Clone wiki

QMapShack / AxGlossary

Prev (Complete table of contents) | Home | Manual | Index | (Index) Next



Glossary

Activity
Means of motion (pedestrian, bicycle, car, ...) for part (range) of a track.
BRouter
Router application for finding a route between two points using the topographical data from OpenStreetMap. The router can
  • handle different routing profiles,
  • use elevation data,
  • calculate alternative routes,
  • process no-go areas and lines,
  • work online and offline.
DEM
Abbreviation for Digital Elevation Model. DEM data provides elevation data for maps. QMapShack can handle this data from different sources with the help of VRT files that describe the properties of the downloaded elevation data.
Diary
See Roadbook.
Douglas-Peuker filter
A track filter for smoothing recorded tracks and for removing superfluous trackpoints from a track.
EPSG code
A 4- or 5-digits code which identifies a geodetic coordinate system or its components (projection, datum).
Filter
See Track filter.
GDAL
Abbreviation for Geospatial Data Abstraction Library. Library for handling raster and vector geospatial data formats.
GIS data
Abbreviation for Geographic Information Systems data. This data includes all tracks, routes and waypoints used in QMapShack.
gmapsupp.img
Typical file name and at the same time term for describing widely used container format for Garmin-style vector maps.
Line
See Polyline.
Map cache
Special storage location where map data is saved temporarily in a format suitable for fast reloading. One of the advantages of the map cache is that cached online map tiles can be displayed immediately instead of waiting for the online map server.
Map view
A window where different types of maps and where tracks, routes and waypoints are displayed and handled.
Maps window/tab
Window/tab in QMapShack where the user can define and activate the vector, raster or online maps for a map view.
No-go area
An area that can't be crossed by a route or a track. In QMS no-go areas can be created from normal areas. The BRouter routing engine can process no-go areas.
No-go line
A line that can't be crossed by a route or a track. In QMS no-go lines can be created from routes or tracks. The BRouter routing engine can process no-go lines.
Planetsplitter
Part of the Routino offline router package. Planetsplitter creates an efficient routing database from OpenStreetMap data.
Polyline
Also denoted as Line or GIS item with multiple points. A series of connected straight line intervals linking given points. Tracks, routes, and area boundaries are polylines.
Roadbook
Also denoted as "Diary". A tabular overview of all data in a project.
Routing method
The method used for creating automatically intermediate subpoints of a track or route between 2 consecutive given waypoints.
Routino database
Preprocessed form of OpenStreetMap routing data for use with Routino router.
Routino
Offline router application for finding a route between two points using the topographical data from OpenStreetMap. To optimize the routing a custom database format is used.
Slope at geographical location
Value of the steepest ascent or descent at a given geographical location calculated from DEM data. It informs about the steepest ascent resp. descent in the terrain around a given location. Measured in degrees. Always nonnegative values. Displayed in the QMS status line or as adjustable elevation property in a map.
Slope of terrain (terrain slope)
Slope at geographical location of a trackpoint. Can be attached with the help of the Calculate terrain slope track filter to trackpoints. Can be displayed in a graph in the track edit window. Terrain slope and track slope are to different features of a trackpoint!
Slope of track
Calculated from the elevation difference and the distance between 2 successive waypoints. It informs about the ascent or descent along the track. It can have positive values (for ascent) and negative values (for descent). Measured in degrees. Can be displayed in a graph in the track edit window.
Terrain slope
See Slope of terrain.
TMS
Abbreviation for Tile Map Service. A TMS file provides access to cartographic maps on special map servers.
Track details dialog
Also denoted as "Track edit window". Window that displays various information about a track and that allows editing of some track data.
Track edit mode
Special state of a track in which trackpoints can be edited. To do this a copy of the track is created. The user carries out the editing (add, move, delete of points, assign activity, ...) on this copy and at the end he decides whether to save the changes to the original or to a new track, or if he wants to abort editing.
Track edit window
See Track details dialog.
Track filter
Tool to manipulate a track in a predefined way. QMS supports track filters for elevation, timestamps, splitting tracks and others.
Track range
A sequence of trackpoints of a track which can be handled separately (copy, assign activity, hide, delete, recalculate,...).
Track segment
Each track consists of an ordered list of one or more track segments. A track segment consists of an ordered list of trackpoints. When combining (joining) tracks in QMS, the track segments of all selected tracks are combined.
Track subpoint
When creating a track the user creates with the help of mouse clicks (ordinary) trackpoints. Depending on the selected routing method additional trackpoints can be added automatically by the routing algorithm. These additional trackpoints are called subpoints.
Trackpoint, hidden
Trackpoints in a track which are not displayed in a map view and not used in the calculation of global track data (length, ascent, ...).
VRT Builder
QMapShack tool for building VRT files from other data such as elevation data or raster maps. This tool calls the gdalbuildvrt tool of the GDAL package.
VRT
The VRT file format is a format used for describing virtual geospatial data composed from various other geospatial data such as elevation data. QMapShack can use elevation data if it is provided as VRT file. Warning: VRT files use relative path names to point to other files. Never move them to another location!
Waypoint, attached to track
A waypoint that is at the same time a trackpoint of a track. With the help of waypoints attached to a track the user can define track legs for which the roadbook of the track gives additional information.
WMTS
Abbreviation for Web Map Tile Service. A WMTS file provides access to cartographic maps on special map servers.
Workspace
The part of the user interface (GUI) where the user can work with projects and their data (waypoints, tracks, routes).

Prev (Complete table of contents) | Home | Manual | Index | Top | (Index) Next

Updated