ReadLinestyle

ReadLinestyle is a function or utility used in graphics and CAD software to load the definition of a line style from an external source into the program’s runtime context. The line style describes how a line is drawn, including dash patterns, widths, colors, and finish properties. By reading this information from a file, database, or resource bundle, ReadLinestyle enables consistent rendering of lines across a project.

Source and formats

ReadLinestyle can read from various sources, such as a local file, a database, or embedded resources. Typical attributes defined by the line style include name, dashPattern (an array of numbers indicating dashes and gaps), lineWidth, color (RGB or RGBA), capStyle and joinStyle, and optional texture or gradient. Some implementations support opacity, dash phase, or per-segment variations.

Return value and usage

The function returns a lineStyle object or record that can be applied to subsequent rendering calls. If the style cannot be found or parsed, it may return a null value or raise an error. Example usage might be: ReadLinestyle('styles/Dashed.lin'), which yields a line style with dashPattern [6,4], lineWidth 1.5, color black, and opacity 1.0, ready to be applied to polylines or other primitives in a scene.

Implementation notes

ReadLinestyle may support multiple sources, caching for performance, and error handling for missing or malformed definitions. Some environments may expose a variant named ReadLineStyle with a different API or naming convention, while others organize styles in a centralized repository.

See also

Line style; Dash pattern; Stroke; Vector graphics; CAD software.