> According the the manual, there is an implicit FT_CURVE_TAG_ON
> between the two FT_CURVE_TAG_CONIC's by a simple average and the
> outline code looks decent so far, but without an ending
> FT_CURVE_TAG_ON, I'm not sure what to do with the last
> FT_CURVE_TAG_CONIC in the outline. How should I handle this?
There are three possibilities around the start of the contour how
conic points can be located. Let's assume that we have P points in an
outline. Uninteresting points are marked with `x' (these points could
be conic also).
. Point 0 and point 1 are conic.
P-1 P 0 1
----x----x----o----o----
. Point P and point 0 are conic.
P-1 P 0 1
----x----o----o----x----
. Point P-1 and point P are conic.
P-1 P 0 1
----o----o----x----x----
In all cases, there is an implicit on point between the two conic
points. Note that the sequence `on - conic -on' is invalid.
If you use FT_Outline_Decompose, FreeType handles this automatically
for you.
Does this answer your question?
Werner
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