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Overview
Comment: | examples and docu of tip 507 added |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA3-256: |
8331611a7fb3683f3de7c7850d5296e8 |
User & Date: | rene 2018-06-13 20:50:54.812 |
Context
2018-06-14
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13:51 | Working on improving TIP 478 check-in: a0932d4977 user: dkf tags: trunk | |
2018-06-13
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20:50 | examples and docu of tip 507 added check-in: 8331611a7f user: rene tags: trunk | |
2018-06-10
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20:49 | Fix some spelling and awkward wording check-in: 52d37fea35 user: dkf tags: trunk | |
Changes
Changes to tip/507.md.
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26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | The original nanosvg project is hosted at https://github.com/memononen/nanosvg # Specification The already existing tksvg extension will be adapted and included in Tk. A new image format will be created. The name is **svgnano**. # Discussion - nanosvg is no full svg library - the name of the image format should mention this (p.e. **nanosvg** or **svgnano**) - are there better libraries with our requirements (C only, license)? # Implementation A patch implementing these changes will be available in the fossil repository in the [tip-507 branch] (https://core.tcl.tk/tk/timeline?r=tip-507). | > > > > > > > > > > > > > > > > > | > > > > > > > > > > > > > > > > > > > > > | 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 | The original nanosvg project is hosted at https://github.com/memononen/nanosvg # Specification The already existing tksvg extension will be adapted and included in Tk. A new image format will be created. The name is **svgnano**. The **svgnano** image format has the following format suboptions: **svgnano** *-dpi dpiValue -scale scaleValue -unit unitValue -x xValue -y yValue* *dpiValue* is used in conversion between given coordiantes and screen resolution. The value must be greater then 0.0. The default value is 96. *scaleValue* is used to scale the resulting image. The value must be greater then 0.0. The default value is 1. *unitValue* is the unit of all coordinates in the svg data. Available units are px (default, coordinates in pixel), mm , cm and in. *xValue* is used to move the created image in x-direction. The default value is 0. *yValue* is used to move the created image in y-direction. The default value is 0. . The svgnano format supports a wide range of SVG features, but something may be missing p.e. text. # Discussion - nanosvg is no full svg library - the name of the image format should mention this (p.e. **nanosvg** or **svgnano**) - are there better libraries with our requirements (C only, license)? # Implementation A patch implementing these changes will be available in the fossil repository in the [tip-507 branch] (https://core.tcl.tk/tk/timeline?r=tip-507). The new format is in the photo.n man page described. # Example of use # the image data set data {<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100"> <path fill="none" stroke="#000000" d="M0 0 h16 v16 h-16 z"/> <path fill="none" stroke="#000000" d="M8 4 v 8 M4 8 h 8"/> <circle fill="yellow" stroke="red" cx="10" cy="80" r="10" /> <ellipse fill="none" stroke="blue" stroke-width="3" cx="60" cy="60" rx="10" ry="20" /> <line x1="10" y1="90" x2="50" y2="99"/> <rect fill="none" stroke="green" x="20" y="20" width="60" height="50" rx="3" ry="3"/> <polyline fill="red" stroke="purple" points="80,10 90,20 85,40"/> <polygon fill ="yellow" points="80,80 70,85 90,90"/> </svg>} # create image image create foo -data $data # change size foo configure -format {svgnano -scale 2} # move right and up, all other values are reset foo configure -format {svgnano -x 10 -y -20} # use other unit foo configure -format {svgnano -unit mm} # Alternatives - using another library with full svg support # Copyright |
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