pi_TexFont.h File Reference

OpenGL Texture Font System. More...

Go to the source code of this file.

Classes
struct	TexGlyphInfo
class	TexFont

Macros
#define	DEGREE_GLYPH   127
#define	MIN_GLYPH   32
#define	MAX_GLYPH   128
#define	NUM_GLYPHS   (MAX_GLYPH - MIN_GLYPH)
#define	COLS_GLYPHS   16
#define	ROWS_GLYPHS   ((NUM_GLYPHS / COLS_GLYPHS) + 1)
#define	DECL_EXP

Detailed Description

OpenGL Texture Font System.

Provides bitmap font rendering using OpenGL textures for weather data visualization. Key features:

Font Management:

• Bitmap font generation from system fonts
• ASCII character support with degree symbol
• Single texture atlas packing (16x8 grid)
• Optional glyph blurring for anti-aliasing

Rendering Capabilities:

• Hardware-accelerated text rendering
• Text extent calculations
• Cached glyph metrics
• Basic string layout

The system is optimized for OpenGL-based text rendering in the GRIB plugin's overlay displays and data visualization components.

Definition in file pi_TexFont.h.

Macro Definition Documentation

COLS_GLYPHS

#define COLS_GLYPHS   16

Definition at line 52 of file pi_TexFont.h.

DECL_EXP

#define DECL_EXP

Definition at line 59 of file pi_TexFont.h.

DEGREE_GLYPH

#define DEGREE_GLYPH   127

Definition at line 46 of file pi_TexFont.h.

MAX_GLYPH

#define MAX_GLYPH   128

Definition at line 48 of file pi_TexFont.h.

MIN_GLYPH

#define MIN_GLYPH   32

Definition at line 47 of file pi_TexFont.h.

NUM_GLYPHS

#define NUM_GLYPHS   (MAX_GLYPH - MIN_GLYPH)

Definition at line 50 of file pi_TexFont.h.

ROWS_GLYPHS

#define ROWS_GLYPHS   ((NUM_GLYPHS / COLS_GLYPHS) + 1)

Definition at line 53 of file pi_TexFont.h.