ProEssentials第200例SimplePolar Chart极坐标图表，使用DLL单文档VC6.0实现

环境配置跟前面一样，这里不在介绍，只修改绘制函数。本例程序下载源代码下载链接

void CPEView::CreateSimpleSGraph(){//! Right button click to show popup menu. ////! Double Click to show customization dialog. ////! Left-Click and drag to draw zoom box. Use popup memu or 'z' to undo zoom. // // Simple example show the basics of a polar object. //// 极坐标图既包含Y轴数据(弧长)也包含X轴数据(弧度). //RECT rect;GetClientRect( &rect );// 构造对象，Polar_Graph //m_hPE = PEcreate(PECONTROL_PGRAPH, WS_VISIBLE, &rect, m_hWnd, 1001);PEnset(m_hPE, PEP_nSUBSETS, 2);//2个子集PEnset(m_hPE, PEP_nPOINTS, 360);//每个子集360个点int p;float f1, f2;for (p=0; p<360; p++){f1 = (float) p; //p°f2 = (float) 150 * sin((double) p * 0.054F);//弧长=150*sin转化为弧度//f2= (float)300;//弧长PEvsetcellEx(m_hPE, PEP_faXDATA, 0, p, &f1);//第1个子集第p个点PEvsetcellEx(m_hPE, PEP_faYDATA, 0, p, &f2);}for (p=0; p<360; p++){f1 = (float) p;f2 = (float) 150 * sin(((double) p * 0.044F)) * 2;//第2个子集第p个点PEvsetcellEx(m_hPE, PEP_faXDATA, 1, p, &f1);PEvsetcellEx(m_hPE, PEP_faYDATA, 1, p, &f2);}PEnset(m_hPE, PEP_nPLOTTINGMETHOD, PEGPM_LINE);PEnset(m_hPE, PEP_nALLOWZOOMING, 1);PEszset(m_hPE, PEP_szMAINTITLE, TEXT("极坐标图表"));//主标题PEP_szMAINTITLEPEszset(m_hPE, PEP_szSUBTITLE, TEXT("")); //无副标题float ftmp = .9F;PEvset(m_hPE, PEP_fFONTSIZELEGENDCNTL, &ftmp, 1 );PEnset(m_hPE, PEP_bPREPAREIMAGES, TRUE);PEnset(m_hPE, PEP_bCACHEBMP, TRUE);PEnset(m_hPE, PEP_bFOCALRECT, FALSE);// 设置线型int nTypes[] = { PELT_MEDIUMSOLID, PELT_MEDIUMSOLID };PEvset(m_hPE, PEP_naSUBSETLINETYPES, nTypes, 2);// 设置点型int nPTypes[] = { PEPT_DOTSOLID, PEPT_PLUS };PEvset(m_hPE, PEP_naSUBSETPOINTTYPES, nTypes, 2);// 子集合颜色值DWORD dwArray[2] = { PERGB(128, 198,0,0), PERGB(128, 0, 198, 0) };PEvset( m_hPE, PEP_dwaSUBSETCOLORS, dwArray, 2);//子集合标签 labelsPEvsetcell( m_hPE, PEP_szaSUBSETLABELS, 0, TEXT("Signal #1" ));PEvsetcell( m_hPE, PEP_szaSUBSETLABELS, 1, TEXT("Signal #2" ));double dnull = -99999.0F;PEvset(m_hPE, PEP_fNULLDATAVALUEX, &dnull, 1);PEvset(m_hPE, PEP_fNULLDATAVALUE, &dnull, 1);// Set Various other features //PEnset(m_hPE, PEP_bFIXEDFONTS, TRUE);PEnset(m_hPE, PEP_bBITMAPGRADIENTMODE, TRUE);PEnset(m_hPE, PEP_nQUICKSTYLE, PEQS_MEDIUM_NO_BORDER);PEnset(m_hPE, PEP_bSIMPLEPOINTLEGEND, TRUE);PEnset(m_hPE, PEP_bSIMPLELINELEGEND, TRUE);PEnset(m_hPE, PEP_nLEGENDSTYLE, PELS_1_LINE);PEnset(m_hPE, PEP_nZOOMSTYLE, PEZS_RO2_NOT);PEnset(m_hPE, PEP_nPOINTSIZE, PEPS_SMALL);PEnset(m_hPE, PEP_nTEXTSHADOWS, PETS_BOLD_TEXT);PEnset(m_hPE, PEP_bMAINTITLEBOLD, TRUE);PEnset(m_hPE, PEP_bSUBTITLEBOLD, TRUE);PEnset(m_hPE, PEP_bLABELBOLD, TRUE);PEnset(m_hPE, PEP_bLINESHADOWS, TRUE);PEnset(m_hPE, PEP_nFONTSIZE, PEFS_MEDIUM);PEnset(m_hPE, PEP_nGRADIENTBARS, 8);PEnset(m_hPE, PEP_nDATASHADOWS, PEDS_SHADOWS);float f = 1.2F;PEvset(m_hPE, PEP_fFONTSIZEGNCNTL, &f, 1);PEnset(m_hPE, PEP_nIMAGEADJUSTBOTTOM, 100);// Improves metafile export //PEnset(m_hPE, PEP_nDPIX, 600);PEnset(m_hPE, PEP_nDPIY, 600);// Set Demo's RenderEngine to Gdi Plus // //CMDIFrameWnd* pWnd = (CMDIFrameWnd*) AfxGetApp()->GetMainWnd();//pWnd->SendMessage(WM_CHANGE_METAFILE, PEPLAYMETAFILEGDIPLUS );       }/************************************************************************//* 函数名：GetRandom() * 参数 ： *a [a,b]中a *b [a,b]中b * 返回值 *  int [a,b]间的随机整数 * * 作者 ：Archie * 时间 ：2012年8月27日*//************************************************************************/int CPEView::GetRandom(int a, int b){int i = (rand()%(b-a+1))+a;return i;}