我正在使用matplotlib的颤动在3d轴上绘制一些矢量。问题是,当我想添加一个滑块小部件并根据滑块更新矢量的大小时,一旦更改位置,一切都会按我的预期进行,但是我失去了颤抖的箭头。
这是示例代码:
(psycopg2.errors.UndefinedFunction) operator does not exist: character varying =?
LINE 1: ... (ispublic=0 AND ownerid::varchar=?)) AND (...
^
HINT: No operator matches the given name and argument type. You might need to add an explicit type cast.
[SQL: SELECT name, columndata, gridname, ownerid, issystem, ispublic, isactive, createdby, createdat, modifiedat, modifiedby FROM col.layout WHERE (ispublic=1 OR (ispublic=0 AND ownerid::varchar=?)) AND (gridname=? AND isactive=1)]
[parameters: ('3', 'RT')]
(Background on this error at: http://sqlalche.me/e/f405)
这是以前的样子:
在我更新后:
我知道将颤动转换为分段线会导致问题,但是我不知道其他任何方式来更新颤动。任何帮助将不胜感激。