function mathimage($text, $size)
{
$nameimg = md5(trim($text) . $size) . '.png';
$v = detectimg($nameimg);
if ($v == 0) {
global $symboles, $fontesmath;
import('content/math/mathpublisher');
$formula = new expression_math(tableau_expression(trim($text)));
$formula->dessine($size);
$v = 1000 - imagesy($formula->image) + $formula->base_verticale + 3;
imagepng($formula->image, DIR_IMG . '/math_' . $v . '_' . $nameimg);
}
$valign = $v - 1000;
$text = htmlentities(strip_tags($text), ENT_COMPAT, 'ISO-8859-1');
return '<img src="/images/maths/math_' . $v . '_' . $nameimg . '" style="vertical-align:' . $valign . 'px;display:inline-block;background-color:#FFFFFF;" alt="' . $text . '" title="' . $text . '"/>';
}
/**
* Render formule image
* @return
*/
public function render()
{
$expression = new expression_math(tableau_expression(trim($this->_formula)));
$expression->dessine($this->_symbol_size);
$width = imagesx($expression->image) + $this->_symbol_padding;
$height = imagesy($expression->image) + $this->_symbol_padding;
$image = imagecreatetruecolor($width, $height);
imagefill($image, 0, 0, 0xffffff);
imagecopy($image, $expression->image, 10, 10, 0, 0, $width - 20, $height - 20);
ob_start();
// buffers future output
imagepng($image);
// writes to output/buffer
$b64 = base64_encode(ob_get_contents());
// returns output
ob_end_clean();
// clears buffered output
return "data:image/png;base64," . $b64;
}
function mathimage($text, $size, $pathtoimg)
{
/*
Creates the formula image (if the image is not in the cache) and returns the <img src=...></img> html code.
*/
global $dirimg;
$nameimg = md5(trim($text) . $size) . '.png';
$v = detectimg($nameimg);
if ($v == 0) {
//the image doesn't exist in the cache directory. we create it.
$formula = new expression_math(tableau_expression(trim($text)));
$formula->dessine($size);
$v = 1000 - imagesy($formula->image) + $formula->base_verticale + 3;
//1000+baseline ($v) is recorded in the name of the image
ImagePNG($formula->image, $dirimg . "/math_" . $v . "_" . $nameimg);
}
$valign = $v - 1000;
return '<img src="' . $pathtoimg . "math_" . $v . "_" . $nameimg . '" style="vertical-align:' . $valign . 'px;' . ' display: inline-block ;" alt="' . $text . '" title="' . $text . '"/>';
}
/**
* @inheritdoc
*/
protected function renderImage($code)
{
require __DIR__ . '/mathpublisher.php';
$formula = new \expression_math(tableau_expression(trim($this->getExpresion($code))));
$formula->dessine($this->size);
ob_start();
switch ($this->imageFormat) {
case self::JPEG_FORMAT:
imagejpeg($formula->image);
break;
case self::PNG_FORMAT:
imagepng($formula->image);
break;
}
imagedestroy($formula->image);
return ob_get_clean();
}
function mathimage($text, $size, $pathtoimg, $color = '#000000', $bg_color = '#ffffff')
{
/*
Creates the formula image (if the image is not in the cache) and returns the <img src=...></img> html code.
*/
global $dirimg, $dirfonts, $mp_debug, $mpfont_red, $mpfont_green, $mpfont_blue, $mpbg_red, $mpbg_green, $mpbg_blue;
global $_VERSION;
list($mpfont_red, $mpfont_green, $mpfont_blue) = html2rgb($color);
list($mpbg_red, $mpbg_green, $mpbg_blue) = html2rgb($bg_color);
$text = stripslashes($text);
$size = max($size, 10);
$size = min($size, 24);
$nameimg = md5(trim($text) . $size . $color . $bg_color) . '.png';
$v = detectimg($nameimg);
if ($v == 0) {
//the image doesn't exist in the cache directory. we create it.
$formula = new expression_math(tableau_expression(trim($text)));
$formula->dessine($size);
$v = 1000 - imagesy($formula->image) + $formula->base_verticale + 3;
//1000+baseline ($v) is recorded in the name of the image
imagepng($formula->image, $dirimg . "/math_" . $v . "_" . $nameimg);
}
$valign = $v - 1000;
$label_text = htmlentities(str_replace('{prime}', "'", $text), ENT_COMPAT, 'UTF-8');
# encode so html stays valid
#$label_text = htmlentities(str_replace('{prime}',"'",$text)); # encode so html stays valid
$text = str_replace("€", '[euro80]', $text);
$text = str_replace("â82ac", '[euroU]', $text);
return '<!-- ' . $text . ' --><img src="' . $pathtoimg . "math_" . $v . "_" . $nameimg . '" style="vertical-align:' . $valign . 'px;' . ' display: inline-block ;" alt="' . $label_text . '" title="' . $label_text . '"/>';
}
