Index of /php/chartdog_2_0/jpgraph_old/jpgraph/

README FOR JPGRAPH ================== This is JpGraph 1.11 an Object Oriented PHP4 Graph Plotting library. The libray is Copyright (C) 2001,2002,2003 Johan Persson and released under dual license QPL 1.0 for open source and educational use amd JpGraph Professional License for commercial use. Please see full license details at http://www.aditus.nu/jpgraph/ Included files -------------- README This file QPL.txt QPL 1.0 Licensee /src Changelog Changelog jpgraph.php Base library jpgraph_log.php Extension: logarithmic scales jpgraph_line.php Extension: line plots jpgraph_bar.php Extension: bar plots jpgraph_error.php Extension: error plots jpgraph_scatter.php Extension: scatter/impuls plots jpgraph_radar.php Extension: radar plots jpgraph_pie.php Extension: pie plots jpgraph_canvas.php Extension: drawing canvas jpgraph_canvtools.php Extension: utility classes for working with canvas jpgraph_pie3d.php Extension: 3D pie plots jpgraph_gantt.php Extension: Gantt chart jpgraph_regstat.php Extension: Statistics and cubic splines. jpgraph_stock.php Extension: Stock and box plots. jpgraph_gradient.php Extension: Color gradient class /src/utils/misc Various _unsupported_ small utilities to do image manipulation, create background images and help create graphical DB schema. /src/Examples A directory with around 215 example graphs with source. Run jpgraph_testsuit.php to get a list of all files and you can easily click on a file to see the code and the resulting image. /docs/manual/html/ Manual /docs/manual/ref/ Class reference Requirements: ------------- Miminum: * PHP 4.1 or higher * GD 1.8.x or higher Recommended: * PHP 4.2.3 * GD 2.0.8 or higher CAVEAT: To get background images working with GD 2.0.1 you MUST enable Truecolor images by setting the constant USE_TRUECOLOR to true. If you don't fo this the background images will just be a black rectangle. The problem with this is that the antialias for Truetype font is broken using truecolor images in GD 2.0.1. This means you can't have background and TTF fonts in the same image with GD 2.01. By upgrading to the latest GD (2.08 as of this writing)y ou will fix this problem. Installation ------------ 0. Make sure your PHP is AT LEAST 4.1 (preferrable 4.2.3) and that you have compiled support for GD library. You must make aboslutely sure that you have GD working. Please run phpinfo() to check if GD library is supported in your installation. If you don't have the GD library please consult the PHP manual under section "Image" for instructions on where to find this library. Please note that there are some minor known issues with the builtin GD in 4.3.0 1. Unzip and copy the files to a directory of your choice. 2. Check that the default directory paths in jpgraph.php for cache directory and TTF directory suits your installation. Note1: The default directories are different depending on if the library is running on Windows or UNIX. Note2: Apache/PHP must have write permission to your cache directory. 3. Check that all rest of the DEFINE in the top of JpGraph.php is setup to your preference. The default should be fine for most users. (See also Note 5. below) 4. Make sure PHP have write privileges to your cache directory if you plan on using the cache feature. 5. Read (really!) the FAQ on http://www.aditus.nu/jpgraph/jpg_faq.php. Troubleshooting --------------- 1. Any error about "parent::" undefined means that you are not using PHP 4.02 or above. You _NEED_ PHP 4.02 or higher. This problem has also been reported to sometimes occur under Windows. This problem has also been reported by people running Zend-cache and is a bug in Zend. A workaround is to move all files into one single file. 2. If you don't get any background images (but rather a solid black box) you are using GD 2.x but have forgotten to enable truecolor support. Correct this by enabling the USE_TRUECOLOR define. 3. If background images does not work make sure the settings of USE_GD2_LIBRARY corresponds to your installation, i.e. If you don't have GD2 then this define must be false! 4. If you are running PHP 4.06 and get an error saying "GD was not built with truetype support" you should know that this is a known problem with GD+PHP 4.06. There are some workarounds (search the net!) but it is really recommended that you instead upgrade to at least PHP 4.1.1 and configure PHP with --with-gd-native-ttf (Please also note that the built in TTF uses point size for fonts whereas Truetype 2 uses pixels.) Please DON't ask me how to resolve the GD Font problem. All mail regarding this will go straight to /dev/null. Upgrade to 4.1.1! 5. If you are running IIS and Win2k and get the error "Can't find font' when trying to use TTF fonts then try to change you paths to UNIX style, i.e. "/usr/local/fonts/ttf/". Remember that the path is absolute and not relative to the htdocs catalogue. Some versions of GD for Windows also need you to set the environment variable GDFONTPATH for GD to find the fonts. 6. If you are using the cache please make sure that you have set the permissions correctly for the cache directory so that Apache/PHP can write to that directory. 7. If you have problem building GD 2.0.1 for PHP you might want to try the following tip from Rasmus L. ----< QUOTE >---- Build GD 2.0.1 with these two lines in your GD2 Makefile CFLAGS=-g -DHAVE_LIBPNG -DHAVE_LIBJPEG -DHAVE_LIBFREETYPE LIBS=libgd.a -lpng -lz -ljpeg -freetype -lm Don't install the lib anywhere, just leave it in the GD-2.1.1 directory. Then build PHP using a minimum of: --with-gd=/home/<your_dir>/gd-2.0.1 --with-freetype-dir=/use --enable-gd-native-ttf --enable-gd-imgstrttf --with-jpeg-dir=/usr --with-png-dir=/usr --with-xpm-dir=/usr/X11R6 The above assumes you have freetype2 installed along with the libjpeg and libpng libs under /usr ----< END QUOTE >---- 8. Some windows installations seems to have a problem with a PHP script ending in a newline (This newline seems to be sent to the browser and will cause a Header already sent error). If you have this problem try remove all trailing newlines in the jpgraph* files Known problem ------------- 1. Image maps does not work with rotated images they assume that the image is located at 0 degrees. Bug reports and suggestions --------------------------- Should be sent to (jpgraph aditus nu) [insert at and dot] Change history: ------------------------------------------------------------------------ Date Ver Comment ------------------------------------------------------------------------ 2003-02-02 1.11 Stock charts and some minor oter changes. 2002-12-16 1.10 Alpha blending, cubic splines and field plots 2002-10-30 1.9.1 Fixed two stupid mistakes in 1.9 2002-10-25 1.9 TTF font change. Many small additional improvements 2002-09-17 1.8 Documentation update. 2002-09-09 1.8 BETA Functional improvements. 2002-07-05 1.7 Functional improvements. Rotated bar graphs. 2002-06-17 1.7 BETA Functional improvements. 2002-05-15 1.6.3 Enhancements to Gantt graphs anbd minor bug fixes. 2002-04-19 1.6.2 Addition of image maps for line and scatter plot 2002-04-07 1.6.1 Bug fixes for 3D pies and image maps for pie's 2002-04-01 1.6 Functional improvments 2002-04-01 1.6 BETA Beta candidate for 1.6 2002-03-01 1.5.3 Fix minor release problem in 1.5.2 2002-02-29 1.5.2 Minor bug fixes. 2002-02-11 1.5.1 Minor bug fixes. 2002-01-27 1.5 Functional improvements. Gantt charts. 2002-01-17 1.5-BETA2 Functional improvements, bug fixes 2001-12-16 1.5-BETA Functional improvements, gantt-charts, bug fixes. 2001-11-12 1.4 Functional improvements, bug fixes. 2001-09-23 1.3.1 Minor bug fixes 2001-09-13 1.3 Major functional enhancements and minor bugfixes 2001-04-29 1.2.2 Minor bug fixes. Addded background image support 2001-03-29 1.2.1 Minor bug fixes. Experimental support for 3D pie plots 2001-03-18 1.2 Second release see changes.txt 2001-02-18 1.1 Second release see changes.txt 2001-02-04 1.0 First public release ------------------------------------------------------------------------- Stockholm/London 2002-10-30 Johan Persson (jpgraph aditus nu) [insert at and dot] <EOF>