There is colormap inconsistency in my graph for the code attatched.

1 次查看(过去 30 天)
Hi,
I used a package arrow3D. Here, I want the colormap on arrow to change with the variation in z-axis.
IANd since deltaV(3) is the z-direction. I tried passing it as
arrow3D(pos,deltaV,deltaV(3))
but it's not helping.
Thanks

回答(1 个)

alexander Mcghee
alexander Mcghee 2023-4-27
编辑:alexander Mcghee 2023-4-27
normalize the z-direction values between 0 and 1 so that they can be properly used to index the colormap.
pos = postot(ii,:)-.5*deltaV;
% Normalize the z-direction value between 0 and 1
z_norm = (deltaV(3) - min(deltaV0(3))) / (max(deltaV0(3)) - min(deltaV0(3)));
% Get the color from the colormap based on the normalized z-direction value
colorCode = colormap(jet(64));
arrowColor = colorCode(round(z_norm * 63) + 1, :);
arrow3D(pos, deltaV, arrowColor)
  1 个评论
KM
KM 2023-4-27
编辑:KM 2023-4-28
@alexander Mcghee Thank you so much fo the response. I did try that as,
Normalize the z-direction value between 0 and 1
min_z = min(deltaV0(3));
max_z = max(deltaV0(3));
if deltaV(3) <= min_z
z_norm = 0;
elseif deltaV(3) >= max_z
z_norm = 1;
else
z_norm = (deltaV(3) - min_z) / (max_z - min_z);
end
% Get the color from the colormap based on the normalized z-direction value
colorCode = colormap(jet(64));
arrowColor = colorCode(round(z_norm * 63) + 1, :);
But the colour code is not working properly and sometimes giving an script index error. Could you please cross check.

请先登录,再进行评论。

类别

Help CenterFile Exchange 中查找有关 Orange 的更多信息

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by