コード例 #1
0
ファイル: data_gr.cpp プロジェクト: svn2github/MathGL
//-----------------------------------------------------------------------------
void MGL_EXPORT mgl_data_fill_eq(HMGL gr, HMDT d, const char *eq, HCDT vdat, HCDT wdat, const char *opt)
{
	if(vdat && vdat->GetNN()!=d->GetNN())	return;	// incompatible dimensions
	if(wdat && wdat->GetNN()!=d->GetNN())	return;
	gr->SaveState(opt);
	std::wstring s = d->Name();	d->Name(L"u");
	mglDataV x(d->nx,d->ny,d->nz, gr->Min.x,gr->Max.x,'x');	x.Name(L"x");
	mglDataV y(d->nx,d->ny,d->nz, gr->Min.y,gr->Max.y,'y');	y.Name(L"y");
	mglDataV z(d->nx,d->ny,d->nz, gr->Min.z,gr->Max.z,'z');	z.Name(L"z");
	mglDataV i(d->nx,d->ny,d->nz, 0,d->nx-1,'x');	i.Name(L"i");
	mglDataV j(d->nx,d->ny,d->nz, 0,d->ny-1,'y');	j.Name(L"j");
	mglDataV k(d->nx,d->ny,d->nz, 0,d->nz-1,'z');	k.Name(L"k");
	mglDataV r(d->nx,d->ny,d->nz);	r.Name(L"#$mgl");
	mglData v(vdat), w(wdat);	v.Name(L"v");	w.Name(L"w");
	std::vector<mglDataA*> list;
	list.push_back(&x);	list.push_back(&y);	list.push_back(&z);	list.push_back(&r);
	list.push_back(d);	list.push_back(&v);	list.push_back(&w);
	list.push_back(&i);	list.push_back(&j);	list.push_back(&k);
	d->Move(mglFormulaCalc(eq,list));	d->Name(s.c_str());	gr->LoadState();
}
コード例 #2
0
ファイル: parser.cpp プロジェクト: nickjhathaway/mathgl
//-----------------------------------------------------------------------------
// convert substrings to arguments
void mglParser::FillArg(mglGraph *gr, int k, std::wstring *arg, mglArg *a)
{
	register long n;
	for(n=1;n<k;n++)
	{
		mglDataA *v;	mglNum *f;
		a[n-1].type = -1;
		if(arg[n][0]=='|')	a[n-1].type = -1;
		else if(arg[n][0]=='\'')	// this is string (simplest case)
		{
			a[n-1].type = 1;
			std::wstring &w=arg[n],f;
			wchar_t buf[32];
			long i,i1,ll=w.length();
			for(i=1;i<ll;i++)
			{
				if(w[i]=='\'')
				{
					if(i==ll-1)	continue;
					i++;	i1 = i;
					if(w[i1]==',')	i1++;
					if(w[i1]==0)	continue;
					for(;i<ll && w[i]!='\'';i++);
					if(i>i1)
					{
						if(w[i1]=='!')
						{
							HADT d = mglFormulaCalcC(w.substr(i1+1,i-i1-(w[i]=='\''?1:0)), this, DataList);
							mreal di = imag(d->a[0]), dr = real(d->a[0]);
							if(di>0)	mglprintf(buf,32,L"%g+%gi",dr,di);
							else if(di<0)	mglprintf(buf,32,L"%g-%gi",dr,-di);	// TODO use \u2212 ???
							else	mglprintf(buf,32,L"%g",dr);
							a[n-1].w += buf;	delete d;
						}
						else
						{
							HMDT d = mglFormulaCalc(w.substr(i1,i-i1-(w[i]=='\''?1:0)), this, DataList);
							mglprintf(buf,32,L"%g",d->a[0]);	a[n-1].w += buf;	delete d;
						}
					}
				}
				else	a[n-1].w += w[i];
			}
		}
		else if(arg[n][0]=='{')
		{	// this is temp data
			mglData *u=new mglData;
			std::wstring s = arg[n].substr(1,arg[n].length()-2);
			a[n-1].w = u->s = L"/*"+s+L"*/";
			a[n-1].type = 0;
			ParseDat(gr, s, *u);	a[n-1].d = u;
			u->temp=true;	DataList.push_back(u);
		}
		else if((v = FindVar(arg[n].c_str()))!=0)	// try to find normal variables (for data creation)
		{	a[n-1].type=0;	a[n-1].d=v;	a[n-1].w=v->s;	}
		else if((f = FindNum(arg[n].c_str()))!=0)	// try to find normal number (for data creation)
		{	a[n-1].type=2;	a[n-1].d=0;	a[n-1].v=f->d;	a[n-1].c=f->c;	a[n-1].w = f->s;	}
		else if(arg[n][0]=='!')	// complex array is asked
		{	// parse all numbers and formulas by unified way
			HADT d = mglFormulaCalcC(arg[n].substr(1), this, DataList);
			if(d->GetNN()==1)
			{
				if(CheckForName(arg[n].substr(1)))
				{	a[n-1].type = 2;	a[n-1].v = d->v(0);	a[n-1].c = d->a[0];	}
				else
				{	a[n-1].type = 0;	a[n-1].d = AddVar(arg[n].c_str());	}
				delete d;
			}
			else
			{
				a[n-1].w = L"/*"+arg[n]+L"*/";
				d->temp=true;	DataList.push_back(d);
				a[n-1].type = 0;	a[n-1].d = d;
			}
		}
		else
		{	// parse all numbers and formulas by unified way
			HMDT d = mglFormulaCalc(arg[n], this, DataList);
			if(d->GetNN()==1)
			{
				if(CheckForName(arg[n]))
				{	a[n-1].type = 2;	a[n-1].c = a[n-1].v = d->v(0);	}
				else
				{	a[n-1].type = 0;	a[n-1].d = AddVar(arg[n].c_str());	}
				delete d;
			}
			else
			{
				a[n-1].w = L"/*"+arg[n]+L"*/";
				d->temp=true;	DataList.push_back(d);
				a[n-1].type = 0;	a[n-1].d = d;
			}
		}
	}
}