LabelLayouterHelper.cpp File Reference

#include <osmscoutmap/LabelLayouterHelper.h>

Namespaces
namespace	osmscout
	Original source: https://github.com/philipperemy/easy-encryption/blob/master/b64.h licensed under terms of MIT license.

Functions
size_t	osmscout::CountLabelWords (const std::string_view &text)
	Number of words of a text, i.e.
double	osmscout::GetLabelExtentBound (size_t characterCount, size_t wordCount, double fontSizePixel)
	Conservative upper bound [pixels] of half of the larger side of the rectangle a label can occupy after layout, derived from the number of characters and words of its text and from the pixel size of its font.
double	osmscout::GetLabelLayoutMarginPixel (const Projection &projection, const MapParameter &parameter)
	The margin [pixels] outside the visible view in which a label element can still take part in a frame: the label layout marks elements in a view that is enlarged by the layouter overlap, and it marks them with a padding around their rectangle.
double	osmscout::GetMaxLabelPaddingPixel (const Projection &projection, const MapParameter &parameter)
	The widest padding [pixels] the label layout adds around a label element when it marks the element in the overlap canvases of a frame.

Variables
constexpr double	osmscout::maxLabelAdvanceFactor =1.5
constexpr double	osmscout::maxLabelLineHeightFactor =1.5