strokes | Let 's pretend d3 was written in ClojureScript

by dribnet JavaScript Version: Current License: No License

X-Ray Key Features Code Snippets(1)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | strokes Summary

strokes is a JavaScript library. strokes has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

D3 is a wonderfully functional library and seems well suited for playing nice with clojurescript, provided the usual data wrangling issues can be made to go away. This is achieved in strokes via JavaScript metaprogramming that provides a language polyfill for the clojure container classes so that they can be accessed natively by D3. This interop functionality is provided by the separate and growing mrhyde library. This repo also currently includes a number of standalone examples in the examples subdirectory. The venn-simple example is probably the easiest 'hello-world' program to use as template to start hacking your own projects.

Support

Quality

Security

License

Reuse

Support

strokes has a low active ecosystem.

It has 380 star(s) with 27 fork(s). There are 22 watchers for this library.

It had no major release in the last 6 months.

There are 3 open issues and 11 have been closed. On average issues are closed in 185 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of strokes is current.

Quality

strokes has 0 bugs and 0 code smells.

Security

strokes has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

strokes code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

strokes does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

strokes releases are not available. You will need to build from source code and install.

Installation instructions, examples and code snippets are available.

strokes saves you 637 person hours of effort in developing the same functionality from scratch.

It has 1481 lines of code, 0 functions and 70 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

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strokes Key Features

No Key Features are available at this moment for strokes.

strokes Examples and Code Snippets

Handle keypress events .

python

Lines of Code : 127

License : Non-SPDX (Apache License 2.0)

Copy

def _on_textbox_keypress(self, x):
    """Text box key validator: Callback of key strokes.

    Handles a user's keypress in the input text box. Translates certain keys to
    terminator keys for the textbox to allow its edit() method to return.

Community Discussions

Trending Discussions on strokes

How do I rotate, scale and translate on Html5 Canvas?

Mobile responsive design for complex process card

Event listeners not removed in React even with useEffect hook's return callback

Why does getline reads only the first stroke?

Canvas position in grid inaccurate

I cannot resolve the path from Storyboard.TargetProperty in my WPF app

How do you rotate canvas element to mouse position, using vanilla Javascript?

functions deleting the paint canvas

My DIV elements go diagonal instead of horizontal

Konva JS - How add Shapes custom with input value

QUESTION

How do I rotate, scale and translate on Html5 Canvas?

Asked 2021-Jun-14 at 02:31

I've tried for the last few days without too much success to rotate, scale and translate shapes on the canvas. I've read everything I could find on internet about similar issues but still I cannot seem to be able to adapt it to my own problem.

If everything is drawn on the same scale, I can still drag and drop. If I rotate the shapes, then the mouseOver is messed up since the world coordinates don't correspond anymore with the shape coordinates. If I scale, then it's impossible to select any shape. I look at my code and do not understand what I'm doing wrong.

I read some really nice and detailed stackoverflow solutions to similar problems. For example, user @blindman67 made a suggestion of using a setTransform helper and a getMouseLocal helper for getting the coordinates of the mouse relative to the transformed shape.

inverse transform matrix

I spent some time with that and could not fix my issue. Here is an example of what I tried. Any suggestion is appreciated.

...

ANSWER

Answered 2021-Jun-14 at 02:31

If I have time tomorrow I will try to implement the following to your code but I can provide you with a working example of how to get mouse collision precision on a rotated rectangle. I had the same struggle with this and finally found a good explanation and code that I was able to get to work. Check out this website

Now for my own implementation I did not use the method on that website to get my vertices. As you'll see in my code I have a function called updateCorners() in my Square class. I also have objects called this.tl.x and this.tl.y (for each corner).

The formulas are what I use to get vertices of a translated and rotated rectangle and the corner objects are what are used to determine collision. From there I used the distance() function (Pythagorean theorem), the triangleArea() function, and then the clickHit() function which I renamed to collision() and changed some things.

Example in the snippet below

Source https://stackoverflow.com/questions/67916648

QUESTION

Mobile responsive design for complex process card

Asked 2021-Jun-13 at 14:07

The design is for a website built on Angular . Have been using canvas along with html . canvas is used for building the dotted and solid arrows around circle . html is used for designing circles.

HTML :

...

ANSWER

Answered 2021-Jun-06 at 06:25

The canvas draws OK at viewport dimensions 1920 x 1080.

This snippet (which is vanilla JS for demo purposes) draws the canvas as given in the code in the question and then scales it and its position to fit the current viewport.

Source https://stackoverflow.com/questions/67846886

QUESTION

Event listeners not removed in React even with useEffect hook's return callback

Asked 2021-Jun-09 at 16:32

I have a component which registers a key event during initialization. This event triggers API call to fetch random Data.

...

ANSWER

Answered 2021-Jun-09 at 15:08

You are capitalizing incorrectly. You just change Keyup in removeEventListener to keyup.

Source https://stackoverflow.com/questions/67905710

QUESTION

Why does getline reads only the first stroke?

Asked 2021-Jun-05 at 11:40

My program should read commands and do them with one number. It should +, -, /, * the number, but it reads only the first stroke.

...

ANSWER

Answered 2021-Jun-05 at 11:40

You found out alread by yourself. You must either clear the std::istringstream or define a new one, even with the same name. So you coud write

Source https://stackoverflow.com/questions/67848419

QUESTION

Canvas position in grid inaccurate

Asked 2021-Jun-03 at 02:23

The x and y position of the grid on the canvas is being put 1 row to the left and 1 column above on some cells. I don't know what's causing this but it mostly happens in the middle to nearing the end of the grid.

...

ANSWER

Answered 2021-Jun-03 at 02:23

Multiple issues here...

First, the canvas has two sizes, the one of its buffer, set by its width and height attributes, and its rendering one (ruled by CSS).
Here both sizes are different, so the actual canvas image is being stretched by the CSS renderer, causing antialiasing and rounding imprecisions. See more here.

Then, stroke() does overlap on both sides of the provided coordinates, so with a lineWidth of 1, you need to add (or remove) a 0.5px offset so that a vertical or horizontal line fits correctly in the boundaries of a single pixel, otherwise once again you'll have antialising kick in. See more here.

Finally, your coordinates are not even rounded, so you will fall in between two pixel coordinates, once more adding antialiasing...

Here is an attempt to fix all that:

Source https://stackoverflow.com/questions/67793918

QUESTION

I cannot resolve the path from Storyboard.TargetProperty in my WPF app

Asked 2021-May-31 at 12:05

In my WPF application I have an animation of a certain element. The element to be animated looks like this.

...

ANSWER

Answered 2021-May-31 at 12:05

Notice in the working example you have a transparent brush set to the Stroke property.
But in the first example, nothing is set to this property.
Hence it is null.
And null has no properties to animate them.

You can explicitly set SolidColorBrush instance in this property, give this instance a name, and access its Color property directly.
It will be much easier than all these casts.

Example:

Source https://stackoverflow.com/questions/67762708

QUESTION

How do you rotate canvas element to mouse position, using vanilla Javascript?

Asked 2021-May-31 at 08:26

I am working on a mini canvas project and I have been trying to figure out how to rotate the canvas element (rectangle, circle) towards the mouse? I have search it on the web and the examples I see are people using libraries. I know that using a library would be so much easier, but it will take time to learn it. Is there a way to accomplish this using pure native JavaScript?

so far what I have is this:

...

ANSWER

Answered 2021-May-31 at 08:26

So after trying to combine your code and mine together here is what I came up with.

Source https://stackoverflow.com/questions/67748203

QUESTION

functions deleting the paint canvas

Asked 2021-May-29 at 17:14

I would really appreciate If someone could figure out what is wrong with my functions. I'm working on this simple paint program and I have Undo and Clear buttons. Undo is supposed to clear the last drawn line (the function deletes the last element of the array since the array consist of all the drawn lines on the canvas) and Clear just takes the canvas back to It's formal state (makes the board completely white). But every time I put any of those functions in the code my canvas just deletes Itself and I can't seem to figure out what's wrong. The function names are clear_canvas and undo_last. Any tips or solutions on how to fix or make another working example?

...

ANSWER

Answered 2021-May-29 at 17:14

You should use console.log. You should also be getting an error that helps identify your issue when you run the script.

Check this line in undo_last

Source https://stackoverflow.com/questions/67753923

QUESTION

My DIV elements go diagonal instead of horizontal

Asked 2021-May-28 at 16:07

I'm working on this simple drawing program using HTML CSS and JSC only. I have a problem where I can't fix where my div elements with the class color-field, they won't go horizontal (in line block one next to another). Instead they for some reason go diagonal and all the elements after them go like that. I want to make them go under the canvas one next to another but I can't seem to make it work. I tried all the methods I found online and nothing works. I'm not sure what is the problem really?

...

ANSWER

Answered 2021-May-28 at 16:04

It seems you forgot a closing / in the closing tags for div with the color-field class. As a result,

are parsed as two different div elements, the second inside the first. Instead of being drawn one next to the other, the divs are drawn inside each other, creating the vertical differences between them. Try this:

Source https://stackoverflow.com/questions/67741995

QUESTION

Konva JS - How add Shapes custom with input value

Asked 2021-May-27 at 15:21

I'm trying to add a custom element using buttons, when I add a new element and change the radius of the input, it changes the radius of all the circles in the square. I don't know what to do, I've already seen and revised my code and I couldn't find a solution.

I tried to find in the documentation what may be happening, I imagine the reason is that Scene func updates all objects. The big point is that if I add a circle when I create the layer it does not update when I add it via the button.

...

ANSWER

Answered 2021-May-27 at 15:21

I was cleaning your code and the error disappeared ...
Not exactly sure what was wrong, but it works, see my code below

Here are some things I found sticky in your code:

The arc you had context.arc(y1, x1, raio2 I think it should be x then y
I split the function into two one that collects the elements another that draws
The new function takes a few more parameters to control color and stroke width
I'm also drawing a couple of circles to show it working

Source https://stackoverflow.com/questions/67724161

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install strokes

To use strokes from your ClojureScript project, add this dependency to your project.clj:. Or to get started in this repo, try venn-simple or any of the other examples. Simply. Then open public/hello.html to see three circles in your web browser. Then to get hacking, you can then edit the venn-simple source file, save, and refresh your browser to see the changes.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

Find more information at: