog has been improved.

* You can now use the mouse wheel to scroll the list of available laps in the select lap dialog.

* Shock Velocity is now recorded from Codemasters F1 2017.

* Now compatible with Codemasters F1 2017 Broadcast mode. There is a new option in the Live Telemetry tab drop down for Codemasters called 'F1 2017 BC'. Select this if you want to connect to the sim using the broadcast mode option.

v 1.9.4
November 7th, 2017
* Fixed a memory leak that occurred when playing back recorded laps which could result in a application crash after several minutes.

v 1.9.3
October 13th, 2017
* Fixed a bug that could cause the Analyzer to crash upon closing the Settings dialog.

* Fixed an issue that could cause the left side tire inner and outer temps to be reversed on Assetto Corsa.

* Fixed a bug that could cause the Analyzer to crash when attempting to read very large (multi gig) ibt files from iRacing. The maximum file size has now been capped at 1GB. Any file larger than that will be skipped.

v 1.9.2
October 13th, 2017
* Updated compatibility with Codemasters F1 2017 to their 1.8/1.9 patch.

v 1.9.1
October 6th, 2017
* Fixed a bug that would stop telemetry values and track map positions from being displayed in live telemetry if you selected a new trace to be displayed while live telemetry was running.

* Fixed a bug that could prevent live telemetry from connecting to Codemasters F1 2016 sim.

* Fixed a bug with the Camber trace that could cause the Analyzer to stop responding in certain circumstances.

* Added a third sector color to the Lap Overlay track map thumbnails. This makes it easier to differentiate sectors in the track map.

v 1.9.0
September 28th, 2017
* Added 15 new trace channels: Clutch, Fuel Remaining, Fuel Pressure, Voltage, Water Pressure, Center Front Shock Deflection, Center Front Shock Velocity, Center Rear Shock Deflection, Center Rear Shock Velocity, Shock Velocity, ERS Level in joules, Power MGU-K in watts, Power MGU-H in watts, Torque MGU-K, and Camber.

* The Z1 Analyzer is now compatible with Codemasters F1 2017. You can viewed laps using the Z1 Dashboard software, or view live telemetry data.

* The Lap Overview now includes track map thumbnails for the sectors, driving line and turns sections. This helps you determine which part of the track is being discussed on those sections. A scroll bar will appear on the right if the page is longer than the available screen space.

* Improved increment display on traces to provide clearer steps on each graph.

* The Input Trace now uses all available space when it is resized.

* The Input Trace now displays the wheel camber on top of the tire graphics. (For those sims that support the camber data channel.)

* The Layout tab was removed form the settings dialog as it was no longer needed. You now specify which data channels should be displayed by right clicking in the trace.

* The maximum age for recorded laps to be included in the scan has been changed from 1-60 days to 1-12 months.

* The Live Telemetry tab now allows you to specify which sims should be checked for when detecting live telemetry. This brings the Analyzer in line with how the Dashboard checks for sims.

* You can now save layouts. This option is under File->Save Layout. Then give the layout a name to save the current layout.

* You can now open saved layouts. This option is under File->Open Layout. Any previously saved layouts will be displayed there. Double click on the layout you want to open. This allows you to create multiple layouts for specific purposes and easily open them.

* If you right click on the name of a layout in the 'Save Layout' dialog you are then able to delete the selected layout.

* Non-commercial users can save a maximum of 10 layouts. Commercial users can save an unlimited number of layouts.

* The name of the currently opened layout is displayed at the bottom right of the Analyzer's status bar.

* When showing live telemetry commercial users can set maximum and minimum limits for each data channel value. If that value goes out of those bounds then the appropriate trace display will flash or display the border in red to show the value is out of the desired range. This is a commercial license feature.

v 1.8.1
September 13th, 2017
* Updated the RaceRoom API to work with the September 12th patch.

v 1.8.0
June 26th, 2017
* There is now an option called 'Include Server Tracks' in the General tab of the settings dialog. With this option on you will be able to download any lap from our server for any sim, even if you have not run a lap on that sim/track combination. This will greatly increase the length of the track drop down in the Select Lap dialog (and is therefore off by default). Note you must have the 'Share Laps' option turned on for this option to work.

* Improved memory management to allow for better opening of very large laps (such as certain Nurburgring variations).

* When opening a lap you will see progress bar describing the current processes. For most laps these will go by extremely quickly, but for very large laps they will keep you informed of the opening process.

* Improvement in speed during the rendering of the all traces.

* Added a bottom status bar which will display messages regarding application processes.

* You can now choose the units to display speed, amounts, pressures, temperatures, distances, weights and torques all separately from one another. These are located in the General tab of the Settings Dialog.

* All Commercial options have been moved into a new tab called 'Commercial'.

* If you load a base lap before the main lap the analyzer will now display the track map and traces for the base lap. (Note you can't get any analysis or additional data until you load a main lap.)

* Commercial users now have the option of having live telemetry compared to a pre-recorded lap. To do this the desired pre-recorded lap should be opened as the base lap before you start live telemetry. Then once live telemetry starts the base lap will be played back along with the live telemetry. Live telemetry is time based, so the base lap will be displayed in the traces to match the current time of the live lap. If the live lap takes longer than the the base lap, then the base telemetry will end until you start a new lap. If the live lap takes less time than the base lap, then the base lap will restart when you cross the start/finish line. This allows you to see if you are ahead or behind the base lap. This option can be turned off in the Commercial tab of the settings dialog.

* Commercial users have the option of using the base lap's telemetry extents when rendering the traces. If you have a base lap loaded then it is suggested you leave this option on. This not only speeds up rendering, but ensures the entire base lap trace can be seen. This option can be toggled in the Commercial tab of the settings dialog.

* Commercial users have the option of using the base lap's track map when running live telemetry. Using this option means you don't have to save the track map before using live telemetry. If you want to use a pre-saved track map then you should turn this option off. If no base lap is loaded then the Analyzer will attempt to load a pre-saved track map. If no pre-saved track map exists then the default square will be used. This option can be toggled in the Commercial tab of the settings dialog.

* There is an option to display lap time information with live telemetry. The option is available in the Live Telemetry tab. When selected you will see the number of laps turned, the last lap time and the best lap time display in a box at the bottom left of the track map.

* You can now change the size of the traces by specifying how many horizontal or vertical slots they should use. Right click on the desired trace and choose 'Trace Size'. Various options will then be displayed for you to select the desired size. Selecting 'Restore All' will set all traces back to their default size.

* There is also a Maximize Trace option in the right click drop down. Selecting this option will cause the selected trace to use the full screen. When this option is selected you will not be able to view the track map or lap data screens. To exit the maximized mode, select Restore All from the right click drop down.

* There is an option called 'Save Trace Sizes' in the General Tab of the settings dialog. This allows you to specify whether or not the current horizontal and vertical sizes of the traces should be restored when you reopen the Analyzer. This is on by default.

* The General tab of the settings dialog has been rearranged for better layout.

v 1.7.1
April 6, 2017
* Updated to the latest version of RaceRoom.

v 1.7.0
March 22, 2017
* The select lap dialog now displays the number of laps available on the server for the selected track, even if they are not being displayed in the list of laps (which can happen depending on your current display options). Clicking on this line of text will display all the available laps. Remember in order to see any laps from the server you must have the Share Laps option in the General settings dialog selected (which it is by default). You have to share your laps in order to see other driver's laps.

* You can now specify the maximum number of laps to be listed from the server for a track. The option is in the General tab. The default is 150. This speeds up the process for listing the laps available from the server for tracks which have a large number of laps available. You will be alerted if the total number of laps available is more than the maximum number you have specified to be listed.

* There is now an option to tell the Analyzer how you want to prioritize the laps listed from the server. This option only has an effect if you are listing fewer laps than than are actually on the server. For example if there are 200 laps on the server and you only want to see 50 of them (as can be specified in the Max Download Laps option) then this setting is important. The first option 'By Fastest Lap' sorts the laps to be listed by car and then lap time. If you have specified that you want 50 laps to be listed, and there are 10 cars with laps on the server then the 5 fastest laps for each of those 10 cars will be returned regardless of when those laps were uploaded. This option is the default option. The second option 'By Most Recent' would list the latest 50 laps to be uploaded to the server regardless of the lap time or car.

* There is now an option called 'Group Cars' in the General tab of the settings dialog. This is checked by default. With this option checked all laps by the same type of car will be grouped together in the Select Lap Dialog, making it easier to find laps for a particular type of car.

* There is now an option to display the trace graphs by percent instead of by lap time. This is located in the general tab of the settings dialog under 'Graph By'. If you are comparing two laps which have different lap times then graphing by lap time allows you to see where you gain or lose time compare to the other lap. Graphing by percent displays both laps on the same horizontal scale (which is the percentage of the way round the track for the first lap). This allows you to compare driver inputs and car motion at the exact same point on the track for both laps. This can help you determine how you can improve your lap by easily seeing what you are doing differently compare to the other lap at any exact location.

* When viewing live telemetry the sectors are now displayed. Note for this to work you must first have saved a track map for the appropriate track after viewing a recorded lap.

* The traces now expand horizontally or vertically to use all available space in the window.

* The brake lockup analysis has been improved. Previously the front wheels had to be completely stopped in order to register as a lockup. This has been modified so that a wheel is now considered to be locked if it is rotating at 15 MPH less than the rear wheel on the same side of the car. This will show you where you are right on the edge of locking up as well as when you a wheel is fully locked. The value of 15 MPH can be adjusted in the general tab of the settings dialog, under Lockup Threshold. (A restart of the Analyzer is required after you change this value for the new value to take effect.)

* The turn analysis has been improved when using the track edges to determine the turns. Previously you may have been told you were not getting close enough to the edge of the track upon exiting a turn which was followed immediately by another turn. This is not always the best advice for the optimal driving line. The Analyzer now takes the following turn into account more when providing advice on track out points.

* You can now click on the track map trace to select the point you would like to see. Previously you had to click on a trace graph to position the car.

* Updated how the windows are drawn to allow for better future expansion.

* The track map now shows a direction of travel arrow at the start/finish line.

* You can now specify the color of the lap text (things like time intervals, sector numbers, start/finish line indicators, etc) in the traces.

* You can specify the color of the lines used to draw the time increments, start/finish line and sector lines on the traces. Each of these can have its own color.

* Improved the scrollbar movement in the select lap dialog.

* Improved the way laps are requested from the server.

* The General settings tab has been split into two tabs - 'About' which should the registration status of the Analyzer, and 'General' which shows various options. This gives more room to the general tab, which was needed.

* New Commercial license only option - you can assign a password to your laps when you upload them. This allows you to securely share your laps with other commercially licensed Z1 Analyzers that have the appropriate password. In order to see the lap in the list of available laps and download the lap you will need that same password. The password is encrypted on our server for your security. The passwords are entered in the General tab of the settings dialog.

* New Commercial license only option - you can specify if laps that do not have passwords associated with them should be displayed in the list of available laps. This makes the list display only the laps that match the currently entered password and excludes all non-password protected laps. This option is set in the General tab of the settings dialog.

* Added additional debug options relating to getting the list of laps available on the server and registering the Analyzer.

v 1.6.2
February 28, 2017
* Fixed a bug that could cause connectivity issues with Assetto Corsa.

v 1.6.1
December 23, 2016
* Fixed a bug that prevented laps from the server from being displayed in the select lap window.

v 1.6.0
December 20, 2016
* Data sharing is now part of the Analyzer. This allows you to upload your laps to the server and download laps from the server. This means you can open a lap of another driver who has uploaded their lap to the server in order to compare yourself to that lap. Note that no setup information is uploaded to the server, only telemetry information.

* Any laps available to be downloaded from the server will be displayed in blue in the select lap dialog. In order for a lap to be displayed it must meet the current criteria (same track and sim, and display date range). Double clicking on one of these highlighted laps will download it from our server and load it into the Analyzer. You can load it as either the primary lap or a comparison lap, allowing you to compare one of your own laps to that lap.

* When you open one of your laps it will automatically be uploaded to our server (telemetry only) and be added into the pool of laps that can be downloaded by other users. If you do not want your laps to be uploaded the uncheck the 'Share Laps' option in the General tab of the settings dialog. Note if you uncheck this option you will not be able to download laps either. (You've got to share your own laps if you want to download other people's laps.)

* The Select Lap Dialog uses four colors to display information about a lap. These colors can be customized in the Color tab of the settings dialog. You can specify the color for a local lap (ie one that you recorded on your computer); a server lap (one that is on our servers); the lap you have just clicked on (selected); and the laps that are currently open. The laps that are currently open will have a small square to the left of the car name.

* In the Select Lap Dialog there is a check box called 'Automatically check server for laps'. This is on by default (unless you turned off the Share Laps option). With this option checked the Z1 Analyzer will automatically attempt to connect to the server and request a list of laps that match your current criteria. Unchecking this checkbox will prevent the Z1 Analyzer from performing this check. If you are off line or have limited bandwidth or any other reason for not wanting this feature to be active, then uncheck this checkbox.

* The Select Lap Dialog has been redone. The list of laps is displayed in a scrollable table that makes it easier to see details of each lap. Weather is now displayed in this table. To open a lap double click the desired lap. When you double click the lap it will open in accordance with the currently selected option form the Options drop down (Load Lap, Load Comparison Lap, Load as left track edge, Load as right track edge). The Sort By and Display drop downs control which laps are display in the table and how they are sorted.

* You can also right click on the list of laps. This will display a popup menu with additional options. You can choose to open the lap this way, or open the lap as the base lap, left track edge or right track edge. In addition you can choose various filters for determining which laps are displayed. These include the ability to filter by local versus server laps, the type of car and the driver name.

* The analyzer now lets you view laps from different cars on the same track. This is so you can compare different types of cars from within the same class on a track.

* The Analysis Overlay screen has been updated to include the weather information for each lap. Note not all sims provide weather information.

* The Z1 Analyzer is now compatible with Race Room.

* The Z1 Analyzer will now remember your settings moving forward. (So they won't get overwritten when you install future updates.)

* The right click popup menu has been cleaned up and grouped into submenus to make it more space efficient.

* When you right click on a trace to display the popup menu, the selected trace is outlined in red to make it obvious which one you are modifying.

v 1.5.2
October 28, 2016
* Fixed a bug associated with bad data being generated from iRacing which would cause the Z1 Analyzer to crash upon startup or trying to load a lap. After installing this update you must delete the file called 'laps.xml' located in documents/z1analyer. Then run the Z1 Analyzer and rescan your computer for laps form the Select Lap Dialog.

v 1.5.1
October 17, 2016
* Fixed a bug where the Analyzer would not properly connect to the Z1 Server.

* Fixed various bugs in reading and writing data to and from files.

* Other small bug fixes.

v 1.5.0
September 28, 2016
* The Analyzer is now compatible with Automobilista.

* There are now menus in the main menu bar which provide an additional way of selecting various functions within the Analyzer.

* There is now a popup menu that is activated by right clicking on the traces. This menu lets you select the trace you would like to place in that location. This provides an additional way to specify the trace in addition to the settings dialog.

* There is now a debug setting in the General settings tab. This allows you to turn on and off various debug data outputs.

* The lap times of laps recorded into zod files has been improved to match the times displayed in the sim.

* There is a new Analysis screen for understeer. This is accessible with all the other analysis screens by clicking on the green arrow at the bottom right of the track map. Then choose 'Understeer' from the drop down menu. This analysis screen shows you where you are getting any understeer during the lap. The darker for color the more severe the understeer.

* Made tweaks to the track walk text parsing to improve turn descriptions.

* Rearranged the order of the traces in the Layout tab of the settings dialog to better group them.

v 1.4.0
June 28, 2016
* There is a new analysis screen called 'Track Walk'. This allows you to click on each turn on the track and get details information about that turn, including elevation and camber changes that occur as you go through the turn. The idea is that you can look at each turn in detail and see how the track will help or hinder you as you drive through the turn. This will help you determine how to take the turn, how hard you can brake, how much you can turn and accelerate in the turn. (Currently this is only available for iRacing tracks.)

* There is now an option in the general tab of the settings dialog that lets you specify if the track edges should be used to determine the turns on a track. This is on by default. In most situations this option is better at determining corners than the previous method. But if you still want to use the previous method, just untick this checkbox.

* The Driving Line and Turn Analysis screens can now be displayed in 3D.

* The analyzer will now display driver markers found in the telemetry files on the Driving Line and Turn Analysis overlay screens and the traces.

* You can specify if the sectors and/or markers should be displayed in the traces or overlays.

* Improved how the lap times are determined from iRacing ibt files to prevent rounding that happened in previous releases.

* There is a new trace for wheel RPS. This allows for analysis of locks up for sims that do not have wheel speed data, but do have wheel RPS data.

* There is now an option to specify the maximum age of the lap in days for it to be scanned and presented as an option for you to load. By default this is 30 days. You can change this option in the general tab of the settings dialog.

* The Play button now gets highlighted when you replay a lap.

* When playing a lap, if that lap is from iRacing and you are still in the session where that lap was recorded, then the Analyzer will sync the iRacing replay and play it back along with the Analyzer's replay.

* The rendering of the throttle/brake overlay on the Speed Comparison screen has been improved.

* When viewing two laps the Speed Comparison overlay will show the throttle and brake overlays side-by-side on the track map. This allows for easier viewing of how the throttle and braking application of the two laps compare. At the start/finish line and each sector marker you'll see an 'L' and a 'B'. This tells you which trace is for the main lap 'L', and which is for the base lap 'B'.

* The side-by-side option above can be toggled on or off in the General tab of the settings dialog.

* You can now choose if you want the throttle brake overlays on the track map and the speed comparison page to use the filtered inputs (the default) or the raw inputs. This is set in the general tab of the settings dialog. Raw inputs don't show things like electronic assisted blips or ABS, etc.

* The overlays now have a button that allows you to switch the currently loaded lap and the base lap. The button looks like two arrows. This makes it easy to change a selected lap to the base lap and therefore load other laps against that one instead of the previously loaded base lap.

v 1.3.1
March 30, 2016
* Fixed a bug where the ride height analysis screen did not correctly identify the point where the user clicked on the track map.

* Fixed a bug where the values in the traces were displayed too low on the trace. This resulted in traces with four values (such as tires, etc) having the rear wheel values off screen.

* Fixed a bug where if there was no wheel speed data the brake lock up analysis screen would say your brake were continuously locked.

* Fixed a bug in the Lap Overview section where sectors times and turn times where not displayed properly.

* Updated the decimal places used in the Ride Height analysis screen to be one decimal place for metric units and two for imperial units. This brings it up-to-date with how the units are displayed in the Ride Height trace.

* Fixed a bug where zod files recorded with version 4.6.x of the Dashboard might not be able to be opened. (You should delete and ZOD files created with version 4.6.0 of the Dashboard or 1.4.0 of the Server.)

v 1.3.0
March 22, 2016
* The installer is now digitally signed to make the installation process faster and easier.

* The number of ibt files that can be scanned at once has been increased from 1,000 to 5,000. Any files over the 5,000 limit will be ignored.

* The traces colors have been moved to their own tab in the settings dialog. This is to allow space for more options.

* There is now an option to specify whether or not the Analyer rescans for laps every time you start it. This is located in the General tab of the settings dialog.

* There is now an option in the select lap dialog which allows you to rescan the computer for new laps.

* Updates the display in the Shock, Ride Height and front Splitter traces to show only 1 decimal place when using metric units, and 2 decimal places when suing imperial units. The previous value of 4 decimal places was unnecessary and cluttered the display.

* You can now specify how close to the start finish line the car has to be at the beginning and end of a lap in order for that lap to be displayed by the Analyzer as a choice for opening. The default for the start is that the car is somewhere in the first 5 percent of the lap. The default for the end is the car must have finished at least 95 percent of the lap. If your laps are not showing up you can try adjusting these values (especially the ending value) to require that less of the lap has been driven. These options are available in the General tab of the settings dialog.

* Added the following traces: CPU Usage, FPS Trace, Tire Carcass Outer Temps, Tire Carcass Middle Temps, Tire Carcass Outer Temps, Longitudinal Acceleration, Lateral Acceleration, Vertical Acceleration, Oil Temperature, Water Temperature, Raw Throttle, Raw Brake, Tire Wear, Oil Pressure, Manifold Pressure, Tire Pressure, Brake Pressure, Fuel Per Hour, Steering Torque Percentage, Steering Torque.

* There is now an option under the Live Telemetry Tab called 'Pin data line to end' which is on by default. This option keeps the data line pinned to the end of the trace, showing you the current values for a trace value. If you want to be able to click around the trace after you have started live telemetry then this option should be turned off.

* There is now an option under the Live Telemetry Tab called 'Start data line at end' which is on by default. This option starts the data line at the end of the trace, showing you the current values for a trace value.

* There is now an option under the Live Telemetry Tab called 'Show trace values' which is on by default. Unticking this checkbox will prevent the current values of the ttraces from being displayed. This may be useful if you are trying to view the graph of a live trace without the actual value being displayed over it.

* You can now save a track map to disk. This option is available when viewing a lap loaded from a telemetry file. Click on the track map's settings icon and there is a new save icon displayed. Saving a track map allows you to have it displayed when running live telemetry instead of the default square map.

* The live telemetry now shows a time line on the traces. Every 10 seconds is marked as well as the Start/Finish line.

v 1.2.2
December 29, 2015
* Fixed a bug where the shock deflection, ride heights and front splitter heights could display in centimeters instead of millimeters.

* Fixed a bug that could prevent partial laps of a circuit (such as at the Nurburgring tourist configuration) from being loaded.

v 1.2.1
December 24, 2015
* Fixed a bug that occurred when opening a lap after viewing live telemetry. (The driver name and other information would sometimes not be displayed).

* Fixed a bug that could cause the Analyzer to freeze if you started live telemetry after loading a lap file.

* The Analyzer now closes the analysis pages if they were open when you start live telemetry.

* Improved how the track map is rendered under high zooms in the Speed Comparison analysis screen when the throttle/brake overlay was applied.

* Fixed a bug when the Analyzer was connected to iRacing with live telemetry via the Z1 Server where the steering angle was being assigned random values.

* Fixed a bug where the Analyzer would not tell you if you needed to update your plugins of Server. (It would just not connect.)

v 1.2.0
December 14, 2015
* The Z1 Analyzer now has many features aimed at improving the most important part of the car - the driver. The Z1 analyzer is more than just a telemetry analysis program. While it does that extremely well, it is also aimed at helping you improve your driving. This is done through easy to read and understand analysis screens, where suggestions are provided in an attempt to help you improve everything from your driving line, to cornering, to braking, and much more. You don't need a PhD in telemetry analysis to improve your times with the Z1 Analyzer and these new features.

* A new analysis overview screen has been added.(Clicking on the green bordered triangle at the bottom right of the track map will expand the track map to show the various analysis screens.) As there are now many analysis screens, there is now an Overview screen. This screen summarizes your lap giving you advice on how to drive a better and faster lap. If you have two laps loaded, then the screen also includes information on how the laps differ. This should be your starting point when reviewing your laps.

* A new driving line analysis screen has been added. (Clicking on the green bordered triangle at the bottom right of the track map will expand the track map to show the various analysis screens.) Joining the existing speed screen is a driving line screen. You can now compare your driving line around the track with one from another lap. You can use the mouse to move around the circuit and to zoom in or out to get the desired view.

* The driving line analysis screen can show the entire circuit layout with your driving line over it. To do this you need to drive two laps around the circuit. One following the left edge of the circuit, and one following the right edge. Both laps need to be full laps. The speed doesn't matter. Accuracy is what is important. After you have driven these laps (they must have been recorded with the Z1 data logging or iRacing telemetry), you can load them into the Z1 Analyzer by select 'Load left edge lap' or 'Load right edge lap' on the Select Lap Dialog. Once you have done this the track will be fully rendered. You only need to do this once for each track.

* The driving line analysis screen shows the sector time splits for both laps, along with the time lost or gained between the laps for each sector.

* The driving line analysis screen displays the position of the cars when you play back the lap. Each car is positioned on its driving line, allowing you to easily see their progress around the track.

* There is now a ride height analysis screen. Open the analysis window by clicking on the green triangle at the bottom right of the track map. Then choose Ride Heights from the drop down at the top right. This screen shows a colored overlay of your ride heights around the track. It uses the lowest ride height of your four wheels and front splitter to determine the color used. The lower the car the redder the color. The higher the car, the bluer the color. If you actually hit the ground at any point there will be an orange circle displayed. Clicking on the circle will give you full details of the incident.

* There is now a turn analysis screen. Open the analysis window by clicking on the green triangle at the bottom right of the track map. Then choose Turn Analysis from the drop down at the top right. This screen shows all the turns on the track along with the amount of time it took you to drive through each turn. If two laps are loaded the the time for each lap is displayed, long with the difference between the two. This will allow you to easily see where you are gaining or losing time.

* The turn analysis screen will also give you advice on how to drive the turn more quickly. To view this advice, click on the orange circle on the specific turn. If no circle is displayed, then you have driven the corner practically perfectly and no advice is necessary.

* There is now a brake lockup analysis. Open the analysis window by clicking on the green triangle at the bottom right of the track map. Then choose Brake Lockups from the drop down at the top right. This screen will display any lockups on the map as a red line. There will also be an orange circle for each lockup that you can click on for more information. This includes the wheel locked, and the distance of the lockup. If you had no lockups on during the lap this will be displayed on the screen. This analysis screen is intended to help you gauge brake pressure and bias used by the driver and on the car.

* There is now a Track Edge Check analysis screen. When you load the track edges into the analyser it is important that the left and right edges are properly identified. If tey are not some of the features in the other analysis screen may give incorrect results. This screen allows you to easily see if the left and right edges are identified properly by the analyzer, and to switch them if they are not.

* You can now move the track map around and zoom in or out on it in the analysis screens. Click and drag with the left mouse button to drag. Use the mouse wheel to zoom in or out.

* The Speed Comparison analysis screen now displays the position of the cars when you play back the lap. In addition the current speed of both cars is displayed when the lap is being played back to allow for easy comparison at all points of the track.

* The Z1 Analyzer can now show live telemetry as well as recorded laps. To enable live telemetry go to the select lap dialog and click the Live Telemetry button. The analyzer will now wait to connect to any of the supported sims (iRacing, Assetto Corsa, Project CARS, rFactor 1 & 2, Kart Racing Pro, ARCA Sim Racing, Game Stock Car, SimBin, Codemasters). It will also connect to the Z1 Server. Note that each sim provides a different amount of live data, so the feeds available will vary by sim. Once you have started the sim, the analyzer will start displing the telemetry. (Note that rFactor 1 & 2, Kart Racing Pro, ARCA Sim Racing and Game Stock Car require the plugin be placed into the appropriate folder.) The analysis screens are not available for live telemetry. If you want to go back to a recorded lap, just open the select lap dialog and choose the desired lap.

* Added a new trace for front splitter ride heights.

* When you zoom in on a section of the lap, the track map now shows (in the lower left corner) the time taken to drive that segment of the lap. If two laps are selected, the time taken for each lap to drive the segment is displayed, along with a time differential. This allows you to easily see which lap was faster over the selected segment.

* Double clicking on the steering trace will zoom the traces and track map in to the turn the car is driving through at that point on the trace. You can then compare the two laps to see which is faster through the turn. If the point you click on is a straight, then the traces will zoom in to that straight, allowing you to compare the two laps down the straight.

* Sectors are now included in the trace graphs. There is a slightly thicker grey line drawn vertically on the trace for the end of each sector.

* Sectors are also drawn on the track maps as grey divisions on the map.

* Improved the rendering of the track maps, especially at higher zooms. This results in smoother track lines, and better color overlays of the braking and throttle traces.

* Improved the rendering on the throttle/brake overlay on the track maps.

* The dates and times of the laps are now shown for all laps. Previously for some iRacing ibt files that contained multiple laps, those laps would all have the same date stamp on them. Now they have the proper stamp based on when you ran the lap.

* You now have to select both the car and track before selecting a lap. This makes it easier to select your lap, especially if you have many laps saved.

* The list of cars and track now displays alphabetically, ignoring case. Previous lower case names appeared at the end of the list.

* You can now choose to sort the laps by date or lap time when choosing them. This should make it easier to find the desired lap.

* When selecting laps you can now sort the laps by fastest sectors.

* You can now specify how old a lap can be in order for it to be included in the lap drop down when selecting a lap. This will make it easier to find laps when you have a lot of them on file. The default age is 2 days.

v 1.1.0
September 23, 2015
* There are several new traces: ride heights, brake temperatures, inner tire temperature, outer tire temperatures, driver inputs.

* You can now specify which traces are displayed in each of the 9 locations. To do so go to the Layout tab of the settings dialog. There you can click on a trace location on the left, and then select the trace to fill that location from the list on the right.

* There is now an expand arrow at the bottom right of the track map. Clicking this doubles the size of the track map. It also shows additional overlays to provide you with additional feedback of your lap and how it compares to any other loaded laps.

* You can now adjust the speed of the playback of a lap. Each time you click the play button the playback speed will slow down by half for the following playback speeds: 1/1, 1/2, 1/4, 1/8, and 1/16. Clicking the play button again at 1/16 speed returns the play back to normal 1/1 time. The current playback speed is indicated at the top right of the track map.

* You can now choose to display the traces in metric (the default) or imperial measurements.

* There is a new option called 'Graph From Zero'. This allows you to choose if certain graphs start at zero even if there are no values to display at that level. Version 1.0 always did this. The default is to have this option off. So for the traces that support it (Shocks, RPM and temperature traces) they will start at a value higher than zero. This will make better use of the available space in the graph.

* You can now specify the color of the overlay line used when comparing laps.

* The throttle/brake and 3D track map settings are now remembered, and reloaded as you had them each time you open the program. By default the throttle/brake overlay is on.

* The Z1 Analyzer now remembers the lap you had loaded and will re-load that lap when restarting. You can turn this option off in the general tab of the settings dialog.

* The three dimensional track map has been improved for better rendering in order to show elevation changes better.

v 1.0.0
June 22, 2015
* Initial release

* Includes the ability to read laps from any sim supported by Z1 Dashboard software. The laps can be recorded by the Z1 Dashboard software's data logging features (available in version 4.3 or higher of the Z1 Dashboard software). iRacing's ibt telemetry files can also be read. In addition any program that can output data into the 'zod' file format can be read.

* The user can zoom in as much as desired onto a part of their lap by double clicking or single clicking and dragging on the trace. Double clicking on a trace that is zoomed in will zoom back out to display the entire lap.

* Once a lap is loaded the user can load a second lap to compare it against by ticking the 'Compare to displayed lap' checkbox that is visible on the Select Lap dialog once the first lap is loaded. When viewing a trace of two laps, the trace always starts both laps at the same location on the track. This location is based on the location of the first lap at the time stamp that starts the trace. If you are viewing the entire lap, then this location would be the start/finish line for both laps, as that is where they both are at the beginning of the lap.

When you zoom in, you are zooming in based on the first lap. For example if you zoom in to a section of the lap starting at 10 seconds, that trace represents 10 seconds into the first lap, and not necessarily 10 seconds into the second lap. If the first car is 10 percent of the way around the track at 10 seconds, then the second lap will be rendered to show the car starting at 10 percent of the way round that track, even if this isn't where it is at 10 seconds into its lap.

As you move to the right on the trace each lap progresses as it would based on its own speed and time. So if you are viewing a 10 second section of the lap, that 10 seconds is based on the first lap. The two cars may go different distances in those 10 seconds. If you play the lap back you will see the time differential displayed, along with two different car dots on the track map. This allows you to see where the two cars are gaining or losing against each other.

* Includes 9 traces, throttle, brake, steering, speed, rpm, gear, shocks, wheel speed and tire temp.

* Includes the track map, with optional throttle/brake overlays. The track map can be displayed in either 2 or 3 dimensions.

* The lap can be played back by clicking on the Play icon.

* The user can customize the display through the options in the settings dialog.

Manual Index
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