Objective
The specific implementation is as follows:
The first line chart of the preface is implemented. 1) Custom view implementations. 2) the key technology implementation. 3) method invocation. 4) The effect shows the second trend graph realization. 1) Import Djchart third-party libraries. 2) the axis parameter setting. 3) method invocation. 4) effect shows the third line drawing implementation. 1) Import the Zxquartz third-party library. 2) Customize the view to draw various graphics. 3) method invocation. 4) The effect shows the implementation of the IV histogram. 1) Import the Zxquartz third-party library. 2) the axis parameter setting. 3) method invocation. 4) effect display of all kinds of graphic implementation. 1) Import Djchart third-party libraries. 2) Key technologies to achieve. 3) method invocation. 4) effect shows sixth pie chart implementation. 1) Key technology implementation. 2) method invocation. 3) Effect Presentation Summary Preface
People often in the process of doing the project, will encounter some drawing, for example, we in the weather forecast, statistics this week's weather conditions change, then we need to use a line chart to do the statistics (figure I); For example, we may use histogram and so on when we count the employment rate.
First of all, let's see how this line can be achieved? Now let's take a look at the whole.
Now let's take a look at the different kinds of graphs.
1) Line chart
2) Trend Chart
3) Draw a line chart
4) Bar Chart
5) Various graphics
6) Pie chart
Well, look at the above various line chart, we must be very concerned about how these line chart is finished drawing, the following we will look at the specific implementation of the various graphs.
The first line chart implementation 1) Custom view
2) Key Technology implementation
3 Method invocation
4) Effect display
Second trend Graph implementation 1) Import Djchart third-party libraries
2) axis parameter setting
3) method invocation
4) Show
Third draw line diagram implementation 1) Import Zxquartz third-party libraries
2) Customize the view to draw a variety of graphics
3) method invocation
4) Show
The IV histogram implementation 1) Import Zxquartz third-party libraries
2) Key Technology implementation
3) method invocation
4) Show
Six pie chart implementation 1) key technology implementation
2) method invocation
3) Show
Summarize
It looks very simple, all the drawing methods are concentrated, in the future we need to use it will not be so troublesome.
Download Program source code: http://download.csdn.net/detail/baihuaxiu123/9498733
Blog Address: http://blog.csdn.net/baihuaxiu123
Jane Book Address: Http://www.jianshu.com/users/0873ab6768a6/latest_articles
Various polylines in IOS-curves-collection of graphic drawing methods (line charts-Chart of graphs-histogram-dynamic graphs-shape diagrams-drawing, scribing)