From 62ae5379846fb9830737916cb1d5e864eb6dc144 Mon Sep 17 00:00:00 2001 From: Yuri Chornoivan Date: Sun, 10 Mar 2013 21:55:10 +0200 Subject: [PATCH] Add figures to illustrate the enhancement methods (courtesy of Thomas Freitag) --- doc/enhance-lowcontrast.png | Bin 0 -> 3753 bytes doc/enhance-shape.png | Bin 0 -> 4090 bytes doc/enhance-solid.png | Bin 0 -> 6491 bytes doc/enhance-thinline.png | Bin 0 -> 8225 bytes doc/index.docbook | 76 +++++++++++++++++++++++++++++++++++- doc/rating.png | Bin 744 -> 0 bytes 6 files changed, 75 insertions(+), 1 deletion(-) create mode 100644 doc/enhance-lowcontrast.png create mode 100644 doc/enhance-shape.png create mode 100644 doc/enhance-solid.png create mode 100644 doc/enhance-thinline.png delete mode 100644 doc/rating.png diff --git a/doc/enhance-lowcontrast.png b/doc/enhance-lowcontrast.png new file mode 100644 index 0000000000000000000000000000000000000000..da7d9e0c6f8bfd8d29c92cbdb4f268aba8a4d5c5 GIT binary patch literal 3753 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When the line in the original document is less than one pixel this two step implementation could cause problems. For those lines, the clipping path is filled with the filling color that depends on the thickness of the line part inside the clipping area. If the part of the line inside the clipping area gets very small the contrast between the shape and the background color can become too low for the line to be recognizable. The grids of such lines then looks very unpretty. + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Thin line (red), its clipping path (dashed line) and pixel boundaries (black solid lines) + Thin line shown at a low contrast + + + + To enhance the look of the thin lines &okular; implements two options. - The first option is Solid. With this option &okular; adjusts clipping path and line position so that clipping path and line are on the same pixel boundary, &ie; &okular; enlarges the thin lines to one pixel on the output device. This mode is similar to the Enhance thin lines in Adobe Reader. If this option is chosen, the thin lines are always enlarged. + The first option is Solid. With this option &okular; adjusts clipping path and line position so that clipping path and line are on the same pixel boundary, &ie; &okular; enlarges the thin lines to one pixel on the output device. This mode is similar to the Enhance thin lines in Adobe + Reader. If this option is chosen, the thin lines are always enlarged. + + + + + + + + + + + Thin line with Solid enhancement + + + Thin line with Solid enhancement + + + The second option is Shape. With this option the clipping path and line are adjusted to pixel boundary as well, but the line intensity is corrected according to its width. + + + + + + + + + + Thin line with Shape enhancement + + + Thin line with Shape enhancement + + + + The thin lines are not enhanced by default (option No). @@ -1552,6 +1625,7 @@ Add a 'Find Previous' entry + Configuring &okular; diff --git a/doc/rating.png b/doc/rating.png deleted file mode 100644 index 3630d8ff194e8fc8953bcb0d9dc75b85a33113bb..0000000000000000000000000000000000000000 GIT binary patch literal 0 HcmV?d00001 literal 744 zcmVP)@X1W@%1z^^1>U9w;i?(osTkg-1=E}c*qR8~nhDdK2F{cO(U1hxmJ!&W zA=;uP)t3^{j|9-hKDqeelR&^UG)V)Oq*Q zcK6nH_}O;&+IINccK6tJ_ttsz%WLnvRQAbk_Rntj({A_IZur@5_}Xsx*lzdLZuik{ z@yKQIzf0Bm`PWGI z%P{u05b&}R_qr1J#0vS%0Q%AZ`OpCP$N=@d0P(K^_qzc3%mDh@0Q=$q``-Zi(*X9! z0QIZ@_q_o5(E#+^0P^4f{Okbu#{l%F0N9oQ)uRCS#sD%W^8^3@06TP2PE!EJ%8~v3 zmKgc^8xQ8@6h+VG`1tA8RVVlOE&}K21Qhr77eV^^MBd}*?CtOF^6c&O@3QW(92uAdeb zkT~SLw|4&22W9=kb3g0%4(8D&O5#s(T`2 zyI*^Fe5yB^&tgE3yu7yBZ=G)M01eXjkI%3EpglZ9gKYGDBv&ZM6BQcNnqw`1?&MSt abC?3Rt0d}&F$kmp0000