QGeoView (QGV)
QGeoView is a Qt / C ++ widget for visualizing geographic data.
Headings
QGeoView allows to show different kind of geographic data, like tiled layers, raster or vector data. Component is based on QGraphicsView and focused on usability and performance. QGeoView public interface try to follow best practices from OpenLayers and Google Maps API and supports all basic map features, like:
- EPSG3857 projection (others can be added)
- Camera changes: scaling, rotation, moving
- TMS (OSM, Google, Bing or custom)
- Map control widgets
QGeoView uses a hierarchical object storage system, which can store both visual objects (for example, raster or shapes) and non-visual objects (for example, a layer of items). Override in paint event for the visual object allow you to show on the map any geo-data from any source. However, QGeoView itself does not provide methods for reading/parsing of geo-data sources (files). The only exception are TMS servers and bitmap images, for all other sources you need to extend solution.
Getting Started
These instructions will get you a copy of the project up and running on your local machine for development and testing purposes.
Prerequisites
What things you need:
- C++11 compiler (GCC, Clang, MinGW,...)
- Qt 5.6 or higher (core, gui, widgets, network)
- qmake or cmake
- doxygen (optional)
- pre-commit (optional) https://pre-commit.com/
Installing
If you use qmake
cd <build-dir>
qmake <source-dir>/QGeoView.pro
make
make install QGV_DESTDIR=/path/to/install
If you use cmake
cd <build-dir>
cmake <source-dir>
cmake --build . --config Release --target install -- DESTDIR=/path/to/install
If you use doxygen (documentation)
cd <source-dir>
doxygen
Documentation and demo
Documentation: https://amonranet.github.io/QGeoView/
You can see here small video: QGeoView Demo or use demo example to see all QGeoView features:
<build-dir>/qgeoview-demo
Community
For additional help, join in the AmonRaNet Discord.
Author
Andrey Yaroshenko (AmonRaNet)
Credits
bakerb845 for helping with Qt6 adaptation
Versioning
QGeoView uses SemVer for versioning. For the versions available, see the tags on this repository.
License
This project is licensed under the LGPL License v3.