---

Hershey.C File Reference

#include "Hershey.h"
#include <GL/gl.h>

Go to the source code of this file.

Defines
#define	VMDHERSHEYFIXEDNUMERICS   1
#define	VMD_DEFAULT_FONT_SCALE   0.0015f
Functions
float	h2float (char c)
void	hersheyDrawLetterOpenGL (unsigned char ch, int drawendpoints)
	This routine generates a sequence of OpenGL drawing commands that can be captured in a display list for fast subsequent rendering of each of the font glyphs. More...
void	hersheyDrawInitLetter (hersheyhandle *hh, const char ch, float *lm, float *rm)
	For VMD FileRenderer subclasses, it is most convenient to generate the font glyphs on the fly. This routine initializes a glyph rendering context for the requested character, to be accessed by subsequent calls to hersheyDrawNextLine(). The lm and rm values are X coordinate offsets to be applied before (lm) and after (rm) rendering the glyph, to produce the correct text spacing. More...
int	hersheyDrawNextLine (hersheyhandle *hh, int *draw, float *x, float *y)
	This routine computes the next glyph stroke vector, returning false for a run of connected strokes, and true when the stroke ends. It sets the value of the 'draw' parameter to true when X and Y are set, which allows the caller to determine when strokes begin and end, and to connect the segments with whatever geometry works best for the specific renderer. More...
Variables
char *	hersheyFontData []

---

Define Documentation

#define VMD_DEFAULT_FONT_SCALE   0.0015f

Definition at line 267 of file Hershey.C. Referenced by h2float.

#define VMDHERSHEYFIXEDNUMERICS   1

Definition at line 114 of file Hershey.C.

---

Function Documentation

float h2float (  char    c )  [inline]

Definition at line 270 of file Hershey.C. References VMD_DEFAULT_FONT_SCALE. Referenced by hersheyDrawInitLetter, hersheyDrawLetterOpenGL, and hersheyDrawNextLine.

void hersheyDrawInitLetter (  hersheyhandle *    hh, const char    ch, float *    lm, float *    rm )

For VMD FileRenderer subclasses, it is most convenient to generate the font glyphs on the fly. This routine initializes a glyph rendering context for the requested character, to be accessed by subsequent calls to hersheyDrawNextLine(). The lm and rm values are X coordinate offsets to be applied before (lm) and after (rm) rendering the glyph, to produce the correct text spacing. Definition at line 327 of file Hershey.C. References h2float, hersheyFontData, hersheyhandle::lm, hersheyhandle::p, and hersheyhandle::rm.

void hersheyDrawLetterOpenGL (  unsigned char    ch, int    drawendpoints )

This routine generates a sequence of OpenGL drawing commands that can be captured in a display list for fast subsequent rendering of each of the font glyphs. Definition at line 275 of file Hershey.C. References h2float, and hersheyFontData.

int hersheyDrawNextLine (  hersheyhandle *    hh, int *    draw, float *    x, float *    y )

This routine computes the next glyph stroke vector, returning false for a run of connected strokes, and true when the stroke ends. It sets the value of the 'draw' parameter to true when X and Y are set, which allows the caller to determine when strokes begin and end, and to connect the segments with whatever geometry works best for the specific renderer. Definition at line 337 of file Hershey.C. References h2float, and hersheyhandle::p.

---

Variable Documentation

char* hersheyFontData[]

Definition at line 116 of file Hershey.C. Referenced by hersheyDrawInitLetter, and hersheyDrawLetterOpenGL.

---