| 摘要 |
A method for drawing a line having a gradient opacity across a width of the line includes receiving a path for rendering the line in a user interface, and rendering, by a computing device, a plurality of composite lines on a user interface along the path to form the line. The composite lines of the plurality of composite lines have different widths have an opacity, and are multilayered along the path. The method further includes centering, by the computing device, longitudinal-centers of the plurality of composite lines with a center of the path. The opacity of the plurality of composite lines is additive across portions of the width of the line to form the gradient opacity. |
