how to use canvas to draw an organization chart like this, what ideas or cases can be used for reference. The structure is not fixed, and the structure should be rendered dynamically according to the data returned by the background.
how to use canvas to draw an organization chart like this, what ideas or cases can be used for reference. The structure is not fixed, and the structure should be rendered dynamically according to the data returned by the background.
first determine the final data structure, whether it is the tree structure you drew or the unordered graph structure. Then write the relationship between the data (that is, the connection mode) according to the back-end data. Later, you can use libraries such as d3. You can refer to the connection style of the tree view in D3.JS
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write a line chart with native JS, right-angled ones can be written, but now you need to change into a smooth curve, similar to: the inflection point is still at a right angle, is there any god who can provide the next solution ...
1. The designer designed the following graph, which is very similar to the force map, so that it can be implemented on the page, and each circle in the graph can click on the trigger event. 2, my current two ideas: (1) simple and rude html+css. In...
Today, I wrote an H5 that generates a poster on WeChat, in which a poster needs to get the user s avatar and draw it on canvas. The avatar was obtained, and the attribute crossOrigin = anonymous was added to the picture when loading. There was a pr...
Why is there only one context.beginPath (); in the sceneFunc method of Konva custom graphics? sceneFunc(context) { context.beginPath(); context.moveTo(200, 50); context.lineTo(420, 80); context.quadraticCurveTo(300, 100, 260, 170); ...
get the target image from the background canvas through the getImageData () method, which is square. Now you want to make the square into a jigsaw puzzle . s r ctx_ceng.beginPath(); ctx_ceng.moveTo(0, cY...
because you want to add a watermark to the image, you plan to use Canvas at the front end to draw the watermarked image onto the image selected by the user, and then send the processed image to the PHP s Apache server. the result can be saved as a ...
just came into contact with canvas, to learn to convert a picture into black and white. but can t succeed all the time. I m a little confused. Thank you. <body> <canvas width="500" height="500">< canv...
in native js, the drawImage method of canvas supports passing video elements. url: ask the gods, if you want to intercept the first frame of the video as a picture in WeChat Mini Programs, what can you do? ...
https: codepen.io wanroulin . ...
need to be able to doodle pictures on the phone, undo, empty, and can be saved as a new picture, download or send with write mindset exploded, ask for components! ...
given x coordinates, want to know the tilt angle of this blue line Real demand: draw words close to the curve and find a train of thought ...
I would like to ask how I get the RGBA value of a color in canvas and how it matches the color in the specified color array. I want to match the acquired colors with the colors in the array, and replace the acquired colors with similar colors! is th...
for example, which canvas library should be used to achieve an "enterprise relationship " effect similar to "Heavenly Eye check "? https: www.tianyancha.com co. ...
ask the gods how to achieve this kind of effect ...
the default level of pixijs drawing increases in turn, as shown in figure classify1,classify2,classify3 is drawn sequentially, and the level increases in turn. Now you want to raise the level of classify2 so that classify3 does not occlude classify2? . ...
After the putimagedata of canvas, the color value of rgba obtained by getimagedata is not correct < hr > let canvas = document.querySelector ( - sharpcanvas ); let cxt = canvas.getContext ( 2d ); let imageData = cxt.createImageData (2d2); for (...
canvas as the background, how to click div without passing the event to canvas The structure is as follows. Canvas writes a background, but there is a click monitor, changing the background with each click. There is also a click-to-refresh function in...
problem description the code is as follows: var dom = document.getElementById("photoCon1") html2canvas(dom, {useCORS: true}).then(canvas => { canvas DOM document.body.appendChild(canvas); }); the project framework uses vue,...
https: www.apple.com cn ipho. ask the gods how the transparent word effect of Apple is done I only found https: codepen.io dudleystor. this effect on the Internet. ...
problem description the location of the canvas screenshot is different from the actual generated base64 the environmental background of the problems and what methods you have tried I know two sets of dimensions for canvas: one is the size of the e...