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vectorcraft/docs
dotCooCoo 1c973dc141 SVG import: absolutely placed characters in right-to-left text land on their x
An absolutely placed character starts its own text chunk, anchored on its
own x (SVG 1.1 text chunks). In a right-to-left line the import kerned the
character before each placed one as if kerning moved the placed character
right, but a right-to-left glyph takes its kerning at its left, so the
correction moved the wrong glyph. In <text direction="rtl" font-size="20">,
<tspan x="100 160" y="80 80">אב</tspan> on a second line put the right
edge of א at 393.48 instead of 100.

The placement now works in drawing order: each kerning is a cut after its
character (before it when it runs right to left), each gap between two
placed neighbors takes one cut, and the line's left edge is measured again
every round. Corrections are divided by the character's horizontal scale,
so text stretched with lengthAdjust="spacingAndGlyphs" lands on its x too.

A left-to-right character drawn between two placed right-to-left ones has
no kerning slot before the next one, which then keeps its place in the
line; the import warns about it.
2026-11-14 02:41:16 -08:00
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