Hello,
Is it possible to specify scatter plot glyph sizes - specifically, circles and, e.g., radii, in data coords, rather than ?marker size? of ?points**2??
thanks, Randy
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Syrtis Major's gist at Plot a collection of patches (circles, ellipses, rectangles), similar to `plt.scatter` but the size of patches are in data unit. · GitHub seems to do what you want. See this stackoverflow answer for an example of the circles function in action -
Python scatter plot. Size and style of the marker - Stack Overflow
hth,
Scott
On May 21, 2019, at 11:42 AM, Heiland, Randy <heiland at iu.edu> wrote:
Hello,
Is it possible to specify scatter plot glyph sizes - specifically, circles and, e.g., radii, in data coords, rather than ?marker size? of ?points**2??
thanks, Randy
Thanks Scott! That certainly gets me closer. One question/problem I still have is that it doesn?t seem to like RGB as colors, in spite of the docs. I?ve attached a simple example.
Randy
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Syrtis Major's gist at Plot a collection of patches (circles, ellipses, rectangles), similar to `plt.scatter` but the size of patches are in data unit. · GitHub seems to do what you want. See this stackoverflow answer for an example of the circles function in action -
Python scatter plot. Size and style of the marker - Stack Overflowhth,
ScottHello,
Is it possible to specify scatter plot glyph sizes - specifically, circles and, e.g., radii, in data coords, rather than ?marker size? of ?points**2??
thanks, Randy
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On May 21, 2019, at 12:35 PM, Scott Lasley <selasley at icloud.com> wrote:
On May 21, 2019, at 11:42 AM, Heiland, Randy <heiland at iu.edu> wrote:
From the docstring in circles - "Note that `c` should not be a single numeric RGB or RGBA sequence because that is indistinguishable from an array of values to be colormapped. (If you insist, use `color` instead). So a slight modification of your code seems to do what you want
fig = plt.figure(figsize=(5,3))
ax = fig.gca()
ax.set_aspect("equal")
xvals = np.array([0,100])
yvals = np.array([0,0])
rvals = np.array([30,10])
rgb = np.array([[255, 0, 0], [0, 255, 0]])
circles(xvals, yvals, s=rvals, color=rgb / 255.) # use color instead of c and make 0. <= rgb <= 1.
plt.xlim(-30,110)
plt.ylim(-30,30)
plt.show()
Scott
On May 21, 2019, at 2:08 PM, Heiland, Randy <heiland at iu.edu> wrote:
Thanks Scott! That certainly gets me closer. One question/problem I still have is that it doesn?t seem to like RGB as colors, in spite of the docs. I?ve attached a simple example.
Randy
<test_circ2.py>
On May 21, 2019, at 12:35 PM, Scott Lasley <selasley at icloud.com> wrote:
Syrtis Major's gist at Plot a collection of patches (circles, ellipses, rectangles), similar to `plt.scatter` but the size of patches are in data unit. · GitHub seems to do what you want. See this stackoverflow answer for an example of the circles function in action -
Python scatter plot. Size and style of the marker - Stack Overflowhth,
ScottOn May 21, 2019, at 11:42 AM, Heiland, Randy <heiland at iu.edu> wrote:
Hello,
Is it possible to specify scatter plot glyph sizes - specifically, circles and, e.g., radii, in data coords, rather than ?marker size? of ?points**2??
thanks, Randy
Scott, thanks for the help once again! Yes, the results are exactly what I want, and seem to be quite fast for lots of circles.
Randy
From the docstring in circles - "Note that `c` should not be a single numeric RGB or RGBA sequence because that is indistinguishable from an array of values to be colormapped. (If you insist, use `color` instead). So a slight modification of your code seems to do what you want
fig = plt.figure(figsize=(5,3))
ax = fig.gca()
ax.set_aspect("equal")xvals = np.array([0,100])
yvals = np.array([0,0])
rvals = np.array([30,10])rgb = np.array([[255, 0, 0], [0, 255, 0]])
circles(xvals, yvals, s=rvals, color=rgb / 255.) # use color instead of c and make 0. <= rgb <= 1.
plt.xlim(-30,110)
plt.ylim(-30,30)
plt.show()Scott
Thanks Scott! That certainly gets me closer. One question/problem I still have is that it doesn?t seem to like RGB as colors, in spite of the docs. I?ve attached a simple example.
Randy
<test_circ2.py>
Syrtis Major's gist at Plot a collection of patches (circles, ellipses, rectangles), similar to `plt.scatter` but the size of patches are in data unit. · GitHub seems to do what you want. See this stackoverflow answer for an example of the circles function in action -
Python scatter plot. Size and style of the marker - Stack Overflowhth,
ScottHello,
Is it possible to specify scatter plot glyph sizes - specifically, circles and, e.g., radii, in data coords, rather than ?marker size? of ?points**2??
thanks, Randy
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On May 21, 2019, at 2:39 PM, Scott Lasley <selasley at icloud.com> wrote:
On May 21, 2019, at 2:08 PM, Heiland, Randy <heiland at iu.edu> wrote:
On May 21, 2019, at 12:35 PM, Scott Lasley <selasley at icloud.com> wrote:
On May 21, 2019, at 11:42 AM, Heiland, Randy <heiland at iu.edu> wrote: