Node / meshtastic / Meshtastic-Android / files / feature / map / src / commonMain / kotlin / org / meshtastic / feature / map / MapBounds.kt

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T8b949e/*

* Copyright (c) 2026 Meshtastic LLC

*

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation, either version 3 of the License, or

* (at your option) any later version.

*

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with this program. If not, see <https://www.gnu.org/licenses/>.

*/

Tff7b72package T7ee787org.meshtastic.feature.map

Tff7b72import T7ee787org.meshtastic.core.model.Node

T8b949e/** A point on the map, in degrees. Deliberately not either renderer's type — see [MapBounds]. */

Tff7b72data Tff7b72class T56d364MapPointTb4b4b4(Tff7b72val Te6edf3latitudeTb4b4b4: Tffa657DoubleTb4b4b4, Tff7b72val Te6edf3longitudeTb4b4b4: Tffa657DoubleTb4b4b4)

T8b949e/**

* A latitude/longitude box, in degrees.

*

* Neither renderer's box: MapLibre has `spatialk`'s `BoundingBox` and the Google map has `LatLngBounds`, and each

* converts this at its own edge. Keeping the maths here is the point — it is the same maths, and it lived only in the

* MapLibre module, which the Google flavour cannot depend on, so the Google map hand-rolled `LatLngBounds.builder()` in

* three places instead.

*/

Tff7b72data Tff7b72class T56d364MapBoundsTb4b4b4(Tff7b72val Te6edf3southTb4b4b4: Tffa657DoubleTb4b4b4, Tff7b72val Te6edf3westTb4b4b4: Tffa657DoubleTb4b4b4, Tff7b72val Te6edf3northTb4b4b4: Tffa657DoubleTb4b4b4, Tff7b72val Te6edf3eastTb4b4b4: Tffa657DoubleTb4b4b4) Tb4b4b4{

Tff7b72companion Tff7b72object Tb4b4b4{

T8b949e/**

* A box covering [points], or null when there are none.

*

* Null rather than a box at (0, 0): treating "no data yet" as a real location is how the OSMdroid map used to

* open in the Atlantic.

*

* A single point, or several stacked on one spot, yields a zero-area box the camera cannot fit to — a

* stationary node's whole position track is exactly that — so a degenerate box is padded to something framable.

*

* Longitudes are min/maxed linearly, so a mesh straddling the antimeridian fits the long way round. Deliberate,

* matching the KML converter's polygon stance: wrapped bounds would have to flow through two renderers'

* camera-fit APIs to pay off, and no mesh this app has met sits on the date line.

*/

Tff7b72fun Td2a8ffaroundTb4b4b4(Te6edf3pointsTb4b4b4: Te6edf3ListTff7b72<Te6edf3MapPointTff7b72>Tb4b4b4)Tb4b4b4: Te6edf3MapBounds? Tb4b4b4{

Tff7b72if Tb4b4b4(Te6edf3pointsTb4b4b4.Te6edf3isEmptyTb4b4b4(Tb4b4b4)Tb4b4b4) Tff7b72return Tff7b72null

Tff7b72var Te6edf3south Tff7b72= Te6edf3pointsTb4b4b4.Te6edf3firstTb4b4b4(Tb4b4b4)Tb4b4b4.Te6edf3latitude

Tff7b72var Te6edf3north Tff7b72= Te6edf3south

Tff7b72var Te6edf3west Tff7b72= Te6edf3pointsTb4b4b4.Te6edf3firstTb4b4b4(Tb4b4b4)Tb4b4b4.Te6edf3longitude

Tff7b72var Te6edf3east Tff7b72= Te6edf3west

Te6edf3pointsTb4b4b4.Te6edf3forEach Tb4b4b4{ Te6edf3point Tff7b72-Tff7b72>

Te6edf3south Tff7b72= Te6edf3minOfTb4b4b4(Te6edf3southTb4b4b4, Te6edf3pointTb4b4b4.Te6edf3latitudeTb4b4b4)

Te6edf3north Tff7b72= Te6edf3maxOfTb4b4b4(Te6edf3northTb4b4b4, Te6edf3pointTb4b4b4.Te6edf3latitudeTb4b4b4)

Te6edf3west Tff7b72= Te6edf3minOfTb4b4b4(Te6edf3westTb4b4b4, Te6edf3pointTb4b4b4.Te6edf3longitudeTb4b4b4)

Te6edf3east Tff7b72= Te6edf3maxOfTb4b4b4(Te6edf3eastTb4b4b4, Te6edf3pointTb4b4b4.Te6edf3longitudeTb4b4b4)

Tb4b4b4}

Tff7b72if Tb4b4b4(Te6edf3south Tff7b72=Tff7b72= Te6edf3north Tff7b72&Tff7b72& Te6edf3west Tff7b72=Tff7b72= Te6edf3eastTb4b4b4) Tb4b4b4{

Te6edf3south Tff7b72-Tff7b72= Te6edf3SINGLE_POINT_PAD_DEG

Te6edf3north Tff7b72+Tff7b72= Te6edf3SINGLE_POINT_PAD_DEG

Te6edf3west Tff7b72-Tff7b72= Te6edf3SINGLE_POINT_PAD_DEG

Te6edf3east Tff7b72+Tff7b72= Te6edf3SINGLE_POINT_PAD_DEG

Tb4b4b4}

Tff7b72return Te6edf3MapBoundsTb4b4b4(Te6edf3south Tff7b72= Te6edf3southTb4b4b4, Te6edf3west Tff7b72= Te6edf3westTb4b4b4, Te6edf3north Tff7b72= Te6edf3northTb4b4b4, Te6edf3east Tff7b72= Te6edf3eastTb4b4b4)

Tb4b4b4}

T8b949e/** A box covering every node that has a fix, or null when none does. */

Tff7b72fun Td2a8ffaroundNodesTb4b4b4(Te6edf3nodesTb4b4b4: Te6edf3ListTff7b72<Te6edf3NodeTff7b72>Tb4b4b4)Tb4b4b4: Te6edf3MapBounds? Tff7b72=

Te6edf3aroundTb4b4b4(Te6edf3nodesTb4b4b4.Te6edf3filter Tb4b4b4{ Tffa657itTb4b4b4.Te6edf3validPosition Tff7b72!Tff7b72= Tff7b72null Tb4b4b4}Tb4b4b4.Te6edf3map Tb4b4b4{ Te6edf3MapPointTb4b4b4(Tffa657itTb4b4b4.Te6edf3latitudeTb4b4b4, Tffa657itTb4b4b4.Te6edf3longitudeTb4b4b4) Tb4b4b4}Tb4b4b4)

Tff7b72private Tff7b72const Tff7b72val Te6edf3SINGLE_POINT_PAD_DEG Tff7b72= T79c0ff0.01

Tb4b4b4}

Tb4b4b4}