首页| 论坛| 消息

标题:菜鸟求助qwtplot画图问题
作者:wb2012
日期:2013-08-02 15:38
内容:

用qwtplot画很简单的图试验下,总是出现这种情况: 画到最后一个点时出现一条回原点的直线。请问这是什么原因造成的。。
tpbq1data:image/png;base64,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 ..


#1 [wb2012 08-02 15:40]
图片没传上来,重新传一下。
#2 [wb2012 08-02 15:58]
问题解决了。
NC了。之前一直找不到原因。发现时setdata里的赋值范围PLOTSIZE比数组长度大一,所以自动加了个(0,0)点。。

回复 发表
主题 版块