d3 js donut chart example

piedata to compute the values available for the D attribute in one step. Create a function that calculates an ARC path var radius =; var arc = D3.svg.arc () . Innerradius (0) Add arcs The code above svg.arc() creates a function that computes an arc path, and this function allows you to calculate the value of the D property of the path, as shown below. Add Arc main.selectall (' G ') . Data (piedata). Enter () . Append (' pa

above code, we bound the converted data pie (dataset), there are 5 data, so we will add 5 g elements, the last line of code is the position of moving elements, the default starting position is the SVG draw box (0,0) coordinates, that is, the upper left corner. Note that this time the above code returns theChoose between 5 g elements at the same time. Next, for each G element, add path.Arcs.append ("path"). attr ("Fill", function (d,i) {return color (i);}). attr ("D", function (d) {return arc (d

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 rectangle

rectheight =; // the pixel height of each rectangle (including white space) Svg.selectall ("rect"). data (DataSet). Enter () . Append ("rect"). attr ( "x") . attr ("y",function(d,i) { return i * rectheight; }) . attr ("width",function(d) { return D; }) . attr ("height", rectHeight-2) . attr ("Fill", "steelblue");This code adds the same number of rectangles as the length of the dataset array, using the following statement:Svg.selectall ("rect")

, show, how to do? Insert the following code:var wx = d3.scale.linear () . Domain ([0, D3.max (DataSet)]) . Range ([0,500]);D3.scale.linear () is used to generate a scale bar of a linear function whose initial definition domain is [0, 1], the initial range range is [0, 1], where [] represents the scope. Now we set domain to [0,

My personal blog is: www.ourd3js.com The csdn blog is blog.csdn.net/lzhlzz. Please indicate the source for reprinting. Thank you. As mentioned above, the text is processed. In this section, D3.js is used as a simple column chart. There are many ways to create a column chart, such as using HTML div labels or svg. SVG is

for each region: DX and dy. Used to save offsets.2. Definition of the Drag eventEach time the drag event is triggered, we just need to get the mouse offset and add it to the original offset dx and dy.Then use D3.select (this) to select the current element and apply the transform to it to complete the panning operation.var drag = D3.behavior.drag (). Origin (function (d) {return D;}). On ("Drag", DragMove),

My personal blog is: www.ourd3js.comCSDN Blog for: blog.csdn.net/lzhlzzReprint please indicate the source, thank you.In the previous sections, all the text is processed, and this section will use D3.js to make a simple column chart.There are many ways to do a column chart, such as using an HTML div tag, or using SVG.It is recommended to use SVG to do all kinds of

(DataSet)). Enter () . Append ("G") . attr ("Transform", " Translate ("+outerradius+", "+outerradius+") ");In the above code, we bind the converted data pie (dataset). There are 5 of data. So 5 g elements are added. The last line of code is the position of the moving element, and the default starting position is the (0,0) coordinates of the SVG draw box, which is the upper-left corner. Note that this time the above code returns theSelect 5 g elements at the same time. Next, for each G elemen

blank gapBottom Line: The width of the bar is fixed, the total width-Strip width = blank width. Blank width depends on total width, total width depends on calculation expression (w/dataset.length)//Width and HeightvarW = 500;varH = 100;varbarpadding = 1;varDataSet = [5, 10, 13, 19, 21, 25, 22, 18, 15, 13, 11, 12, 15, 20, 18, 17, 16, 18, 23, 25 ];//Creating SVG elementsvarSVG = D3.select ("Body"). Append ("SVG"). attr ("Width", W). attr ("Height", h);

Colors varDataSet= [5, Ten, -, $, 6, -]; varPie=D3.layout.pie (); //pie chart Layout https://github.com/mbostock/d3/wiki/Pie-Layout varW= +; varh= +; varOuterradius=W/ 2; //Outer radius varInnerradius= 0; //Inner radius varArc=D3.svg.arc (). Innerradius (Innerradius). Outerradius (Oute

slowly reaches the last state of the transformation Elastic with bouncing reach finally state Bounce bouncing a few times at the last state. Called when the shape is:. Ease ("bounce")4.delay ()Specifies the time of the delay, which indicates a certain amount of time before the transition is initiated and the unit is the same in milliseconds. This function can specify a delay for the population. You can also specify a delay for an individual.For general designations, such as:. Trans