Description
A limitation of OSMTracker is that, from the moment of data capture, there is no mechanism that allows associating more than one data point with a single waypoint. A problem arising from this limitation is that, due to the GPS accuracy of mobile devices, multiple data points captured at the same site often end up associated with slightly different coordinates, which hinders their subsequent analysis and management. For example, this occurs when capturing characteristics such as "tree," "species," or "common name," which all belong to the same point.
This need to capture various data points grouped to a single geographic location is common and is addressed in other data collection tools, such as KoBoToolbox. In KoBoToolbox, a user can answer a full form (with numerical, multiple-choice, text questions, etc.) and associate all those responses with a single GPS location (a point, a line, or an area) in a structured manner. This proposal suggests incorporating similar functionality into OSMTracker, allowing for the capture of various data points grouped into a single waypoint.
The proposed technical solution is to introduce a control panel that allows for the grouping of multiple attributes into a single waypoint. To achieve this, the tag of the GPX 1.1 format (official specification) will be used. The tags are specifically designed to extend the GPX schema with custom data without breaking compatibility with other applications. Below is an example of the expected result in the GPX file (extract, without the section for simplicity):
The GPX with this proposal would look something like this:
This feature would not affect the current XML structure of the button layout.
Use Cases
This functionality is designed to support any scenario where a single geographic location requires the capture of complex, multi-attribute information. Typical users include:
- Field Technicians: Capturing detailed technical specifications (e.g., species, height, health) for single assets like trees or utility poles.
- Researchers: Associating diverse biological or environmental observations with a unique, verified sample site.
- Data Analysts: Benefiting from a clean, structured dataset that is ready for immediate integration into spatial analysis software, avoiding the need for manual record merging.
Benefits
The implementation of grouped data within a single waypoint offers several key advantages for field data collection and subsequent analysis:
- Improved Data Accuracy: By associating all relevant attributes with a single geographic coordinate, the feature eliminates errors caused by GPS drift that occur when multiple attributes are captured as separate, slightly offset points.
- Enhanced Data Consolidation: It creates a clean, structured record for each physical entity (such as a tree or infrastructure asset), preventing the fragmentation of information.
- Streamlined Workflow: Field technicians can complete a full form or set of attributes in one interaction, increasing efficiency and reducing the time spent on site.
- Reduced Post-Processing: Analysts save significant time and effort because they no longer need to perform manual data cleaning or merge scattered GPS points that represent the same physical location.
- Full Interoperability: By using the tag within the GPX 1.1 format, the data remains compatible with standard GIS software and other applications that read GPX files, ensuring the custom information is preserved without breaking external compatibility.
Alternatives
No response
Example (optional)
No response
Submission Checklist
Description
A limitation of OSMTracker is that, from the moment of data capture, there is no mechanism that allows associating more than one data point with a single waypoint. A problem arising from this limitation is that, due to the GPS accuracy of mobile devices, multiple data points captured at the same site often end up associated with slightly different coordinates, which hinders their subsequent analysis and management. For example, this occurs when capturing characteristics such as "tree," "species," or "common name," which all belong to the same point.
This need to capture various data points grouped to a single geographic location is common and is addressed in other data collection tools, such as KoBoToolbox. In KoBoToolbox, a user can answer a full form (with numerical, multiple-choice, text questions, etc.) and associate all those responses with a single GPS location (a point, a line, or an area) in a structured manner. This proposal suggests incorporating similar functionality into OSMTracker, allowing for the capture of various data points grouped into a single waypoint.
The proposed technical solution is to introduce a control panel that allows for the grouping of multiple attributes into a single waypoint. To achieve this, the tag of the GPX 1.1 format (official specification) will be used. The tags are specifically designed to extend the GPX schema with custom data without breaking compatibility with other applications. Below is an example of the expected result in the GPX file (extract, without the section for simplicity):
The GPX with this proposal would look something like this:
This feature would not affect the current XML structure of the button layout.
Use Cases
This functionality is designed to support any scenario where a single geographic location requires the capture of complex, multi-attribute information. Typical users include:
Benefits
The implementation of grouped data within a single waypoint offers several key advantages for field data collection and subsequent analysis:
Alternatives
No response
Example (optional)
No response
Submission Checklist