pdf generation using javascript - javascript

I have been trying to code some pdf-generator using svgToPdf. Now first I need to test the code. But there is not much documentation /demo over here. I am new to javascript. So I just want you guys to explain me how to use the code. The main idea is pretty simple though- it stores all the svg data in an array and as per the information associated with svg images it generates the pdf(places the images at proper position).
What is the meaning of the usage over here?( I can't understand this)
Can any of you give me a complete example or explain how to probably use it?
Okay! what I am trying to do? my_code. I wanted to see my whole page printed.(blue box+ hello world).

Related

Finding and trying to understand the technology used behind the scene

Sorry if the question is a bit out of place but don't know any better since i'm a complete beginner.
What i'm trying to say is let's take for example this site
https://exp-ion.lusion.co/
I am trying to "decode" what libraries and technologies are used behind the scene so i can learn more about them and try to replicate the same effects.
Is it in any way possible to get "hints" on how things are done?
Tried looking up the source code, tried inspecting various elements. I get that the scene is done using threejs library. What about the scroll ladder? What about the text?
Thank you in advance for any tips and tricks.
You can try Wappalyzer, they have a browser extension you can install that let's you see most of the technologies used in a site.

Suggestions for creating images-to-pdf converter using Javascript

I want to create a images-to-pdf converter using Javascript. And I want suggestions how I can create one.
Please Help!
I want user to select multiple images from there computer and combine all the images together and convert them in a single pdf.
Any kind of help will be appreciated.
Take a look at jspdf There is pretty good documentation to get you started as well.

Image slider algorithm

I want to create an image slider in Javascript (not in jquery) and fail to think about an algorithm to do this.
On the internet I found writing code examples but I do this job to help me understand how to think programs.
I thought a few steps that I think should be displayed.
1.make an array where we store all the images in a folder.
It is important that this be done dynamically,
For example, the code below images are added manually ... but what if we have 1,000 images? We can not add to all manual
var images = [
'/images/img1.jpg',
'/images/img2.jpg'
];
2.We use a "FOR" to browse all vector(images).
for(var i=0;i<images.length;i++)
{
//Here not figure out what should be written
}
3.It is important for each image to display two things.
Image name and date on which it was created.
This step I realize it should do.
4.You should also arrows left and right. I thought each arrow to make such a function where to write code
functions left()
{
//some code for running images
}
So much I think I managed to ... I hope to help me understand how to design a script.
Certainly not something complicated and many people here know to do it but I want to understand how to think such scripts.
I want to understand why we need to create objects and so on ... everything.
Thanks in advance!

calling a javascript function from SVG

I have a problem getting an svg file and javascript file talking. They are both referred to in this html document - http://www.trjps.co.uk/image_store_old/button_tests/button_tester_A.html. I want a button click on an svg element (the small circle) to trigger a js function (an animation using rapael).
I got something like this to work on a small demo
<path onclick="setAttribute('style','fill:gold'), top.popup()"... />
but it won’t work on this more complex one.
I know many answers cover this topic but, still, I’ve had no success. Help and pointers are welcome and needed. I might be barking up the wrong tree on how I'm doing this. Thank
I got it working. This was stopping it
window.onload = function() {..(all my raphael javescript)..}
My whole javascript was encased in this function, as the raphael examples suggested. I took it out and got results.
I've not done much js and have no idea why this matters but it does. Maybe I'll learn it's importance in due course but for the time being, "done it better than perfect" as a sizable social media company may or may not have printed on it's walls. Thanks for the helps.

Automatic Spacing for Flowchart

So I'm working on a project that will, in the end, generate a kind of flow chart using the Flickr api. You will supply a seed tag, and the program will use that seed tag to find other related Flickr pictures that have common tags...
I have all of the back end stuff up and running but I'm stumped on the formatting. Here is a screenie of what I would like it to look like...
Here's my question. Is there a good way of approaching the spacing of each branch? By this is mean, I would like to have a function where I could simply create a new node (or "branch") and specify which existing node I would like it to attach to. This is all good and fine, but I need to be able to automatically and intelligently place the new node on the page so it doesn't overlap any existing lines or nodes. I guess this is more of a general programming question as if I knew the process I could code it, but for those who are interested I am doing this in Javascript/HTML/CSS for the styling and maybe some PHP for the Flickr calls.
Feel free to ask any questions to clarify my rambling.
You could use a spring model between the nodes. Each node exerts a repelling force against every other node. Allow all the nodes to push against each other a certain number of times and you'll come up with a reasonable solution. You'll want to have a couple limits to make sure nodes don't go flying off into space and that you don't oscillate between a couple similar states.
Implementing it in Javascript/PHP is left as an exercise for the reader.
An alternative is to use a graph layout program such as GraphViz.
I look forward to seeing the results of your project. I agree with scompt about using graphviz.

Categories

Resources