Land offers different ways to edit and analyze your tracks. In addition to the functions available in the track editor and in the properties, the track context menu includes a set of tools that allow quick and precise modifications.
These tools are especially useful for:
- Correcting errors in GPS-recorded tracks.
- Adjusting data such as altitude, times, or speed.
- Simplifying or splitting a track into several parts.
- Preparing a track before navigation or final analysis.
This article explains in detail how each available tool works and in which cases it is useful to use them.
Accessing the tools
The available tools may vary depending on where the context menu is opened from:
- If you right-click on a point of the track on the map, additional tools specific to that point will appear, such as Split track at this point or Set start point here.
- If you right-click on the track in the data tree, only the general tools that affect the entire track will be shown.
Close all except this
This tool allows you to keep only the selected track open and close all others loaded in Land.
It is useful when working with multiple tracks and you want to focus on just one, reducing the visible information on the map and in the data tree.
Calculate ground altitude for each point
This tool allows you to reassign the altitude of all points in the track using the relief model loaded in Land.
It is useful when the track does not contain altitude information or when the values are imprecise, for example, if it was recorded with a device without a barometric altimeter or with irregular GPS signal. When recalculating altitudes, the tool can correct small errors or outlier points, improving the altimetry data and offering a more accurate elevation graph.
When running the tool, Land queries the active relief and updates the altitude of each point according to the elevation indicated in the relief for that position.
Important: The result will depend on the quality and resolution of the relief model you have open. Make sure to use the best available relief for the track area before applying this tool; otherwise, altitudes may not accurately reflect the terrain.
Move track
This tool allows you to move the entire track by applying a shift defined on the X, Y, and Z axes (in meters) or a time offset (in seconds).
It can be useful in the following cases:
- When the track appears shifted relative to the map and you want to correct its position.
- When the entire track has a constant altitude error and you need to adjust its level (Z axis).
- When you need to adjust the track times, for example, to synchronize it with other tracks or correct a time offset of the recording device.
The shift in X/Y modifies the track’s position on the map, the shift in Z changes the altitude of all points, and the time shift advances or delays the times of each track point.
Step by step
- Right-click on the track and select Tools > Shift track.
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Enter the shift values in the X, Y, GPS altitude, or Time fields.
- Click OK to apply the changes.
Shifts are entered in meters (m) for position and altitude, and in seconds (s) for time. You can enter negative values to shift the track in the opposite direction or advance the time instead of delaying it.
Import heart rate monitor data from another file
This tool allows you to add heart rate information to the track from an external heart rate monitor file.
It is useful when the track was recorded without a heart rate sensor or if the heart rate data was collected with a different device than the one that recorded the track. This way, you can combine both records and view the pulse evolution along with the route.
Step by step
- Right-click on the track and select Tools > Import heart rate monitor data from another file.
- Select the heart rate monitor file containing the heart rate data (compatible formats: Polar Precision Performance (*.hrm) and Cateye Pulse File (*.csv)).
- Click OK to import the data and link it to the track.
After importing the data, you will be able to see the heart rate in the graph, in the properties window, and reflected in the track color.
Important: For the heart rate information to synchronize correctly with the route, both files must correspond to the same time period of the activity.
Split track into multiple tracks
This tool allows you to split a track into several smaller segments automatically or manually.
You can split the track based on different criteria:
- By stop points: Land automatically detects areas where there was no movement and cuts the track at those points.
- By number of points: you can specify a fixed number of points for each segment, generating several tracks of equal size.
- Split using the track segments: Land will divide the track according to the segments within the track.
Remove stop points at the beginning and end
This tool allows you to automatically remove points where there was no movement at the start or end of the track.
It is useful to clean the track from static sections that are not part of the actual route, such as the time before starting the activity or the final minutes before stopping the recording.
When running the tool, Land analyzes the speed of the first and last points of the track and removes those below the movement threshold, keeping only the useful part of the route.
Important: This tool only removes stop points located at the beginning and end of the track; it does not affect intermediate stops.
Reduce number of points
This tool allows you to simplify a track by reducing the number of points it contains while maintaining the general shape of the route.
It is useful to optimize performance of the software or GPS devices, especially when the track contains a very high number of points. It is also practical for preparing a track before sharing or exporting it to formats with size limitations.
When applying the tool, you can specify the desired final number of points. Land recalculates the track distributing the points evenly so that the original geometry is preserved as accurately as possible.
Step by step
- Right-click on the track and select Tools > Reduce number of points.
- Enter the final number of points you want to keep in the track.
- Click OK and check the result on the map and in the profiles. If necessary, use Ctrl+Z to undo and try another value.
Important: The fewer points kept, the more simplified the track will be. It is recommended to test different values to find the right balance between accuracy and lightness. Keep in mind that the final values of the simplified track (such as distance, elevation gain, or times) vary compared to the original track.
Assign time and speed
This tool allows you to assign or recalculate the times and speeds of a track, generating new temporal information based on values entered by the user.
It is useful for tracks that do not contain time information or when you want to modify the times to adjust the average speed or simulate a realistic activity. It can also be used to recalculate navigation times and arrival estimates based on a specific speed.
When applying this tool, you can define a start date and time, as well as an average speed. Land will automatically calculate the intermediate times of each track point according to the distance and indicated speed.
Important: The new values will replace the original temporal information of the track. It is recommended to save a copy of the file before applying this tool.
Remove aberrant points
This tool allows you to detect and automatically remove track points that present anomalous values, such as sudden position jumps or impossible speeds.
It is useful for cleaning tracks recorded with irregular GPS signals or interruptions during recording, as it helps obtain a more accurate route and more consistent data.
Invert track
This tool allows you to change the direction of the track, swapping the start and end points.
It is useful when you want to travel a route in the opposite direction to the original or prepare the same route for the return trip. It can also be used to adjust navigation direction in roadbooks or training tracks.
Track report
This tool generates a detailed report of the track with the most relevant data of the activity, such as total distance, time, elevation gains, speeds, and altitude profile.
It is useful to analyze a route globally or keep a record in a printable format.
The report includes, among other data:
- Total distance and travel time.
- Accumulated positive and negative elevation gain.
- Average and maximum speed.
- Altitude profile of the track.
- View of the track on the map you have open.
To print the report, right-click on the track and select Print.
You can also save it as an HTML file with Right-click > Save as. It is recommended to create a specific folder for each report, as images will be saved inside that folder.
Split track at this point
This tool allows you to split a track into two parts starting from the selected point on the map.
Note: When running the tool, Land cuts the track at the chosen point and creates two new independent tracks, which will be shown in the data tree. Each will retain the original information, such as altitude, speed, and times.
Important: This option is only available when opening the context menu from a track point on the map; it does not appear when clicking in the data tree.
Step by step
- Right-click on the track point on the map and select Tools > Split track at this point.
- In the pop-up window, choose an option:
- Split into 2 independent tracks: creates two separate tracks from the chosen point (each with its own name and independent editing).
- Split into 2 segments of the same track: creates two segments (laps) within the same track, maintaining a single entity with two differentiated segments.
- Click OK to apply the split, or Cancel to exit without changes.
Set start point here
This tool allows you to define a new start point for the track, modifying its traversal order.
It is useful to adapt a circular route and start from another place on the route.
When applying this tool, Land reorganizes the track points so that the selected one becomes the first, maintaining continuity and all original information.
Important: This option is only available when opening the context menu from a track point on the map; it does not appear when clicking in the data tree.
Import nearby waypoints as roadbook points
This tool allows you to create roadbook points from waypoints near the track.
It is useful to convert existing waypoints into references for the roadbook, facilitating navigation and identification of points of interest during the route.
When executed, Land searches for the closest waypoints to the track points and generates corresponding roadbook points at those positions, keeping the original name, icon, and description.
Important: Only waypoints in the active file are searched. You can change it by right-clicking on the file in the data tree.
The proximity value between track and waypoints can be configured in Preferences, section Tracks > Distance to assimilate waypoint.
This way, waypoints are automatically integrated into the route as roadbook points, ready to be used during navigation.
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