pie_graph.cpp
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上传日期:2007-06-13
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- /*
- * ===========================================================================
- * PRODUCTION $Log: pie_graph.cpp,v $
- * PRODUCTION Revision 1000.1 2004/06/01 20:49:32 gouriano
- * PRODUCTION PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.5
- * PRODUCTION
- * ===========================================================================
- */
- /* $Id: pie_graph.cpp,v 1000.1 2004/06/01 20:49:32 gouriano Exp $
- * ===========================================================================
- *
- * PUBLIC DOMAIN NOTICE
- * National Center for Biotechnology Information
- *
- * This software / database is a "United States Government Work" under the
- * terms of the United States Copyright Act. It was written as part of
- * the author's official duties as a United States Government employee and
- * thus cannot be copyrighted. This software / database is freely available
- * to the public for use. The National Library of Medicine and the U.S.
- * Government have not placed any restriction on its use or reproduction.
- *
- * Although all reasonable efforts have been taken to ensure the accuracy
- * and reliability of the software and data, the NLM and the U.S.
- * Government do not and cannot warrant the performance or results that
- * may be obtained by using this software or data. The NLM and the U.S.
- * Government disclaim all warranties, express or implied, including
- * warranties of performance, merchantability or fitness for any particular
- * purpose.
- *
- * Please cite the author in any work or product based on this material.
- *
- * ===========================================================================
- *
- * Authors: Andrey Yazhuk
- *
- * File Description:
- *
- */
- #include <ncbi_pch.hpp>
- #include <gui/graph/pie_graph.hpp>
- #include <math.h>
- BEGIN_NCBI_SCOPE
- CPieGraph::CPieGraph()
- {
- SetColor(CGlColor(0.0f, 0.0f, 0.0f));
- }
- bool CPieGraph::SetDataSource(IGraphDataSource* pDS)
- {
- IPieDataSource* pPieDS = dynamic_cast<IPieDataSource*>(pDS);
- bool bOk = pPieDS!= NULL;
- CGraphBase::SetDataSource(bOk ? pDS : NULL);
- CalculateLimits();
- return bOk;
- }
- void CPieGraph::Render(CGlPane* pPane)
- {
- _ASSERT(pPane);
- IPieDataSource* pSource = GetPieDataSource();
- if (pPane && pSource) {
- pPane->OpenOrtho();
- try {
- INumericArray* pValues = pSource->GetValueArray();
- IColorArray* pColors = pSource->GetColorArray();
- //IStringArray* pLabels = pSource->GetLabelsArray();
-
- int N = pValues->GetSize();
- double Sum = 0.0;
- for (int i =0; i<N; i++ ) {
- Sum += ::fabs(pValues->GetElem(i));
- }
- // choose number of segments
- double D = 0.5 *(pPane->GetViewport().Width() + pPane->GetViewport().Height());
- double MinD = min(pPane->GetViewport().Width(), pPane->GetViewport().Height());
- double SegL = sqrt(MinD); //pixels
- double NSegmPerDegree = 3.14 * D / (SegL * 360);
- double kA = 360.0 / Sum;
- double aStart = 0.0;
- glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
- GLUquadricObj *pQObj = gluNewQuadric();
- for (int i =0; i<N; i++ ) {
- double V = ::fabs(pValues->GetElem(i));
- double aSweep = V * kA;
- int Slices = 1 + (int) ceil(aSweep * NSegmPerDegree);
- // drawing sector
- glColorC(pColors->GetElem(i));
- gluQuadricDrawStyle(pQObj, GLU_FILL);
- gluPartialDisk(pQObj, 0, 1, Slices, 1, aStart, aSweep);
- //drawing perimeter
- glColorC(m_Color);
- gluQuadricDrawStyle(pQObj, GLU_SILHOUETTE);
- gluPartialDisk(pQObj, 0, 1, Slices, 1, aStart, aSweep);
- aStart += aSweep;
- }
- gluDeleteQuadric(pQObj);
- }
- catch(...) {
- //need to trace it
- }
- pPane->Close();
- }
- }
- void CPieGraph::CalculateLimits()
- {
- m_Limits.Init(-1.0, -1.0, 1.0, 1.0);
- }
- bool CPieGraph::ShowMarkers()
- {
- return false;
- }
- IStringArray* CPieGraph::GetLabelArray()
- {
- IPieDataSource* pDS = GetPieDataSource();
- return pDS ? pDS->GetLabelsArray() : NULL;
- }
- IColorArray* CPieGraph::GetColorArray()
- {
- IPieDataSource* pDS = GetPieDataSource();
- return pDS ? pDS->GetColorArray() : NULL;
- }
- INumericArray* CPieGraph::GetMarkerArray()
- {
- return NULL;
- }
- /////////////////////////////////////////////////////////////////////////////
- /// CPieDataSource
- CPieDataSource::CPieDataSource(int SectorsN, const string& Name)
- : CSeriesBase(SectorsN),
- m_Name(Name)
- {
- }
- void CPieDataSource::CreateArrays()
- {
- CSeriesBase::CreateArrays();
- TValueAdapter* pValAd = new TValueAdapter(m_Length);
- AddArray(static_cast<IDataArray*>(pValAd));
- TColorAdapter* pCAd = new TColorAdapter(m_Length);
- AddArray(static_cast<IDataArray*>(pCAd));
- TStringAdapter* pLabAd = new TStringAdapter(m_Length);
- AddArray(static_cast<IDataArray*>(pLabAd));
- }
- END_NCBI_SCOPE
- /*
- * ===========================================================================
- * $Log: pie_graph.cpp,v $
- * Revision 1000.1 2004/06/01 20:49:32 gouriano
- * PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.5
- *
- * Revision 1.5 2004/05/21 22:27:42 gorelenk
- * Added PCH ncbi_pch.hpp
- *
- * Revision 1.4 2003/08/11 16:10:57 yazhuk
- * Compilation fixes for GCC
- *
- * Revision 1.3 2003/08/10 14:11:47 dicuccio
- * Added makefiles for Unix projects; compilation fixes for gcc
- *
- * Revision 1.2 2003 / 08 / 08 15:59:36 yazhuk
- * Comments added
- *
- * ===========================================================================
- */