How is the demand graph in Baidu index realized?

clipboard.png
I would like to ask the great god, who knows how this kind of picture is made? you can see that svg, is used. Who knows?

Sep.16,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e56505-43e7d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e56505-43e7d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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