I intend to create a system with two columns of text. There will be lines that indicate connections between some paragraphs on the left with some paragraphs on the right that appear when you mouseover them. Should I be using d3.js or is that overkill for this purpose?
EDIT: to be clear, some of the paragraphs on the left may not be aligned with the ones on the right so there would be crossing diagonal lines all along the middle.
Krzysztof is correct in that you might want to consider more complex interactions in the future. If you really just need a line, though, then D3.js is definitely overkill. Several commenters have suggested CSS borders, but I don't know if that approach meets your needs. If you want to draw straight lines between paragraphs, those lines won't, presumably, always be strictly horizontal or vertical. A more flexible option would be to add an absolutely positioned <div> into the page, hiding or showing it as appropriate. The <div> can have a 1px height and a background color to simulate a line, and it can be transformed using translation and rotation to connect any two arbitrary points.
No, use CSS instead. If you provide HTML code then we can guide you with CSS. Check out CSS borders: http://www.w3schools.com/css/css_border.asp
it depends on many factors. If you need d3.js only for 'draw lines/arrows' then I think this is overkill (d3.js is bigger then jquery). This looks like some simple task with basic tools. But if this is data presentation, which in future may be more complex, and when you use d3 for other charts, it will be fine.
Edit: because OP edit:
Look at this in semantic way. If this is data presentation then yes, If this is graphic effect then no.
No. D3 = "Data-Driven Documents". D3 uses SVG, and adding an SVG into your page just to draw a line is an absolute overkill. As a rule, you should take the simplest approach, hence a CSS border should do the job
border-bottom: 2px solid red;
for example.
Related
It doesn't look like LineBasicMaterial has any way that I can assign an alpha to it. But I would really like transparent lines. How do I do that? The whole line will have the same transparency, I guess that means it's a constant alpha?
I've created a CodePen demonstrating opacity in lines. Note that you must include transparency: true in the material properties, otherwise three.js will not consider opacity in its rendering formula.
Thank you #Marquizzo for kindly pointing me to this property, it's exactly what I was looking for.
I am trying to use SVGs as cutting templates for a cutting plotter.
I use lines with stroke-dasharrays for fold lines, however if a stroke from the dasharray starts from inside of a different line, the paper tears apart easily, as it creates a sort of crack: stroke-dasharray creates a crack
How can I control, where the dasharray starts?
Edit: "Invertig the dasharray" is probably a more suitable formulation for what I want to do.
is it possible to create a stroke with a dynamic width with SVG? I want to achieve a Calligraphy look like here, here or here.
Is this even possible? It seems customization of strokes in SVG is fairly limited. Even gradients in strokes seem to be non-trivial (see here).
There is a proposal to add into SVG standard a mechanism, that does exactly what you want:
http://www.w3.org/Graphics/SVG/WG/wiki/Proposals/Variable_width_stroke
http://lists.w3.org/Archives/Public/www-svg/2013May/0041.html
There's even an example implementation available here:
https://rawgit.com/birtles/curvy/master/index.html
It is, however, by no means official and we cannot be even sure it'll ever be.
Until then you'll need to stick to Bezier curves and object filling:
You can also use calligraphic fonts, for example - Tangerine available on Google CDN:
This approach requires less work since you don't need to draw everything from scratch, but then again, using third party fonts leaves you with little control over the final result.
You can't dynamically adjust the stroke of a path element. However you could draw a path, use a fill color on it instead of stroke, then double back upon the letters at a slight distance away from the original line.
Also, if you are using the SVG on the web then you can use css fonts on text elements. There are some pretty good cursive fonts that you can use for free... just check google web fonts.
I am trying to make a tool for my website which traces over Japanese characters, showing the stroke order etc.. something like this: http://www.chinesehideout.com/tools/strokeorder.php?c=5pel
I have made a bunch of SVG files in inkscape, which are made up of just curves, one for each stroke of the character. I have then imported these into Raphael using the raphael-svg-import: https://github.com/wout/raphael-svg-import
The SVGs are displaying perfectly, however I want to animate them.
My question is: Is there a way to take each path from the SVG in turn in Raphael, and then animate/stroke them? If so..how??
If you need any more info please say!
Thanks
EDIT: Perhaps I should clarify, when I say stroke I mean progressively draw the line, starting from the first point and ending at the last. At the moment it draws all paths simultaneously and draws the whole of each path at once.
The technique people use in svg for doing this is outlined in this answer. It's probably possible to adapt that to Raphaël, though the Raphaël documentation doesn't list stroke-dashoffset.
Raphaël has a method Element.getSubpath(from, to) that can be used to get only part of a path, that should probably also be an option.
Could someone please explain the CSS line-height attribute. It's like the only one I don't know.
The name is self-explanatory; defines the height of a line of text. This is one CSS property that's easier to show than to explain:
Look at my example here if you want to see the CSS and a working demo: http://jsfiddle.net/G59VX/.
It sets the height of a text line independent of the font-size. If you increase it, the lines will appear to be moving further apart, vertically.
The line-height is just that, it adjusts the full hight of a line of text, irregardless of font size. A healthy line height gives a paragraph of text a little breathing room and can make it much easier on the eyes. I usually do a line-height of 1.25em give or take.
Line-height defines the amount of space used for lines, most commonly in text. The primary use of line-height is making text readable. It is recommended to use unitless values of any other unit that isn’t static like the px unit.
A more detailed use is explained here.