ngageoint/geopackage

Main Page for NGA GeoPackage Efforts

Table of Contents

• MapCache
• GeoPackage
• Simple Features
• Projections
• Coordinate Reference Systems
• TIFF
• OGC API
• Color
• Grid

Dependency Graphs

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MapCache

An app that utilizes and demonstrates the functionality in the GeoPackage Mobile Libraries.

• Android - An Android app that can be built and installed from Android Studio or directly from the APK.

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• iOS - An iOS app that can be built and installed from Xcode.

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• Desktop - A desktop application running in Electron, built for Windows, Linux, and MacOS.

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GeoPackage

Main Page for the NGA GeoPackage Libraries providing OGC GeoPackage spec implementations

An OGC Certified SDK that provides the ability to manage GeoPackage files providing read, write, import, export, share, and open support. Open GeoPackage files provide read and write access to features and tiles.

• Java – A Java library providing GeoPackage functionality and command line tools. Relies on Core Java.

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• Android - An Android SDK providing GeoPackage functionality and utilities to Android apps. Relies on Core Java.

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• Android Map - An Android Map SDK providing Google Map library implementations in addition to the inherited base GeoPackage Android functionality.

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• iOS - An iOS SDK providing GeoPackage functionality and utilities to iOS apps.

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  • Official Reference Implementation
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• JavaScript - A JavaScript library providing GeoPackage functionality and utilities to node and web applications.

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• Core Java - A non-standalone library providing core GeoPackage functionality to the Java and Android libraries.

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• NGA Extensions - NGA extensions to the GeoPackage spec as defined by the OGC GeoPackage extension mechanism and defined using the extension template.

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• Examples - GeoPackage file examples

• SQLite Exec - Command utility that executes SQL statements on a SQLite database, including GeoPackages.

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Simple Features

Libraries based upon the OGC Simple Feature Access standard (not GeoPackage specific).

Java

• Simple Features Java - Base library of geometry objects and utilities.

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• Simple Features Well-Known Binary Java - Library for writing and reading Simple Feature Geometries to and from Well-Known Binary.

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• Simple Features Well-Known Text Java - Library for writing and reading Simple Feature Geometries to and from Well-Known Text.

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• Simple Features GeoJSON Java - Library for writing and reading Simple Feature Geometries to and from GeoJSON.

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• Simple Features Projection Java - Library for performing projection conversions between Simple Feature Geometries.

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iOS

• Simple Features iOS - Base library of geometry objects and utilities.

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• Simple Features Well-Known Binary iOS - Library for writing and reading Simple Feature Geometries to and from Well-Known Binary.

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• Simple Features Well-Known Text iOS - Library for writing and reading Simple Feature Geometries to and from Well-Known Text.

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• Simple Features GeoJSON iOS - Library for writing and reading Simple Feature Geometries to and from GeoJSON.

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• Simple Features Projection iOS - Library for performing projection conversions between Simple Feature Geometries.

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JavaScript

• Simple Features JavaScript - Base library of geometry objects and utilities.

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• Simple Features Well-Known Binary JavaScript - Library for writing and reading Simple Feature Geometries to and from Well-Known Binary.

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• Simple Features Well-Known Text JavaScript - Library for writing and reading Simple Feature Geometries to and from Well-Known Text.

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• Simple Features GeoJSON JavaScript - Library for writing and reading Simple Feature Geometries to and from GeoJSON.

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• Simple Features Projection JavaScript - Library for performing projection conversions between Simple Feature Geometries.

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Projections

Library for performing projection conversions between coordinates (not GeoPackage specific).

• Java - A Java library providing projections functionality.

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• iOS - An iOS library providing projections functionality.

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• JavaScript - A JavaScript library providing projections functionality.

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• PROJ - An OSGeo PROJ fork to support C/C++ CocoaPods for use on iOS and other Apple platforms.

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• Project - Command utility to perform coordinate transformations from a source projection to a target projection.

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Coordinate Reference Systems

Library implementation of the OGC Geographic information — Well-known text representation of coordinate reference systems specification (not GeoPackage specific).

• Java - A Java library providing Coordinate Reference System and Well-Known Text functionality.

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• iOS - An iOS library providing Coordinate Reference System and Well-Known Text functionality.

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• Pretty - Command utility to parse and pretty print OGC Coordinate Reference System Well-Known Text.

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TIFF

Library for reading and writing Tagged Image File Format files (not GeoPackage specific).

• Java - A Java library providing Tagged Image File Format functionality.

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• iOS - An iOS library providing Tagged Image File Format functionality.

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OGC API

Libraries based upon the OGC API Specification (not GeoPackage specific).

• Features JSON Java - A Java library for writing and reading OGC API - Features to and from JSON.

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• Features JSON iOS - An iOS library for writing and reading OGC API - Features to and from JSON.

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Color

Library providing color representation with support for hex, RBG, arithmetic RBG, HSL, and integer colors (not GeoPackage specific).

• Java - A Java color library.

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• iOS - An iOS color library.

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• JavaScript - A JavaScript color library.

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Grid

Libraries providing geospatial reference system grid functionality (not used by or specific to GeoPackage).

Java

• Grid - Common geospatial reference system grid library.

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• MGRS - Military Grid Reference System library. Relies on Grid.

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• GARS - Global Area Reference System library. Relies on Grid.

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Android

• MGRS - Military Grid Reference System library. Relies on MGRS Java.

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• GARS - Global Area Reference System library. Relies on GARS Java.

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iOS

• Grid - Common geospatial reference system grid library.

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• MGRS - Military Grid Reference System library. Relies on Grid.

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• GARS - Global Area Reference System library. Relies on Grid.

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JavaScript

• Grid - Common geospatial reference system grid library.

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• MGRS - Military Grid Reference System library. Relies on Grid.

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• GARS - Global Area Reference System library. Relies on Grid.

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geopackage's Issues

Various Java implementations are not distinct

The first three implementations listed (Java, Core Java, Android) would be easier to understand if the commonality / differences between them were identified.

NSG GeoPackage Raster Tile Support

Can you please add support in all the Libraries for NSG GPKG Support

Invalid geometry for feature id == 4 of table non_linear_geometries of example.gpkg

http://ngageoint.github.io/GeoPackage/examples/java/example.gpkg has in its non_linear_geometries table for feature of id 4 the following geometry (hexadecimal dump):

47500000000010E600000000
05 <-- MultiLineString
0000000100000000
08 <-- CircularString
00000005C05E96E978D4FDF44047D395810624DDC05E9645A1CAC0834047D3126E978D50C05E9645A1CAC0834047D4395810624EC05E96E978D4FDF44047D4395810624EC05E96E978D4FDF44047D395810624DD

This is a MultiLineString (type = 5) made of a CircularString (type = 8).
This illegal. The value of the top geometry type should MultiCurve = 11.

Found when testing with GDAL GeoPackage driver

No test data for NGA extensions

There are NGA defined extensions that are documented, but the is no representative data that allows testing, or shows the intended use.