note 49429 added to function.imageline

This code is used to draw a board of hexagons (for games, classes, etc.) <?php //Draws a hexagonal board // User-defined values $maxTiles = 7; //The number of tiles at the center (widest part) of the board $minTiles = 4; //The number of tiles at the edges of the board $side = 30; //The length of the sides of the tiles in pixels $bgColor = array(0, 0, 0); //The background color in RGB format $fgColor = array(255, 255, 255);//The foreground color in RGB format //Calculated values $widthInTiles = range($maxTiles, $minTiles); //In our example: 7, 6, 5, 4 $rowsInTiles = count($widthInTiles)*2-1; //the total number of rows on our board $xSide = $side*sin(deg2rad(60)); //the length of the x-part of the angled sides $ySide = $side*sin(deg2rad(30)); //the length of the y-part of the angled sides $boardWidth = $xSide*$widthInTiles[0]*2; //The entire width of the board $boardHeight = $rowsInTiles*($side + $ySide) + $ySide; //The entire height of the board // create a blank image and allocate the foreground, background colors $image = imagecreate($boardWidth, $boardHeight); $bg = imagecolorallocate($image, $bgColor[0], $bgColor[1], $bgColor[2]); $fg = imagecolorallocate($image, $fgColor[0], $fgColor[1], $fgColor[2]); // draw the board $row = 0; foreach($widthInTiles as $tiles) { for ($i = 0; $i < $tiles+1; $i++) { $x1 = $row*$xSide + $i*$xSide*2; $y1 = $boardHeight/2; $y1Dif = ($side/2) + $row*($side+$ySide); $x2 = $x1 + $xSide; $y2 = $y1; $y2Dif = $ySide; $x3 = $x2 + $xSide; if ($i < $tiles) { imageline($image, $x1, $y1 - $y1Dif, $x2, $y2 - $y1Dif - $y2Dif, $fg); imageline($image, $x1, $y1 + $y1Dif, $x2, $y2 + $y1Dif + $y2Dif, $fg); imageline($image, $x2, $y2 - $y1Dif - $y2Dif, $x3, $y1 - $y1Dif, $fg); imageline($image, $x2, $y2 + $y1Dif + $y2Dif, $x3, $y1 + $y1Dif, $fg); } imageline($image, $x1, $y1 - $y1Dif, $x1, $y1 - $y1Dif + $side, $fg); imageline($image, $x1, $y1 + $y1Dif, $x1, $y1 + $y1Dif - $side, $fg); } $row++; } // output the picture header("Content-type: image/png"); imagepng($image); imagedestroy($image); ?> ---- Manual Page -- http://www.php.net/manual/en/function.imageline.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+49429 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+49429&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+49429&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+49429&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+49429&report=yes&reason=useless Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+49429&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+49429&report=yes Search -- http://master.php.net/manage/user-notes.php