PIX4Dcatch viDoc RTK rover Interface Overview


Welcome to the PIX4Dcatch user interface(UI). This article identifies each button and folder providing a quick understanding and reference to how PIX4Dcatch is laid out when using the viDoc RTK rover.

The home/capture screen is the primary interface when opening the app. The signal quality tab and user account options button are found at the top of the screen.


PIX4Dcatch_signal_tab.png     Signal quality tab

PIX4Dcatch_signal_tab.png     The GPS quality tab is visible before connecting the viDoc RTK rover. Select the dropdown menu arrow_down.jpg to connect to the viDoc RTK rover.
  • PIX4Dcatch_GPS_RTK_selection.png

The RTK dialog


The RTK dialog with an optimal connection.

Once the viDoc RTK rover is successfully connected to PIX4Dcatch, the RTK dialog will be visible. This screen displays information that can be used to monitor the status of the connection and the resulting accuracies.

  • PIX4Dcatch RTK dialog header   The header contains the RTK connection icon, access to the RTK device, and Bluetooth settings dialogs.
    • Pix4Dcatch ViDoc RTK fix green icon The green RTK icon indicates the successful connection to the viDoc RTK rover.
    • tune icon The RTK device settings icon displays the current settings input for the RTK connection. 
    • arrow down expand menu iconThe Bluetooth settings icon displays the current Bluetooth device selected.
  • PIX4Dcatch_RTK_dialog_battery.jpg   Indicates the battery level for the viDoc RTK rover. It would be advised to charge before each use.
  • PIX4Dcatch_RTK_connection_accuracy.png   RTK dialog horizontal and vertical accuracy level. Indicates the accuracy to which the viDoc RTK rover is expected to achieve.
  • PIX4Dcatch_RTK_connection_status.png   NTRIP RTK Status. Indicates the status of the RTK NTRIP connection.
    • RTK Fixed: Accuracy in the range of a few centimeters(in).
    • RTK Float: Accuracy in the range of 1m(3ft)
    • DGNSS Only: Accuracy in the range of up to 10m(32ft)
    • Autonomous GNSS fix: Accuracy in the range of more than 10m(32ft)
    • No Fix: The data is not valid, there are not enough satellites visible, or there are internet connection problems.
  • PIX4Dcatch_RTK_connection_HDOP.png HDOP(Horizontal Dilution of Precision) Indicates the current quality of the position and distribution of the satellites. Generally, the HDOP value is considered ideal below 1.

PIX4Dcatch_account_options.png     Account settings


PIX4Dcatch Account dialog.

Account details

  • Create Account: Access form for new users to create an account.
  • Log in: Access form for existing account holders to log in.


  • View Onboarding: View onboarding slides.
  • Documentation: Opens the PIX4Dcatch documentation page to access learning materials.
  • Community: Opens the PIX4Dcatch Community page.
  • Pix4D Terms and Policies: List of Pix4D terms and policies.
  • Third Party licenses: List of third-party licenses.
  • App Usage Disclaimer: Access the PIX4Dcatch App Usage Disclaimer.
  • The installed version of the PIX4Dcatch app.


PIX4Dcatch is ready to capture.

Capture functions and project folders are found at the bottom of the window. The capture button DARK.jpg starts a capture, and the pause button pause.jpg pauses a capture. During capture, the primary.jpg button saves a project, and the cancel_circle.jpg button aborts a project.

Live_preview.png     Live Preview


iOS and Android users who have LiDAR or ToF sensors in their devices can use the Live Preview feature to gain insight into what is being captured.

  • Map_view.png   Top view: Full view of the project area.
  • POV_view.png   First-person view: Focused view from the camera perspective.
  • Cancel_preview.png   Cancel: Close the Live Preview window.
  • point_cloud.png   Point Cloud: View the points collected.
  • camera_position.png   Cameras: Show the camera positions.

Use the live preview to help see what is captured.

file_blk.jpg     Projects


PIX4Dcatch Project dialog.

  • Search projects using keywords.
  • Filter projects by type.
    • Captured
    • Processed
    • Processing
    • All
  • The number of projects.
  • Select multiple projects for deletion.

Each project thumbnail contains unique information including the number of images, upload status, project name, and capture date. Tap and hold a project to access the project menu allowing further actions.


Project thumbnail menu.

  • Rename: Rename the project
  • Upload: Upload to PIX4Dcloud
  • Export all data: Export the entire project to save or process locally.
  • Export captured point cloud (PLY): Exports the collected point cloud from devices with LiDAR or TOF sensors. (This is not used in processing but for visualization in the Live Preview)
  • Export captured mesh (OBJ): Export the collected mesh when selected.
  • Export Logs: Exports the current log files documenting internal aspects of the entire project. It is important to export logs soon after a potential issue as they can be overwritten with new information.
  • Delete: Deletes the project.

GCP_management.png     GCP management


PIX4Dcatch GCP Management dialog.

From the GCP management dialog window, it is possible to:

  • See the number of collections.
  • PIX4Dcatch_GCP_list_map_view_toggle.png Toggle between list and map views.
  • List of existing collections.
    • coordinateSystem_icon.jpg Input coordinate reference system.
    • gcp.png The number of measured points in the collection.
  • New_GCP_collection.png Start a new GCP collection.

Select a collection for the list of points measured.


PIX4Dcatch single point collection dialog.

  • export.jpg Export GCP collection. Complete(full information) and PIX4Dmatic-based files(for direct import to PIX4Dmatic), along with logs are exported.
  • Collection name
  • The number of measured points currently in the collection.
  • PIX4Dcatch_GCP_list_map_view_toggle.png Toggle list and map views
  • Collected points.
    • PIX4Dcatch_measured_GCP.jpg

      PIX4Dcatch single point measurement dialog.

    • Point name.
    • RTK/GPS tag.
    • Horizontal and vertical accuracies.
    • Coordinates measured.
    • calendar.png Date measured.
    • timer.png Measurement duration.
  • New_GCP_button.png Measure a new GCP.
  • Output coordinate reference system for the GCP collection.

settings_button.jpg     Settings


PIX4Dcatch main settings dialog.

Use the Settings dialog to adjust and customize features within the PIX4Dcatch app.

For detailed information: Settings - PIX4Dcatch.

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