I'd like to take the width/height of an element or symbol in Sketch and have that value displayed in a Text element on an artboard. As you scale the element or symbol, the Text element is updated on the artboard with the correct value.
There is no native option to do this kind of thing with Sketch App (v50.2).
Try making your own plugin for this.
Related
Suppose I have a svg path and a piece of text. I want to figure out where they intersect. I'm not really sure where to start, because the svg path's getBBox() function does not help.
Where should I start?
You have the text bounding box via getBBox(). Unfortunately, as you may have already discovered, that is not a tight bounding box of the glyphs. It includes the full descender and ascender heights of the font. However it should get you a reasonable approximation.
The next step is to determine where the path hits the bounding box. Getting a perfect mathematical solution is very hard, but there are iterative approaches that are much easier and give good results.
Path elements have a couple of DOM functions that can help: getTotalLength() and getPointAtLength(). You can step along the path from 0 to the path length, calling getPointAtLength(), until the point returned is inside the text bbox.
If you want to get more accurate and determine which character in the text touches the line, there are some DOM functions on SVG text elements that should be useful. For instance, `getExtentOfChar(n) returns the bounds of the nth character in the text.
I have a page where we are using SVG to render a sequence diagram. Some of the data represented has the potential to occasionally be very long, so I would like to limit the width of TSPAN elements and provide an ellipsis, while allowing the user to hover over the text and show the full text.
Initially I tried to use CSS in conjunction with the text-overflow property by setting the value to "ellipsis" which is the exact behavior I am looking for, but it doesn't have that functionality available (big bummer) is there any other way to limit the length of text and allow the full text to be shown on an action such as hover?
Create the tspan with the ellipsis text and then have a <title> element with the complete text e.g.
<tspan>Really really...<title>Really really long text</title></tspan>
I am using D3JS to create a graph. I would like to retrieve the size of the graph to use elsewhere in my code in javascript. When inspecting the element in firebug and going to the layout tab, it shows the dimensions in pixels which is what I am trying to grab programatically. However, trying to do something like grab the G by typing $('g').height() returns 0. Is there a special way I am supposed to grab the element to get its full rendered height and width?
The SVG way is to call element.getBBox(). That will give you an object with width and height properties.
So here is the problem:
I am trying to create dynamic buttons that have text. The text will be generated dynamically so the svg object doesn't know the size of the text. There are two things that I am looking to do and I hope that SVG will do this
First I want the left and right edge of the svg element to stay the same even if I scale the element horizontally
The problem is that I have to set a width on the svg otherwise it doesn't show up when I display the page. Also on the Home and blog buttons you can see that the edge is compressed. I want the edge to stay the same no matter how much text is in the element.
Also I can't seem to set the scale or width properly even with a javascript .getComputedTextLength()
Any help or a point in the right direction would be very helpful
Buttons that are sized to their text content is functionality that can be adressed with Raphael's getBBox()
The use of this js library means that you are implicitly using SVG or VML and this functionality is more easily addressed by referencing this JavaScript library
To see the getBBox() function in action you could visit the Autobox example here:
http://www.irunmywebsite.com/raphael/additionalhelp.php?v=2
How to change the height and width of textarea (or any html element) from javascript which is inside foreign object in svg.Moreover, can I drag an html elelment and drop on svg container by any mean (htm5 any hint) or atleast can I get the coordinates on svg during draging so that I can implement my own drag and drop. Thanks in advance
You appear to my eye to have at least two distinct questions. If I understand correctly, the first one is something like this: how can you write JavaScript within an SVG instance so that you can embed the SVG instance and have the JS control the embedding HTML? Do I have that right?
If so, the answer can be constructed from the parts of http://phaseit.net/examples/SVG4/c1.html and related examples. Briefly, write "window.top" to reach the HTML reference.
The same sort of reference gives access to HTML5 drag-and-drop, if that's what you're after.
Is that the level of answer you're after, or do you need an executable example?
LATER, AFTER MORE DISCUSSION: it appears that http://phaseit.net/examples/SVG5/embedding.svg is more like what you're after. Do I have that right, Arslan Ahson? What you should see when you display the SVG instance there is an SVG-coded elliptical button which, when pushed, toggles the appearance (background color and width) of a nearby embedded HTML textarea.