automatic version update by autodist [release 1.11-1mamba;Wed Feb 20 2013]
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# potrace
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# potrace
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potrace is a utility for tracing a bitmap, which means, transforming a bitmap into a smooth, scalable image.
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The input is a portable bitmap (PBM), and the default output is an encapsulated PostScript file (EPS).
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A typical use is to create EPS files from scanned data, such as company or university logos, handwritten notes, etc.
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The resulting image is not "jaggy" like a bitmap, but smooth, and it can be scaled to any resolution.
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114
potrace-1.8-xfig.patch
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114
potrace-1.8-xfig.patch
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Index: ChangeLog
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===================================================================
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--- ChangeLog (revision 153)
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+++ ChangeLog (revision 154)
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@@ -1,5 +1,9 @@
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ChangeLog
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+ (2007/05/22) PS1 - xfig backend: added depth to opaque components
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+ to avoid them floating to the background. Suggested by Rafael
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+ Laboissiere.
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+
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v1.8 2007/04/09
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(2007/04/08) PS1 - portability: use 'test' instead of '[' in shell
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scripts.
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Index: src/backend_xfig.c
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===================================================================
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--- src/backend_xfig.c (revision 153)
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+++ src/backend_xfig.c (revision 154)
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@@ -124,13 +124,13 @@
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return n;
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}
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-/* do one path. First should be 1 on the very first path, else 0. */
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-static int xfig_path(FILE *fout, potrace_curve_t *curve, trans_t t, int sign) {
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+/* do one path. */
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+static void xfig_path(FILE *fout, potrace_curve_t *curve, trans_t t, int sign, int depth) {
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int i;
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dpoint_t *c;
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int m = curve->n;
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- fprintf(fout, "3 1 0 0 0 %d 50 0 20 0.000 0 0 0 %d\n", sign=='+' ? 32 : 33, npoints(curve, m));
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+ fprintf(fout, "3 1 0 0 0 %d %d 0 20 0.000 0 0 0 %d\n", sign=='+' ? 32 : 33, depth, npoints(curve, m));
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for (i=0; i<m; i++) {
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c = curve->c[i];
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@@ -154,15 +154,43 @@
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break;
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}
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}
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- return 0;
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}
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+/* render a whole tree */
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+static void xfig_write_paths(FILE *fout, potrace_path_t *plist, trans_t t, int depth) {
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+ potrace_path_t *p, *q;
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+
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+ for (p=plist; p; p=p->sibling) {
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+ xfig_path(fout, &p->curve, t, p->sign, depth);
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+ for (q=p->childlist; q; q=q->sibling) {
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+ xfig_path(fout, &q->curve, t, q->sign, depth >= 1 ? depth-1 : 0);
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+ }
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+ for (q=p->childlist; q; q=q->sibling) {
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+ xfig_write_paths(fout, q->childlist, t, depth >= 2 ? depth-2 : 0);
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+ }
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+ }
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+}
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+
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+/* calculate the depth of a tree. Call with d=0. */
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+static int xfig_get_depth(potrace_path_t *plist) {
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+ potrace_path_t *p;
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+ int max =0;
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+ int d;
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+
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+ for (p=plist; p; p=p->sibling) {
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+ d = xfig_get_depth(p->childlist);
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+ if (d > max) {
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+ max = d;
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+ }
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+ }
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+ return max + 1;
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+}
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+
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/* ---------------------------------------------------------------------- */
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/* Backend. */
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/* public interface for XFIG */
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int page_xfig(FILE *fout, potrace_path_t *plist, imginfo_t *imginfo) {
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- potrace_path_t *p;
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trans_t t;
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double si, co;
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double origx = imginfo->trans.orig[0] + imginfo->lmar;
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@@ -174,6 +202,7 @@
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pageformat_t *f;
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int i;
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int x0, y0, x1, y1; /* in xfig's coordinates */
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+ int depth;
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si = sin(info.angle/180*M_PI);
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co = cos(info.angle/180*M_PI);
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@@ -220,11 +249,21 @@
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fprintf(fout, "0 33 #%06x\n", info.fillcolor);
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fprintf(fout, "6 %d %d %d %d\n", x0-75, y1-35, x1+75, y0+35); /* bounding box */
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+ /* determine depth of the tree */
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+ depth = xfig_get_depth(plist);
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+
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+ /* figure out appropriate xfig starting depth. Note: xfig only has 1000 depths available */
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+ if (depth <= 40) {
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+ depth = 50;
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+ } else if (depth < 990) {
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+ depth += 10;
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+ } else {
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+ depth = 999;
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+ }
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+
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/* write paths. Note: can never use "opticurve" with this backend -
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it just does not approximate Bezier curves closely enough. */
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- list_forall (p, plist) {
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- xfig_path(fout, &p->curve, t, p->sign);
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- }
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+ xfig_write_paths(fout, plist, t, depth);
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fprintf(fout, "-6\n"); /* end bounding box */
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70
potrace.spec
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70
potrace.spec
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Name: potrace
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Version: 1.11
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Release: 1mamba
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Summary: Transforms bitmaps into vector graphics
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Group: Graphical Desktop/Applications/Graphics
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Vendor: openmamba
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Distribution: openmamba
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Packager: Aleph0 <aleph0@openmamba.org>
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URL: http://potrace.sourceforge.net/
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Source: http://potrace.sourceforge.net/download/%{name}-%{version}.tar.gz
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Patch: %{name}-1.8-xfig.patch
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License: GPL
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## AUTOBUILDREQ-BEGIN
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BuildRequires: glibc-devel
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BuildRequires: libz-devel
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## AUTOBUILDREQ-END
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BuildRoot: %{_tmppath}/%{name}-%{version}-root
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%description
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potrace is a utility for tracing a bitmap, which means, transforming a bitmap into a smooth, scalable image.
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The input is a portable bitmap (PBM), and the default output is an encapsulated PostScript file (EPS).
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A typical use is to create EPS files from scanned data, such as company or university logos, handwritten notes, etc.
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The resulting image is not "jaggy" like a bitmap, but smooth, and it can be scaled to any resolution.
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%prep
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%setup -q
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#%patch -p0
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%build
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%configure
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%make
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%install
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[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
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%makeinstall
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%clean
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[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
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%files
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%defattr(-,root,root)
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%{_bindir}//mkbitmap
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%{_bindir}/potrace
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%{_mandir}/man1/mkbitmap.*
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%{_mandir}/man1/potrace.*
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%dir %{_docdir}/potrace
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%{_docdir}/potrace/placement.pdf
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%doc AUTHORS COPYING ChangeLog NEWS README
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%changelog
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* Wed Feb 20 2013 Automatic Build System <autodist@mambasoft.it> 1.11-1mamba
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- automatic version update by autodist
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* Tue Aug 30 2011 Automatic Build System <autodist@mambasoft.it> 1.10-1mamba
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- automatic version update by autodist
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* Fri Jan 28 2011 Automatic Build System <autodist@mambasoft.it> 1.9-1mamba
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- update to 1.9
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* Thu Jan 27 2011 Automatic Build System <autodist@mambasoft.it> 1.9.win64-1mamba
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- automatic update by autodist
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* Mon Nov 26 2007 Aleph0 <aleph0@openmamba.org> 1.8-1mamba
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- update to 1.8
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* Tue May 17 2005 Alessandro Ramazzina <alessandro.ramazzina@qilinux.it> 1.7-1qilnx
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- new version
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* Fri Sep 17 2004 Matteo Bernasconi <voyagernm@virgilio.it> 1.5-1qilnx
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- first build
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