boost::gil::midpoint_ellipse_rasterizer
Performs ellipse rasterization using midpoint algorithm. Initially, program considers origin as center of ellipse and obtains first quadrant trajectory points. After that, it shifts origin to provided co‐ordinates of center and then draws the curve.
Synopsis
Declared in <boost/gil/extension/rasterization/ellipse.hpp>
struct midpoint_ellipse_rasterizer;Member Functions
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Description |
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Creates a midpoint ellipse rasterizer |
Fills pixels returned by function 'obtain_trajectory' as well as pixels obtained from their reflection along major axis, minor axis and line passing through center with slope ‐1 using colours provided by user. |
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Returns a vector containing co‐ordinates of first quadrant points which lie on rasterizer trajectory of the ellipse. |
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Calls the function 'obtain_trajectory' and then passes obtained trajectory points in the function 'draw_curve' for drawing the desired ellipse. |