void phys2pix(int *x, int *y, float xx, float yy);
void pix2phys(int xx,int xy,float *px, float *py);
void arrow(float x1, float x2, float x3, float x4);
void line( float *x, float *y, int np);
void xline(float *x,float *y, int np);

void myDrawLine(int x1, int y1, int x2, int y2);
void myDrawFilledBox(int x, int y, int w, int h);
void myDrawText(char *text, int x, int y);
void mySetMyColor( float color);

void psGetScale();
void psDone();
void psInit();
void psPrint(char *printer, int where);
void psDrawLine(int x1, int y1, int x2, int y2);
void psDrawFilledBox(int x, int y, int w, int h);
void psDrawText(char *text, int x, int y);
void psline(float *x, float *y,int np);

int Xscl, Xxoff, Xyoff;
float xmax, xmin, ymax, ymin;

int nwinx, nwiny, winid;

int nlev, ncolor;
float arrwscl;
float maxarrwscl;
float minscalarX;
float maxscalarX;
extern char showElementNo[];
extern char showNodeNo[];