Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

gluortho2d(3g) [osx man page]

GLUORTHO2D(3G)															    GLUORTHO2D(3G)

NAME
gluOrtho2D - define a 2D orthographic projection matrix C SPECIFICATION
void gluOrtho2D( GLdouble left, GLdouble right, GLdouble bottom, GLdouble top ) PARAMETERS
left, right Specify the coordinates for the left and right vertical clipping planes. bottom, top Specify the coordinates for the bottom and top horizontal clipping planes. DESCRIPTION
gluOrtho2D sets up a two-dimensional orthographic viewing region. This is equivalent to calling glOrtho with near = -1 and far = 1. SEE ALSO
glOrtho, gluPerspective GLUORTHO2D(3G)

Check Out this Related Man Page

GLORTHO(3G)							   OpenGL Manual						       GLORTHO(3G)

NAME
glOrtho - multiply the current matrix with an orthographic matrix C SPECIFICATION
void glOrtho(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble nearVal, GLdouble farVal); PARAMETERS
left, right Specify the coordinates for the left and right vertical clipping planes. bottom, top Specify the coordinates for the bottom and top horizontal clipping planes. nearVal, farVal Specify the distances to the nearer and farther depth clipping planes. These values are negative if the plane is to be behind the viewer. DESCRIPTION
glOrtho describes a transformation that produces a parallel projection. The current matrix (see glMatrixMode()) is multiplied by this matrix and the result replaces the current matrix, as if glMultMatrix() were called with the following matrix as its argument: 2 right - left 0 0 t x 0 2 top - bottom 0 t y 0 0 -2 farVal - nearVal t z 0 0 0 1 where t x = - right + left right - leftt y = - top + bottom top - bottomt z = - farVal + nearVal farVal - nearVal Typically, the matrix mode is GL_PROJECTION, and left bottom - nearVal and right top - nearVal specify the points on the near clipping plane that are mapped to the lower left and upper right corners of the window, respectively, assuming that the eye is located at (0, 0, 0). - farVal specifies the location of the far clipping plane. Both nearVal and farVal can be either positive or negative. Use glPushMatrix() and glPopMatrix() to save and restore the current matrix stack. ERRORS
GL_INVALID_VALUE is generated if left = right, or bottom = top, or near = far. GL_INVALID_OPERATION is generated if glOrtho is executed between the execution of glBegin() and the corresponding execution of glEnd(). ASSOCIATED GETS
glGet() with argument GL_MATRIX_MODE glGet() with argument GL_COLOR_MATRIX glGet() with argument GL_MODELVIEW_MATRIX glGet() with argument GL_PROJECTION_MATRIX glGet() with argument GL_TEXTURE_MATRIX SEE ALSO
glFrustum(), glMatrixMode(), glMultMatrix(), glPushMatrix(), glViewport() COPYRIGHT
Copyright (C) 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/. AUTHORS
opengl.org opengl.org 06/10/2014 GLORTHO(3G)
Man Page

13 More Discussions You Might Find Interesting

1. AIX

AIX Links

Manufacturer Links General Information Home Page: IBM United States Documentation/Information: IBM System p - UNIX servers: Support and services pSeries and AIX Information Center Developerworks AIX Wiki: AIX Wiki AIX for System Administrators In-depth information from IBM: IBM... (0 Replies)
Discussion started by: Perderabo
0 Replies

2. OS X (Apple)

Mac OS X: Based on UNIX - Solid As a Rock

See this threads: Page Not Found - Apple Open Source - Apple (0 Replies)
Discussion started by: Neo
0 Replies

3. Shell Programming and Scripting

At A Glance Coloured Real Time Bargraph Generator...

Not sure if anyone is interested but I am just getting into UNIX like shell scripting... I have great interest in pseudo-animations in text mode and accessing HW like /dev/dsp for example... ... Have fun, I do... ;o) # !/bin/sh # # Bargraph_Generator.sh # # A DEMO 6 bit coloured... (0 Replies)
Discussion started by: wisecracker
0 Replies

4. UNIX for Advanced & Expert Users

When is a _function_ not a _function_?

For a starter I know the braces are NOT in the code... Consider these code snippets:- #!/bin/bash --posix x=0 somefunction() if then echo "I am here." fi # somefunction #!/bin/bash --posix x=0 somefunction() if (2 Replies)
Discussion started by: wisecracker
2 Replies

5. OS X (Apple)

Installing Dash Shell on OS X Lion

For those interested in installing dash shell on OSX Lion to help test POSIX compliancy of shell scripts, it is quite easy. I did it like this: If you don't have gcc on your system: 0. Download and install the Command Line Tools for Xcode package from Sign In - Apple * 1. Download the dash... (2 Replies)
Discussion started by: Scrutinizer
2 Replies

6. OS X (Apple)

Hearing Aid for OSX 10.12.x and greater.

Hearing Aid... Hi folks yet another bizarre piece of code that is Apple OSX 10.12.x to at least 10.14.1 specific. It requires only a default OSX install, and the internal microphone along with an external headphone assembly. Pre-amble, 14-02-2019: For over 3 weeks now I have been suffering a... (3 Replies)
Discussion started by: wisecracker
3 Replies

7. UNIX for Advanced & Expert Users

Shopt -s histappend

What is the point of this? Whenever I close my shell it appends to the history file without adding this. I have never seen it overwrite my history file. # When the shell exits, append to the history file instead of overwriting it shopt -s histappend (3 Replies)
Discussion started by: cokedude
3 Replies

8. OS X (Apple)

Undeletable file

Greetings, I'm trying to delete a file with a weird name from within Terminal on a Mac. It's a very old file (1992) with null characters in the name: ␀␀Word Finder® Plus™. Here are some examples of what I've tried: 12FX009:5 dpontius$ ls ␀␀Word Finder® Plus™ 12FX009:5 dpontius$ rm... (29 Replies)
Discussion started by: dpontius
29 Replies

9. Shell Programming and Scripting

To print diamond asterisk pattern based on inputs

I have to print the number of stars that increases on each line from the minimum number until it reaches the maximum number, and then decreases until it goes back to the minimum number. After printing out the lines of stars, it should also print the total number of stars printed. I have tried... (13 Replies)
Discussion started by: rohit_shinez
13 Replies

10. Programming

My first PERL incarnation... Audio Oscillograph

Hi all... Well guys and gals, I jumped in at the deep end and found things that PERL cannot do by default. Many tricky terminal escape codes are not catered for so I had to create workarounds. One thing I searched for was this: Passing perl variable to shell command AND, @Neo this was... (15 Replies)
Discussion started by: wisecracker
15 Replies

11. Shell Programming and Scripting

A dash to GOTO or a dash from GOTO, that is the question...

Well, guys I saw a question about GOTO for Python. So this gave me the inspiration to attempt a GOTO function for 'dash', (bash and ksh too). Machine: MBP OSX 10.14.3, default bash terminal, calling '#!/usr/local/bin/dash'... This is purely a fun project to see if it is possible in PURE... (3 Replies)
Discussion started by: wisecracker
3 Replies

12. Shell Programming and Scripting

Syntax error in subtraction in Bash

I am sharing a code snippet. for (( i=0; i<=$(( $count -1 )); i++ )) do first=${barr2} search=${barr1} echo $first echo "loop begins" for (( j=0; j<=5000; j++ )) do if } == $search ]]; then echo $j break; fi done second=${harr2} echo $second (2 Replies)
Discussion started by: ngabrani
2 Replies

13. Shell Programming and Scripting

Python: Refer a properties file from different location

Hi All, I'm having a python script: test.py in /path/to/script/test.py I'm using a properties file: test_properties.py (it is having values as dictionary{}) which is in same DIR as the script. Sample Properties file: params = { 'target_db' : 'a1_db' 'src_db' : ... (15 Replies)
Discussion started by: saps19
15 Replies

Featured Tech Videos