inviwo::TextBoundingBox Struct Reference

struct for holding bounding box information for a specific text More...

#include <textboundingbox.h>

Public Member Functions
	TextBoundingBox (const size2_t &textExt, const ivec2 &glyphsOrigin, const size2_t &glyphsExt, int baselineOffset)
void	updateGlyphPenOffset (int baselineOffset)

Public Attributes
size2_t	textExtent {0}
ivec2	glyphsOrigin {0}
	relative origin of bottom-left most glyph
size2_t	glyphsExtent
	extent of bbox containing all glyphs extending to top right corner
ivec2	glyphPenOffset {0}
	pen offset to align first glyph perfectly on first baseline

Detailed Description

struct for holding bounding box information for a specific text

The textual bounding box for a string has its origin (0,0) at the bottom-left corner and is given by its extent. The bounding box enclosing all glyphs has its own origin relative to (0,0). The first line starts at (0,0) + textExtent.y - ascender (i.e. getBaseLineOffset()).

The glyph bounding box might be larger than the textual bounding box. It is guaranteed to enclose all glyphs including overhang, e.g. caused by italic glyphs or glyphs exceeding ascend and descend.

Member Data Documentation

glyphsExtent

size2_t inviwo::TextBoundingBox::glyphsExtent

Initial value:

{
        0}

extent of bbox containing all glyphs extending to top right corner

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The documentation for this struct was generated from the following file:

• textboundingbox.h