bertt

import pyproj
lon = 1231256.4091099831 
lat = -4800453.896456448
alt = 4000024.663498499

transformer = pyproj.Transformer.from_crs("EPSG:4978", "EPSG:4326")
print(transformer)
xyz = transformer.transform(lon, lat, alt)
print('Projected XY', xyz)
lonlat = transformer.transform(xyz[0], xyz[1], xyz[2], direction='INVERSE')

bertt

Two methods to get from 4326 (longitude, latitude) to 4978 (cartesian - ecef). TLDR; use DotSpatial.Positioning when possible (because much faster).


1] using DotSpatial.Positioning (fast):

```
private static System.Numerics.Vector3 ToCartesian(double lat, double lon, double alt)
{
    var pos3d = new Position3D(new Distance(alt, DistanceUnit.Meters), new Latitude(lat), new Longitude(lon));
    var res1 = pos3d.ToCartesianPoint();

bertt

{
   "buffers":[
      {
         "byteLength":16
      }
   ],
   "bufferViews":[
      {
         "buffer":0,
         "byteOffset":0,

bertt

{
   "buffers":[
      {
         "byteLength":16
      }
   ],
   "bufferViews":[
      {
         "buffer":0,
         "byteOffset":0,

bertt

{
  "tilejson": "2.1.0",
  "name": "i09bz13857",
  "description": "",
  "version": "1.1.0",
  "format": "quantized-mesh-1.0",
  "attribution": "",
  "schema": "tms",
  "tiles": [ "{z}/{x}/{y}.terrain?v={version}" ],
  "projection": "EPSG:4326",

bertt

GDAL 3.5.0, dev-4b77cd8111ce6c6b79cb0c75101394367b9e135e, released 2022/05/03

$ ogrinfo --formats
Supported Formats:
  FITS -raster,vector- (rw+): Flexible Image Transport System
  PCIDSK -raster,vector- (rw+v): PCIDSK Database File
  netCDF -raster,multidimensional raster,vector- (rw+vs): Network Common Data Format
  PDS4 -raster,vector- (rw+vs): NASA Planetary Data System 4
  VICAR -raster,vector- (rw+v): MIPL VICAR file
  JP2OpenJPEG -raster,vector- (rwv): JPEG-2000 driver based on OpenJPEG library

bertt

// http://leafletjs.com/examples/quick-start-example.html in TypeScript
/// <reference path="leaflet.d.ts" />
var map = new L.Map("map");
map.setView(new L.LatLng(51.505, -0.09), 13);
var layer =new L.TileLayer("http://{s}.tile.cloudmade.com/BC9A493B41014CAABB98F0471D759707/997/256/{z}/{x}/{y}.png", { maxZoom: 18, attribution: "attribution test" })
layer.addTo(map);

// add marker
var marker = new L.Marker(new L.LatLng(51.5, -0.09));
marker.addTo(map).bindPopup("<b>Hello world!</b><br />I am a popup.").openPopup();

bertt

How to: Creating a new app release in the various store

1] Android App

- Chenge version in project - properties (id, name)

- Project on release

- Archive

bertt

// test

var result = PointRotator.RotatePoint(new Vector2(5.0f, 0), new Vector2(0, 0), Math.PI / 2 );
Assert.IsTrue(Math.Round(result.X, 0) == 0f);
Assert.IsTrue(Math.Round(result.Y,0) == -5);


// RotatePoint method

    public static class PointRotator

bertt

    Cesium.Ion.defaultAccessToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiI1OGUyODEwNC03YTIzLTRjMmItOTk4Ni1iZWNkNGE1MWZhMTkiLCJpZCI6NTQzLCJpYXQiOjE1MjUyNzM4OTd9.F2r6H2XRAcnkHjkFgXAzDieW6TeIxDhTZ5hdikd-_Q8';
    var viewer = new Cesium.Viewer('cesiumContainer', {
      terrainExaggeration : 10.0
    });

    var terrainProvider = new Cesium.CesiumTerrainProvider({
      url : '/tilesets/tiles'
    });
    viewer.scene.terrainProvider = terrainProvider;