geospatial
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navibyte
Geospatial data structures, tools and utilities for Dart and Flutter.
Applied on geographic coordinates, projections and tiling schemes related to geographic coordinates (and projections from geographic to projected coordinates).
Enhancing the base implementation of #57. New "projected tile matrix set" would be configurable - `projection` (from geographical coordinates to projected coordinates, mostly metric) - `projBox`(projected bounding box) - `tileSize`...
Movable type scripts for [latlong](https://www.movable-type.co.uk/scripts/latlong.html) and [geodesy-library](https://www.movable-type.co.uk/scripts/geodesy-library.html) might be good sources. See related github repo [geodesy](https://github.com/chrisveness/geodesy) by `chrisveness` (with MIT license) too. Maybe porting some JavaScript to Dart then... Need...
## Coordinate transformations and projections Code | Library | Description ------ | ------- | ----------- [proj4dart](https://github.com/maRci002/proj4dart) by maRci002 | [](https://pub.dev/packages/proj4dart) | A Dart library to transform point coordinates from...
Output consistently coordinate values (decimals and stripped ".0" postfixes on some double values without fraction digits). Changes on GeoJSON and WKT outputs (geometries), and toText methods for positions, position series...
Add method like following to `Projection` mixin: ```dart R projectBox(Box source, {required CreateBox to}); ``` Plan to calculate: 1. get distinct corners (one, two or four) in 2D for the...
GeoJSON specs: there should be "geometry" element under "Feature", either `null` or actual "Geometry" object.
For example result from `feature item by id` query: ```dart class FeatureItem with MetaAware, EquatableMixin { /// Create a feature item instance with [feature] and optional [meta]. const FeatureItem(this.feature, {Map?...
The `geodata` package has feature sources for geojson and ogc api features. For geojson file or web resource data source, add a property of `sourceCrs` to tell what coordinate reference...
See the standard for reference: http://docs.opengeospatial.org/is/17-069r3/17-069r3.html#http_status_codes Map status codes defined in OGC API Features + Common standards to exception on geospatial client for these services.