qt環境下Mapx組建的編程---------regoin

#include "widget.h"
#include "ui_widget.h"

#include <QPushButton>
#include <QToolBar>
Widget::Widget(QWidget *parent) :
    QWidget(parent),
    map(nullptr),
    pCMapXPoint(nullptr),pCMapXPoint1(nullptr),pCMapXPoint2(nullptr),
    pCMapFeaFactory(nullptr),
    pCMapXFeature(nullptr),
    pCMapStyle(nullptr),
    pCMapLayers(nullptr),
    pCMapLayer(nullptr),

    pCMapLine(nullptr),
    pCMapPoints(nullptr),
    pCMapParts(nullptr),

    pCMapArc(nullptr),

    pCMapXFeatureRegoin(nullptr),
    //坐標的變化
    pCMapXCoordSys(nullptr),
    ui(new Ui::Widget)
{
    ui->setupUi(this);
    this->resize(1000,800);

    QPushButton *pButton = new QPushButton("tool",this);
    pButton->resize(70,23);

    //建立一個地圖
    map = new MapSpace::Map("",this);
    //設置大小屬性
    map->move(QPoint(10,25));
    map->resize(QSize(size().width()-20,size().height()-20));

    map->SetCurrentTool(MapSpace::ToolConstants::miPanTool);//鼠標工具
    map->setProperty("MousewheelSupport",2);//支持滾輪
 /* 顯示一個小圖標（旗子模樣）*/
    pCMapLayers = map->Layers();
    pCMapLayers->AddGeoSetLayers("C:/mapx/MapX4/Maps/Captial.gst");
    pCMapLayer = pCMapLayers->CreateLayer("test");


    pCMapFeaFactory = map->FeatureFactory();



    //划一個區域。regoin
    pCMapXFeatureRegoin = pCMapFeaFactory->CreateRegion();//創建一個區域feature
    pCMapPoints = new MapSpace::CMapXPoints;
    pCMapPoints->setControl("MapX.Points.4");
    pCMapParts = pCMapXFeatureRegoin->Parts();
    pCMapXPoint = pCMapPoints->AddXY(120.07372, 29.35792);
    pCMapXPoint1 = pCMapPoints->AddXY(120.07270, 29.35780);
    pCMapXPoint2 = pCMapPoints->AddXY(120.07000, 29.35000);

    pCMapStyle = pCMapXFeatureRegoin->Style();
    //pCMapStyle->setControl("Mapx.Style.4");
    //pCMapStyle->SetRegionBackColor(200);
    //pCMapStyle->SetLineColor(117);
    pCMapStyle->SetRegionBorderWidthUnit(MapSpace::StyleUnitConstants::miStyleUnitTenthsOfPoint);
    pCMapStyle->SetRegionBorderWidth(35);//邊界線條寬度，與上方函數一起使用
    pCMapStyle->SetRegionBorderColor(243);//邊界顏色
    pCMapStyle->SetRegionColor(123);//背景顏色
   // pCMapStyle->SetRegionStyle(MapSpace::miPenSolid);
    pCMapStyle->SetRegionPattern(MapSpace::miPatternCross);
    //pCMapStyle->SetRegionTransparent(true);//用於至少兩個圖元之間

    pCMapParts->Add(pCMapPoints->asVariant().value<IDispatch*>());
    pCMapLayer->AddFeature(pCMapXFeatureRegoin->asVariant().value<IDispatch*>());
    map->ZoomTo(200,120.06272, 29.35522);
}
在加上圓形的圖元

void MainWindow::CMapxInit(){
    widget = new QAxWidget(this);
    widget->setControl(QString::fromUtf8("{9D6ED188-5910-11D2-98A6-00A0C9742CCA}"));
    widget->resize(size().width(),size().height());

    pCMapX = new CMapX(widget->asVariant().value<IDispatch*>());
    pCMapXLayer = pCMapX->Layers()->CreateLayer("aaa");

    pCMapXFeatureFactory = pCMapX->FeatureFactory();
    pCMapXFeaturePoint = pCMapXFeatureFactory->CreateSymbol();

    pCMapXPoint = pCMapXFeaturePoint->Point();
    pCMapXPoint->Set(120.06872,29.35692);
    //算出外接矩形的兩個角坐標，一個在X軸上，一個在Y軸上

    pCMapXFeatureCircularRegion = pCMapXFeatureFactory->CreateCircularRegion(miCircleTypeMap,pCMapXPoint->asVariant().value<IDispatch*>(),1,0,1000);
    pStyle =  pCMapXFeatureCircularRegion->Style();
    pStyle->SetRegionColor(QColor(255,0,0));

    pCMapXLayer->AddFeature(pCMapXFeatureCircularRegion->asVariant().value<IDispatch*>());

    pCMapX->ZoomTo(10,120.06872,29.35692);
}