SVG align rect to bottom-right of parent element - html

i'm trying to draw a rect in SVG (300x300 px) and align 4 smaller rects in each corner of the parent Rect (10x10 px), but every small child rect has the full size of the parent rect.
<svg width="300" height="300">
<svg height="10" width="10" />
<svg height="10" width="10" />
<svg height="10" width="10" />
<svg height="10" width="10" />
</svg>
You can view my results here: http://jsfiddle.net/8tY3b/
If I set the width or height of the inner SVG Elements to 10px it works with every edge except the bottom right one.
Is there a way to align a child element to the bottom right of his parent element?

Do you want to embed svg elements or draw rectangles? In case you're satisfied with the latter, here you go:
<?xml version="1.0" encoding="utf-8"?>
<!-- SO: http://stackoverflow.com/questions/15495978/svg-circled-text-on-textpath-center-align -->
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg xmlns="http://www.w3.org/2000/svg"
xmlns:xhtml="http://www.w3.org/1999/xhtml"
xmlns:xlink="http://www.w3.org/1999/xlink"
version="1.1"
width="15cm" height="15cm"
viewBox="0 0 300 300"
preserveAspectRatio="none"
style="background-color:white; border: solid 1px black;"
>
<rect fill="green" stroke="blue" stroke-width="2" height="10" width="10" x="0" y="0"/>
<rect fill="green" stroke="blue" stroke-width="2" height="10" width="10" x="290" y="0"/>
<rect fill="green" stroke="blue" stroke-width="2" height="10" width="10" x="0" y="290"/>
<rect fill="green" stroke="blue" stroke-width="2" height="10" width="10" x="290" y="290"/>
</svg>
The value none for the attribute preserveAspectRatio allows for arbitrary scaling.

Related

How do maskUnits & maskContentUnits attributes affect mask positioning?

I've read a bit of the spec for the SVG mask element but the sections on maskUnits and maskContentUnits aren't clear to me, and also how they affect each other isn't clear to me.
From the spec:
maskUnits = 'userSpaceOnUse': x, y, width and height represent values in the current user coordinate system in place at the time when the mask element is referenced.
maskUnits = 'boundingBox': x, y, width and height represent fractions or percentages of the object bounding box of the element to which the mask is applied.
maskContentUnits = 'userSpaceOnUse': The user coordinate system for the contents of the mask element is the current user coordinate system in place at the time when the mask element is referenced.
maskContentUnits = 'boundingBox': The coordinate system has its origin at the top left corner of the bounding box of the element to which the clipping path applies to and the same width and height of this bounding box.
I've tried editing the maskUnits example and maskContentUnits example on MDN but whenever I change anything something unexpected happens, like the whole element disappears or the mask doesn't seem to be applied.
The snippet below is a sandbox with a few examples of the confusing behavior. I'd expect all of the squares to look different but there are 2 pairs each that are identical, and one of the pairs look like no mask was applied at all:
* {
margin: 0;
padding: 0;
}
body {
padding: 20px 0 0 20px;
}
.hidden {
width: 0;
height: 0;
margin: 0;
}
svg {
width: 100px;
height: 100px;
margin: 0 20px 20px 0;
display: block;
}
p {
margin-bottom: 10px;
font-family: monospace;
}
<!-- mask definitions -->
<svg viewBox="0 0 100 100" class="hidden">
<mask
id="usou-usou"
maskUnits="userSpaceOnUse"
maskContentUnits="userSpaceOnUse"
x="0"
y="0"
width="100"
height="100"
>
<rect x="0" y="0" width="100" height="100" fill="white" />
<circle cx="50" cy="50" r="25" fill="black" />
</mask>
<mask
id="usou-obb"
maskUnits="userSpaceOnUse"
maskContentUnits="objectBoundingBox"
x="0"
y="0"
width="100"
height="100"
>
<rect x="0" y="0" width="100" height="100" fill="white" />
<circle cx="50" cy="50" r="25" fill="black" />
</mask>
<mask
id="obb-usou"
maskUnits="objectBoundingBox"
maskContentUnits="userSpaceOnUse"
x="0"
y="0"
width="100"
height="100"
>
<rect x="0" y="0" width="100" height="100" fill="white" />
<circle cx="50" cy="50" r="25" fill="black" />
</mask>
<mask
id="obb-obb"
maskUnits="objectBoundingBox"
maskContentUnits="objectBoundingBox"
x="0"
y="0"
width="100"
height="100"
>
<rect x="0" y="0" width="100" height="100" fill="white" />
<circle cx="50" cy="50" r="25" fill="black" />
</mask>
</svg>
<p>maskUnits = userSpaceOnUse &<br> maskContentUnits = userSpaceOnUse</p>
<svg viewBox="0 0 100 100">
<rect
x="0"
y="0"
width="100"
height="100"
mask="url(#usou-usou)"
/>
</svg>
<p>maskUnits = userSpaceOnUse &<br> maskContentUnits = objectBoundingBox</p>
<svg viewBox="0 0 100 100">
<rect
x="0"
y="0"
width="100"
height="100"
mask="url(#usou-obb)"
/>
</svg>
<p>maskUnits = objectBoundingBox &<br> maskContentUnits = userSpaceOnUse</p>
<svg viewBox="0 0 100 100">
<rect
x="0"
y="0"
width="100"
height="100"
mask="url(#obb-usou)"
/>
</svg>
<p>maskUnits = objectBoundingBox &<br> maskContentUnits = objectBoundingBox</p>
<svg viewBox="0 0 100 100">
<rect
x="0"
y="0"
width="100"
height="100"
mask="url(#obb-obb)"
/>
</svg>
We know what units are in ordinary life, there are inches, miles, kilometers etc.
One inch is not the same as one kilometre. If you draw a tiny picture, one inch across and you put a frame round it 2 inches across, the picture itself won't change if we make the frame 2 kilometres across. Equally, changing the picture size doesn't change how much is visible inside the picture frame unless the frame is too small for the picture.
maskUnits affect the units of the picture (mask) frame, maskContentUnits affect the units of the picture (mask).
objectBoundingBox units are defined such that 0 is the left side of the masked shape and 1 is the right side.
userSpaceOnUse units use the same co-ordinate system as the masked shape itself. If you mask a rect which extends from 50-100 then your mask ought to cover that area too if you want to mask the entire rect.
If you draw a circle with a radius of 100 kilometres centred 100 kilometres from the origin in both directions, then look at a square 1 millimetre across that starts at the origin, that square will have nothing drawn on it as everything is drawn outside that area.
We're masking
<rect x="0" y="0" width="100" height="100"/>
So our mask's x, y, width and height i.e.
<mask maskUnits="userSpaceOnUse" x="0" y="0" width="100" height="100"/>
need to cover the same area (or more) if we want to mask that shape and they do.
If we had maskUnits="objectBoundingBox" we'd need
<mask maskUnits="objectBoundingBox" x="0" y="0" width="1" height="1"/>
Using 100 for the width and height would make the mask 100 times the size it needs to be but other than wasting lots of memory, it has no visible effect.
maskContentUnits work the same for the mask's content i.e.
<rect x="0" y="0" width="100" height="100" fill="white" />
<circle cx="50" cy="50" r="25" fill="black" />
Either they need to be 0..1 for objectBoundingBox or 0..100 for the shape. Since they are far too big for objectBoundingBox the mask is all one colour as the shapes are outside the area you can see i.e. the area over the shape.
<!-- mask definitions -->
<svg viewBox="0 0 100 100" class="hidden">
<mask
id="usou-usou"
maskUnits="userSpaceOnUse"
maskContentUnits="userSpaceOnUse"
x="0"
y="0"
width="100"
height="100"
>
<rect x="0" y="0" width="100" height="100" fill="white" />
<circle cx="50" cy="50" r="25" fill="black" />
</mask>
<mask
id="usou-obb"
maskUnits="userSpaceOnUse"
maskContentUnits="objectBoundingBox"
x="0"
y="0"
width="100"
height="100"
>
<rect x="0" y="0" width="1" height="1" fill="white" />
<!-- if we wanted the same mask as above it would be r="0.25" -->
<circle cx=".5" cy=".5" r=".1" fill="black" />
</mask>
<!-- have the mask cover only the top left quarter of the shape -->
<mask
id="obb-usou"
maskUnits="objectBoundingBox"
maskContentUnits="userSpaceOnUse"
x="0"
y="0"
width="0.5"
height="0.5"
>
<rect x="0" y="0" width="100" height="100" fill="white" />
<circle cx="50" cy="50" r="25" fill="black" />
</mask>
<!-- have the mask cover only the top left quarter of the shape -->
<mask
id="obb-obb"
maskUnits="objectBoundingBox"
maskContentUnits="objectBoundingBox"
x="0"
y="0"
width="0.5"
height="0.5"
>
<rect x="0" y="0" width="1" height="1" fill="white" />
<!-- if we wanted the same mask as above it would be r="0.25" -->
<circle cx=".5" cy=".5" r=".1" fill="black" />
</mask>
</svg>
<p>maskUnits = userSpaceOnUse &<br> maskContentUnits = userSpaceOnUse</p>
<svg viewBox="0 0 100 100">
<rect
x="0"
y="0"
width="100"
height="100"
mask="url(#usou-usou)"
/>
</svg>
<p>maskUnits = userSpaceOnUse &<br> maskContentUnits = objectBoundingBox</p>
<svg viewBox="0 0 100 100">
<rect
x="0"
y="0"
width="100"
height="100"
mask="url(#usou-obb)"
/>
</svg>
<p>maskUnits = objectBoundingBox &<br> maskContentUnits = userSpaceOnUse</p>
<svg viewBox="0 0 100 100">
<rect
x="0"
y="0"
width="100"
height="100"
mask="url(#obb-usou)"
/>
</svg>
<p>maskUnits = objectBoundingBox &<br> maskContentUnits = objectBoundingBox</p>
<svg viewBox="0 0 100 100">
<rect
x="0"
y="0"
width="100"
height="100"
mask="url(#obb-obb)"
/>
</svg>

Keep <text> element scaled inside <svg> with viewBox

I'm trying to put some text as labels inside some scaled elements, and the text is too big to fit in the container. What can I do here?
<div class="t_container">
<div class="t_x" style="position: relative;">
<svg position="absolute" viewBox="0 0 6 1" preserveAspectRatio="none">
<g>
<rect x="0" y="0" width="1" height="0.4"><title>Nov-21</title></rect>
<text x="0.5" y="0.5" fill="red">A<text>
</g>
<rect x="1" y="0" width="1" height="1"><title>Nov-22</title></rect>
<rect x="2" y="0" width="1" height="1"><title>Nov-23</title></rect>
<rect x="3" y="0" width="1" height="1"><title>Nov-24</title></rect>
<rect x="4" y="0" width="1" height="1"><title>Nov-25</title></rect>
<rect x="5" y="0" width="1" height="1"><title>Nov-26</title></rect></svg>
</div>
Here is a codepen with the result.
You have a very small custom viewport="0 0 6 1" size. 6px - width, 1px - height, so the font can not be displayed with such parameters.
I increased the size of the viewBox 100 times viewBox="0 0 600 100"
Squares for clarity painted in different colors. You can change their coloring according to your choice.
The text is placed inside the squares. I hope that's exactly what you wanted when you used the command
<title> Nov-24 </ title> inside the squares.
But the command <title> in SVG is a system tooltip, the information from which appears when you hover the cursor.
The size of the tooltip and its font can not be changed, so I added in the squares more tags <text> ... </ text>, the parameters of which you can change.
<div class="t_container">
<div class="t_x" style="position: relative;">
<svg position="absolute" viewBox="0 0 600 100" >
<g>
<rect x="0" y="0" width="100" height="40"><title>Nov-21</title></rect>
<text x="35" y="75" font-size="36" fill="red">A</text>
</g>
<rect x="100" y="0" width="100" height="100" fill="orange">
<title>Nov-22</title></rect>
<text x="125" y="55" font-size="18" fill="white">Nov-22</text>
<rect x="200" y="0" width="100" height="100" fill="orangered">
<title>Nov-23</title></rect>
<text x="225" y="55" font-size="18" fill="white">Nov-23</text>
<rect x="300" y="0" width="100" height="100" fill="green">
<title>Nov-24</title></rect>
<text x="325" y="55" font-size="18" fill="white">Nov-24</text>
<rect x="400" y="0" width="100" height="100" fill="dodgerblue">
<title>Nov-25</title></rect>
<text x="425" y="55" font-size="18" fill="white">Nov-25</text>
<rect x="500" y="0" width="100" height="100" fill="yellowgreen">
<title>Nov-26</title></rect>
<text x="525" y="55" font-size="18" fill="white">Nov-26</text>
</svg>
</div>

Keep svg pattern scaling when resizing svg-shape

I have a svg-pattern applied to a polygon. It's working fine.
When I set another size on the svg-polygon, I don't want to scale the pattern.
I've tried all combinations I can think of with viewBox, patternUnits and patternContentUnits. The goal is to make the polygon work responsibly e.g. scale with it's parent element. Can anyone point me in the right direction?
<svg width="1000" fill="#ccc" viewBox="0 0 1440 60">
<defs>
<pattern id="pattern" x="0" y="0" width="900" height="600" patternUnits="userSpaceOnUse" patternContentUnits="userSpaceOnUse">
<svg x="0" y="0" width="900.4" height="600" viewBox="0 0 900.4 600">
<!-- pattern code -->
</svg>
</pattern>
</defs>
<polygon points="0,0 1440,0 1440,20 0,60" x="0" y="0" stroke="#bbb" fill="url(#pattern)" />
</svg>
<svg width="500" fill="#ccc" viewBox="0 0 1440 60">
<defs>
<pattern id="pattern" x="0" y="0" width="900" height="600" patternUnits="userSpaceOnUse" patternContentUnits="userSpaceOnUse">
<svg x="0" y="0" width="900.4" height="600" viewBox="0 0 900.4 600">
<!-- pattern code -->
</svg>
</pattern>
</defs>
<polygon points="0,0 1440,0 1440,20 0,60" x="0" y="0" stroke="#bbb" fill="url(#pattern)" />
</svg>
full example: https://codepen.io/anderssonola/pen/QqxKjJ
I solved temporarily by applying the pattern to a <rect>and then use css clip-pathto create the polygon and the pattern does not scale. I still would prefer to solve it with pure svg, since IE does not support the css clip-path.
.clip {
background: gray;
clip-path: polygon(0 0, 100% 0, 100% 30%, 0% 100%);
margin-bottom: 1em;
}
.clip.half {
width: 50%;
}
svg {
display: block;
height: 50px;
width: 100%
}
<div >
<svg>
<defs>
<pattern id="pattern" x="0" y="0" width="900" height="600" patternUnits="userSpaceOnUse" patternContentUnits="userSpaceOnUse">
<svg x="0" y="0" width="900.4" height="600" >
<!-- pattern code -->
</svg>
</pattern>
<rect width="100%" height="50" fill="url(#pattern)" id="pattern-md"/>
</defs>
</svg>
</div>
<div class="clip">
<svg>
<use href="#pattern-md"/>
</svg>
</div>
<div class="clip half" >
<svg>
<use href="#pattern-md" />
</svg>
</div>
Working example: https://codepen.io/anderssonola/pen/oGyBMj/
You could always scale the pattern and size the polygon appropriately e.g.
<polygon transform="scale(2)" points="0,0 720,0 720,10 0,30" stroke="#bbb" fill="url(#pattern)" />

Fill SVG image with pattern

I'm trying to fill SVG image with a pattern in HTML, but I'm not successfull. If I fill with the pattern path, it works. But I cannot apply it onto svg image.
Could you help me please?
Here is example.
Here is example code:
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ev="http://www.w3.org/2001/xml-events" width="400" height="400">
<defs>
<pattern id="image" x="0" y="0" width="400" height="400" patternUnits="userSpaceOnUse">
<image x="0" y="0" xlink:href="latka.jpg" width="100" height="100" />
</pattern>
</defs>
<image x="0" y="0" width="400" height="400" xlink:href="kosile.svg" fill="url(#image)"/>
</svg>
It makes no sense to apply a fill attribute to an embedded SVG. I assume what you were trying to do is create a tiled background on which to superimpose the linked SVG. The easiest way to do this is by adding a <rect> element filled with the background pattern, then put your embedded SVG image on top of this.
Here's an example:
<svg xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink"
width="200" height="200" viewBox="0 0 200 200">
<defs>
<!-- define a pattern using a yellow tile image -->
<pattern id="bgimg" x="0" y="0" width="60" height="60"
patternUnits="userSpaceOnUse">
<image x="0" y="0" width="60" height="60"
xlink:href="http://upload.wikimedia.org/wikipedia/commons/thumb/9/9a/Shades_of_yellow.png/60px-Shades_of_yellow.png" />
</pattern>
</defs>
<!-- use this pattern to fill the SVG background -->
<rect x="0" y="0" width="200" height="200" fill="url(#bgimg)" />
<!-- Embed another SVG (purple circle) on top of this background -->
<image x="40" y="40" width="120" height="120"
xlink:href="http://upload.wikimedia.org/wikipedia/commons/5/5e/FF0084_circle.svg" />
</svg>

Add color and image to fill of SVG circle

I'm looking for a way to fill a SVG circle with a solid color AND an image.
What I have tried for now, is to use this code:
<svg>
<defs>
<pattern id="visits" height="23" width="14">
<image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="icons/visit.png" height="23" width="14" x="0" y="0"></image>
</pattern>
</defs>
<circle cx="30" cy="39" r="9" fill="url(#visits)"></circle>
</svg>
Which draws a circle with my background image, but I would like a background color to my circle as well - how can I achieve this?
I'm looking for an end result as this: http://www.tiikoni.com/tis/view/?id=4ff44d1
- where the red background can be changed, and the white cross is an image.
Just add a red background to the pattern.
<svg>
<defs>
<pattern id="visits" height="23" width="14">
<rect height="23" width="14" fill="red"/>
<image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="icons/visit.png" height="23" width="14" x="0" y="0"></image>
</pattern>
</defs>
<circle cx="30" cy="39" r="9" fill="url(#visits)"></circle>
</svg>