netgen/ng/demoview.hpp
Joachim Schoeberl 91d5c9888d ARRAY -> Array
2009-01-25 12:35:25 +00:00

147 lines
2.5 KiB
C++

#ifndef FILE_DEMOVIEW
#define FILE_DEMOVIEW
/*********************************************************************/
/* File: demoview.hpp */
/* Author: Robert, Joachim */
/* Date: 6. Mar. 2003 */
/*********************************************************************/
using namespace netgen;
enum DEMOVIEW_TOKEN_TYPE
{
DTOK_MINUS = '-', DTOK_LP = '(', DTOK_RP = ')', DTOK_LSP = '[', DTOK_RSP = ']',
DTOK_EQU = '=', DTOK_COMMA = ',', DTOK_SEMICOLON = ';', DTOK_COLON = ':', DTOK_PLUS = '+',
DTOK_NUM = 100, DTOK_STRING, DTOK_TIME, DTOK_CAMPOS, DTOK_CAMPOINT, DTOK_CAMUP,
DTOK_END
};
struct demoview_kwstruct
{
DEMOVIEW_TOKEN_TYPE kw;
const char * name;
};
class DemoScanner
{
DEMOVIEW_TOKEN_TYPE token;
double num_value;
string string_value;
int linenum;
ifstream * scanin;
public:
DemoScanner (ifstream & ascanin);
DEMOVIEW_TOKEN_TYPE GetToken() const
{ return token; }
double GetNumValue() const
{ return num_value; }
const string & GetStringValue() const
{ return string_value; }
void ReadNext();
void Error (const string & err);
};
void ParseChar (DemoScanner & scan, char ch);
double ParseNumber(DemoScanner & scan);
Vec<3> ParseVector (DemoScanner & scan);
template <class S>
class InterpolationPoint
{
double t;
S s;
public:
InterpolationPoint()
{};
~InterpolationPoint()
{};
double GetT() const
{ return t; };
S GetS() const
{ return s; };
void SetTS(double at, S as)
{ t = at; s = as; };
InterpolationPoint & operator= (const InterpolationPoint<S> & ip2)
{
SetTS (ip2.t, ip2.s);
return (*this);
};
};
template <class S>
class InterpolationSpline
{
protected:
Array < InterpolationPoint<S>[3] > ip;
int finished;
public:
InterpolationSpline() : finished(0)
{};
InterpolationSpline( S s1 ) : finished(0)
{
AddSpline (-1e99, -1e99, -1e99, s1, s1, s1);
// InterpolationSpline();
}
~InterpolationSpline()
{};
void AddSpline(double t1, double t2, double t3, S s1, S s2, S s3);
S Evaluate (double t);
int IsFinished() const
{
return finished;
}
};
class DemoView
{
InterpolationSpline< Vec<3> > campos;
InterpolationSpline< Vec<3> > campoint;
InterpolationSpline< Vec<3> > camup;
public:
DemoView (const char * filename);
~DemoView ();
int SetTime (double time);
};
#endif