├── Fontra ├── fontra_bezier_interpolations.py ├── nli_avar2.fontra │ ├── font-data.json │ ├── glyph-info.csv │ ├── glyphs │ │ ├── A^1.json │ │ ├── B^1.json │ │ ├── C^1.json │ │ └── D^1.json │ └── kerning.csv ├── requirements.txt └── setupvenv.sh ├── LICENSE ├── README.md └── RoboFont ├── BezierInterpolations.py └── BezierInterpolations.ufo ├── fontinfo.plist ├── glyphs.background ├── contents.plist └── layerinfo.plist ├── glyphs.cubictarget1 ├── A_.glif ├── contents.plist └── layerinfo.plist ├── glyphs.cubictarget2 ├── A_.glif ├── contents.plist └── layerinfo.plist ├── glyphs.end ├── A_.glif ├── contents.plist └── layerinfo.plist ├── glyphs.quadratictarget ├── A_.glif ├── contents.plist └── layerinfo.plist ├── glyphs ├── A_.glif ├── contents.plist └── layerinfo.plist ├── layercontents.plist ├── lib.plist └── metainfo.plist /Fontra/fontra_bezier_interpolations.py: -------------------------------------------------------------------------------- 1 | import argparse 2 | import asyncio 3 | 4 | from fontra.backends.fontra import FontraBackend 5 | 6 | 7 | async def main(): 8 | parser = argparse.ArgumentParser() 9 | parser.add_argument("--glyphName") 10 | parser.add_argument("--t") 11 | parser.add_argument("--defaultSource") 12 | parser.add_argument("--targetSource") 13 | parser.add_argument("--endSource") 14 | parser.add_argument("--offSource1") 15 | parser.add_argument("--offSource2") 16 | parser.add_argument("fontpath") 17 | 18 | args = parser.parse_args() 19 | 20 | pathToDesignspaceFile = args.fontpath 21 | 22 | font = FontraBackend.fromPath(pathToDesignspaceFile) 23 | glyphMap = await font.getGlyphMap() 24 | 25 | glyphName = args.glyphName 26 | glyph = await font.getGlyph(glyphName) 27 | 28 | startSource = args.defaultSource 29 | targetSource = args.targetSource 30 | endSource = args.endSource 31 | offSource = args.offSource1 32 | offSource2 = args.offSource2 33 | 34 | t = float(args.t) 35 | k = 1 - t 36 | 37 | off_coords = [] 38 | 39 | gstart_coords = glyph.layers[startSource].glyph.path.coordinates 40 | gsteps_coords = glyph.layers[targetSource].glyph.path.coordinates 41 | gends_coords = glyph.layers[endSource].glyph.path.coordinates 42 | 43 | for start, step, end in zip(gstart_coords, gsteps_coords, gends_coords): 44 | p = (step - k * k * start - t * t * end) / (t * k * 2) 45 | off_coords.append(p) 46 | 47 | glyph.layers[offSource].glyph.path.coordinates = off_coords 48 | glyph.layers[offSource2].glyph.path.coordinates = off_coords 49 | 50 | print(f"- Save {glyphName}") 51 | error = await font.putGlyph(glyphName, glyph, glyphMap.get(glyphName, [])) 52 | if error: 53 | print("!!!", glyphName, error) 54 | 55 | 56 | if __name__ == "__main__": 57 | asyncio.run(main()) 58 | -------------------------------------------------------------------------------- /Fontra/nli_avar2.fontra/font-data.json: -------------------------------------------------------------------------------- 1 | { 2 | "axes": { 3 | "axes": [ 4 | { 5 | "name": "Bend", 6 | "label": "Bend", 7 | "tag": "BEND", 8 | "minValue": 0, 9 | "defaultValue": 0, 10 | "maxValue": 100 11 | }, 12 | { 13 | "name": "Bend-2", 14 | "label": "Bend-2", 15 | "tag": "BND2", 16 | "minValue": 0, 17 | "defaultValue": 0, 18 | "maxValue": 100, 19 | "hidden": true 20 | } 21 | ], 22 | "mappings": [ 23 | { 24 | "description": null, 25 | "groupDescription": null, 26 | "inputLocation": { 27 | "Bend": 100 28 | }, 29 | "outputLocation": { 30 | "Bend-2": 100 31 | } 32 | } 33 | ] 34 | }, 35 | "sources": { 36 | "::fontra001-c1bc0cf3": { 37 | "name": "Bend-middle-1", 38 | "location": { 39 | "Bend": 100, 40 | "Bend-2": 0 41 | }, 42 | "lineMetricsHorizontalLayout": { 43 | "ascender": { 44 | "value": 750, 45 | "zone": 16 46 | }, 47 | "capHeight": { 48 | "value": 750, 49 | "zone": 16 50 | }, 51 | "xHeight": { 52 | "value": 500, 53 | "zone": 16 54 | }, 55 | "descender": { 56 | "value": -250, 57 | "zone": -16 58 | }, 59 | "baseline": { 60 | "value": 0, 61 | "zone": -16 62 | } 63 | } 64 | }, 65 | "::fontra002-79e386be": { 66 | "name": "Bend-middle-2", 67 | "location": { 68 | "Bend": 0, 69 | "Bend-2": 100 70 | }, 71 | "lineMetricsHorizontalLayout": { 72 | "ascender": { 73 | "value": 750, 74 | "zone": 16 75 | }, 76 | "capHeight": { 77 | "value": 750, 78 | "zone": 16 79 | }, 80 | "xHeight": { 81 | "value": 500, 82 | "zone": 16 83 | }, 84 | "descender": { 85 | "value": -250, 86 | "zone": -16 87 | }, 88 | "baseline": { 89 | "value": 0, 90 | "zone": -16 91 | } 92 | } 93 | }, 94 | "::fontra003-c28ff2e7": { 95 | "name": "Bend-end", 96 | "location": { 97 | "Bend": 100, 98 | "Bend-2": 100 99 | }, 100 | "lineMetricsHorizontalLayout": { 101 | "ascender": { 102 | "value": 750, 103 | "zone": 16 104 | }, 105 | "capHeight": { 106 | "value": 750, 107 | "zone": 16 108 | }, 109 | "xHeight": { 110 | "value": 500, 111 | "zone": 16 112 | }, 113 | "descender": { 114 | "value": -250, 115 | "zone": -16 116 | }, 117 | "baseline": { 118 | "value": 0, 119 | "zone": -16 120 | } 121 | } 122 | }, 123 | "::fontra004-68ee1461": { 124 | "name": "step", 125 | "isSparse": true, 126 | "location": { 127 | "Bend": 20.691714, 128 | "Bend-2": 0 129 | } 130 | }, 131 | "::fontra005-dde2f9b1": { 132 | "name": "step#1", 133 | "isSparse": true, 134 | "location": { 135 | "Bend": 18.913386, 136 | "Bend-2": 0 137 | } 138 | }, 139 | "de23a2d5": { 140 | "name": "Regular", 141 | "location": { 142 | "Bend": 0, 143 | "Bend-2": 0 144 | }, 145 | "lineMetricsHorizontalLayout": { 146 | "ascender": { 147 | "value": 750, 148 | "zone": 16 149 | }, 150 | "capHeight": { 151 | "value": 750, 152 | "zone": 16 153 | }, 154 | "xHeight": { 155 | "value": 500, 156 | "zone": 16 157 | }, 158 | "descender": { 159 | "value": -250, 160 | "zone": -16 161 | }, 162 | "baseline": { 163 | "value": 0, 164 | "zone": -16 165 | } 166 | } 167 | } 168 | }, 169 | "customData": { 170 | "fontra.projectGlyphSets": [ 171 | { 172 | "commentChars": "#", 173 | "dataFormat": "glyph-names", 174 | "name": "GF Latin Kernel", 175 | "url": "https://raw.githubusercontent.com/googlefonts/glyphsets/main/data/results/txt/nice-names/GF_Latin_Kernel.txt" 176 | } 177 | ] 178 | } 179 | } 180 | -------------------------------------------------------------------------------- /Fontra/nli_avar2.fontra/glyph-info.csv: -------------------------------------------------------------------------------- 1 | glyph name;code points 2 | A;U+0041 3 | B;U+0042 4 | C;U+0043 5 | D;U+0044 6 | -------------------------------------------------------------------------------- /Fontra/nli_avar2.fontra/glyphs/A^1.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "A", 3 | "sources": [ 4 | { 5 | "name": "", 6 | "layerName": "", 7 | "location": { 8 | "Bend": 0, 9 | "Bend-2": 0 10 | } 11 | }, 12 | { 13 | "name": "Bend-middle-1", 14 | "layerName": "Bend-middle-1", 15 | "location": { 16 | "Bend": 100, 17 | "Bend-2": 0 18 | } 19 | }, 20 | { 21 | "name": "Bend-middle-2", 22 | "layerName": "Bend-middle-2", 23 | "location": { 24 | "Bend": 0, 25 | "Bend-2": 100 26 | } 27 | }, 28 | { 29 | "name": "Bend-end", 30 | "layerName": "Bend-end", 31 | "location": { 32 | "Bend": 100, 33 | "Bend-2": 100 34 | } 35 | } 36 | ], 37 | "layers": { 38 | "": { 39 | "glyph": { 40 | "path": { 41 | "contours": [ 42 | { 43 | "points": [ 44 | { 45 | "x": 0, 46 | "y": 500 47 | }, 48 | { 49 | "x": 0, 50 | "y": 0 51 | }, 52 | { 53 | "x": 500, 54 | "y": 0 55 | }, 56 | { 57 | "x": 500, 58 | "y": 500 59 | } 60 | ], 61 | "isClosed": true 62 | }, 63 | { 64 | "points": [ 65 | { 66 | "x": 50, 67 | "y": 150 68 | }, 69 | { 70 | "x": 150, 71 | "y": 150 72 | }, 73 | { 74 | "x": 150, 75 | "y": 50 76 | }, 77 | { 78 | "x": 50, 79 | "y": 50 80 | } 81 | ], 82 | "isClosed": true 83 | } 84 | ] 85 | }, 86 | "xAdvance": 500 87 | } 88 | }, 89 | "Bend-end": { 90 | "glyph": { 91 | "path": { 92 | "contours": [ 93 | { 94 | "points": [ 95 | { 96 | "x": 0, 97 | "y": 500 98 | }, 99 | { 100 | "x": 0, 101 | "y": 0 102 | }, 103 | { 104 | "x": 500, 105 | "y": 0 106 | }, 107 | { 108 | "x": 500, 109 | "y": 500 110 | } 111 | ], 112 | "isClosed": true 113 | }, 114 | { 115 | "points": [ 116 | { 117 | "x": 350, 118 | "y": 450 119 | }, 120 | { 121 | "x": 450, 122 | "y": 450 123 | }, 124 | { 125 | "x": 450, 126 | "y": 350 127 | }, 128 | { 129 | "x": 350, 130 | "y": 350 131 | } 132 | ], 133 | "isClosed": true 134 | } 135 | ] 136 | }, 137 | "xAdvance": 500 138 | } 139 | }, 140 | "Bend-middle-1": { 141 | "glyph": { 142 | "path": { 143 | "contours": [ 144 | { 145 | "points": [ 146 | { 147 | "x": 0, 148 | "y": 500 149 | }, 150 | { 151 | "x": 0, 152 | "y": 0 153 | }, 154 | { 155 | "x": 500, 156 | "y": 0 157 | }, 158 | { 159 | "x": 500, 160 | "y": 500 161 | } 162 | ], 163 | "isClosed": true 164 | }, 165 | { 166 | "points": [ 167 | { 168 | "x": 50, 169 | "y": 450 170 | }, 171 | { 172 | "x": 150, 173 | "y": 450 174 | }, 175 | { 176 | "x": 150, 177 | "y": 350 178 | }, 179 | { 180 | "x": 50, 181 | "y": 350 182 | } 183 | ], 184 | "isClosed": true 185 | } 186 | ] 187 | }, 188 | "xAdvance": 500 189 | } 190 | }, 191 | "Bend-middle-2": { 192 | "glyph": { 193 | "path": { 194 | "contours": [ 195 | { 196 | "points": [ 197 | { 198 | "x": 0, 199 | "y": 500 200 | }, 201 | { 202 | "x": 0, 203 | "y": 0 204 | }, 205 | { 206 | "x": 500, 207 | "y": 0 208 | }, 209 | { 210 | "x": 500, 211 | "y": 500 212 | } 213 | ], 214 | "isClosed": true 215 | }, 216 | { 217 | "points": [ 218 | { 219 | "x": 50, 220 | "y": 450 221 | }, 222 | { 223 | "x": 150, 224 | "y": 450 225 | }, 226 | { 227 | "x": 150, 228 | "y": 350 229 | }, 230 | { 231 | "x": 50, 232 | "y": 350 233 | } 234 | ], 235 | "isClosed": true 236 | } 237 | ] 238 | }, 239 | "xAdvance": 500 240 | } 241 | } 242 | } 243 | } 244 | -------------------------------------------------------------------------------- /Fontra/nli_avar2.fontra/glyphs/B^1.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "B", 3 | "sources": [ 4 | { 5 | "name": "default", 6 | "layerName": "default", 7 | "location": { 8 | "Bend": 0, 9 | "Bend-2": 0 10 | } 11 | }, 12 | { 13 | "name": "Bend-middle-1", 14 | "layerName": "Bend-middle-1", 15 | "location": { 16 | "Bend": 100, 17 | "Bend-2": 0 18 | } 19 | }, 20 | { 21 | "name": "Bend-middle-2", 22 | "layerName": "Bend-middle-2", 23 | "location": { 24 | "Bend": 0, 25 | "Bend-2": 100 26 | } 27 | }, 28 | { 29 | "name": "Bend-end", 30 | "layerName": "Bend-end", 31 | "location": { 32 | "Bend": 100, 33 | "Bend-2": 100 34 | } 35 | }, 36 | { 37 | "name": "step", 38 | "layerName": "step", 39 | "location": { 40 | "Bend": 20.691714, 41 | "Bend-2": 0 42 | }, 43 | "inactive": true 44 | } 45 | ], 46 | "layers": { 47 | "Bend-end": { 48 | "glyph": { 49 | "path": { 50 | "contours": [ 51 | { 52 | "points": [ 53 | { 54 | "x": 162, 55 | "y": 159 56 | }, 57 | { 58 | "x": 341, 59 | "y": 159 60 | }, 61 | { 62 | "x": 341, 63 | "y": 338 64 | }, 65 | { 66 | "x": 162, 67 | "y": 338 68 | } 69 | ], 70 | "isClosed": true 71 | } 72 | ] 73 | }, 74 | "xAdvance": 500 75 | } 76 | }, 77 | "Bend-middle-1": { 78 | "glyph": { 79 | "path": { 80 | "contours": [ 81 | { 82 | "points": [ 83 | { 84 | "x": 88, 85 | "y": 250 86 | }, 87 | { 88 | "x": 253, 89 | "y": 85 90 | }, 91 | { 92 | "x": 415, 93 | "y": 250 94 | }, 95 | { 96 | "x": 253, 97 | "y": 412 98 | } 99 | ], 100 | "isClosed": true 101 | } 102 | ] 103 | }, 104 | "xAdvance": 500 105 | } 106 | }, 107 | "Bend-middle-2": { 108 | "glyph": { 109 | "path": { 110 | "contours": [ 111 | { 112 | "points": [ 113 | { 114 | "x": 88, 115 | "y": 250 116 | }, 117 | { 118 | "x": 253, 119 | "y": 85 120 | }, 121 | { 122 | "x": 415, 123 | "y": 250 124 | }, 125 | { 126 | "x": 253, 127 | "y": 412 128 | } 129 | ], 130 | "isClosed": true 131 | } 132 | ] 133 | }, 134 | "xAdvance": 500 135 | } 136 | }, 137 | "default": { 138 | "glyph": { 139 | "path": { 140 | "contours": [ 141 | { 142 | "points": [ 143 | { 144 | "x": 162, 145 | "y": 338 146 | }, 147 | { 148 | "x": 162, 149 | "y": 159 150 | }, 151 | { 152 | "x": 341, 153 | "y": 159 154 | }, 155 | { 156 | "x": 341, 157 | "y": 338 158 | } 159 | ], 160 | "isClosed": true 161 | } 162 | ] 163 | }, 164 | "xAdvance": 500 165 | } 166 | }, 167 | "step": { 168 | "glyph": { 169 | "path": { 170 | "contours": [ 171 | { 172 | "points": [ 173 | { 174 | "x": 125, 175 | "y": 249 176 | }, 177 | { 178 | "x": 252, 179 | "y": 122 180 | }, 181 | { 182 | "x": 378, 183 | "y": 249 184 | }, 185 | { 186 | "x": 252, 187 | "y": 375 188 | } 189 | ], 190 | "isClosed": true 191 | } 192 | ] 193 | }, 194 | "xAdvance": 500 195 | } 196 | } 197 | } 198 | } 199 | -------------------------------------------------------------------------------- /Fontra/nli_avar2.fontra/glyphs/C^1.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "C", 3 | "sources": [ 4 | { 5 | "name": "default", 6 | "layerName": "default", 7 | "location": { 8 | "Bend": 0, 9 | "Bend-2": 0 10 | } 11 | }, 12 | { 13 | "name": "Bend-middle-1", 14 | "layerName": "Bend-middle-1", 15 | "location": { 16 | "Bend": 100, 17 | "Bend-2": 0 18 | } 19 | }, 20 | { 21 | "name": "Bend-middle-2", 22 | "layerName": "Bend-middle-2", 23 | "location": { 24 | "Bend": 0, 25 | "Bend-2": 100 26 | } 27 | }, 28 | { 29 | "name": "Bend-end", 30 | "layerName": "Bend-end", 31 | "location": { 32 | "Bend": 100, 33 | "Bend-2": 100 34 | } 35 | }, 36 | { 37 | "name": "step", 38 | "layerName": "step", 39 | "location": { 40 | "Bend": 20.691714, 41 | "Bend-2": 0 42 | }, 43 | "inactive": true 44 | } 45 | ], 46 | "layers": { 47 | "Bend-end": { 48 | "glyph": { 49 | "path": { 50 | "contours": [ 51 | { 52 | "points": [ 53 | { 54 | "x": 409, 55 | "y": 354 56 | }, 57 | { 58 | "x": 55, 59 | "y": 0 60 | }, 61 | { 62 | "x": 146, 63 | "y": -91 64 | }, 65 | { 66 | "x": 500, 67 | "y": 262 68 | } 69 | ], 70 | "isClosed": true 71 | } 72 | ] 73 | }, 74 | "xAdvance": 500 75 | } 76 | }, 77 | "Bend-middle-1": { 78 | "glyph": { 79 | "path": { 80 | "contours": [ 81 | { 82 | "points": [ 83 | { 84 | 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| { 27 | "name": "end", 28 | "layerName": "end", 29 | "location": { 30 | "Bend": 100, 31 | "Bend-2": 100 32 | } 33 | }, 34 | { 35 | "name": "target", 36 | "layerName": "target", 37 | "location": { 38 | "Bend": 50, 39 | "Bend-2": 50 40 | }, 41 | "inactive": true 42 | } 43 | ], 44 | "layers": { 45 | "default": { 46 | "glyph": { 47 | "path": { 48 | "contours": [ 49 | { 50 | "points": [ 51 | { 52 | "x": 129, 53 | "y": 1 54 | }, 55 | { 56 | "x": 129, 57 | "y": -39, 58 | "type": "cubic" 59 | }, 60 | { 61 | "x": 247, 62 | "y": -39, 63 | "type": "cubic" 64 | }, 65 | { 66 | "x": 247, 67 | "y": 1 68 | }, 69 | { 70 | "x": 247, 71 | "y": 21, 72 | "type": "cubic" 73 | }, 74 | { 75 | "x": 247, 76 | "y": 40, 77 | "type": "cubic" 78 | }, 79 | { 80 | "x": 247, 81 | "y": 60 82 | }, 83 | { 84 | "x": 247, 85 | "y": 100, 86 | "type": "cubic" 87 | }, 88 | { 89 | "x": 129, 90 | "y": 100, 91 | "type": "cubic" 92 | }, 93 | { 94 | "x": 129, 95 | "y": 60 96 | }, 97 | { 98 | "x": 129, 99 | "y": 40, 100 | "type": 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175 | "type": "cubic" 176 | } 177 | ], 178 | "isClosed": true 179 | } 180 | ] 181 | }, 182 | "xAdvance": 500 183 | } 184 | }, 185 | "off1": { 186 | "glyph": { 187 | "path": { 188 | "contours": [ 189 | { 190 | "points": [ 191 | { 192 | "x": 129, 193 | "y": 1 194 | }, 195 | { 196 | "x": 129, 197 | "y": -39, 198 | "type": "cubic" 199 | }, 200 | { 201 | "x": 247, 202 | "y": -39, 203 | "type": "cubic" 204 | }, 205 | { 206 | "x": 247, 207 | "y": 1 208 | }, 209 | { 210 | "x": 247, 211 | "y": 173, 212 | "type": "cubic" 213 | }, 214 | { 215 | "x": 276.5, 216 | "y": 322.5, 217 | "type": "cubic" 218 | }, 219 | { 220 | "x": 314.5, 221 | "y": 428.5 222 | }, 223 | { 224 | "x": 365.5, 225 | "y": 462.5, 226 | "type": "cubic" 227 | }, 228 | { 229 | "x": 282.5, 230 | "y": 595.5, 231 | "type": "cubic" 232 | }, 233 | { 234 | "x": 235.5, 235 | "y": 563.5 236 | }, 237 | { 238 | "x": 171.5, 239 | "y": 409.5, 240 | "type": "cubic" 241 | }, 242 | { 243 | "x": 129, 244 | "y": 212, 245 | "type": "cubic" 246 | } 247 | ], 248 | "isClosed": true 249 | } 250 | ] 251 | }, 252 | "xAdvance": 500 253 | } 254 | }, 255 | "off2": { 256 | "glyph": { 257 | "path": { 258 | "contours": [ 259 | { 260 | "points": [ 261 | { 262 | "x": 129, 263 | "y": 1 264 | }, 265 | { 266 | "x": 129, 267 | "y": -39, 268 | "type": "cubic" 269 | }, 270 | { 271 | "x": 247, 272 | "y": -39, 273 | "type": "cubic" 274 | }, 275 | { 276 | "x": 247, 277 | "y": 1 278 | }, 279 | { 280 | "x": 247, 281 | "y": 173, 282 | "type": "cubic" 283 | }, 284 | { 285 | "x": 276.5, 286 | "y": 322.5, 287 | "type": "cubic" 288 | }, 289 | { 290 | "x": 314.5, 291 | "y": 428.5 292 | }, 293 | { 294 | "x": 365.5, 295 | "y": 462.5, 296 | "type": "cubic" 297 | }, 298 | { 299 | "x": 282.5, 300 | "y": 595.5, 301 | "type": "cubic" 302 | }, 303 | { 304 | "x": 235.5, 305 | "y": 563.5 306 | }, 307 | { 308 | "x": 171.5, 309 | "y": 409.5, 310 | "type": "cubic" 311 | }, 312 | { 313 | "x": 129, 314 | "y": 212, 315 | "type": "cubic" 316 | } 317 | ], 318 | "isClosed": true 319 | } 320 | ] 321 | }, 322 | "xAdvance": 500 323 | } 324 | }, 325 | "target": { 326 | "glyph": { 327 | "path": { 328 | "contours": [ 329 | { 330 | "points": [ 331 | { 332 | "x": 129, 333 | "y": 1 334 | }, 335 | { 336 | "x": 129, 337 | "y": -39, 338 | "type": "cubic" 339 | }, 340 | { 341 | "x": 247, 342 | "y": -39, 343 | "type": "cubic" 344 | }, 345 | { 346 | "x": 247, 347 | "y": 1 348 | }, 349 | { 350 | "x": 247, 351 | "y": 154, 352 | "type": "cubic" 353 | }, 354 | { 355 | "x": 285, 356 | "y": 268, 357 | "type": "cubic" 358 | }, 359 | { 360 | "x": 366, 361 | "y": 326, 362 | "smooth": true 363 | }, 364 | { 365 | "x": 404, 366 | "y": 353, 367 | "type": "cubic" 368 | }, 369 | { 370 | "x": 333, 371 | "y": 449, 372 | "type": "cubic" 373 | }, 374 | { 375 | "x": 297, 376 | "y": 423, 377 | "smooth": true 378 | }, 379 | { 380 | "x": 183, 381 | "y": 341, 382 | "type": "cubic" 383 | }, 384 | { 385 | "x": 129, 386 | "y": 186, 387 | "type": "cubic" 388 | } 389 | ], 390 | "isClosed": true 391 | } 392 | ] 393 | }, 394 | "xAdvance": 500 395 | } 396 | } 397 | } 398 | } 399 | -------------------------------------------------------------------------------- /Fontra/nli_avar2.fontra/kerning.csv: -------------------------------------------------------------------------------- 1 | TYPE 2 | kern 3 | 4 | GROUPS 5 | 6 | VALUES 7 | side1;side2;de23a2d5;::fontra001-c1bc0cf3;::fontra002-79e386be;::fontra003-c28ff2e7 8 | -------------------------------------------------------------------------------- /Fontra/requirements.txt: -------------------------------------------------------------------------------- 1 | git+https://github.com/googlefonts/fontra.git 2 | -------------------------------------------------------------------------------- /Fontra/setupvenv.sh: -------------------------------------------------------------------------------- 1 | python3 -m venv venv 2 | source venv/bin/activate 3 | pip install --upgrade pip 4 | pip install --upgrade -r requirements.txt 5 | 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We also recommend that a 186 | file or class name and description of purpose be included on the 187 | same "printed page" as the copyright notice for easier 188 | identification within third-party archives. 189 | 190 | Copyright [yyyy] [name of copyright owner] 191 | 192 | Licensed under the Apache License, Version 2.0 (the "License"); 193 | you may not use this file except in compliance with the License. 194 | You may obtain a copy of the License at 195 | 196 | http://www.apache.org/licenses/LICENSE-2.0 197 | 198 | Unless required by applicable law or agreed to in writing, software 199 | distributed under the License is distributed on an "AS IS" BASIS, 200 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 201 | See the License for the specific language governing permissions and 202 | limitations under the License. -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Bézier-interpolations 2 | 3 | 4 | This repository demonstrates how to get Bézier interpolations (as opposed to linear interpolation) out of several layers of a single glyph. 5 | 6 | 1. Draw the initial state of the glyph. 7 | 2. Draw the final state of the glyph. 8 | 3. Draw the intermediate (target) state of the glyph (e.g. at time = 1/2) 9 | (For quadratic, there is only one step; for cubic there are two). 10 | 11 | ## FONTRA - How to do 12 | 13 | For now the Fontra script only makes quadratic Bézier interpolations. 14 | 15 | 1. Set up your virtual environment 16 | ```sh 17 | cd your/repository/folder 18 | source setupvenv.sh 19 | ``` 20 | 2. Run the script in your terminal by referencing the name of your glyph and the names of the start / target / stop layers: 21 | ```sh 22 | time python Fontra/fontra_bezier_interpolations.py --glyphName yourGlyphName --t timeValue --defaultSource nameOfYourDefaultSource --targetSource nameOfYourTargetSource --endSource nameOfYourEndSource --offSource1 nameOfYourOffSource1 --offSource2 nameOfYourOffSource2 your/font/path 23 | ``` 24 | 25 | 26 | ## ROBOFONT - How to do 27 | 28 | 29 | 4. Generate the offset layers using the appropriate functions call 30 | 5. Set up your design space as llustrated below 31 | 6. Moving together the 2 axes (3 axes for Cubic) will generate the Bézier interpolation 32 | 33 | 34 | DESIGN SPACE FOR QUADRATIC BEZIER INTERPOLATION: 35 | 36 | glyphOff -------------------- glyphEnd 37 | 38 | | | 39 | 40 | | | 41 | 42 | | (glyphTarget) | 43 | 44 | | | 45 | 46 | | | 47 | 48 | glyphStart -------------------- glyphOff 49 | 50 | 51 | DESIGN SPACE FOR CUBIC BEZIER INTERPOLATION: 52 | 53 | glyphOff2 ------------------- glyphEnd 54 | 55 | | | 56 | 57 | | | 58 | (glyphTarget2) 59 | | | 60 | 61 | | | 62 | 63 | | | 64 | 65 | glyphOff2 --------------------- glyphOff2 66 | 67 | / 68 | 69 | glyphOff1 --/---------------- glyphOff1 70 | 71 | | / | 72 | 73 | | / | 74 | (glyphTarget1) 75 | | / | 76 | 77 | | / | 78 | 79 | | / | 80 | 81 | glyphStart -------------------- glyphOff1 82 | -------------------------------------------------------------------------------- /RoboFont/BezierInterpolations.py: -------------------------------------------------------------------------------- 1 | import math 2 | from fontMath import mathGlyph 3 | 4 | def quadraticInverse(glyphName, t, startLayer, stepLayer, endLayer, offLayer): 5 | mathG = mathGlyph.MathGlyph 6 | f = CurrentFont() 7 | g = f[glyphName].getLayer(startLayer) 8 | gStep = f[glyphName].getLayer(stepLayer) 9 | gEnd = f[glyphName].getLayer(endLayer) 10 | gOff = f[glyphName].getLayer(offLayer) 11 | 12 | mg = mathG(g) 13 | mgStep = mathG(gStep) 14 | mgEnd = mathG(gEnd) 15 | 16 | k = 1-t 17 | 18 | gOff.clear() 19 | mgOff = (mgStep - k*k*mg - t*t*mgEnd)/(t*k*2) 20 | pen = gOff.getPen() 21 | mgOff.draw(pen, filterRedundantPoints=True) 22 | 23 | def cubicInverse(glyphName, t1, t2, startLayer, step1Layer, step2Layer, endLayer, off1Layer, off2Layer): 24 | mathG = mathGlyph.MathGlyph 25 | f = CurrentFont() 26 | g = f[glyphName].getLayer(startLayer) 27 | gStep1 = f[glyphName].getLayer(step1Layer) 28 | gStep2 = f[glyphName].getLayer(step2Layer) 29 | gEnd = f[glyphName].getLayer(endLayer) 30 | gOff1 = f[glyphName].getLayer(off1Layer) 31 | gOff2 = f[glyphName].getLayer(off2Layer) 32 | 33 | mg = mathG(g) 34 | mgStep1 = mathG(gStep1) 35 | mgStep2 = mathG(gStep2) 36 | mgEnd = mathG(gEnd) 37 | 38 | k1 = 1-t1 39 | k2 = 1-t2 40 | 41 | mg1 = (mgStep1 - k1*k1*k1*mg - t1*t1*t1*mgEnd)/3 42 | mg2 = (mgStep2 - k2*k2*k2*mg - t2*t2*t2*mgEnd)/3 43 | denom = k1*t2-t1*k2 44 | mgOff1 = ((t2/(k1*t1))*mg1 - (t1/(k2*t2))*mg2)/denom 45 | mgOff2 = (((-k2)/(k1*t1))*mg1 + (k1/(k2*t2))*mg2)/denom 46 | 47 | gOff1.clear() 48 | mgOff1.draw(gOff1.getPen(), filterRedundantPoints=True) 49 | 50 | gOff2.clear() 51 | mgOff2.draw(gOff2.getPen(), filterRedundantPoints=True) 52 | 53 | 54 | # Tests: 55 | quadraticInverse("A", 0.5, "foreground", "quadratictarget", "end", "quadraticoff") 56 | cubicInverse("A", 1/3, 2/3, "foreground", "cubictarget1", "cubictarget2", "end", "cubicoff1", "cubicoff2") 57 | -------------------------------------------------------------------------------- /RoboFont/BezierInterpolations.ufo/fontinfo.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | ascender 6 | 750 7 | capHeight 8 | 750 9 | descender 10 | -250 11 | familyName 12 | BezierInterpolation 13 | guidelines 14 | 15 | postscriptBlueValues 16 | 17 | postscriptFamilyBlues 18 | 19 | postscriptFamilyOtherBlues 20 | 21 | postscriptOtherBlues 22 | 23 | postscriptStemSnapH 24 | 25 | postscriptStemSnapV 26 | 27 | styleName 28 | Regular 29 | unitsPerEm 30 | 1000 31 | xHeight 32 | 500 33 | 34 | 35 | -------------------------------------------------------------------------------- /RoboFont/BezierInterpolations.ufo/glyphs.background/contents.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /RoboFont/BezierInterpolations.ufo/glyphs.background/layerinfo.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | color 6 | 0,0.8,0.2,0.7 7 | 8 | 9 | -------------------------------------------------------------------------------- /RoboFont/BezierInterpolations.ufo/glyphs.cubictarget1/A_.glif: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | -------------------------------------------------------------------------------- /RoboFont/BezierInterpolations.ufo/glyphs.cubictarget1/contents.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | A 6 | A_.glif 7 | 8 | 9 | -------------------------------------------------------------------------------- /RoboFont/BezierInterpolations.ufo/glyphs.cubictarget1/layerinfo.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | color 6 | 0,0.25,1,0.7 7 | 8 | 9 | -------------------------------------------------------------------------------- /RoboFont/BezierInterpolations.ufo/glyphs.cubictarget2/A_.glif: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | -------------------------------------------------------------------------------- /RoboFont/BezierInterpolations.ufo/glyphs.cubictarget2/contents.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | A 6 | A_.glif 7 | 8 | 9 | -------------------------------------------------------------------------------- /RoboFont/BezierInterpolations.ufo/glyphs.cubictarget2/layerinfo.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | color 6 | 0.5,0,1,0.7 7 | 8 | 9 | -------------------------------------------------------------------------------- /RoboFont/BezierInterpolations.ufo/glyphs.end/A_.glif: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | -------------------------------------------------------------------------------- /RoboFont/BezierInterpolations.ufo/glyphs.end/contents.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | A 6 | A_.glif 7 | 8 | 9 | -------------------------------------------------------------------------------- /RoboFont/BezierInterpolations.ufo/glyphs.end/layerinfo.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | color 6 | 0,1,0.25,0.7 7 | 8 | 9 | -------------------------------------------------------------------------------- /RoboFont/BezierInterpolations.ufo/glyphs.quadratictarget/A_.glif: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | -------------------------------------------------------------------------------- /RoboFont/BezierInterpolations.ufo/glyphs.quadratictarget/contents.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | A 6 | A_.glif 7 | 8 | 9 | -------------------------------------------------------------------------------- /RoboFont/BezierInterpolations.ufo/glyphs.quadratictarget/layerinfo.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | color 6 | 0,1,1,0.7 7 | 8 | 9 | -------------------------------------------------------------------------------- /RoboFont/BezierInterpolations.ufo/glyphs/A_.glif: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | -------------------------------------------------------------------------------- /RoboFont/BezierInterpolations.ufo/glyphs/contents.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | A 6 | A_.glif 7 | 8 | 9 | -------------------------------------------------------------------------------- /RoboFont/BezierInterpolations.ufo/glyphs/layerinfo.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | color 6 | 1,0.75,0,0.7 7 | 8 | 9 | -------------------------------------------------------------------------------- /RoboFont/BezierInterpolations.ufo/layercontents.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | foreground 7 | glyphs 8 | 9 | 10 | background 11 | glyphs.background 12 | 13 | 14 | end 15 | glyphs.end 16 | 17 | 18 | quadratictarget 19 | glyphs.quadratictarget 20 | 21 | 22 | cubictarget1 23 | glyphs.cubictarget1 24 | 25 | 26 | cubictarget2 27 | glyphs.cubictarget2 28 | 29 | 30 | 31 | -------------------------------------------------------------------------------- /RoboFont/BezierInterpolations.ufo/lib.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | com.defcon.sortDescriptor 6 | 7 | 8 | ascending 9 | Latin-1 10 | type 11 | characterSet 12 | 13 | 14 | com.typemytype.robofont.compileSettings.autohint 15 | 16 | com.typemytype.robofont.compileSettings.checkOutlines 17 | 18 | com.typemytype.robofont.compileSettings.createDummyDSIG 19 | 20 | com.typemytype.robofont.compileSettings.decompose 21 | 22 | com.typemytype.robofont.compileSettings.generateFormat 23 | 0 24 | com.typemytype.robofont.compileSettings.releaseMode 25 | 26 | com.typemytype.robofont.italicSlantOffset 27 | 0 28 | com.typemytype.robofont.segmentType 29 | curve 30 | com.typemytype.robofont.shouldAddPointsInSplineConversion 31 | 1 32 | com.typemytype.robofont.smartSets.uniqueKey 33 | 4818758160 34 | public.glyphOrder 35 | 36 | space 37 | exclam 38 | quotesingle 39 | quotedbl 40 | numbersign 41 | dollar 42 | percent 43 | ampersand 44 | parenleft 45 | parenright 46 | asterisk 47 | plus 48 | comma 49 | hyphen 50 | period 51 | slash 52 | zero 53 | one 54 | two 55 | three 56 | four 57 | five 58 | six 59 | seven 60 | eight 61 | nine 62 | colon 63 | semicolon 64 | less 65 | equal 66 | greater 67 | question 68 | at 69 | A 70 | B 71 | C 72 | D 73 | E 74 | F 75 | G 76 | H 77 | I 78 | J 79 | K 80 | L 81 | M 82 | N 83 | O 84 | P 85 | Q 86 | R 87 | S 88 | T 89 | U 90 | V 91 | W 92 | X 93 | Y 94 | Z 95 | bracketleft 96 | backslash 97 | bracketright 98 | asciicircum 99 | underscore 100 | grave 101 | a 102 | b 103 | c 104 | d 105 | e 106 | f 107 | g 108 | h 109 | i 110 | j 111 | k 112 | l 113 | m 114 | n 115 | o 116 | p 117 | q 118 | r 119 | s 120 | t 121 | u 122 | v 123 | w 124 | x 125 | y 126 | z 127 | braceleft 128 | bar 129 | braceright 130 | asciitilde 131 | exclamdown 132 | cent 133 | sterling 134 | currency 135 | yen 136 | brokenbar 137 | section 138 | dieresis 139 | copyright 140 | ordfeminine 141 | guillemetleft 142 | logicalnot 143 | registered 144 | macron 145 | degree 146 | plusminus 147 | twosuperior 148 | threesuperior 149 | acute 150 | mu 151 | paragraph 152 | periodcentered 153 | cedilla 154 | onesuperior 155 | ordmasculine 156 | guillemetright 157 | onequarter 158 | onehalf 159 | threequarters 160 | questiondown 161 | Agrave 162 | Aacute 163 | Acircumflex 164 | Atilde 165 | Adieresis 166 | Aring 167 | AE 168 | Ccedilla 169 | Egrave 170 | Eacute 171 | Ecircumflex 172 | Edieresis 173 | Igrave 174 | Iacute 175 | Icircumflex 176 | Idieresis 177 | Eth 178 | Ntilde 179 | Ograve 180 | Oacute 181 | Ocircumflex 182 | Otilde 183 | Odieresis 184 | multiply 185 | Oslash 186 | Ugrave 187 | Uacute 188 | Ucircumflex 189 | Udieresis 190 | Yacute 191 | Thorn 192 | germandbls 193 | agrave 194 | aacute 195 | acircumflex 196 | atilde 197 | adieresis 198 | aring 199 | ae 200 | ccedilla 201 | egrave 202 | eacute 203 | ecircumflex 204 | edieresis 205 | igrave 206 | iacute 207 | icircumflex 208 | idieresis 209 | eth 210 | ntilde 211 | ograve 212 | oacute 213 | ocircumflex 214 | otilde 215 | odieresis 216 | divide 217 | oslash 218 | ugrave 219 | uacute 220 | ucircumflex 221 | udieresis 222 | yacute 223 | thorn 224 | ydieresis 225 | dotlessi 226 | circumflex 227 | caron 228 | breve 229 | dotaccent 230 | ring 231 | ogonek 232 | tilde 233 | hungarumlaut 234 | quoteleft 235 | quoteright 236 | minus 237 | 238 | public.postscriptNames 239 | 240 | public.skipExportGlyphs 241 | 242 | 243 | 244 | -------------------------------------------------------------------------------- /RoboFont/BezierInterpolations.ufo/metainfo.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | creator 6 | com.github.fonttools.ufoLib 7 | formatVersion 8 | 3 9 | 10 | 11 | --------------------------------------------------------------------------------