Databases
StackOverflow2013
Postsdbo
POAdding annotation to data points
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POAdding annotation to data points
    primarykey
    data
    text
    <p>I want to generate an azimuth-elevation plot depicting the motion of a body over a range of dates. In the example figure below, I made a polar plot of the data using standard matplotlib calls. However, I want to programmatically add tic marks and text labels to some of the points to annotate the date associated with the data. These were added to the figure below using Gimp.</p> <p>Ideally, I'd like for the tic marks to be drawn normal to the curve location where they're plotted but I could live with having them vertical or horizontal if I can have them with an existing matplotlib function call. However, I haven't been able to find a set of functions that do this. Are there such things or do I need to write my own?</p> <p><img src="https://i.stack.imgur.com/0eiUS.png" alt="AZ-EL plot with annotations"></p> <pre><code>from matplotlib.pyplot import * azel = [(0.13464431952125472,294.0475121469728,41761.31282856121), (1.0847050101323694, 294.07215546949817, 41762.31339111264), (2.0568066678342625, 294.08166309282285, 41763.3139526239), (3.0241776724839813, 294.07688196040385, 41764.3145128838), (3.9693016837899107, 294.05876829872494, 41765.315071676574), (4.880729810599228, 294.0283602965401, 41766.315628782446), (5.750685455655052, 293.98677810487305, 41767.31618397785), (6.573500415719916, 293.93516919550444, 41768.316737037436), (7.344961744736395, 293.8748176439982, 41769.31728773474), (8.061838763227069, 293.80692556364824, 41770.317835842376), (8.7216239379929, 293.732913633802, 41771.31838113272), (9.322354443421153, 293.65412057153674, 41772.31892337514), (9.862485802985763, 293.57204901846984, 41773.319462333326), (10.340798827919878, 293.48820161621876, 41774.31999776034), (10.756318508719481, 293.40413564791425, 41775.32052939467), (11.108256812309081, 293.3215176797138, 41776.32105695697), (11.395961455622944, 293.2420689192882, 41777.321580147836), (11.618873216922772, 293.16759253657835, 41778.32209864656), (11.776501176361972, 293.09997366379525, 41779.322612110234), (11.868395395228971, 293.04117939541976, 41780.32312017416), (11.894134963116164, 292.9932041466896, 41781.32362245329), (11.853317752636167, 292.95820625738247, 41782.324118542434), (11.745559565648168, 292.9383167465194, 41783.32460801967), (11.57050010967345, 292.9358305576615, 41784.325090448285), (11.327811535631849, 292.95306995512664, 41785.32556538106), (11.01721978218292, 292.9923298824759, 41786.32603236289), (10.638530188935318, 293.0560692078104, 41787.32649093496), (10.191665062487234, 293.1466921577181, 41788.32694063783), (9.676711487750586, 293.26663027954356, 41789.32738101277), (9.093982799653546, 293.4182877998745, 41790.32781160377), (8.444096276542357, 293.6040416245422, 41791.328231959254), (7.728075593018872, 293.82621401786434, 41792.328641632426), (6.947485289289849, 294.08704528188883, 41793.32904018317), (6.104631834860636, 294.3886391148799, 41794.329427178716), (5.202865010632301, 294.7329352905619, 41795.3298021964), (4.247126458469349, 295.12173697887573, 41796.3301648264), (3.2448043086196177, 295.55651950068204, 41797.3305146729), (2.2076748744292662, 296.0385122900315, 41798.3308513581), (1.1552935211005704, 296.56867157340787, 41799.33117452266), (0.12014145335536401, 297.1474344829181, 41800.33148382535)] fig = figure() ax = fig.add_subplot(1,1,1,projection='polar') ax.plot([az for el,az,_ in azel], [el for el,az,_ in azel]) ylim([0,25]) show() </code></pre>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USsizzzzlerz
    1. USsizzzzlerz
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POAdding annotation to data points
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POAdding annotation to data points
      1. USDan
      1. VTFavorite
    3. VO
      singulars
      1. POAdding annotation to data points
      1. This table or related slice is empty.
      1. VTUpMod
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload