HPGL (Hewlett-Packard Graphics Language) is a vector-based plotting language developed by HP for controlling pen plotters and graphic devices. It uses ASCII text commands to define drawing instructions, including line movements, pen positioning, and graphic element creation. Primarily used in computer-aided design (CAD), engineering, and technical drawing applications, HPGL provides precise coordinate-based graphics rendering with support for complex geometric instructions.
High precision graphics rendering, platform-independent format, compact file size, direct hardware control, supports complex geometric instructions, widely supported by legacy plotting systems, enables accurate technical documentation and design representation.
Limited color support, outdated compared to modern vector formats, reduced compatibility with contemporary graphic systems, complex parsing requirements, minimal support for advanced graphical features like transparency or gradients.
HPGL is extensively used in technical and engineering domains, including architectural drafting, mechanical design, circuit board layout, geographic information systems (GIS), and scientific visualization. It remains prevalent in engineering workstations, CAD software, and legacy plotting systems. Manufacturing, engineering firms, and technical documentation departments frequently utilize HPGL for creating precise technical drawings and schematics.