Example of using ECharts. js to draw a K-line chart, echarts. js
Preface
Recently, there is a statistical project to be done. The data at the front end needs to be displayed in charts. I searched the internet and found several statistical libraries.
MSChart
This is the built-in control in Visual Studio. It is easy to use, but the data must be bound in the background.
Ichartjs
Is an HTML5-based graphics libr
, 0x90, 0x90); $navy = Imagecolo Rallocate ($img, 0x00, 0x00, 0x80), $darknavy = Imagecolorallocate ($img, 0x00, 0x00, 0x50); $red = Imagecolorallocate ($img, 0xFF, 0x00, 0x00); $darkred = Imagecolorallocate ($img, 0x90, 0x00, 0x00); $black =imagecolorallocate ($img, 0x00,0x00,0x00 );
Here we define more of the required colors
3, fill area color, can be easily understood as the background color of the fill picture, using the Imagefill function
Imagefill ($img, 0,0, $white), where 0 0 indicates
This article describes how to implement the effect of a three-dimensional pie chart in the "catering system" developmentCodeAnd the attached example, I believe that friends in need can easily use! Project, as follows:
The system. Drawing. piechart. piechartcontrol control is implemented. The piecharthelper class is as follows:
Code
Code highlighting produced by Actipro CodeHighlighter (freeware)h
The case illustrates how to create a compliance chart by setting an axis overlap. A compliance chart can visually reflect whether the data meets the required standards. For example, the standard for compliance is 200, and when the totals for each month are below 200, they appear below the axis and above 200, just above the axis.
A compliance
Implementation example of a columnar topic chart
Http://bbs.esrichina-bj.cn/esri/viewthread.php? Tid = 7613// Obtain the layer ID of the topic...........Int layerid = 3;// Obtain the attribute name list of the topic graph analysis element.String [] fieldname = new string [2];Fieldname [0] = "pop1990 ";Fieldname [1] = "pop1999 ";
// Obtain the layer object (featurelayer) of the topic graph analysis)Agslocal
Pie chart generation class and example
The pie chart is automatically generated based on input parameters.
/*
* Generate pie slices
*/
Class PieChart {
Private $ center; // pie-shaped midpoint
Private $ width; // pie diameter
Private $ image; // graphic object
Function _ construct ($ width,
Example of vue. js + Echarts Development Chart zoom-in and zoom-out function, vue. jsecharts
Recently, I used echarts to develop the chart function of a system. I first stated that my previous ext. js and ext. js have their own set of components for the chart, which is also very convenient to use. However, because ext.
Simple Chart Example
It's easy to use Oh, that's it:
Building Objects with Server.CreateObject
Set chart Properties
Call the Savechart method to save to the hard disk or send directly with Response.BinaryWrite chart.image
The following code is a demonstration of how to create a column chart:
Ctbar = 1
Cnone = 0
Cgradie
(chartobject.name)Savepath = Os.path.join (self. Exportpath,imagename)Print SavepathChartObject.Chart.Export (savepath,self. ImageType)def _get_filename (self,chartname):"""Replaces white spaces in self. Workbookfilename with the value given in self. ReplacewhitespacecharIf self. Replacewhitespacechar is a empty string then self. Workbookfilename is left as is"""If self. Imagefilename = = ':Self. Imagefilename = = ChartnameIf self. Replacewhitespacechar!= ':Chartname.replace (", Self.") Replace
Echarts Home: http://echarts.baidu.com/index.htmlEcharts-2.1.8:http://echarts.baidu.com/build/echarts-2.1.8.zipEcharts Official Example: http://echarts.baidu.com/doc/example.htmlEcharts Official API Document: Http://echarts.baidu.com/doc/doc.htmlEcharts Series-Histogram (bar chart) Example 11, project structurejs folder: After downloading the echarts, decompressi
HTML5 Canvas is an example of the cool big wave Progress Chart (with demo), html5canvas
This article introduces the HTML5 Canvas progress chart, which is as follows:
As you can see, this article is to achieve the above effect.
Recently, AlloyTouch wants to write a cool loading effect for pull-down and refresh. Therefore, the big wave progress
The following is an example of using html5 to draw a line chart. I think it is quite good. I will share it with you now. I would also like to give you a reference. Let's take a look at it with xiaobian.
Example code for creating a line chart using html5 _ html5 tutorial skills
Canvas> script (function
Code example for php to draw a pie chart
// Variable definition: the angle of the elliptical arc
Define ("ANGLELENGTH", 3 );
/**
* Draw an image
* @ Param $ title the title of a 3D image
* @ Param $ data array displayed by dataArr
* @ Param $ labelArr refers to the tag classification array of the corresponding data.
* @ Param $ colorArr: ar
Example of using the GD library to create a round pie chart in PHP, GD round
In PHP, there are some simple image functions can be used directly, but most of the images to be processed, you need to compile PHP with the GD library. In addition to installing the GD library, additional libraries may be required in PHP, depending on which image format you need to support. GD Library can be downloaded in http://
This article mainly introduces the example of using the GD Library in PHP to create a circular pie chart. the code example provided in this article implements a sector statistical chart. For more information, see PHP, some simple image functions can be used directly, but most of the images to be processed need to be co
Variable definition, angle size when drawing an elliptical arc
Define ("Anglelength", 3);
/**
* Draw Pictures
* @param $title title of 3D chart
* @param array of data $dataArr displayed
* @param $labelArr array of label categories for the corresponding data
* @param $colorArr An array of drawing colors
* @param the base width of the $a canvas
* @param the base height of the $b canvas
* @param $v height
PHP implementation of drawing 3D sector charts and image scaling examples,
1, using the PHP GD library function to draw 3D fan chart
Effect:
2. Zooming the picture
Original sizeSize after scaling
Effect:
http://www.bkjia.com/PHPjc/887749.html www.bkjia.com true http://www.bkjia.com/PHPjc/887749.html techarticle PHP Implementation of drawing 3D sector chart and image scaling
[DevExpress] ChartControl bar chart example, controlchart
Key code:
Using System; using System. data; using System. windows. forms; using CSharpUtilHelpV2; using DevExpress. xtraCharts; namespace DevExpressChart {public partial class winProduct: Form {public winProduct () {InitializeComponent ();} static readonly string AccessFullPath = string. format (@ "{0} \ Northwind. MDB ", AppDomain. currentDomain. b
Python xlsxwriter library to generate a chart application example, pythonxlsxwriter
There may not be many people using xlsxwriter, but after using it, you will feel that its function makes you sigh, except that you can generate the excel as required.
You can also add various images, such as bar charts, pie charts, and line charts.
Create an xlsx file and add data
Official documents: http://xlsxwriter.readth
This article mainly introduces the example of using the GD library in PHP to create a circular pie chart. The code example provided in this article implements a sector statistical chart. For more information, see PHP, some simple image functions can be used directly, but most of the images to be processed need to be co
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