d3 js visualization

(). Radius (Innerradius); Svg.append ("G"). attr ("Class", "chord") . SelectAll (" Path "). Data (chord_layout.chords). enter (). Append (" path "). attr (" D ", Inner_chord) . Style (" Fill ", Function ( d) {return color20 (D.source.index);}). Style ("opacity", 1). On ("MouseOver", function (d,i) {d3.select (this). Style ("Fill", "Yellow");}). On ("Mouseout", function (d,i) {d3.select (this). Tra

.scale.linear (). Range ([height, 0]);The range of Y and y2 (i.e. like Sugao) should be the same. We put the tick tag on the right side of the y2 so that it looks more symmetrical:Defining axes var Xaxis = D3.svg.axis (). scale (X). Orient ("bottom"). Ticks (5); var yaxis = D3.svg.axis (). scale (Y). Orient ("left"). Ticks (5); var y2axis = D3.svg.axis (). sca

If you are interested in D3.js or data visualization, welcome to www.ourd3js.com for discussion. My blog homepage is: http://blog.csdn.net/lzhlzz, reprinted please indicate the source, thank you. In D3.js, there are two functions for selecting elements: select and selectAll

array and the selected CSS elements;The Enter () method defines when the array element exceeds the number of CSS elements already bound or selected, generates a new CSS element, and binds the data in the array with the new CSS element;The exit () method defines the extra array elements that are discarded when the array element exceeds the number of CSS elements that are already bound or selected.HTML>Head> Metahttp-equiv= "Content-type"content= "text/html; charset=utf-8" /> title>Testtit

[D3.js] SVG-Axes (coordinate axis)Axis D3 Axis components are designed for D3 quantitative, time, and ordinal scales. # D3.svg. axis () create a default axis. # The aixs (selection) axis applies to selection or transition. The selector must contain an svg or g element. For e

() when the corresponding element is too large (the number of bound data When the corresponding element is too large, it is usually necessary to delete the element so that it is equal to the number of bound data. The back is usually followed by the remove operation.Here's a look at the specific usage:[JavaScript]View PlainCopy The above code uses the variable name update and enter respectively to represent the respective part, the result of the above code is:The resu

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)

) .. attr(' height ', function(d) { return - yscale(yaccessor(d)); }) You can put a constant or function in every attr, this time you use the scale, you give your scale a y-axis value of the parameter, he returned to you a corresponding length.The same x and y coordinates can be calculated as well. . attr(' x ',function (d) { return XScale(xaccessor(d)); }) . attr(' y ', function (d) { return yscale(yaccessor(d)); }) If y

": +, "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

First make a dynamic column chart (the version of D3.js used here is V3, some functions will change with V4)：Code:Now add the mouseover and mouseout events like this dynamic column chart.Practice:1. Remove the style from the style. MyText class that adds a color attribute directly when adding a rectangle2. Add an event when adding a rectangle...//adding rectangles and text elements varrectpadding = 4; va

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

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