Export to third-party applications

HxMap allows the user to export position and orientation metadata for images in different formats for third-party applications.

To export the data, select images from the data source, then choose Tools menu -> Export EOP or Export Footprints in the Quality Control, Triangulation, or Product Generation perspective.

Export EOP

Export EOP tool creates position and orientation metadata and optionally camera metadata for 3rd party photogrammetric workstation software. See Customize CSV Export to configure camera metadata export.

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Format

HxMap supports EOP export in the following formats.

Format

Description

CSV

Exterior and camera model parameters for third-party workflow support. CSV export supports EOP computation in two different methods.

  • True EOP: Horizontal and vertical coordinates are treated independently. In case of a projected CRS the different scales for the horizontal and vertical reference system are maintained in the output parameters. Requires that the 3rd party application apply a rigorous transformation between image and ground coordinate systems for stereo measurement in projected CRS.

  • Best Fit EOP to Map projection: In case of a projected CRS, vertical coordinates are scaled to match horizontal coordinates by single photo resection. This allows the 3rd party application to nominally treat the projected coordinate system as an LSR system for stereo measurement.

  • LSR: the EOP values are given in the same local space rectangular coordinate system which HxMap uses. LSR export from processed sessions delivers one anchor point per strip. LSR export from projects / blocks delivers a single anchor point for the entire block. The anchor point of the LSR system is described as a WKT2 string in the corresponding .prj file.

LPS

Exterior parameters, camera model, and image measurements (if available from HxMap APM) formatted for the IMAGINE Photogrammetry / ORIMA triangulation workflow.

GORI

Interior and exterior parameters for each image individually and used in legacy Tridicon 3D modelling workflows (CityModeller, BuildingFinder, TextureMapper etc).

IPAS CO+ (deprecated)

Exterior, installation, and metadata parameters formatted for boresight and principle point calculation in Leica IPAS CO+ application.

  • photoId.txt: Photo ID file is an text file. Each line contains the following information:

    • Event GPS Time (units are seconds)

    • Photo ID

  • Installation_settings_RCD30_XXXXX.ini: contains the lever arms values for the camera system installation as entered in the Leica FCMS system for the camera. XXXXX is replaced with the camera head serial number.

  • event.evt : camera event file is an text file.

Use Adjusted Orientation

Export adjusted EOPs based on HxMap triangulation result. Only images with adjustment result will be included in the export in this case

Coordinate Reference System

Select a coordinate reference system for the position and orientation parameters to be transformed into. Note the differences in coordinate handling noted above between True and Best Fit. The coordinate reference system will be selected automatically based on the data source selected but can be customized by the user.

Customize CSV Export

HxMap allows to customize the entries exported into the CSV files as well as their order. CSV Settings are in File menu → Settings → Export EOP(CSV). Configure which attributes to include and change their order via drag & drop. Apply with "OK".

The SensorID attribute must be included in the Export Options in order for the camera interior orientation parameter file (.iop) to be generated during export. The .iop file includes all relevant camera parameter required to setup the camera in the 3rd party application.

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Export Footprints

Footprints can of data captures may be exported from Sessions, Blocks and Projects. Select the captures to export in the Data Source, then choose Tools menu → Export Footprints from Session, Quality Control and Product Generation perspectives. The tool allows to specify which coordinate system the footprints should be georeferenced in. Once the output folder is selected, HxMap will create a set of shapefiles including metadata into that location.