php泪中一帮助

八一xiaobayi

2020-06-08 11:46:57

putenv('GDFONTPATH=C:\windows\Fonts'); $width=500; $left_margin=50; $bar_spacing=$bar_height/2; $font='arial'; $title_size=16; //point text_indent=10;//position for text labels from edge of image //set up initial point to draw from $x=$left_margin+60; //place to draw $y=50; $bar_unit=($width-($x+$right_margin))/100; //calculate height of graph - bars gaps plus some margin $height=$num_candidates*($bar_height+$bar_spacing)+50; //PART THREE //create a blank canvasight,$bg_color); //draw outline around canvas imagerectangle($im,0,0,$width-1,$height-1,$line_color); //add title $title='Poll Results'; $title_dimensions=imagettfbbox($title_size,0,$font,$title); $title_length=$title_dimensions[2]-$title_dimensions[0]; $title_height=abs($title_dimensions[7]); $title_above_line=abs($title_dimensions[7]); $title_x=($width-$title_length)/2; //center in x $title_y=($y-$title_height)/2+$title_above_line; imagettftext($im,$title_size,0,$title_x,$title_y,$text_color,$font,$title); //draw a base line from a little above first bar location // to a little below last imageline($im,$x,$y-5,$x,$height-15,$line_color); //PART FOURTH //draw data into graph //get each line of db data and draw correct while($row=$result->fetch_object()) { if($total_votes>0) $percent=intval(($row->num_votes/$total_votes)*100); else $percent=0; //display percent for this value $percent_dimensions=imagettfbbox($main_size,0,$font,$percent.'%'); //length of bar for this value $percent_length=$percnet_dimensions[2]-$percent_dimensions[0]; imagettftext($im,$main_size,0,$width-$perecnt_length-$text_indent,$y+($bar_height)/2,$percent_color,$font,$percent.'%'); //lengh of bar for this value $bar_length=$x+($percent*$bar_unit); //draw bar for this value imagefilledrectangle($im,$x,$y-2,$bar_length,$y+$bar_height,$bar_color); //draw title for this value imagettftext($im,$main_size,0,$text_indent,$y+($bar_height/2),$text_color,$font,"$row->candidate"); //draw outline showing 100% imagerectangle($im,$bar_length+1,$y-2,($x+(100*$bar_unit)),$y+bar_height,$line_color);//display numbers imagettftext($im,$samll_size,0,$x+(100*$bar_unit)-50,$y+($bar_height)/2,$number_color,$font,$row->num_votes.'/'.$total_votes); //move down to next bar $y=$y+($bar_height+$bar_spacing); } //display image header('Content-type:image/png'); imagepng($im);imagedestroy($im);?>Warning: imagettfbbox() [function.imagettfbbox]: Invalid font filename in C:\AppServ\www\21\show_poll.php on line 94Warning: imagettftext() [function.imagettftext]: Invalid font filename in C:\AppServ\www\21\show_poll.php on line 102Warning: imagettfbbox() [function.imagettfbbox]: Invalid font filename in C:\AppServ\www\21\show_poll.php on line Warning: imagettftext() [function.imagettftext]: Invalid font filename in C:\AppServ\www\21\show_poll.php on line

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