How can I get the wind speed and direction values from u and v components?
조회 수: 13 (최근 30일)
이전 댓글 표시
As the quiver function shows speed and direction by arrows, there might be a built in function to get the speed and direction values.
Could anyone help please.
댓글 수: 0
채택된 답변
Star Strider
2016년 7월 2일
The ‘u’ and ‘v’ are the ‘x’ and ‘y’ components of the plotted vector. To get the magnitude, use the hypot function, and to get the direction, use the atan2 function. You can use these little utility functions to convert the atan2 or atan2d output to [0,p2*pi] or [0,360] representation:
Angles360 = @(a) rem(360+a, 360); % For ‘atan2d’
Angles2pi = @(a) rem(2*pi+a, 2*pi); % For ‘atan2’
These results will correspond to the mathematical convention for angle orientation, not the compass convention.
댓글 수: 0
추가 답변 (1개)
Walter Roberson
2016년 7월 2일
However, if you have an existing quiver plot it is usually easier to just take a copy of the u and v data that you used to create the plot.
댓글 수: 0
참고 항목
카테고리
Help Center 및 File Exchange에서 Vector Fields에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!