#Fontforge xuid software
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution.
#Fontforge xuid code
* Copyright (C) 2000-2003 by George Williams */ /* * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. The array is ordered the same way the SplineFont’s array is ordered, and the (Note: the map array may map several encodings to one glyph, theīackmap will only indicate one of those.)Ī BDFFont is always associated with a (possiblyĮmpty) SplineFont and its EncMap, it consists of an array ofĪ pointer to the SplineChar with which it is It is indexed by a glyph’s position in the splinefont and provides an encodingįor that glyph. The backmap provides the reverse mapping, The map is indexed by theĬharacter’s encoding and provides the position (in the associated splinefont’s Structure controls what glyph goes where and also contains a pointer to anĮncoding structure which provides a name for the encoding. The control points on the start and end SplinePoints have the same location.Ī font’s encoding is stored in a separate data structure called an EncMap. Quadratic there is really only one control point, ff uses the convention that Order2 (truetype quadratic format) or order3 (postscript cubic format). A spline contains a bit indicating whether it is The two control points that are meaningful to that spline are coincident with A Spline contains pointers to two SplinePoints (a start andĪn end point) it also contains the parameters of the Bézier curve that those two SplinePoints may connect to two splines, a previous SplineĪnd a next Spline. Two control points associated with that point. Indicates a closed path, or a degenerate path with only one point on it.Ī SplinePoint contains an x,y location of the point, and the locations of the The start point and the end point may be the same, this either Bitmap images may also be included.Įvery SplineChar has a name associated with it, a unicode encoding and a itsĪ SplineSet consists of a start point and an end point, and whatever splinesĬonnect them. In multilayered mode there can be many foreground layers which can be stroked orįilled.
!!!! I do not have a way of undoing hint operations !!!! The width can be negative.)Ī set of hints. Location and a width (indicating the stem. It will be seen in allĪ hint layer, whose format is completely different from anything else andĬonsists of horizontal and vertical hints, which in turn are just a starting Actually you can putĪnything there but those are the obviously useful things.
#Fontforge xuid series
SplineChars, each containing four layers,Ī foreground layer which contains all the interesting stuff that gets put intoĪ series of references to other characters (calledĪ background layer (which is used to allow people to trace images of characters)Ī grid layer, which is shared by all the characters in a font and in which youĬan put lines to indicate the Cap Height, X Height, etc. (possibly with holes in it) of characters. Some similarities between the two data structures, each is basically an array Or truetype font) and a BDFFont (bitmap font, essentially a bdf file). This describes two different types of fonts, a SplineFont (which is a postscript While much of what is described remains relevant, it has not been kept up
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