When building custom GIS applications using the QGIS API and Qt, it’s often useful to show the current mouse coordinates on the map canvas. A common place to display this information is in the status bar. In this post, we’ll look at a minimal example of how to connect the QGIS map canvas (QgsMapCanvas) to […]
Displaying Mouse Coordinates in a QGIS + Qt Application Read More »
When building a custom GIS application with QGIS API and Qt, one common requirement is to allow users to control how different layers (roads, rivers, boundaries, towns, etc.) are displayed on the map. In this article, we’ll walk through how you can implement a GUI that enables users to: This flexibility ensures that your GIS
Customizing Vector Layers in a Qt Application: Colors, Line Styles, and Visibility Read More »
When developing custom GIS applications, a common requirement is to display vector maps with basic navigation options like zooming in/out, panning, navigating back/forward, and even rotating the map. Using the QGIS API with Qt, we can achieve this in just a few steps. In this post, we’ll walk through a simplified example application that loads
Building a Basic Vector Map Display in QGIS with Zoom, Pan, and Rotation Controls Read More »
Introduction In Geographic Information Systems (GIS), raster data represents information in a grid-based structure such as satellite imagery, aerial photographs, digital elevation models (DEM), or scanned maps. Unlike vector data, which uses points, lines, and polygons, raster data provides continuous coverage across a geographic area. QGIS, one of the most powerful open-source GIS platforms, provides
How to Add a Raster Image in QGIS Using Qt, C++, and QGIS API Read More »
Introduction In mission-critical operations — whether it’s border security, military mission planning, or enterprise asset tracking — decisions rely on live, accurate data. Static maps are no longer enough. Teams need real-time geospatial awareness, where sensor inputs update instantly on the map. At Manya Technologies, we integrate radar, drone telemetry, IoT sensors, and other live
In high-pressure scenarios like mission planning, border surveillance, or air traffic monitoring, every second matters. Operators often juggle multiple data sources, complex map layers, and real-time sensor feeds. In such environments, removing even a single mouse click can speed up response times and improve operational efficiency. This is where offline voice command integration in a
Offline Voice Command Integration in Qt + QGIS + C++ for Mission Planning & Surveillance Read More »
When building GIS applications with QGIS C++ and Qt, giving users direct access to vector layer properties is a must. The QgsVectorLayerProperties dialog in QGIS provides a familiar and powerful interface for managing symbology, metadata, attribute tables, labeling, and much more. In this article, we’ll walk through how to open and manage the vector layer
Displaying Vector Layer Properties in a Qt, QGIS, C++ Application Read More »
At Manya Technologies, we develop custom GIS tools using the powerful QGIS C++ API, integrated seamlessly into Qt interfaces. One essential feature in any GIS viewer is the ability to manage map layers interactively — that’s where the Layer Tree View comes in. In this post, we share a working example of how to implement
Adding a Layer Tree View in a QGIS-based Qt Application using C++ Read More »
In today’s mission-critical environments—be it defense, aerospace, or large-scale infrastructure—real-time spatial awareness is essential. At Manya Technologies, we specialize in building custom GIS applications that offer real-time radar track visualization using powerful open-source technologies like Qt, QGIS, C++, and PostgreSQL/PostGIS. 🛠️ Our Approach We blend robust native application development with GIS intelligence to deliver performant,
