Say I have a marker with a known size in points and I want to draw an arrow
to this point. How can I get the ends points for the arrow? As you can see
in the below, it overlaps the markers. I want to go to the edge. I can use
shrinkA and shrinkB to do what I want, but I don't see how they're related
to the points size**.5. Or should I somehow do the transformation using the
known angle between the two points and the point itself. I don't know how
to translate a point in data coordinates and the offset it in a certain
direction by size**.5 points. Can anyone help clear this up?
Skipper
import matplotlib.pyplot as plt
from matplotlib.patches import FancyArrowPatch
point1 = (138.21, 19.5)
x1, y1 = point1
point2 = (67.0, 30.19)
x2, y2 = point2
size = 700
fig, ax = plt.subplots()
ax.scatter(*zip(point1, point2), marker='o', s=size)
# if I need to get and use the angles
dx = x2 - x1
dy = y2 - y1
d = np.sqrt(dx**2 + dy**2)
arrows = FancyArrowPatch(posA=(x1, y1), posB=(x2, y2),
color = 'k',
arrowstyle="-|>",
mutation_scale=700**.5,
connectionstyle="arc3")
ax.add_patch(arrows)
------------------------------------------------------------------------------
Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS,
MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current
with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft
MVPs and experts. ON SALE this month only -- learn more at:
http://p.sf.net/sfu/learnnow-d2d
_______________________________________________
Matplotlib-users mailing list
Matplotlib-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-users
