normalised_points_tight_region()

MAYAFLUX_API Region MayaFlux::Kakshya::normalised_points_tight_region	(	std::span< const glm::vec2 >	points,
		uint32_t	pixel_w,
		uint32_t	pixel_h
	)

Compute the tight pixel-space Region enclosing a set of normalised points.

Iterates points to find the axis-aligned bounding box in normalised image space, then delegates to normalised_rect_to_region. Coordinate convention is identical: origin top-left, +Y downward, output inclusive pixel integers as { y0, x0 } / { y1, x1 }.

Returns a zero-area Region at { 0, 0 } / { 0, 0 } if points is empty.

Parameters

points	Normalised image-space points in [0, 1] x [0, 1].
pixel_w	Source image width in pixels.
pixel_h	Source image height in pixels.

Returns

Tight bounding Region in pixel integers.

Definition at line 392 of file CoordUtils.cpp.

{
    if (points.empty())
        return Region {};
 
    float min_x = points[0].x, max_x = points[0].x;
    float min_y = points[0].y, max_y = points[0].y;
 
    for (const auto& p : points.subspan(1)) {
        if (p.x < min_x)
            min_x = p.x;
        if (p.x > max_x)
            max_x = p.x;
        if (p.y < min_y)
            min_y = p.y;
        if (p.y > max_y)
            max_y = p.y;
    }
 
    return normalised_rect_to_region(
        min_x, min_y,
        max_x - min_x, max_y - min_y,
        pixel_w, pixel_h);
}

References normalised_rect_to_region(), and points.

Here is the call graph for this function: