I'm trying to create a filter for only the stroke of path in SVG, but the feImage keeps getting clipped to what I assume is that bounding box (see green rectangle below in code as bounding box). I've tried setting the filter's x/y and width/height to all sorts of positions/sizes, as seems to be the prevailing advice, but nothing works. x/y just offset the feImage and width/height of greater than 100% has no effect.
I won't know in advance if the stroke or fill is solid or something else (like linearGradient.
The below demonstrates what I'm looking to do - just get the stroke of a shape (regardless of size or fill) and apply a filter to it for all modern browsers.
Notes: FF doesn't even display the left-hand feImage. Chrome clips the left and top. Edge clips all 4 sides.
<html>
<body>
<svg width="960" height="540" >
<rect width="960" height="540" stroke="#385D8A" fill="white" stroke-width="3"/>
<svg name="BoundingBox1" class="rect" x="100" y="100" overflow="visible" fill="none" stroke="#00ff00" stroke-width="1">
<path d="M0,0L121.68,0L121.68,121.68L0,121.68Z" />
</svg>
<!-- BELOW IS MODIFIED "SPEECH" SHAPE. NEED A FILTER ON THE STROKE ONLY. -->
<svg name="Speech-strokeonly" x="100" y="100" overflow="visible" fill="blue" stroke="orange" stroke-width="12" xmlns:xlink="http://www.w3.org/1999/xlink">
<defs>
<path d="M35.541,137.084L30.985,113.988A60.926,60.926 0 1 1 53.043,121.34Z" id="strokeOnly" fill="none"/>
<filter id="effs0sp9" color-interpolation-filters="sRGB" x="0" y="0">
<feImage xlink:href="#strokeOnly" />
</filter>
</defs>
<path d="M35.541,137.084L30.985,113.988A60.926,60.926 0 1 1 53.043,121.34Z" id="effs0sp9" filter="url(#effs0sp9)" overflow="visible" />
<text y="160" stroke="black" stroke-width="0.2">this is the one that has undesirable clipping of</text>
<text y="178" stroke="black" stroke-width="0.2">of stroke in Chrome/Edge. Doesn't appear at all in FF</text>
</svg>
<!-- BELOW IS ORIGINAL WITH BOTH FILL AND STROKE -->
<svg name="BoundingBox2" x="400" y="100" overflow="visible" fill="none" stroke="green" stroke-width="1">
<path d="M0,0L121.68,0L121.68,121.68L0,121.68Z" />
</svg>
<svg name="Speech-original" x="400" y="100" overflow="visible" fill="blue" stroke="orange" stroke-width="12">
<path d="M35.541,137.084L30.985,113.988A60.926,60.926 0 1 1 53.043,121.34Z" id="effs0sp9" />
<text y="-22" stroke="black" stroke-width="0.2">this is the original one</text>
<text y="-6" stroke="black" stroke-width="0.2">that I just want the stroke as feImage from</text>
</svg>
</svg>
</body>
</html>
Is there a way to grab the whole stroke of a shape only and use in a filter?
Is it possible to clip an SVG element to an unclosed path (e.g. a straight line)?
For example:
<svg>
<rect x="0" y="0" width="100" height="100" fill="blue" clip-path="url(#mask)"></rect>
<defs>
<clipPath id="mask">
<path stroke-width="10" stroke="white" d="M 0 0 L 100 100"></path>
</clipPath>
</defs>
</svg>
You can use that as a clipPath but it will clip everything because stroke doesn't count for clipPaths.
The raw geometry of each child element exclusive of rendering properties such as ‘fill’, ‘stroke’, ‘stroke-width’ within a ‘clipPath’ conceptually defines a 1-bit mask
I have a pin that needs to be shown inside a circle in Svg.
My current code is the following:
<svg viewBox="0 0 20 20" preserveAspectRatio="xMinYMin meet">
<circle cx="50%" cy="1.5" r="1.5" style="fill: green;"></circle>
<svg x="47.5%" y="5%" viewBox="0 0 10000 10000" fill="#fff" preserveAspectRatio="none">
<g>
<path d="M250,124.3c-35,0-63.4,28.8-63.4,64.1c0,35.3,28.5,64,63.4,64s63.4-28.8,63.4-64.1C313.4,153,285,124.3,250,124.3z
M250,222c-18.3,0-33.2-15.1-33.2-33.7s14.9-33.7,33.2-33.7s33.2,15.1,33.2,33.7S268.3,222,250,222z">
</path>
<path d="M250,50.9c-74.9,0-135.8,61.6-135.8,137.4c0,31.3,22.5,84.4,66.9,157.7c32.9,54.4,66.2,100.3,66.6,100.7l2.4,3.3l2.4-3.3
c0.3-0.5,33.7-46.3,66.6-100.7c44.4-73.3,66.9-126.4,66.9-157.7C385.8,112.5,324.9,50.9,250,50.9z M250,397.6
c-16.5-24.3-45.5-68.4-69.9-114c-23.5-44-35.9-77-35.9-95.4c0-59,47.4-107,105.8-107s105.8,48,105.8,107
c0,18.4-12.4,51.4-35.9,95.4C295.4,329.3,266.5,373.4,250,397.6z">
</path>
</g>
</svg>
</svg>
which works somewhat but seems inelegant, and perhaps also buggy. What I would like is a better way to center the group 'inside' the circle without using JavaScript
It would be nice if I could get rid of the extra SVG element in the middle with its really big viewBox that I'm using to place the pin. So if you can show me how to do it with just a g and make a scaling function that would be good.
If you want to use coordinates that contain percentage values, you need an element that has x and y attributes. <use> is such an element, <g> is not.
Your live will be easier if you draw your pin centered on the origin of the coordinate system: translate(-250 -230).
After that, you can easily scale it to the size you need: scale(0.0025) (remember: multiple transform commands are processed right-to-left.)
Finally, you use the pin template with the same x and y coordinates as your circle.
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
viewBox="0 0 20 20" preserveAspectRatio="xMinYMin meet">
<defs>
<!--center the pin around the origin and scale it to final size-->
<g id="pin" transform="scale(0.0025) translate(-250 -230)">
<path d="M250,124.3c-35,0-63.4,28.8-63.4,64.1c0,35.3,28.5,64,63.4,64s63.4-28.8,63.4-64.1C313.4,153,285,124.3,250,124.3z
M250,222c-18.3,0-33.2-15.1-33.2-33.7s14.9-33.7,33.2-33.7s33.2,15.1,33.2,33.7S268.3,222,250,222z" />
<path d="M250,50.9c-74.9,0-135.8,61.6-135.8,137.4c0,31.3,22.5,84.4,66.9,157.7c32.9,54.4,66.2,100.3,66.6,100.7l2.4,3.3l2.4-3.3
c0.3-0.5,33.7-46.3,66.6-100.7c44.4-73.3,66.9-126.4,66.9-157.7C385.8,112.5,324.9,50.9,250,50.9z M250,397.6
c-16.5-24.3-45.5-68.4-69.9-114c-23.5-44-35.9-77-35.9-95.4c0-59,47.4-107,105.8-107s105.8,48,105.8,107
c0,18.4-12.4,51.4-35.9,95.4C295.4,329.3,266.5,373.4,250,397.6z" />
</g>
</defs>
<!--use the same coordinates for the center of the circle and the pin-->
<circle cx="50%" cy="1.5" r="1.5" fill="green" />
<use xlink:href="#pin" x="50%" y="1.5" fill="white" />
</svg>
I have an ordinary rectangular bitmap which I would like to be able to use to fill a four-pointed SVG path - basically a mapped texture so that the four corners of the bitmap are mapped to the four points of the path and the rest of the image is 'warped' accordingly.
I have been able to fill an SVG rect with the same image and then transform the rect such that the bitmap is transformed with it:
<defs>
<pattern id="bmp" x="0" y="0" width="1" height="1">
<image x="0" y="0" width="100" height="100" href="mybmp.bmp"/>
</pattern>
</defs>
<rect x="0" y="0" width="100" height="100" fill="url(#bmp)" stroke="black" transform="skewX(10)"/>
When I try to use the bitmap to fill a path though it gets mapped to the bounding box of the path shape and not the four points of the path itself:
<defs>
<pattern id="bmp" x="0" y="0" width="1" height="1">
<image x="0" y="0" width="100" height="100" href="mybmp.bmp"/>
</pattern>
</defs>
<path d="M 0 0 L 100 0 L 120 80 L 50 120 Z" fill="url(#bmp)" stroke="black" />
Is it possible to get the same effect as the first example (texture properly mapped to the all corners of the rectangle) in an arbitrary path shape?
One solution is to give your pattern a viewBox so that its content image gets scaled to fit the pattern bounds.
<svg>
<defs>
<pattern id="bmp" x="0" y="0" width="1" height="1"
viewBox="0 0 100 100">
<image x="0" y="0" width="100" height="100" xlink:href="http://www.placekitten.com/100/100"/>
</pattern>
</defs>
<path d="M 0 0 L 100 0 L 120 80 L 50 120 Z" fill="url(#bmp)" stroke="black" />
</svg>
Depending on the shape of your path, you may also need to set preserveAspectRatio="xMidYMid slice". This will ensure that the pattern gets scaled to a size large enough to cover the whole path with no gaps.
<svg>
<defs>
<pattern id="bmp" x="0" y="0" width="1" height="1"
viewBox="0 0 100 100" preserveAspectRatio="xMidYMid slice">
<image x="0" y="0" width="100" height="100" xlink:href="http://www.placekitten.com/100/100"/>
</pattern>
</defs>
<path d="M 0 0 L 100 0 L 120 80 L 50 120 Z" fill="url(#bmp)" stroke="black" />
</svg>
Normally, the <clipPath> element hides everything that is outside the clip path. To achieve the opposite effect - that is to "cut out" something from the image - i want to use two paths in the clipPath and the clip-rule="evenodd" attribute. Basically, I want to "xor" the clip paths.
But it doesn't work. It shows the region "ORed":
<clipPath clip-rule="evenodd" id="imageclippath" clipPathUnits = "objectBoundingBox">
<rect clip-rule="evenodd" x="0.3" y="0.3" height="0.6" width="6" />
<rect clip-rule="evenodd" x="0" y="0" height="0.5" width="0.5" />
</clipPath>
<rect clip-path="url(#imageclippath)" x="0" y="0" height="500" width="500" fill="red"/>
EDIT:
My problem is that AFAIK <mask> doesn't work in iOS WebKit.
It's much easier to do what you're after with a mask, see this example. Here's the mask definition:
<mask id="maskedtext">
<circle cx="50%" cy="50%" r="50" fill="white"/>
<text x="50%" y="55%" text-anchor="middle" font-size="48">ABC</text>
</mask>
Regions that are white inside the mask will be kept, everything else will be clipped away.
Here's another example that uses clipPath instead, is a bit trickier since you need to use a path element to get the clip-rule to apply. The clipPath that uses clip-rule there looks like this:
<clipPath id="clipPath1">
<path id="p1" d="M10 10l100 0 0 100 -100 0ZM50 50l40 0 0 40 -40 0Z" clip-rule="evenodd"/>
</clipPath>