chart js vs d3

", function (error, places) { //Insert grouping element var location = Svg.selectall (". Location"). Data ( places.location). Enter (). Append ("G"). attr ("Class", "Location"). attr ("Transform", function (d) {//Calculate the position of the callout point var coor = Projection ([D.log, D.lat]), return "translate (" + coor[0] + "," + coor[1] + ")";} "; Insert a circle location.append ("Circle"). attr ("R", 7);//Insert a picture location.append ("image"). attr ("x"). attr ("Y

to the data of two vertices.Well, with this data, we can make a drawing. We use the line in SVG to draw edges and draw vertices with circle in svg.var svg_edges = Svg.selectall ("line"). Data (Edges). Enter (). Append ("line"). Style ("Stroke", "#ccc"). Style (" Stroke-width ", 1); var color = D3.scale.category20 (); var svg_nodes = Svg.selectall (" Circle "). Data (nodes). Enter (). Append ("Circle"). attr ("R", "Ten"). Style ("Fill", function (d,i)

It is not difficult for d3.js to draw a vector chart. it is difficult to drag and drop it. In fact, jquery and easyui both provide the draggable drag and drop method, you only need to re-draw the line when dragging the drop event of a div. It is not difficult for d3.js to dr

) Pop-up dialog box, select Encoding (recommended with UTF8), field separator Select "Comma", text separator Select "Semicolon". Click "OK".(4) After saving successfully, open with Notepad, the result is as follows:In D3.js, a function that reads a CSV file only supports separating cells with commas, so be sure to save them like this.3. Read the CSV file in D3.js

": +, "target": +, "value": 3}, {"source": +, "target": +, "value": 3}, {"source": +, "target": $, "Value": 5}]}The data consists of two parts, point (nodes) and edge (links), and the value of source and target represents the element that corresponds to the value subscript of the nodes array.Note that regardless of how many attributes the nodes element has, both source and target temporarily point to the person's name, such as Source 1 Target0, which represents Napoleon and Myriel connectionsBy

Home is my personal blog: http://www.ourd3js.com/, csdn Blog home for: http://blog.csdn.net/lzhlzz/. Reprint please indicate the source, thank you.D3 's full name is (Data-driven Documents), as the name implies to know is a data-driven documentation JavaScript class Library. Suppose you don't know what JavaScript is.Learn about JavaScript first. To put it simply, d3.js is primarily used to manipulate data

want to learn more about D3.js's friends, welcome to http://www.ourd3js.com/discussionD3 's full name is (Data-driven Documents), as the name implies can be known as a data-driven documentation JavaScript class Library.If you don't know what JavaScript is, learn about JavaScript first. to put it simply, d3.js is primarily used to manipulate data by injecting li

Axis-Transverse D3.svg.axis var height=500,width=500,margin=25,offset=50,axiswidth=width-2*margin,svg;function createSVG () {Svg=d3.select (" Body "). Append (" SVG "). attr (" Class "," axis "). attr (" width ", width). attr (" height ", height);} function Renderaxis (scale,i,orient) {var axis=d3.svg.axis (). Scale (scales)//numeric scaling. Orient (Orient

Getting Started Good article: http://www.ourd3js.com/wordpress/?p=51D3.js and D3.min.js content, the latter is compressed, suitable for release, the former suitable for developers.1. Selection set (meets CSS selector requirements) primarily used with data bindingD3.select ()D3.selectall ()var BODY = D3.select ("Body")2

= defs.append ("LinearGradient"). attr ("id", "Linearcolor"). attr ("x1", "0%"). attr ("Y1", "0%") attr ("X2", "100%"). attr ("y2", "0%"), var stop1 = lineargradient.append ("Stop"). attr ( "Offset", "0%"). Style ("Stop-color", A.tostring ()), var stop2 = lineargradient.append ("Stop"). attr ("offset", "100%"). Style ("Stop-color", b.tostring ());And then add it to a rectangle, the code is as follows,Add a rectangle and apply the linear gradient var colorrect = svg.append ("rect"). attr ("x", "

My personal blog is: www.ourd3js.comCSDN Blog for: blog.csdn.net/lzhlzzReprint please indicate the source, thank you.This section describes how to make a conversation, such as mouse clicks, mouse slides, and so on.For a selected element, add a dialog operation with the following code:. On ("click", Function () {})A function can be a nameless function, or it can be a function of its own definition. The code above listens for mouse-click events, but when the mouse clicks on the selected object, fu

Advanced series of articles from last October began to write, dazzling is 4 months, want to summarize a year ago.First of all, Happy New Year. It's the year of the goat. Some time ago and friends chat, chat to 12 zodiac Why no cat, I mouth dear: not because of the 12 zodiac when the cat was late for the meeting?Oh, I do not know who this is to instill in my view. O (>﹏The advanced series of articles is divided into two parts, the article is written in parentheses: "

binding.Figure 5 In Figure 5, you can see that in the Enter section, D3 has reserved a location for the extra array items 12 and 15 for future operations. The Enter section also has an update variable that points to the update section. There are no extra elements in this binding, so there is no content in exit. If you replace the array with:var dataset = [3];The exit result 6 shows that the two P-elements are visible.Figure 6Thank you for reading.Doc

D3 is a visual JS library based on data manipulation, and the understanding of D3 can be discussed from the most basic display of loadable data. The basic framework of HTML is not much said, the first code to explain: Create a new test directory under which the demo and D3 two folders are created. Demo to store the H

the axes Orient () This function is used to specify the dividing point of the axis and the direction of the number in which to display. Bottom is displayed below the axis. The code for the axis is drawn as follows:[JavaScript]View PlainCopy Svg.append ("G") . Call (axis); Adding a g,g in SVG is an attribute in SVG, which is the group meaning, which represents a set of things, such as a group lines, rects, circles actually the axis is composed of these things. It also

D3 is widely used and is now one of the mainstream data visualization tools. Everyone in the first contact with the use of d3.js, the most difficult place is data (), enter (), exit () these several operations. After I have been in touch for some time and have some understanding, simply say what I understand. Data () Let's look at one example: Ex

"advanced-Chapter 2.0" code, allowing users to arbitrarily fix and unlock vertices, you can add code as follows: When the drag starts, the dragged vertex is set to fixed:var drag = Force.drag (). On ("DragStart", function (d,i) {d.fixed = true; Drag to set the object to be dragged to a fixed label_text_2.text ("Drag state: Start");})When the mouse double-clicks the vertex, unlocks the vertex:Nodes_img.on ("DblClick", function (d,i) {d.fixed = false;})4. ResultsIn the upper left corner, add t

the strs same element as the length tspan . Then, assign a x value to it and the dy property, and then specify the string contents. The code is as follows: Text.selectall ("Tspan") . Data (STRs). enter (). Append ("Tspan"). attr ("x", Text.attr ("x") ). attr ("Dy", "1em") . Text (function (d) {return D; The results are as follows: To this we are basically completed, the following to give you a complete sample code, there is a need to refer to. The f

Now let's start with d3.js to deal with the first simple question, and look at the following code:[html]View PlainCopy html> head> meta charset="utf-8"> title>helloworldtitle> head> body> P>hello World 1P> p>hello World 2P> Body> html> If you have studied html, you should know that two lines of text will be printed on the screen, such as:What if you want t

) {return d.x;}). attr ("Cy", function (d) {return d.y;}). attr ("R", function (d) {return D.R;}). On ("MouseOver", function (d,i) {d3.select (this). attr ("Fill", "Yellow");}). On ("Mouseout", function (d,i) {d3.select (this). attr ("Fill", "RGB (31, 119, 180)");});This is the code to draw the circle, see the previous sections of the friends must have been very familiar with it.The resulting diagram is as