I'm trying to create a background for my divs which is like a rectangle (with rounded corners) but with the right corner lower than the left one. The height difference between those two corners must remain the same independently of the total height of the background.
Something like that :
I don't know which solution is the best : a full svg, or working only with clip-path in my css.
I tried to create manually an svg but the result seems not enough precise.
<svg width="500" height="200">
<defs>
<mask id="roundCorner">
<rect width="100%" height="100%" fill="white"/>
//left corner
<rect width="50" height="50" fill="black"/>
<circle r="50" cx="50" cy="50" fill="white"/>
//right corner
<rect x='450' y="25" width="50" height="50" fill="black"/>
<circle r="50" cx="450" cy="76" fill="white"/>
//line
<path d="M50 0 L500 30 L500 0 Z" fill='black' />
</mask>
</defs>
<rect x="0" y="0" width="100%" height="100%" fill="lime" mask="url(#roundCorner)"/>
</svg>
So how can I achieve a clean background like this in an efficient way ?
I have looked at several other answers on Stack:
Responsive SVG Clip Path or Mask Image
Responsive SVG image mask
But none seem to work for me. I have an SVG mask based on a path. I want it to expand to fill all available space (or contract) whilst keeping the aspect ratio of the path.
svg {
width: 100%;
height: 100%;
}
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="100%" height="100%" viewBox="0 0 237.859 264.582" preserveAspectRatio="xMinYMin meet">
<defs>
<pattern id="triangle-image" patternUnits="userSpaceOnUse" width="3918" height="3918">
<image xlink:href="images/aspirational-photos/christian-buehner-JQFHdpOKz2k-unsplash.jpg" x="0" y="0" width="100%" height="100%" />
</pattern>
<pattern id="triangle-pattern" width="100%" height="100%" patternUnits="userSpaceOnUse">
<path id="triangle-path" d="M237.844,32.946c-0.001-9.981-4.42-19.279-12.121-25.512c-7.82-6.331-17.85-8.78-27.518-6.721
c-3.373,0.717-6.639,1.979-9.707,3.751l-129.11,74.56l-42.942,24.8C6.147,109.771-0.001,120.42,0,132.312
c0,11.892,6.149,22.541,16.449,28.487l84.623,48.833l87.457,50.486c7.179,4.143,15.193,5.435,23.174,3.736
c15.41-3.279,26.166-16.532,26.156-32.222L237.844,32.946z"
fill="#fff" fill-rule="evenodd" width="100%" height="100%" />
</pattern>
<mask id="triangle-mask" width="100%">
<rect x="0" y="0" width="100%" height="100%" fill="url(#triangle-pattern)" />
</mask>
</defs>
<rect x="0" y="0" width="100%" height="100%" fill="url(#triangle-image)" mask="url(#triangle-mask)"/>
</svg>
The SVG seems to obey the path values no matter what I do. Is there a way to make it expand or contract like an image would?
I've simplified your code in the sense that I'm applying the mask to the image instead of using patterns. Also the mask is the path. I'm not using width="100%" since the width af an svg element will take all the space available i.e 100%.
I would like to understand why you need it height="100%"
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 240 265">
<defs>
<mask id="triangle-mask">
<path d="M237.844,32.946c-0.001-9.981-4.42-19.279-12.121-25.512c-7.82-6.331-17.85-8.78-27.518-6.721
c-3.373,0.717-6.639,1.979-9.707,3.751l-129.11,74.56l-42.942,24.8C6.147,109.771-0.001,120.42,0,132.312
c0,11.892,6.149,22.541,16.449,28.487l84.623,48.833l87.457,50.486c7.179,4.143,15.193,5.435,23.174,3.736
c15.41-3.279,26.166-16.532,26.156-32.222L237.844,32.946z"
fill="#fff" />
</mask>
</defs>
<image xlink:href="https://s3-us-west-2.amazonaws.com/s.cdpn.io/222579/beagle400.jpg" mask="url(#triangle-mask)"/>
</svg>
Alternatively if you need all those patterns please remove width="100%"for the mask in your code.
DEMO
Objective: I am trying to create a triangle shaped proportion less image in HTML.
My Approach: I have decided to use SVG to achieve this by creating a polygon triangle that can stretch & shrink to fit any dimension and used it as a mask on image that is suppose to fit in any dimension without loosing its own proportion.
Issue: Although the shape is working as I want but the background image stretches with the shape, is there any way I can make the image behave to something similar like css background-size: cover property.
Code:
HTML
<div id="svg-container">
<svg width='100%' height='100%' viewBox="0 0 100 100" preserveAspectRatio="none" style='background-color: whitesmoke'>
<defs>
<polygon id="mask" points="0,0 0,100 0,100 100,0" />
<pattern id="image" patternUnits="userSpaceOnUse" width="100" height="100" x="0" y="0">
<image xlink:href="http://lorempixel.com/500/500" x="0" y="0" width="100%" height="100%" preserveAspectRatio="xMinYMin slice"/>
</pattern>
</defs>
<use xlink:href="#mask" fill="url(#image)"></use>
</svg>
</div>
CSS:
#svg-container {
width: 100%;
height: 100px;
}
To check same issue using SVG image tag here.
I'm trying to work out a simple svg example - creating bar graph.
However, I don't have clear grasp of how it works. I rotated an existing graph
upside down but seems like there is a small offset. Corresponding jsfiddle here - http://jsfiddle.net/rhvP8/2/
<div style="width:300px;height:300px;">
<svg xmlns="http://www.w3.org/2000/svg" version="1.1" style="width:100%;height:100%" viewBox="0 0 300 300">
<g>
<rect width="14.55" height="40%" x="0" y="0" fill="black"></rect>
<rect width="14.55" height="20%" x="50" y="0" fill="green"></rect>
<rect width="14.55" height="80%" x="100" y="0" fill="red"></rect>
<rect width="14.55" height="90%" x="150" y="0" fill="yellow"></rect>
<rect width="14.55" height="10%" x="200" y="0" fill="pink"></rect>
<rect width="14.55" height="60%" x="250" y="0" fill="orange"></rect>
</g>
</svg>
</div>
<div style="width:300px;height:300px;">
<svg xmlns="http://www.w3.org/2000/svg" version="1.1" style="width:100%;height:100%" viewBox="0 0 300 300">
<g transform="rotate(180)">
<rect width="14.55" height="40" x="-50" y="-300" fill="black"></rect>
<rect width="14.55" height="20" x="-100" y="-300" fill="green"></rect>
<rect width="14.55" height="35" x="-150" y="-300" fill="red"></rect>
<rect width="14.55" height="90" x="-200" y="-300" fill="yellow"></rect>
<rect width="14.55" height="10" x="-250" y="-300" fill="pink"></rect>
<rect width="14.55" height="60" x="-300" y="-300" fill="orange"></rect>
</g>
</svg>
</div>
The thing you need to remember is that the rotate() transform will rotate an object about the coordinates (0,0), which in this case is the top left corner of the graph. Since the graph is 300p wide and 300px tall, rotating through 180° causes the graph to spin off beyond the top left corner. A translate transform can be used to readjust the coordinates so that the drawing appears within the viewbox again. Hopefully this illustration will explain:
Here's an updated JSfiddle with a few other fixes: http://jsfiddle.net/rhvP8/4/
An alternative to squeamish's solution is just to use the version of rotate that takes the rotation origin as well: rotate(angle x y).
Since you know your graph is 300x300, using rotate(180 150 150) works fine.
Demo here
Easy way: the scaleY() CSS function, defines a transformation that resizes an element along the y-axis (vertically).
svg {
transform: scaleY(-1);
}
View browser compatibility here: https://developer.mozilla.org/en-US/docs/Web/CSS/transform-function/scaleY()#browser_compatibility
I am trying to create an SVG graph with a fixed width to the left for the x axis labels and then a variable width to fill the remaining space for the actual graph results. The image below shows what I am trying to achieve. Thus far I have been unable to work out how to create the fixed width and variable width area.
Any help with this would be much appreciated!
Many thanks.
I would nest a couple of SVG elements inside your main like so:
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="500px" height="500px" >
<svg width="100">
<rect x="0" y="0" width="100%" height="100%" fill="red" />
</svg>
<svg x="100" >
<rect x="0" y="0" width="100%" height="100%" fill="blue" opacity="0.5"/>
</svg>
</svg>
NOTE I made the blue SVG element translucent so you can see that none of the red SVG was behind it.
I would also recommend using viewBox to give you more control over your drawing...
EDIT:
OK then I need to ask you a question about aspect ratios. If you take a square (width = height) and chop off a fixed portion from ONE side you no longer have a square and you have to think about what that means to your graph.
I believe this SVG will demonstrate more or less what you want:
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
width="600px" height="500px" viewBox="0 0 1200 1000">
<svg width="200">
<rect x="0" y="0" width="100%" height="100%" fill="red" opacity="0.5"/>
</svg>
<svg x="200" width="1000" height="1000" viewBox="0 0 100 100">
<rect x="0" y="0" width="100%" height="100%" fill="blue" opacity="0.5"/>
<rect x="80%" y="10%" width="10%" height="50%" fill="green"/>
<rect x="10" y="10" width="70" height="40" fill="gray"/>
</svg>
NOTE the aspect ratio (AR) of the outermost SVG's dimensions MUST match the outermost viewBox's AR but can have different values. Likewise for the second inner SVG, but now you are dealing with a slice of the total that is a true square and not a rectangle. You can vary the width and height of the outer most SVG and so long as you maintain the same AR all the code on the inside will not have to change - it will all scale automajically :)
Also note the different scales in use and the different value types I used for co-ordinates. Because my second inner SVG's viewBox set the user co-ordinates to 100 X 100, 10% and 10 amount to the same thing...
You could also set the preserveAspectRatio="none" or some other value to achieve different effects but for a graph I kinda think lining things up is important so I wouldn't.
One final note - you could (and in your case should) omit the viewBox on the inner SVG. That way the scale is consistent on all parts of your graph. I was just showing off the power of viewBox :)
It just occurred to me that you may prefer a rectangle to a square so here is a code sample for that:
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
width="800px" height="400px" viewBox="0 0 1600 800" >
<svg width="200">
<rect x="0" y="0" width="100%" height="100%" fill="red" opacity="0.5"/>
</svg>
<svg x="200" width="1400" height="800" viewBox="0 0 175 100" >
<rect x="0" y="0" width="100%" height="100%" fill="blue" opacity="0.5"/>
<rect x="80%" y="10%" width="10%" height="50%" fill="green"/>
<rect x="10" y="10" width="70" height="40" fill="gray"/>
</svg>
NOTE the width of the inner SVG is set to 175 so that the aspect ratio of 1400/800 is maintained.