Just as the question asks - I'm trying to figure out whether or not it's possible to use some kind of pattern or repeated background image for the stroke of an SVG path.
Is this doable? Or are you limited to colors only?
TIA!
You can use a <pattern> as a stroke e.g.
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<defs>
<pattern id="p1" patternUnits="userSpaceOnUse" width="32" height="32">
<image xlink:href="http://phrogz.net/tmp/alphaball-small.png" width="32" height="32" />
</pattern>
</defs>
<rect stroke-width="32" stroke="url(#p1)" width="200" height="200" fill="none"/>
</svg>
The pattern can contain <svg> drawing elements or (as here) an image, or both.
You can use the property stroke-dasharray for "patterns" in the stroke:
<line stroke-dasharray="5, 5" x1="10" y1="10" x2="190" y2="10" />
With this you can specify the length of strokes and gaps between. For some examples have a look at the MDN example page.
Related
I want to apply a single css rotation transformation to a set of elements in an SVG, such that each element is rotated independently, without having to calculate the centre of each element in the css. For example, I have an SVG that looks like the picture on the left, and want to apply css to achieve the effect on the right
I'm writing the svg myself, and am creating something like this
<svg baseProfile="full" height="200" version="1.1" width="200" xmlns="http://www.w3.org/2000/svg">
<text transform="translate(50 100)" text-anchor="middle">Text 1</text>
<text transform="translate(100 100)" text-anchor="middle">Text 2</text>
</svg>
When I apply a css rotation, e.g. by inserting <style>text {transform: rotate(10deg)}</style>, it seems to overwrite the first transformation, and the rotated text is placed in the top left corner:
I can modify the svg to use `x="X" y="Y" instead of a transform attribute, but that results in the transformation being applied around a different centre instead:
<svg baseProfile="full" height="200" version="1.1" width="200" xmlns="http://www.w3.org/2000/svg">
<style>text {transform: rotate(10deg)}</style>
<text x="50" y="100" text-anchor="middle">Text 1</text>
<text x="100" y="100" text-anchor="middle">Text 2</text>
</svg>
How can I structure the svg so that I can apply a rotation which works independently on each element without overwriting the initial transform?
This is a possible solution:
-The text has x="0" y="0" and is rotated with CSS.
-You put the text in the <defs>.
-You use the text and the <use> element has the x and y values you need.
text{transform:rotate(90deg)}
<svg baseProfile="full" viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
<defs>
<text id="a" text-anchor="middle" >Text 1</text>
<text id="b" text-anchor="middle" >Text 2</text>
</defs>
<use xlink:href="#a" x="50" y="50" />
<use xlink:href="#b" x="100" y="50" />
</svg>
Yet another solution (inspired by the comment of Robert Longson) would wrapping the rotated text in a g element and translate the g
text{transform:rotate(90deg)}
<svg baseProfile="full" viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg">
<g transform="translate(50,50)"><text text-anchor="middle" >Text 1</text></g>
<g transform="translate(100,50)"><text text-anchor="middle" >Text 2</text></g>
</svg>
I define a svg <pattern> like this:
<svg height="10" width="10" xmlns="http://www.w3.org/2000/svg" version="1.1">
<defs>
<pattern id="circles-1_4" patternUnits="userSpaceOnUse" width="10" height="10">
<image xlink:href="data:image/svg+xml;base64,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"
x="0" y="0" width="10" height="10">
</image>
</pattern>
</defs>
</svg>
visually, this is the equivalent of this:
So then I call my css for svg as a fill like this:
svg #VISUEL-3 * {fill: url(#circles-1);}
I get a pretty good result:
But when I display my graphic smaller (1/4 in this i.e), the fill adapt like this
It's difficult to see on the screenshots because the scale is broken due to the width 100% of stackoverflow but the vector-effect:non-scaling-stroke works perfectly so the strokes have the same size between the first and the second screenshot and the number "1,2,3,4,5,6" as well.
So as you can see the fill has adapted...
Is it possible to keep the same pattern size (same size of dots) like in css? That look messy visually when I have two graphics that are not of the same size and are next to each other.
Is my method right to obtain that? (I'm ready to change my method..)
The pattern elements are applied to the referencing element before transformations on the element or one of its parents are applied - so the pattern size gets transformed as well. The only way to counteract this is to write a seperate pattern element for each scale you us it at, including a patternTransform with the inverse scale. Fortunately, there is a mechanism for cloning patterns with a xlink:href attribute.
.simple {
fill: url(#dots);
}
.quarter {
fill: url(#quadrupleDots);
}
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="300" height="150">
<defs>
<pattern id="dots" patternUnits="userSpaceOnUse" width="10" height="10">
<circle r="1.25" cx="1.25" cy="1.25" />
</pattern>
<pattern id="quadrupleDots" xlink:href="#dots" patternTransform="scale(4)" />
</defs>
<rect id="shape" class="simple" x="20" y="20" width="100" height="100" />
<rect class="quarter" x="800" y="80" width="100" height="100" transform="scale(0.25)" />
</svg>
How can I clip an image to text? I would prefer a method that is available in any browser. I tried background-clip but it not available in all modern browsers.
Add a clip-path to an image and you'll see a clipped image.
I've made it look more like your example by adding an additional copy of the image with low opacity behind the clipped image.
<svg width="100%" height="100%">
<defs>
<clipPath id="sample" clipPathUnits="userSpaceOnUse">
<text x="85" y="330" font-family="sans-serif" font-size="380" font-weight="bold">I CAM</text>
</clipPath>
</defs>
<image transform="scale(0.4)" xlink:href="http://netghost.narod.ru/gff/sample/images/png/marble24.png" x="20" y="20" width="1419" height="1001" opacity="0.3" />
<image transform="scale(0.4)" xlink:href="http://netghost.narod.ru/gff/sample/images/png/marble24.png" x="20" y="20" width="1419" height="1001" clip-path="url(#sample)" />
</svg>
It seems that applying the same CSS transform on hover to an HTML or SVG element does not create the same effect. As you can see in the following fiddle, the p and rect do not behave the same way while scaling, and that is precisely my problem.
http://jsfiddle.net/rKD7T/2/
How could I make the rect behave exactly as the p and scale properly?
I tried scaling the rect with a matrix - taking into account the origin point - but it did not seem to work either, or I did it wrong.
I'd like to stick to CSS solutions here but JS ones might also be an option.
Thanks for your help.
This seems about right.
<div>
<p></p>
<p></p>
<p></p>
<p></p>
</div>
<svg>
<g transform="translate(20, 40)">
<rect x="-20" y="-40" width="50" height="100"/>
<g transform="translate(55, 0)" >
<rect x="-20" y="-40" width="50" height="100"/>
</g>
<g transform="translate(110, 0)" >
<rect x="-20" y="-40" width="50" height="100"/>
</g>
<g transform="translate(165, 0)" >
<rect x="-20" y="-40" width="50" height="100"/>
</g>
</g>
</svg>
It works in Firefox trunk but doesn't seem to work with Firefox 16. I haven't tested Firefox Beta or Aurora to see in exactly when it's fixed.
Is it possible to have background for text in svg or css? it means , every character have background?
here is the example:
I have made this in photoshop and made a mask, i just wonder i it is possible in svg or css?
Here is an example using a pattern. It uses <tspan> elements with patterned fill to show you how this may be done on a per-character basis, if desired:
Demo: http://jsfiddle.net/xWNR3/2/
<svg xmlns="http://www.w3.org/2000/svg" xmlns:x="http://www.w3.org/1999/xlink">
<style>
svg { background:#ddd }
text {
font-family:Verdana; font-size:160pt; font-weight:bold;
stroke:#000;
}
</style>
<defs>
<pattern id="p1" patternUnits="userSpaceOnUse" width="32" height="32">
<image x:href="alphaball.png" width="32" height="32" />
</pattern>
<pattern id="p2" patternUnits="userSpaceOnUse" width="10" height="10">
<image x:href="grid.gif" width="10" height="10" />
</pattern>
</defs>
<text x="20" y="170" fill="url(#p1)">
Hello
<tspan x="20" y="350"
fill="url(#p2)">Wo<tspan fill="url(#p1)">r</tspan>ld</tspan>
</text>
</svg>
You can use a mask or a clipPath to do this too, in addition to the way with patterns as in the answers robertc suggested.
Here's an example from the svg testsuite using clipPath.