arc_outline()

MAYAFLUX_API std::vector< Kakshya::LineVertex > MayaFlux::Kinesis::arc_outline	(	glm::vec2	center,
		float	radius,
		float	angle_start,
		float	angle_end,
		uint32_t	segments,
		glm::vec3	color = glm::vec3(1.F),
		float	thickness = 1.F
	)

Arc outline as a LINE_LIST (open curve, 2 * segments vertices).

angle_start and angle_end are in radians from +X, CCW. Minimum segments is 1.

Parameters

center	Arc center in NDC.
radius	Radius in NDC units.
angle_start	Start angle in radians.
angle_end	End angle in radians.
segments	Edge count over the arc span.
color	Uniform line color.
thickness	Line thickness.

Definition at line 245 of file Geometry2D.cpp.

{
    segments = std::max<uint32_t>(segments, 1U);
    const float step = (angle_end - angle_start) / static_cast<float>(segments);
 
    std::vector<Kakshya::LineVertex> out;
    out.reserve(static_cast<size_t>(segments) * 2);
 
    for (uint32_t i = 0; i < segments; ++i) {
        const float a0 = angle_start + static_cast<float>(i) * step;
        const float a1 = angle_start + static_cast<float>(i + 1) * step;
        out.push_back(lvert2(ring_point(center, radius, a0), color, thickness));
        out.push_back(lvert2(ring_point(center, radius, a1), color, thickness));
    }
 
    return out;
}