not very advanced.Algorithm. In fact, the overall idea is as if we use a pen to draw images on paper. The key is the use of each method and parameter settings.We have already completed the customized pie chart and bar chart classes. We will apply these classes below.Use vs.net to create a web application named insight
= array ('#058DC7', '#50B432', '# ED561B', '# DDDF00', '#24CBE5', '#64E572 ', '# ff9655',' # FFF263 ',' #6AF9C4 '); 22} 23 24/* 25 * public method, set the bar chart color 26 * Array color Array, the element value is '# 058dc7' in this form 27 */28 function setBarColor ($ color) {29 $ this-> color = $ color; 30} 31 32/* 33 * create a pie
PHP drawing to generate pie chart method, PHP drawing generated pie
In this paper, we describe the method of generating pie chart of PHP drawing. Share to everyone for your reference. Specific as follows:
The function to be implemented here is the population distribution ra
(exception e ){// Todo auto-generated Catch BlockE. printstacktrace ();}Return data;}Public String getbingurl (httpservletrequest request, httpservletresponse response) {// create a pie chartString filename = NULL;Try {Pieplot3d plot = new pieplot3d (getdataset (); // generate a 3D pie chart// Plot. seturlgenerator (N
Pie chart | Line Chart | Column chart
This article will introduce you to the. NET how to use code drawing tables, just as you would with a chart generated in MS Excel. You can also sketch a DataGrid-like table.In NET, Microsoft has provided us with the drawing Class (System.
Use the echart pie chart to pass the time ., Echart pie pass time
The new company has just been idle for a few days. The leaders asked me to do some irrelevant work and optimize the report statistics !!! Previously, flash was used. Now we need to change it to echart. Well, I have never used it before. I studied it with my learning attitude. Writing something to p
In the related background system development, there is an essential module is the chart theme analysis. Through the chart analysis, it can show the development status of the business and the proportion of each business more intuitively, which is more advantageous for the company leaders to make corresponding decision. In the most recent project developed, it was useful to Java's echarts to develop its corre
Before you implement the data pie chart, make sure that you have a "db.mdb" database in the root directory of disk C, that the database is already set up, and that you have the data in the article "Implementing the Data bar diagram in the asp.net page." Here's a concrete step in asp.net to implement the data pie chart,
This evening I learned how to use the pycha module to create various office charts. This is very simple. In this article, I have used seven charts.
This module and the API address are: Release.
I. Code:
#! /Usr/bin/ENV Python #-*-coding: UTF-8-*-import Cairo import pycha. pieimport pycha. barimport pycha. scatterimport pycha. stackedbarimport pycha. line # Set the canvas def set_charvalue (): width, height = 600,600 surface = Cairo. imagesurface (Ca
Echarts is the Baidu team to create a pure Javascript Chart library, the official website download path is as follows:
Http://echarts.baidu.com/download.html
Characteristics of Echarts :
Rich chart types:Commonly used are line chart, histogram, scatter, pie, box, map for geo
First look at the effect:First, create a pie chart objectTo create a pie chart object using the class is PieChartView.h, the code is as follows:
Self.piechartview = [[Piechartview alloc] init];
Self.pieChartView.backg
Refer to this article http://www.cnblogs.com/chengxs/p/7857233.html
First, the basic column chart
Second, the basis of the line chart
Three, the basis of the pie chart
Four, the basis of the scatter chart
First, the basic column chart
3.1. Simple pie chart
Pie charts must use Defaultpiedataset to provide data for the chart.
DefaultPieDataset dataset = new DefaultPieDataset(); dataset.setValue("Spring Security", 100); dataset.setValue("jBPM 4", 200); dataset.setValue("Ext JS", 300); dataset.setValue("JFreeChart", 100);
This time we use SetValue to
wedges by using a marquee or by shift+-click action. The selection point is based on the cursor position when the mouse is released.
Since the pie chart has no axes, all of the settings in the pie axis attribute have no effect.
Pie charts are generally not suitable for displaying negative values. A bar
display, it is important to use antialiasing to create pie charts. antialiasing is the process by which jaged computer-generated lines in an image are smoothed. the antialiasing algorithm selects the color value of a particle pixel and replaces the adjacent pixels with color values that make the original pixel look less jarged.
FigureWhen strates the effects of antialiasing. Note that the black border ar
*3/5; Calculates the distance of the percentage text center to the centre, which can be adjusted as needed, pieR the diameter of the pie chart. As shown, float xa = (float) (CENR * MATH.COS (centerangle[i] * (math.pi/180))); float ya = (float) (CENR * Math.sin (centerangle [i] * (math.pi/180)); Middle xa and ya are the horizontal vertical distances from the text to the center of the circle. Cenx = GetWidth
Use the Chart. js chart library to create a beautiful Response Form and Chart. js chart library form
Basics
Chart. js is an open-source HTML5-based Chart library that allows you to easi
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