| This little helper program can be used together with the SVG Tiny 1.2 test |
| suite to determine the visual impact of changes to the renderer on the basis of |
| the test suite. |
| |
| Suppose you have the test suite installed in ~/tests, then you can create a |
| base line of renderings of all the SVG images by running |
| |
| mkdir baseline |
| ./rendertestsuite create-baseline ~/tests |
| |
| and the output will be stored in the 'baseline/' sub-directory. |
| |
| After making changes to the renderer, you can create a new set of images by running |
| |
| mkdir difference |
| ./rendertestsuite diff ~/tests |
| |
| and side-by-side images of the old and the new images in case they differ will |
| be stored in the sub-directory 'difference/'. |
| |
| An easy way to inspect the output is by using KDE's gwenview: |
| |
| gwenview difference/ |
| |
| |
| Note that due to rounding errors there will always be subtle differences, even |
| when not doing any changes to the renderer. |
| |
| |
| You can find the test suite at |
| |
| https://www.w3.org/Graphics/SVG/WG/wiki/Test_Suite_Overview#SVG_1.2_Tiny_Test_Suite:_12_September_2008 |
