cocos2d-x3.0 柱图

画柱图就是多画几个矩形之后放在一起，这个实现了基本功能还不够完善如果要用到项目中需要自己修改。

原文地址：http://blog.csdn.net/qqmcy/article/details/25984717

效果图：

使用类：

HelloWorldScene.cpp

#include "HelloWorldScene.h"#include "DJColumn.h"#include "DJColumnChart.h"USING_NS_CC;Scene* HelloWorld::createScene(){    // 'scene' is an autorelease object    auto scene = Scene::create();        // 'layer' is an autorelease object    auto layer = HelloWorld::create();    // add layer as a child to scene    scene->addChild(layer);    // return the scene    return scene;}// on "init" you need to initialize your instancebool HelloWorld::init(){    //////////////////////////////    // 1. super init first    if ( !Layer::init() )    {        return false;    }        Size visibleSize = Director::getInstance()->getVisibleSize();    Point origin = Director::getInstance()->getVisibleOrigin();//    auto top = Label::createWithSystemFont("hi放大师傅看到是非得失", "huawenxinsong", 20);//    top->setPosition(Point(visibleSize.width / 2, visibleSize.height / 2));//    addChild(top);                std::vector<float> temp;    temp.push_back(106);    temp.push_back(206);    temp.push_back(305);    temp.push_back(152);    std::vector<float> temp1;    temp1.push_back(73);    temp1.push_back(126);    temp1.push_back(55);    temp1.push_back(203);    std::vector<std::vector<float>> vec;    vec.push_back(temp);    vec.push_back(temp1);        std::vector<Color4B> colorVec;    colorVec.push_back(Color4B::RED);    colorVec.push_back(Color4B::ORANGE);            DJColumnChart* djColumnChart = DJColumnChart::create();    djColumnChart->setColumnValueVec(vec);    djColumnChart->setColumnColorVec(colorVec);    djColumnChart->setSize(Size(700, 700));    djColumnChart->setPosition(Point(200, 10));    djColumnChart->addDJColumnChart();    addChild(djColumnChart);                return true;}void HelloWorld::menuCloseCallback(Ref* pSender){#if (CC_TARGET_PLATFORM == CC_PLATFORM_WP8) || (CC_TARGET_PLATFORM == CC_PLATFORM_WINRT)MessageBox("You pressed the close button. Windows Store Apps do not implement a close button.","Alert");    return;#endif    Director::getInstance()->end();#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)    exit(0);#endif}

DJColumn.h柱图节点类

////  DJColumn.h//  ColumnChart////  Created by 杜甲 on 14-5-15.////#ifndef __ColumnChart__DJColumn__#define __ColumnChart__DJColumn__#include "cocos2d.h"#include "ui/CocosGUI.h"USING_NS_CC;class DJColumn :public ui::Layout{    public:    CREATE_FUNC(DJColumn);     CC_SYNTHESIZE(Color4B, _djColumnColor, DJColumnColor);    CC_SYNTHESIZE(float, _djColumnValue, DJColumnValue);    CC_SYNTHESIZE(Size, _djColumnSize, DJColumnSize);            virtual bool init();    void draw(cocos2d::Renderer *renderer, const kmMat4 &transform, bool transformUpdated);    void onDraw(const kmMat4 &transform, bool transformUpdated);    CustomCommand _customCommand;    };#endif /* defined(__ColumnChart__DJColumn__) */

DJColumn.cpp

////  DJColumn.cpp//  ColumnChart////  Created by 杜甲 on 14-5-15.////#include "DJColumn.h"bool DJColumn::init(){    bool bRet = false;    do {                CC_BREAK_IF(!ui::Layout::init());                                bRet = true;    } while (0);        return bRet;}void DJColumn::draw(cocos2d::Renderer *renderer, const kmMat4 &transform, bool transformUpdated){    _customCommand.init(_globalZOrder);    _customCommand.func = CC_CALLBACK_0(DJColumn::onDraw, this,transform,transformUpdated);    renderer->addCommand(&_customCommand);}void DJColumn::onDraw(const kmMat4 &transform, bool transformUpdated){    kmGLPushMatrix();    kmGLLoadMatrix(&transform);    CHECK_GL_ERROR_DEBUG();        DrawPrimitives::drawSolidRect(Point(0, 0), Point(getSize().width, getSize().height),Color4F(_djColumnColor.r, _djColumnColor.g, _djColumnColor.b, _djColumnColor.a));                 kmGLPopMatrix();}

DJColumnChart.h柱图类

////  DJColumnChart.h//  ColumnChart////  Created by 杜甲 on 14-5-15.////#ifndef __ColumnChart__DJColumnChart__#define __ColumnChart__DJColumnChart__#include "cocos2d.h"#include "ui/CocosGUI.h"USING_NS_CC;class DJColumnChart:public ui::Layout{    public:    CREATE_FUNC(DJColumnChart);    virtual bool init();        CC_SYNTHESIZE(std::vector<std::vector<float>>, _columnValueVec, ColumnValueVec);        CC_SYNTHESIZE(std::vector<Color4B>, _columnColorVec, ColumnColorVec);        void addDJColumnChart();        std:: string fontName;        double getMaxValue(std::vector<float> vec);            void draw(cocos2d::Renderer *renderer, const kmMat4 &transform, bool transformUpdated);    void onDraw(const kmMat4 &transform, bool transformUpdated);    CustomCommand _customCommand;    private:    float spaceRatio ;  //y轴间距系数    float leftRatioX;   //x轴左侧间距系数    int maxValue1;    //数据中的最大值        float  layerHeight1 ;  //图离底部的距离    };#endif /* defined(__ColumnChart__DJColumnChart__) */

DJColumnChart.cpp

////  DJColumnChart.cpp//  ColumnChart////  Created by 杜甲 on 14-5-15.////#include "DJColumnChart.h"#include "DJColumn.h"bool DJColumnChart::init(){    bool bRet = false;    do {                CC_BREAK_IF(!ui::Layout::init());                        fontName = "huawenxinsong";                                        bRet = true;    } while (0);    return bRet;}void DJColumnChart::draw(cocos2d::Renderer *renderer, const kmMat4 &transform, bool transformUpdated){    _customCommand.init(_globalZOrder);    _customCommand.func = CC_CALLBACK_0(DJColumnChart::onDraw, this,transform,transformUpdated);    renderer->addCommand(&_customCommand);    }void DJColumnChart::onDraw(const kmMat4 &transform, bool transformUpdated){    kmGLPushMatrix();    kmGLLoadMatrix(&transform);        spaceRatio = 0.06f;    leftRatioX = 0.1f;        std::vector<float> v0 = _columnValueVec.at(0);    std::vector<float> v1 = _columnValueVec.at(1);                double max1 = getMaxValue(v0);    double max2 = getMaxValue(v1);        double max  = max2;        if (max1 > max2) {        max = max1;    }         int maxValue2 = roundf(max / 100)* 100 ;  int  maxNum = maxValue2 / 10;                       DrawPrimitives::setDrawColor4B(0, 255, 255, 255);        float layoutHeight = getSize().height;    float layoutWidth = getSize().width;                float betweenDistance = layoutHeight / 13;    log("AAAAA%f",betweenDistance);        float tempbetweenDistance = betweenDistance;                    for (int i = 0; i < 11; i ++) {                Point bPoint = Point(44, tempbetweenDistance);        Point ePoint = Point(layoutWidth - 30, tempbetweenDistance);                DrawPrimitives::drawLine(bPoint, ePoint);                                ui::Text* text = ui::Text::create(StringUtils::format("%d",maxNum* i), fontName, 20);        text->setPosition(Point(18, tempbetweenDistance));        text->setTextHorizontalAlignment(TextHAlignment::CENTER);        text->setSize(Size(layoutWidth * 0.08, 20));        addChild(text);//        Label* labelY = Label::createWithSystemFont(StringUtils::format("%d",i), "huawenxinsong", 20);//        labelY->setAlignment(TextHAlignment::RIGHT);//        labelY->setPosition(Point(2, tempbetweenDistance));//        addChild(labelY);                tempbetweenDistance += betweenDistance;    }        kmGLPopMatrix();}void DJColumnChart::addDJColumnChart(){    float betweenDistance = getSize().height / 12;    log("betweenDistance = %f",betweenDistance);            std::vector<float> temp = _columnValueVec.at(0);      std::vector<float> temp1 = _columnValueVec.at(1);            Color4B c1 = _columnColorVec.at(0);    Color4B c2 = _columnColorVec.at(1);                for (int i = 0; i <temp1.size(); i++) {        DJColumn* djColumn = DJColumn::create();        djColumn->setSize(Size(20, temp1.at(i) * 53.846153/30));        djColumn->setDJColumnColor(c1);                //djColumn->setAnchorPoint(Point::ANCHOR_MIDDLE_BOTTOM);        djColumn->setPosition(Point(60 * i + getSize().width * 0.1 + 20, betweenDistance ));                addChild(djColumn);    }                for (int i = 0; i <temp.size(); i++) {        DJColumn* djColumn = DJColumn::create();        djColumn->setSize(Size(20, temp.at(i)  * 53.846153/30));        djColumn->setDJColumnColor(c2);                //djColumn->setAnchorPoint(Point::ANCHOR_MIDDLE_BOTTOM);        djColumn->setPosition(Point(60 * i + getSize().width * 0.1 , betweenDistance ));                addChild(djColumn);                                ui::Text* nameText = ui::Text::create("名字", fontName, 20);        nameText->setPosition(Point(60 * i + getSize().width * 0.1 + 25 , 40));        addChild(nameText);                                    }        }double DJColumnChart::getMaxValue(std::vector<float> vec){        double maxY = 8;        for (int i = 0; i < vec.size(); i++) {        float num = vec.at(i);        if (maxY < abs(num)) {            maxY = abs(num);        }    }    return maxY;}