1 This directory provides bitmaps with the same size and naming
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2 conventions as those distributed till xboard-3.**
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3 These bitmaps are distributed under the GNU GENERAL PUBLIC LICENSE
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6 The bitmaps contained herein were converted from my MetaFont
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7 version of chess font. These are designed very well to deliver
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8 good rastered images on low resolution devices. The general
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9 shape of these fonts are designed after very old typefaces
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10 used in printing chess books. They are not as fancy as the
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11 currently used bitmaps of xboard, but I like them in their
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12 'san serif'-ness - may be others too.
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13 The MetaFont source of this font may be obtained from me
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14 under the GNU GENERAL PUBLIC LICENSE.
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15 To convert the pk-Files to bitmaps I used the conversion tool
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16 mftobdf to generate X11-bdf - fonts, and then used a small C
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17 program, to write the xbm-files.
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19 5.Feb.1994 Elmar Bartel
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20 bartel@informatik.tu-muenchen.de
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22 [Elmar supplied only 80, 64, and 40 pixel bitmaps]
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26 The 21-pixel bitmaps are also based on Elmar's font, but I hand-tuned
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27 them quite a bit. I converted them from the Metafont gf file by
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28 running gftype and applying a C program of my own to the
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29 human-readable output.
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31 icon_white and icon_black were produced in the same way.
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33 21 Nov 1995 Tim Mann
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37 The 33, 45, 49, 54, and 58 pixel bitmaps are also based on Elmar's font.
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38 They were converted using dopkbm.sh, followed by a manual pass with the
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39 X bitmap editor to adjust the size (adding blank borders as needed) and
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40 to hand-tune the pixels in a few cases where that was badly needed.
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41 Here is some data that may be useful in later conversions:
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43 Character numbers in fselch fonts:
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45 Piece Open Solid Open/bg Solid/bg
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55 fselch*.mf blank sq queen used for
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56 ---------- -------- ----- --------
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60 11 46x46 43x41 45x45
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61 12 50x50 47x43 49x49
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62 13 54x54 50x47 54x54
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63 14 58x58 56x50 58x58
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65 21 87x87 76x81 87x87
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67 23 95x95 82x89 95x95
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68 25 104x104 91x99 none
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69 26 108x108 94x103 108x108
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70 28 116x116 99x107 116x116
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71 30 125x125 110x118 none
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72 31 129x129 113x122 129x129
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73 32 133x133 116x124 none
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76 In each case, fselch*.mf was formatted for 300 dpi. On Linux with the
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77 Red Hat tetex-0.4pl8-9 package, this required mag=0.5. Example:
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80 \mode=localfont; mag=0.5; input fselch8.mf
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81 gftopk fselch8.300gf
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83 On Red Hat with tetex-0.9-6, mag=1.0 was needed instead.
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86 \mode=localfont; mag=1.0; input fselch26.mf
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87 gftopk fselch26.300gf
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90 15 Feb 1998 Tim Mann
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91 25 Feb 1999 Tim Mann
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95 I added a large number of bitmaps for non-orthodox pieces, mainly in
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96 size middling and bulky (and to a lesser extent in petite). A few pieces
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97 (Archbishop, Chancellor and Lance) are available in all sizes from petite to bulky.
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98 The bitmaps were created as WinBoard .bmp monochrome bitmaps with MS Paint, and
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99 converted to .bm C-source files semi-automatically, to be used as built-ins for xboard.
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101 4 Aug 2008 H.G. Muller