d3 js charts

My personal blog is: www.ourd3js.comCSDN Blog for: blog.csdn.net/lzhlzzReprint please indicate the source, thank you.Layout, the literal translation is "arrangement, arrange". But that's not what it means in D3.There are many layout functions in D3, which are not intended to be laid out in the picture, but to convert the input data into the data that is easier to visualize in the

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

":", "Value": 3}, {"Source":, "target": 17 , "Value": 3}, {"source": "Target": 3}, {"source": "Target":, "Value": 3}, {"source": "Target": 2 0, "Value": 5}]} The data consists of two parts, dots (nodes) and edges (links), and the values of source and target represent the elements corresponding to the numeric subscript of the nodes array. Note that, regardless of the number of attributes of the nodes element, source and target temporarily point to a person's name, such as Source 1 target0 repr

, 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 recommended for various graphics. SVG indicates Scalable Vector Graphics. SVG defines ima

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 graphics. SVG means scalable vector graphics

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

= 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", "

"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

D3.js A simple primerD3 is a JavaScript framework: The main purpose is to visualize data,So he developed it under JavaScript, and currently has the D3.js 3.0 and D3.js 4.0 versions.The use of the method is very simple, 1. Download

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: "

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

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);

) {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

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),

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

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

If you want to know more about D3.js, welcome to http://www.ourd3js.com/discussion D3 is a javascript class library for Data-Driven Documents. If you do not know what javascript is, learn about javascript first. To put it simply, D3.js is mainly used to operate data. It

When I first approached the use of D3.js, one of the most confusing places was data (), enter (), and exit () . After I have been in touch for a while and have some understanding, simply say what I understand.data ()Let's look at an example: Body > P > P > P > P > P > P > Body >Execute code:D3.select ("Body"). SelectAll ("P"). data ([1, 2, 3])Here, Data() is used to bind to the selected DOM ele