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<!--
Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/
-->
<svg xmlns="http://www.w3.org/2000/svg">
<title>Test 'stroke-linecap: round' with zero length path segments</title>
<!-- From https://bugzilla.mozilla.org/show_bug.cgi?id=1075399 for paths and
https://bugzilla.mozilla.org/show_bug.cgi?id=1187770 for lines -->
<style>
path, line {
stroke-width: 20px;
stroke-linecap: round;
}
circle {
fill: red;
}
/* expect lime circles to cover red circles */
path.circles-expected, line.circles-expected {
stroke: lime;
}
path.circles-not-expected {
stroke: red;
}
/* thicker stroke to cover circles-not-expected paths */
path.coverer {
stroke: lime;
stroke-width: 24px;
}
/* to show edges of shapes to help in debugging:
g > circle {
stroke: red;
stroke-width: 5px;
}
path.coverer {
stroke: lime;
stroke-width: 18px;
}
*/
</style>
<rect width="100%" height="100%" style="fill:lime"/>
<!-- Column 1: test single segment zero-length subpaths: -->
<g transform="translate(25,25)">
<circle cx="0" cy="0" r="8"/>
<circle cx="50" cy="50" r="8"/>
<circle cx="100" cy="100" r="8"/>
<path class="circles-expected" d="M0,0 L0,0 M20,20 L30,30 M50,50 L50,50 M70,70 L80,80 M100,100 L100,100"/>
</g>
<g transform="translate(25,75)">
<circle cx="0" cy="0" r="8"/>
<circle cx="50" cy="50" r="8"/>
<circle cx="100" cy="100" r="8"/>
<path class="circles-expected" d="M0,0 C0,0 0,0 0,0 M20,20 L30,30 M50,50 C50,50 50,50 50,50 M70,70 L80,80 M100,100 C100,100 100,100 100,100"/>
</g>
<g transform="translate(25,125)">
<circle cx="0" cy="0" r="8"/>
<circle cx="50" cy="50" r="8"/>
<circle cx="100" cy="100" r="8"/>
<path class="circles-expected" d="M0,0 A0,10 0 0 0 0,0 M20,20 L30,30 M50,50 A0,10 0 0 0 50,50 M70,70 L80,80 M100,100 A0,10 0 0 0 100,100"/>
</g>
<g transform="translate(25,175)">
<circle cx="0" cy="0" r="8"/>
<circle cx="50" cy="50" r="8"/>
<circle cx="100" cy="100" r="8"/>
<path class="circles-expected" d="M0,0 Z M20,20 L30,30 M50,50 Z M70,70 L80,80 M100,100 Z"/>
</g>
<!-- Column 2: test multi-segment zero-length subpaths: -->
<g transform="translate(175,25)">
<circle cx="0" cy="0" r="8"/>
<circle cx="50" cy="50" r="8"/>
<circle cx="100" cy="100" r="8"/>
<path class="circles-expected" d="M0,0 L0,0 M0,0 L0,0 M20,20 L30,30 M50,50 L50,50 L50,50 M70,70 L80,80 M100,100 L100,100 L100,100"/>
</g>
<g transform="translate(177,75)">
<circle cx="0" cy="0" r="8"/>
<circle cx="50" cy="50" r="8"/>
<circle cx="100" cy="100" r="8"/>
<path class="circles-expected" d="M0,0 C0,0 0,0 0,0 C0,0 0,0 0,0 M20,20 L30,30 M50,50 C50,50 50,50 50,50 C50,50 50,50 50,50 M70,70 L80,80 M100,100 C100,100 100,100 100,100 C100,100 100,100 100,100"/>
</g>
<g transform="translate(175,125)">
<circle cx="0" cy="0" r="8"/>
<circle cx="50" cy="50" r="8"/>
<circle cx="100" cy="100" r="8"/>
<path class="circles-expected" d="M0,0 A0,10 0 0 0 0,0 A0,10 0 0 0 0,0 M20,20 L30,30 M50,50 A0,10 0 0 0 50,50 A0,10 0 0 0 50,50 M70,70 L80,80 M100,100 A0,10 0 0 0 100,100 A0,10 0 0 0 100,100"/>
</g>
<g transform="translate(175,175)">
<circle cx="0" cy="0" r="8"/>
<circle cx="50" cy="50" r="8"/>
<circle cx="100" cy="100" r="8"/>
<path class="circles-expected" d="M0,0 Z Z M20,20 L30,30 M50,50 Z Z M70,70 L80,80 M100,100 Z Z"/>
</g>
<!-- Column 3: test non-zero-length subpaths that begin, end and contain
zero length segments: -->
<g transform="translate(325,25)">
<path class="circles-not-expected" d="M20,20 L20,20 L30,30 L30,30 L40,40 L40,40"/>
<path class="coverer" d="M20,20 L40,40"/>
</g>
<g transform="translate(325,75)">
<path class="circles-not-expected" d="M20,20 C20,20 20,20 20,20 C20,20 30,30 30,30 C30,30 30,30 30,30 C30,30 40,40 40,40 C40,40 40,40 40,40"/>
<path class="coverer" d="M20,20 L40,40"/>
</g>
<g transform="translate(325,125)">
<path class="circles-not-expected" d="M20,20 A0,10 0 0 0 20,20 A0,10 0 0 0 30,30 A0,10 0 0 0 30,30 A0,10 0 0 0 40,40 A0,10 0 0 0 40,40"/>
<path class="coverer" d="M20,20 L40,40"/>
</g>
<!-- this one is shorter because the Z's mean we only have path end points
at 20,20 -->
<g transform="translate(325,175)">
<circle cx="20" cy="20" r="8"/>
<path class="circles-expected" d="M20,20 Z L30,30 Z L40,40 Z"/>
</g>
<!-- Column 4: test lone movetos -->
<g transform="translate(425,25)">
<path class="circles-not-expected" d="M0,0 M0,0 M20,20 L30,30 M50,50 M50,50 M70,70 L80,80 M100,100 M100,100"/>
<path class="coverer" d="M20,20 L30,30 M70,70 L80,80"/>
</g>
<!-- Column 5: test stroke-dasharray -->
<g transform="translate(525,25)">
<circle cy="0" r="8"/>
<circle cy="40" r="8"/>
<circle cy="80" r="8"/>
<path class="circles-expected" d="M0,0v81" stroke-dasharray="0 40" />
</g>
<g transform="translate(575,25)">
<circle cy="0" r="8"/>
<circle cy="40" r="8"/>
<circle cy="80" r="8"/>
<path class="circles-expected" d="M0,0v81" stroke-dasharray="0" />
</g>
<!-- Column 6: test zero-length line -->
<g transform="translate(625, 25)">
<circle cy="0" r="8" />
<line class="circles-expected" x1="0" y1="0" x2="0" y2="0" />
</g>
</svg>
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