StreakArrow

Creates curved vector fields or "tuft" lines to look like wind tunnel tuft flow visualization.

Description

H = STREAKARROW(X,Y,U,V,np,arrow) creates "curved" vectors, from 2D vector data U and V. All vectors have the same length. The magnitude of the vector is color coded.
 The arrays X and Y defines the coordinates for U and V.
 The variable np is a coefficient >0, changing the length of the vectors.
 np=1 corresponds to a whole meshgrid step.
 np>1 allows ovelaps like streamlines.
 The parameter arrow defines the type of plot:
   arrow=1 draws "curved" vectors
   arrow=0 draws circle markers with streaks like "tuft" in wind tunnel studies

• Acknowledgements: This submission has inspired the following:; CURVVEC
• MATLAB release: MATLAB 6.5 (R13)

[Vinesh Rajpaul]

Hi Bertrand. Thanks for referring me to this script -- it's exactly what I needed (quiverc except with arrow lengths normalised). Works perfectly. I agree that in some (most?) cases the vector length and color coding should complement each other - just didn't want to use the former in my particular application. Keep up the great work!