# KartenApp

A topographic map of these DTK25 sheets. The user names Ziele on it and, when the device can provide it, sees their own Standort.

## Language

**Karte**:
The topographic map formed by the Blätter on hand.
_Avoid_: Layer, basemap

**Blatt**:
One DTK25 sheet. A Koordinate is on the Karte only when a Blatt covers that point.
_Avoid_: Map, Sheet

**Kachel**:
One prepared raster image: a small piece of the Karte at one scale. A Blatt is cut into many Kacheln.
_Avoid_: Blatt, Tile

**Übersicht**:
The catalog of every Kachel that exists. It is part of the app and contains no pixels.
_Avoid_: Vorschau, Minimap

**Cache**:
The Kacheln stored on the device.
_Avoid_: Verlauf, Speicher

**Gebiet**:
A named set of Kacheln. Gebiete may overlap. Hessen is the Gebiet that contains every Kachel currently in the Übersicht.
_Avoid_: Area, Region, Ausschnitt

**Ziel**:
One position the user names on the Karte. The Karte holds any number of them.
_Avoid_: Standort, Wegpunkt

**Koordinate**:
The MGRS writing of a Ziel: Gitter, Rechtswert, and Hochwert. It is not a bare UTM easting and northing.
_Avoid_: Standort, UTM-Zahlen, GPS, Punkt

**Gitter**:
The first part of a Koordinate: UTM zone, latitude band, and 100 km square. Example: 32U MA.
_Avoid_: Zone, prefix, part 1

**Rechtswert**:
The second part of a Koordinate: five digits, the easting in metres inside the Gitter. Example: 67030.
_Avoid_: Easting, X, part 2

**Hochwert**:
The third part of a Koordinate: five digits, the northing in metres inside the Gitter. Example: 78109.
_Avoid_: Northing, Y, part 3

**Standort**:
The user's own position, when the device can provide it.
_Avoid_: Koordinate, GPS-Punkt, location

**Entfernung**:
The straight-line distance between the Standort and one Ziel. It exists only while a Standort is known.
_Avoid_: Route, Weg, Distanz