Compare RectLabel vs. SolveSpace

An offline tool designed for image annotation facilitates both object detection and segmentation tasks. Users can create shapes like polygons, cubic bezier curves, line segments, and individual points for precise labeling. It allows for the drawing of oriented bounding boxes specifically tailored for aerial imagery. The tool also features the ability to mark key points that can be connected by skeletons, as well as the capacity to color pixels using brushes or superpixels. It supports reading and writing in PASCAL VOC XML and YOLO text formats, ensuring compatibility with various machine learning formats. In addition, users can export their work to CreateML for object detection and image classification, as well as to COCO, Labelme, YOLO, DOTA, and CSV formats. The tool also provides options to export indexed color mask images and grayscale mask images to suit different project needs. Users can easily adjust settings related to objects, attributes, hotkeys, and fast labeling for improved efficiency. The label dialog is customizable, allowing for a seamless combination with attributes, and one-click buttons expedite the process of selecting object names. With an impressive auto-suggest feature that considers over 5000 object names, searching for objects, attributes, and image names can be done in a gallery view for convenience. Automatic labeling capabilities are powered by Core ML models, and the tool includes automatic text recognition through OCR technology. Additionally, it has functionalities to convert videos into image frames and perform image augmentation. Language support extends to English, Chinese, Korean, and 11 other languages, making it accessible to a diverse user base while enhancing productivity across different regions. This comprehensive feature set emp

SOLVESPACE is an open-source parametric 3D CAD software released under the GPLv3 license, allowing users to design 3D components and create drawings through various operations such as extruding, revolving, or using Boolean methods like union, difference, and intersection. It also enables the modeling of 2D parts by allowing users to draw a single section and export it in formats like DXF, PDF, and SVG, while the 3D assembly feature aids in checking component fit. For those interested in 3D printing, parts can be exported in STL or other mesh formats compatible with the majority of 3D printers. Additionally, it supports the preparation of CAM data, enabling the export of 2D vector art tailored for waterjet machines or laser cutters, or generating STEP and STL files for integration with third-party CAM software for machining processes. The tool is particularly useful for mechanism design, utilizing a constraint solver to simulate both planar and spatial linkages, accommodating various joint types such as pin, ball, or slide joints. Instead of relying on traditional trigonometry and spreadsheets, users can work with live-dimensioned drawings to handle plane and solid geometry, and they can sketch sections utilizing a variety of shapes including lines, rectangles, datum lines, points, circles, arcs, and cubic Bezier segments, along with C2 interpolating splines and more intricate designs. This comprehensive approach encourages creativity and efficiency in the design process, making SOLVESPACE a valuable asset for engineers and designers alike.