glutstrokewidth(3) [centos man page]

UNTITLED
							       LOCAL								  UNTITLED

NAME

     glutStrokeWidth -- Returns the width in pixels of a character in a given font.

LIBRARY

     OpenGLUT - fonts

SYNOPSIS

     #include <openglut.h>

     float
     glutStrokeWidth(void *fontID, int character);

PARAMETERS

      fontID	 A GLUT stroked font identifier.

      character  A character code.

DESCRIPTION

     This function reports how far the model space origin will advance if you putput this  character  in the font named by  fontID.   Not all let-
     ters will use their full width, especially in fixed-width fonts.

     Returns 0 if  character  is out of range or if the  fontID  is invalid.

CAVEATS

     Historically, this function has been described as returning a pixel-width, but was implemented to return the width in model-space units,
     rounded to integers. GLUT never resolved this, and freeglut duplicated the confusion. OpenGLUT has decided to stay in model-space and to
     return the unrounded floating point value. An unreleased GLUT 3.8 was supposed to include glutStrokeWidthf() and glutStrokeLengthf() (note
     the *f suffixes), but that is not in wide use.

TODO

     Determine if any glyphs are either wider than this function or if they render outside of the bounding box given by  (0,-descent)	by
     (width,height-descent)  .

SEE ALSO

     glutStrokeCharacter(3) glutStrokeLength(3) glutStrokeHeight(glutBitmapWidth) 3

								       Epoch

glutStrokeCharacter(3GLUT)					       GLUT						glutStrokeCharacter(3GLUT)

NAME

       glutStrokeCharacter - renders a stroke character using OpenGL.

SYNTAX

       void glutStrokeCharacter(void *font, int character);

ARGUMENTS

       font	 Stroke font to use.

       character Character to render (not confined to 8 bits).

DESCRIPTION

       Without using any display lists, glutStrokeCharacter renders the character in the named stroke font. The available fonts are:

       GLUT_STROKE_ROMAN
	       A  proportionally  spaced  Roman  Simplex font for ASCII characters 32 through 127. The maximum top character in the font is 119.05
	       units; the bottom descends 33.33 units.

       GLUT_STROKE_MONO_ROMAN
	       A mono-spaced spaced Roman Simplex font (same characters as GLUT_STROKE_ROMAN) for ASCII characters 32 through 127. The maximum top
	       character in the font is 119.05 units; the bottom descends 33.33 units. Each character is 104.76 units wide.

       Rendering  a nonexistent character has no effect. A glTranslatef is used to translate the current model view matrix to advance the width of
       the character.

EXAMPLE

       Here is a routine that shows how to render a string of ASCII text with glutStrokeCharacter:

	 void
	 output(GLfloat x, GLfloat y, char *text)
	 {
	   char *p;

	   glPushMatrix();
	   glTranslatef(x, y, 0);
	   for (p = text; *p; p++)
	     glutStrokeCharacter(GLUT_STROKE_ROMAN, *p);
	   glPopMatrix();
	 }

       If you want to draw stroke font text using wide, antialiased lines, use:

	 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	 glEnable(GL_BLEND);
	 glEnable(GL_LINE_SMOOTH);
	 glLineWidth(2.0);
	 output(200, 225, "This is antialiased.");

SEE ALSO

       glutBitmapCharacter, glutStrokeWidth

AUTHOR

       Mark J. Kilgard (mjk@nvidia.com)

GLUT
									3.7						glutStrokeCharacter(3GLUT)