解决error: ‘CvFont’ was not declared in this scope 225 | CvFont font；的问题

最新推荐文章于 2024-07-25 16:35:35 发布

Fleix_yang

最新推荐文章于 2024-07-25 16:35:35 发布

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文章标签： opencv c++

本文链接：https://blog.youkuaiyun.com/Fleixyang/article/details/128478108

本文解决了在使用OpenCV库时遇到的关于CvFont未声明的错误问题，并提供了具体的解决办法，即引入必要的头文件。

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解决如下问题：

error: ‘CvFont’ was not declared in this scope
225 |   CvFont font;
      |   ^~~~~~
/home/kilox/workspace/kilox/slam/ws_stargazer/src/Stargazer/lidar_slam/src/pcl_common.cpp:226:15: error: ‘font’ was not declared in this scope
226 |   cvInitFont(&font, CV_FONT_HERSHEY_SIMPLEX, 1.0, 1.0, 0, 2, 8);
      |               ^~~~
/home/kilox/workspace/kilox/slam/ws_stargazer/src/Stargazer/lidar_slam/src/pcl_common.cpp:226:21: error: ‘CV_FONT_HERSHEY_SIMPLEX’ was not declared in this scope
226 |   cvInitFont(&font, CV_FONT_HERSHEY_SIMPLEX, 1.0, 1.0, 0, 2, 8);
      |                     ^~~~~~~~~~~~~~~~~~~~~~~
/home/kilox/workspace/kilox/slam/ws_stargazer/src/Stargazer/lidar_slam/src/pcl_common.cpp:226:3: error: ‘cvInitFont’ was not declared in this scope
226 |   cvInitFont(&font, CV_FONT_HERSHEY_SIMPLEX, 1.0, 1.0, 0, 2, 8);
      |   ^~~~~~~~~~
/home/kilox/workspace/kilox/slam/ws_stargazer/src/Stargazer/lidar_slam/src/pcl_common.cpp:228:33: error: ‘cvPoint’ was not declared in this scope
228 |   cv::putText(mat_bg, msg_info, cvPoint(10, 30), cv::FONT_HERSHEY_PLAIN, 1.5, cvScalar(255, 255, 255), 1);
      |                                 ^~~~~~~
/home/kilox/workspace/kilox/slam/ws_stargazer/src/Stargazer/lidar_slam/src/pcl_common.cpp:228:79: error: ‘cvScalar’ was not declared in this scope; did you mean ‘tfScalar’?
228 |   cv::putText(mat_bg, msg_info, cvPoint(10, 30), cv::FONT_HERSHEY_PLAIN, 1.5, cvScalar(255, 255, 255), 1);