Clean up quiver docstring + add simple quiver example #7913
Remove old simple quiver demo
- Loading branch information
commit a63fd7faf6f3b73d46ecc04e43c03393587d93c9
There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,12 +1,10 @@ | ||
| ''' | ||
| Demonstration of advanced quiver and quiverkey functions. | ||
|
|
||
| Known problem: the plot autoscaling does not take into account | ||
| the arrows, so those on the boundaries are often out of the picture. | ||
| This is *not* an easy problem to solve in a perfectly general way. | ||
| The workaround is to manually expand the axes. | ||
| ''' | ||
| import matplotlib.pyplot as plt | ||
| import numpy as np | ||
|
|
@@ -16,18 +14,6 @@ | |
| U = np.cos(X) | ||
| V = np.sin(Y) | ||
|
|
||
| plt.figure() | ||
| Q = plt.quiver(X, Y, U, V, units='width') | ||
| qk = plt.quiverkey(Q, 0.9, 0.95, 2, r'$2 \frac{m}{s}$', | ||
|
|
@@ -37,7 +23,6 @@ | |
| plt.axis([-1, 7, -1, 7]) | ||
| plt.title('scales with plot width, not view') | ||
|
|
||
| plt.figure() | ||
| Q = plt.quiver(X[::3, ::3], Y[::3, ::3], U[::3, ::3], V[::3, ::3], | ||
| pivot='mid', color='r', units='inches') | ||
|
|
@@ -47,7 +32,6 @@ | |
| plt.axis([-1, 7, -1, 7]) | ||
| plt.title("pivot='mid'; every third arrow; units='inches'") | ||
|
|
||
| plt.figure() | ||
| M = np.hypot(U, V) | ||
| Q = plt.quiver(X, Y, U, V, M, | ||
|
|
@@ -62,7 +46,6 @@ | |
| plt.axis([-1, 7, -1, 7]) | ||
| plt.title("scales with x view; pivot='tip'") | ||
|
|
||
| plt.figure() | ||
| Q = plt.quiver(X[::3, ::3], Y[::3, ::3], U[::3, ::3], V[::3, ::3], | ||
| color='r', units='x', | ||
|
|
@@ -72,7 +55,6 @@ | |
| plt.axis([-1, 7, -1, 7]) | ||
| plt.title("triangular head; scale with x view; black edges") | ||
|
|
||
| plt.figure() | ||
|
There was a problem hiding this comment. agree with @NelleV that there are a lot of examples here; it's kinda overwhelming and is there a reasonable way for it to be pared down? Specially since this is a pylab example and so all these features are (or should be) documented the OO way? |
||
| M = np.zeros(U.shape, dtype='bool') | ||
| XMaskStart = U.shape[0]//3 | ||
|
|
@@ -85,7 +67,7 @@ | |
| U = ma.masked_array(U, mask=M) | ||
| V = ma.masked_array(V, mask=M) | ||
| Q = plt.quiver(U, V) | ||
| qk = plt.quiverkey(Q, 0.5, 0.96, 2, r'$2 \frac{m}{s}$', labelpos='W', | ||
| fontproperties={'weight': 'bold'}) | ||
| l, r, b, t = plt.axis() | ||
| dx, dy = r - l, t - b | ||
|
|
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
can these be at the top of the plot code? I tend to scan for the title code and then expect the rest of the code underneath it to make the new figure.