Awesome GitHub RepositoriesLow Level Geospatial Libraries

Libvips is a C-based image processing library designed to manipulate large visual assets through a low-memory, parallel processing pipeline. It functions as a streaming image processor that avoids loading entire files into system memory, enabling the handling of massive images in resource-constrained environments. The library distinguishes itself through a demand-driven architecture that constructs a deferred execution plan, computing only the necessary pixels for a final output. By utilizing a cache-friendly tiled processing model and memory-mapped file access, it minimizes latency and redun

A command line toolkit to generate maps, point clouds, 3D models and DEMs from drone, balloon or kite images. 📷

H3 is an open-source library that provides a hierarchical hexagonal grid system for geospatial indexing. It projects the Earth onto an icosahedron and tiles each face with hexagons to minimize distortion, then encodes each hexagon as a 64-bit integer that stores its resolution and position in the hierarchy. This integer encoding enables fast bitwise operations for grid navigation and spatial analysis. The library offers a comprehensive set of grid topology algorithms for computing neighbor relationships, distances, and paths between cells directly on the hexagonal grid without geographic coor

Valhalla is an open-source routing engine that calculates optimal paths and travel times using OpenStreetMap data. It is built around a tiled routing graph framework, allowing map data to be organized into small geographic tiles for efficient regional updates and offline routing capability. The project distinguishes itself through a multimodal routing server that combines automobile, pedestrian, bicycle, and public transit modes into single journeys. It includes a GPS trace matching engine to align noisy coordinates to the most probable road network paths and an isochrone and matrix generator

Libpostal is a C library designed for international address parsing and normalization. It utilizes statistical NLP and a language classifier to decompose unstructured global address strings into structured components and standardize street addresses by expanding abbreviations and resolving regional naming variations across multiple languages. The project provides tools for text transliteration, converting various scripts into standardized Latin-ASCII or NFD forms. It also includes capabilities for address deduplication, using symmetric fuzzy matching to identify whether different address reco

यह प्रोजेक्ट एक क्रॉस-प्लेटफॉर्म मैपिंग SDK और हार्डवेयर-त्वरित रेंडरिंग इंजन है जिसे C++ में कार्यान्वित किया गया है। यह एक साझा भू-स्थानिक कोर प्रदान करता है जो Android, iOS, macOS, Node.js और Qt एप्लिकेशन में इंटरैक्टिव मैप्स को एम्बेड करने की अनुमति देता है। सिस्टम इंटरैक्टिव 3D परिदृश्य और जटिल भू-स्थानिक डेटासेट प्रदर्शित करने के लिए OpenGL और GPU प्रिमिटिव्स का उपयोग करके उच्च-प्रदर्शन वेक्टर टाइल रेंडरिंग पर केंद्रित है। यह एक स्टाइल-संचालित लेयर पाइपलाइन के माध्यम से संकुचित प्रोटोकॉल बफ़र्स को कस्टमाइज़ करने योग्य विजुअल्स में बदल देता है। क्षमता सतह व्यापक स्थान सेवाओं तक फैली हुई है, जिसमें जियोकोडिंग, रीयल-टाइम डिवाइस ट्रैकिंग और इलेक्ट्रिक व पारंपरिक वाहनों के लिए परिष्कृत राउटिंग शामिल है। यह टाइलसेट निर्माण, स्थानिक विश्लेषण और एक्सेसिबिलिटी सत्यापन के साथ कार्टोग्राफिक शैलियों के डिज़ाइन के लिए व्यापक डेटा प्रबंधन टूल्स को भी कवर करता है। प्रोजेक्ट में विभिन्न फ्रंटएंड फ्रेमवर्क के लिए बॉयलरप्लेट एप्लिकेशन स्कैफोल्डिंग उत्पन्न करने के लिए एक कमांड-लाइन टूल शामिल है।

Tippecanoe is a command-line tool used to generate optimized vector tiles for web maps. It converts large-scale geospatial datasets, including GeoJSON, CSV, and Geobuf files, into binary vector tiles or MBTiles SQLite databases. The project is designed to maintain map performance and visual quality across different zoom levels. It achieves this through geospatial data downsampling, which includes simplifying geometries and thinning point density to prevent tile overcrowding and keep tile sizes within specific limits. The tool provides extensive data transformation capabilities, such as attri

Computational geometry and spatial indexing on the sphere

Vehicle Routing Open-source Optimization Machine

2D and 3D map renderer using OpenGL ES

C++ implementation of R*-tree, an MVR-tree and a TPR-tree with C API

You Only Look Twice: Rapid Multi-Scale Object Detection In Satellite Imagery

A command-line tool for converting heightmaps in GeoTIFF format into tiled optimized meshes.

Mapnik implemention of Mapbox Vector Tile specification

Entwine - point cloud organization for massive datasets

OpenOrienteering Mapper is a software for creating maps for the orienteering sport.

gSLICr: Real-time super-pixel segmentation

Indexes points and lines and generates map tiles to display them