地图info有关问题

mapinfo问题
我有一些点的经纬度要求是在MAPINFO中做一个图层，把这些经纬度坐标点画上去。请问我需要怎么操作  麻烦说详细点谢谢了我是新手没怎么用过mapinfo 谢谢说下详细点
------解决方案--------------------
void CJianguandaohangDlg::addjz(double xcoordinate,double ycoordinate,CString str)//在地图上显示基站的图标，传入函数为坐标
{

CMapXFeatureFactory FeaFac;
    CMapXFeature Feature;
    CMapXStyle  Style;
CString mysql;

if (drawnum>=1)
{
CMapXLayer layer = m_map1.GetLayers().Item("tempLayer");
    layer.SetEditable(TRUE);
    CMapXFeature fea;
     CMapXFeatures features;

while(layer.AllFeatures().GetCount()>0)

{
  features=layer.AllFeatures();
  fea =features.Item(1);
  layer.DeleteFeature(fea);
layer.Refresh();
}
}
else
{
CMapXLayer lyr = m_map1.GetLayers().CreateLayer("tempLayer");//第一个是临时图层名字，第二个是存储的图层名字
    m_map1.GetLayers().SetAnimationLayer(lyr); //设为动态图层

}


// m_map1.GetLayers().Remove("tempLayer");
    //设置地图的中心
    m_map1.SetCenterX(xcoordinate);
    m_map1.SetCenterY(ycoordinate);



    CMapXLayer Layer=m_map1.GetLayers().Item("tempLayer");
    FeaFac=m_map1.GetFeatureFactory();

    CMapXStyle style;
    style.CreateDispatch(style.GetClsid());

    //设置样式点风格。(节点式)
    //style.SetSymbolType(miSymbolTypeVector); //设置点的显示方式为一些向量
   // style.SetSymbolCharacter(39);//设置显示的符号。
    //style.SetSymbolVectorSize(10);//设置符号大小。
    //style.SetSymbolVectorColor(RGB(0,255,0));//设置符号颜色。
style.SetSymbolType(miSymbolTypeBitmap);   //设置点的显示方式为bit格式的图
style.SetSymbolBitmapName("TOWE1-32.BMP")   ;
    style.SetSymbolBitmapSize(15);

    VARIANT varStyle;
    varStyle.vt = VT_DISPATCH;
    varStyle.pdispVal = style.m_lpDispatch;

    //设置MapX不进行自动更新
    m_map1.SetAutoRedraw(FALSE);
    //设置图层可写
    Layer.SetEditable(TRUE);

    double current = xcoordinate;

    long currTime = GetTickCount();
    long oldTime = currTime;
    try
{

   CMapXPoint point;
   point.CreateDispatch(point.GetClsid());
   point.Set(current, ycoordinate);
   VARIANT varPoint;
   varPoint.vt = VT_DISPATCH;
   varPoint.pdispVal = point.m_lpDispatch;
   CMapXFeature feature = FeaFac.CreateSymbol(varPoint, varStyle);
   Layer.AddFeature(feature);  //加入Feature

地图info有关问题

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