Can I use <use> to refer to a previously declared object inside a <clipPath> declaration?
So that it uses that element as definition for the clip path?
For example:
<defs>
<rect id="foo" width="20" height="20" />
<clipPath id="bar">
<use href="#foo" />
</clipPath>
</defs>
Yes, you can use the <use> command inside the clipPath declaration to refer to any external objects inside the svg file.
In the example below, clipPath cuts a 80 x 80px square from the image.
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
viewBox="0 0 300 300" style="border:1px solid red">
<defs>
<rect id="foo" width="80" height="80" />
<clipPath id="bar">
<use href="#foo" />
</clipPath>
</defs>
<image clip-path="url(#bar)" xlink:href="http://lorempixel.com/600/600/nature/1" x="20" y="20" height="100%" width="100%" />
</svg>
The red square shows the border of the entire canvas svg.
Related
I want to center the rect shape with something equivalent to
transform="translate(50% - 100,0)" for example:
<svg width="100%" height="100%" viewbox="0 0 100% 100%">
<g transform="translate(50% - 100,0)">
<rect width="200" height="100" fill="rgb(0,0,255)" />
</g>
</svg>
I can't find the right syntax.
You can use an inner <svg> element to do the percentage part via its x attribute then the rest with the <g> element as you already have.
I'm not sure what you intend with the viewBox but percentage values are not valid there. Looks like you just don't need that at all.
<svg width="100%" height="100%">
<svg x="50%" overflow="visible">
<g transform="translate(-100,0)">
<rect width="200" height="100" fill="rgb(0,0,255)" />
</g>
</svg>
</svg>
I have some SVG elements grouped together in a <g> element (exactly the barcode 1D, PHP generates a barcode).
<g
style="fill:#000000;stroke:none"
id="barcode1D"
transform="matrix(1.2083333,0,0,0.8247805,62.027778,573.54235)">
<rect
x="0"
y="0"
width="4"
height="30"
id="xyz" />
....
<rect
x="224"
y="0"
width="0"
height="30"
id="xyzn" /> </g>
The barcode is generated in various widths, lengths. How can I set the width permanently ?
Based on this example, I am asking for a hint. Thank you for your help in advance.
SVG g element does not have width and height attributes. Therefore, you can not set height and width on it.
You should use a foreignObject with a svg inside of it to do so.
<svg width="640" height="480" xmlns="http://www.w3.org/2000/svg">
<foreignObject id="G" width="300" height="200">
<svg>
<!-- Barcode here -->
<rect fill="black" stroke-width="2" height="112" width="84" y="55" x="55" stroke="#000000"/>
<circle fill="#FF0000" stroke="#000000" stroke-width="5" cx="155" cy="65" id="svg_7" r="50"/>
</svg>
</foreignObject>
</svg>
I need to apply mask to a different objects.
Mask should cover whole object (visible part of it). I put the mask inside one specific place, at the top of the page, changed maskContentUnits to objectBoundingBox, so it worked perfectly.
But then a problem appeared.
I made a fiddle to illustrate the problem: http://jsfiddle.net/8qdt7vjr/1/
<body>
<svg width="0" height="0">
<defs>
<mask id="mask1" maskContentUnits="objectBoundingBox">
<ellipse cx=".5" cy=".5" rx=".5" ry=".5" fill="white" />
</mask>
</defs>
</svg>
<svg class="svg" width="200" height="150" overflow="visible">
<rect x="-50" y="-50" width="350" height="250" fill="none" stroke="green" stroke-width="2" />
<svg id="zzz" x="0" y="0" width="100%" height="100%" overflow="visible" mask="url(#mask1)">
<rect x="-50" y="-50" width="350" height="250" fill="blue" fill-opacity=".3" />
</svg>
<rect width="100%" height="100%" fill="red" fill-opacity=".1" stroke="red" stroke-width="1" />
</svg>
</body>
In this fiddle i want to apply mask to svg element with id="zzz". But inside this element there is a rect element, that increases zzz's bounding box. In the fiddle it is rect, but in my project it is an image tag. zzz has overflow set to hidden (in the fiddle I changed it to visible, so it is easier to see the problem), so I have a specific portion of image visible inside zzz.
The real problem is that zzz's inner content increases zzz's bounding box.
In the fiddle I want ellipse mask to be inside red rectangle (visible zzz's area), but it is inside green rectangle (zzz's bounding box) instead.
So the main question is: is there any way to achieve this goal? Mask will be used by many elements with different sizes and content and I do not want to clone it.
Is there any way to do this without cloning mask inside each element?
Is there any way to reduce bounding box to visible area?
Is there any way to show a part of an image without expanding parent's bounding box?
Is there any other way to do this?
Is it something like this you try to achieve?
<body>
<svg width="0" height="0">
<defs>
<mask id="mask1" maskContentUnits="userSpaceOnUse">
<ellipse cx="100" cy="75" rx="100" ry="75" fill="white" />
</mask>
</defs>
</svg>
<svg class="svg" width="200" height="150" overflow="visible">
<rect x="-50" y="-50" width="350" height="250" fill="none" stroke="green" stroke-width="2" />
<svg id="zzz" x="0" y="0" width="100%" height="100%" overflow="visible" mask="url(#mask1)">
<rect x="-50" y="-50" width="350" height="250" fill="blue" fill-opacity=".3" />
</svg>
<rect width="100%" height="100%" fill="red" fill-opacity=".1" stroke="red" stroke-width="1" />
</svg>
</body>
Maybe using userSpaceOnUse instead of objectBoundingBox can help achieve what you want... In combination with nested svg elements you can define the userspace to use and with that the part the mask is applied to...
I have an svg shape which uses a pattern. I want the pattern to NOT scale when i scale the shape.
Here's a fiddle with a minimal example, the bigger circle should show the pattern like the smaller one:
http://jsfiddle.net/cTMrQ/6/
<svg style="position: absolute" width="100%" height="100%" version="1.1" baseProfile="full" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ev="http://www.w3.org/2001/xml-events">
<defs>
<pattern id="checkerPattern" patternUnits="userSpaceOnUse" x="0" y="0" width="4" height="4">
<image x="0" y="0" xlink:href="http://inwonderland.at/new/lines.png" width="4" height="4" />
</pattern>
<circle fill="url(#checkerPattern)" id="c" cx="50" cy="50" r="50" />
</defs>
<use x="100" y="100" xlink:href="#c" />
<use x="200" y="100" xlink:href="#c" transform="scale(2)" />
</svg>
In the end the shape will be a complex path and the image in the pattern will be a scan of a piece of paper, so just drawing a bigger circle instead of scaling it won't work.
Update
To clarify what i want, here are two images:
this is what it looks like, no matter what i try, when i scale the shape:
http://inwonderland.at/new/ihave.png
this is what i want:
http://inwonderland.at/new/iwant.png
i want the background image (bitmap image) to always have its natural size.
You can't get what you want using a pattern, the transform always happens after the fill, and you can't just move the pattern fill into a wrapper either. My suggestion is to use a filter and apply the filter on a wrapper - like so:
<svg style="position: absolute" width="100%" height="100%" version="1.1" baseProfile="full" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ev="http://www.w3.org/2001/xml-events">
<defs>
<circle fill="url(#checkerPattern)" id="c1" cx="50" cy="50" r="50" />
<filter id="linepattern" x="0%" y="0%" height="100%" width="100%">
<feImage xlink:href="http://inwonderland.at/new/lines.png" result="pattern" width="4" height="4"/>
<feTile/>
<feComposite operator="in" in2="SourceGraphic"/>
</filter>
</defs>
<use filter="url(#linepattern)" x="100" y="100" xlink:href="#c1" />
<use filter="url(#linepattern)" x="200" y="100" xlink:href="#c1" transform="scale(2)" />
<g filter="url(#linepattern)">
<use x="50" y="100" xlink:href="#c1" transform="scale(2)" />
</g>
</svg>
Using viewport
1:1 no zoom
<svg width="800" height="400" viewBox="0 0 800 400">
2:1 zoom double size
<svg width="800" height="400" viewBox="0 0 400 200">
The following elements can use the viewBox attribute
<svg>
<symbol>
<image>
<marker>
<pattern>
<view>
viewbox is fully animatable; and you can zoom into any center point.
<animate attributeName="viewBox" begin="1s" dur="1s"
values="0 0 600 400; 250 180 300 200" fill="freeze" />
Transform a parent tag
Yes an SVG can be a child element but more commonly shapes made with multible tags are placed inside a group tag.
Transform scale can be used with tags which are parents IE the group tag.
<g transform="scale(1.5)">
/* draw your shape inside the g tag */
<use x="100" y="100" xlink:href="#c" />
<use x="200" y="100" xlink:href="#c" />
</g>
So using your above example scale the shape in a parent tag.
Update
To scale image but not patterns in other words move patterns, or icons, on background image that scales.
<g transform="scale(2)">
/* draw your shape inside the g tag */
<use x="100" y="100" xlink:href="#c" transform="scale(.5)" />
<use x="200" y="100" xlink:href="#c" transform="scale(.5)"/>
</g>
Update full svg
I had to move things around a bit, One full size, (lets call it a map), with an overlay of 1 half size map in the upper left corner. setting the full screen to render between 0 and max of 600. Setting a viewport the same but with the width set to 300 scales it down. I do need to double the radius for this example of scaling.
<svg viewBox="0 0 600 600" style="position: absolute" width="100%" height="100%" version="1.1" baseProfile="full"
xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ev="http://www.w3.org/2001/xml-events">
<defs>
<pattern id="checkerPattern" patternUnits="userSpaceOnUse" x="0" y="0" width="4" height="4">
<image x="0" y="0" xlink:href="http://inwonderland.at/new/lines.png" width="4" height="4" />
</pattern>
<circle fill="url(#checkerPattern)" id="c" cx="50" cy="50" r="50" />
<circle fill="url(#checkerPattern)" id="c2" cx="50" cy="50" r="100" />
</defs>
<use x="100" y="100" xlink:href="#c" transform="scale(.5)"/>
<use x="200" y="100" xlink:href="#c" transform="scale(1)"/>
<rect width="600" height="600" style="fill: none; stroke: black;" />
<svg viewBox="0 0 600 600" width="300" height="300" x="300">
<use x="100" y="100" xlink:href="#c2" transform="scale(.5)"/>
<use x="200" y="100" xlink:href="#c2" transform="scale(1)"/>
<rect width="600" height="600" style="fill: none; stroke: black;" />
</svg>
</svg>
This example is scaled using the same circle pattern. The radius does not need to be changed here because the location is not in the tag being scaled. I'm making use of svg tags here but other tags can be used.
<svg viewBox="0 0 600 600" style="position: absolute" width="100%" height="100%" version="1.1" baseProfile="full"
xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ev="http://www.w3.org/2001/xml-events">
<defs>
<pattern id="checkerPattern" patternUnits="userSpaceOnUse" x="0" y="0" width="4" height="4">
<image x="0" y="0" xlink:href="http://inwonderland.at/new/lines.png" width="4" height="4" />
</pattern>
<circle fill="url(#checkerPattern)" id="c" r="50" cx="50" cy="50" />
</defs>
<svg x="100" y="100"><use xlink:href="#c" transform="scale(.5)"/></svg>
<svg x="200" y="100"><use xlink:href="#c" transform="scale(1)"/></svg>
<rect width="600" height="600" style="fill: none; stroke: black;" />
<svg viewBox="0 0 600 600" width="300" height="300" x="300">
<svg x="100" y="100"><use xlink:href="#c" transform="scale(1)"/></svg>
<svg x="200" y="100"><use xlink:href="#c" transform="scale(2)"/></svg>
<rect width="600" height="600" style="fill: none; stroke: black;" />
</svg>
</svg>
I use the same clipPath in different inline SVG's what:
http://jsfiddle.net/meo/4nBnS/
<svg class="svg-graphic" width="0" height="0" xmlns="http://www.w3.org/2000/svg" xlink="http://www.w3.org/1999/xlink" version="1.1">
<clipPath id="hex-mask">
<polygon points="270,0 0,160 0,485 270,645 560,485 560,160"></polygon>
</clipPath>
</svg>
<svg class="svg-graphic" width="180" height="200" xmlns="http://www.w3.org/2000/svg" xlink="http://www.w3.org/1999/xlink" version="1.1">
<rect clip-path="url(#hex-mask)" x="0" y="0" width="100%" height="100%" fill="purple" />
</svg>
<svg class="svg-graphic" width="180" height="200" xmlns="http://www.w3.org/2000/svg" xlink="http://www.w3.org/1999/xlink" version="1.1">
<rect clip-path="url(#hex-mask)" x="0" y="0" width="100%" height="100%" fill="red" />
</svg>
Is it a good practice to do a 0x0px SVG element with all the paths i would like to use? Is there a better way to do this?
Typically you'd define the reusable components inside a <defs> element (in one of the <svg> elements on your page). It doesn't matter that much in which of the <svg> elements the <defs> is placed, but I'd recommend you to put it as the first child inside the first svg on the page (since the references can then be resolved directly on first use).