Given I have a dataframe with x,y coordinates and a value, I am able to draw a heatmap via seaborn. In a next step, I want to draw an addition circle within this data from the center of the plot with a radius of 10. Therefore I calculated x_center and y_center. Now I need to know how I can draw a circle within a heatmap, but I have no idea how to do that. Can you give me any idea?
df_a = pd.DataFrame( {'x': {1330: 13, 1331: 13, 1332: 13, 1333: 13, 1334: 13, 1335: 13, 1336: 13, 1429: 14, 1430: 14, 1431: 14, 1432: 14, 1433: 14, 1434: 14, 1435: 14, 1436: 14, 1437: 14, 1438: 14, 1439: 14, 1529: 15, 1530: 15, 1531: 15, 1532: 15, 1533: 15, 1534: 15, 1535: 15, 1536: 15, 1537: 15, 1538: 15, 1539: 15, 1540: 15, 1541: 15, 1629: 16, 1630: 16, 1631: 16, 1632: 16, 1633: 16, 1634: 16, 1635: 16, 1636: 16, 1637: 16, 1638: 16, 1639: 16, 1640: 16, 1641: 16, 1642: 16, 1643: 16, 1729: 17, 1730: 17, 1731: 17, 1732: 17, 1733: 17, 1734: 17, 1735: 17, 1736: 17, 1737: 17, 1738: 17, 1739: 17, 1740: 17, 1741: 17, 1742: 17, 1743: 17, 1744: 17, 1745: 17, 1829: 18, 1830: 18, 1831: 18, 1832: 18, 1833: 18, 1834: 18, 1835: 18, 1836: 18, 1837: 18, 1838: 18, 1839: 18, 1840: 18, 1841: 18, 1842: 18, 1843: 18, 1844: 18, 1845: 18, 1846: 18, 1847: 18, 1929: 19, 1930: 19, 1931: 19, 1932: 19, 1933: 19, 1934: 19, 1935: 19, 1936: 19, 1937: 19, 1938: 19, 1939: 19, 1940: 19, 1941: 19, 1942: 19, 1943: 19, 1944: 19, 1945: 19, 1946: 19, 1947: 19, 1948: 19, 1949: 19, 2030: 20, 2031: 20, 2032: 20, 2033: 20, 2034: 20, 2035: 20, 2036: 20, 2037: 20, 2038: 20, 2039: 20, 2040: 20, 2041: 20, 2042: 20, 2043: 20, 2044: 20, 2045: 20, 2046: 20, 2047: 20, 2048: 20, 2049: 20, 2050: 20, 2130: 21, 2131: 21, 2132: 21, 2133: 21, 2134: 21, 2135: 21, 2136: 21, 2137: 21, 2138: 21, 2139: 21, 2140: 21, 2141: 21, 2142: 21, 2143: 21, 2144: 21, 2145: 21, 2146: 21, 2147: 21, 2148: 21, 2149: 21, 2150: 21, 2151: 21, 2152: 21, 2231: 22, 2232: 22, 2233: 22, 2234: 22, 2235: 22, 2236: 22, 2237: 22, 2238: 22, 2239: 22, 2240: 22, 2241: 22, 2242: 22, 2243: 22, 2244: 22, 2245: 22, 2246: 22, 2247: 22, 2248: 22, 2249: 22, 2250: 22, 2251: 22, 2252: 22, 2253: 22, 2332: 23, 2333: 23, 2334: 23, 2335: 23, 2336: 23, 2337: 23, 2338: 23, 2339: 23, 2340: 23, 2341: 23, 2342: 23, 2343: 23, 2344: 23, 2345: 23, 2346: 23, 2347: 23, 2348: 23, 2349: 23, 2350: 23, 2351: 23, 2352: 23, 2353: 23, 2354: 23, 2433: 24, 2434: 24, 2435: 24, 2436: 24, 2437: 24, 2438: 24, 2439: 24, 2440: 24, 2441: 24, 2442: 24, 2443: 24, 2444: 24, 2445: 24, 2446: 24, 2447: 24, 2448: 24, 2449: 24, 2450: 24, 2451: 24, 2452: 24, 2453: 24, 2454: 24, 2455: 24, 2534: 25, 2535: 25, 2536: 25, 2537: 25, 2538: 25, 2539: 25, 2540: 25, 2541: 25, 2542: 25, 2543: 25, 2544: 25, 2545: 25, 2546: 25, 2547: 25, 2548: 25, 2549: 25, 2550: 25, 2551: 25, 2552: 25, 2553: 25, 2554: 25, 2555: 25, 2556: 25, 2635: 26, 2636: 26, 2637: 26, 2638: 26, 2639: 26, 2640: 26, 2641: 26, 2642: 26, 2643: 26, 2644: 26, 2645: 26, 2646: 26, 2647: 26, 2648: 26, 2649: 26, 2650: 26, 2651: 26, 2652: 26, 2653: 26, 2654: 26, 2655: 26, 2656: 26, 2657: 26, 2736: 27, 2737: 27, 2738: 27, 2739: 27, 2740: 27, 2741: 27, 2742: 27, 2743: 27, 2744: 27, 2745: 27, 2746: 27, 2747: 27, 2748: 27, 2749: 27, 2750: 27, 2751: 27, 2752: 27, 2753: 27, 2754: 27, 2755: 27, 2756: 27, 2757: 27, 2758: 27, 2838: 28, 2839: 28, 2840: 28, 2841: 28, 2842: 28, 2843: 28, 2844: 28, 2845: 28, 2846: 28, 2847: 28, 2848: 28, 2849: 28, 2850: 28, 2851: 28, 2852: 28, 2853: 28, 2854: 28, 2855: 28, 2856: 28, 2857: 28, 2858: 28, 2939: 29, 2940: 29, 2941: 29, 2942: 29, 2943: 29, 2944: 29, 2945: 29, 2946: 29, 2947: 29, 2948: 29, 2949: 29, 2950: 29, 2951: 29, 2952: 29, 2953: 29, 2954: 29, 2955: 29, 2956: 29, 2957: 29, 2958: 29, 2959: 29, 3041: 30, 3042: 30, 3043: 30, 3044: 30, 3045: 30, 3046: 30, 3047: 30, 3048: 30, 3049: 30, 3050: 30, 3051: 30, 3052: 30, 3053: 30, 3054: 30, 3055: 30, 3056: 30, 3057: 30, 3058: 30, 3059: 30, 3143: 31, 3144: 31, 3145: 31, 3146: 31, 3147: 31, 3148: 31, 3149: 31, 3150: 31, 3151: 31, 3152: 31, 3153: 31, 3154: 31, 3155: 31, 3156: 31, 3157: 31, 3158: 31, 3159: 31, 3245: 32, 3246: 32, 3247: 32, 3248: 32, 3249: 32, 3250: 32, 3251: 32, 3252: 32, 3253: 32, 3254: 32, 3255: 32, 3256: 32, 3257: 32, 3258: 32, 3259: 32, 3347: 33, 3348: 33, 3349: 33, 3350: 33, 3351: 33, 3352: 33, 3353: 33, 3354: 33, 3355: 33, 3356: 33, 3357: 33, 3358: 33, 3359: 33, 3449: 34, 3450: 34, 3451: 34, 3452: 34, 3453: 34, 3454: 34, 3455: 34, 3456: 34, 3457: 34, 3458: 34, 3459: 34, 3552: 35, 3553: 35, 3554: 35, 3555: 35, 3556: 35, 3557: 35, 3558: 35}, 'y': {1330: 17, 1331: 18, 1332: 19, 1333: 20, 1334: 21, 1335: 22, 1336: 23, 1429: 15, 1430: 16, 1431: 17, 1432: 18, 1433: 19, 1434: 20, 1435: 21, 1436: 22, 1437: 23, 1438: 24, 1439: 25, 1529: 14, 1530: 15, 1531: 16, 1532: 17, 1533: 18, 1534: 19, 1535: 20, 1536: 21, 1537: 22, 1538: 23, 1539: 24, 1540: 25, 1541: 26, 1629: 13, 1630: 14, 1631: 15, 1632: 16, 1633: 17, 1634: 18, 1635: 19, 1636: 20, 1637: 21, 1638: 22, 1639: 23, 1640: 24, 1641: 25, 1642: 26, 1643: 27, 1729: 12, 1730: 13, 1731: 14, 1732: 15, 1733: 16, 1734: 17, 1735: 18, 1736: 19, 1737: 20, 1738: 21, 1739: 22, 1740: 23, 1741: 24, 1742: 25, 1743: 26, 1744: 27, 1745: 28, 1829: 11, 1830: 12, 1831: 13, 1832: 14, 1833: 15, 1834: 16, 1835: 17, 1836: 18, 1837: 19, 1838: 20, 1839: 21, 1840: 22, 1841: 23, 1842: 24, 1843: 25, 1844: 26, 1845: 27, 1846: 28, 1847: 29, 1929: 10, 1930: 11, 1931: 12, 1932: 13, 1933: 14, 1934: 15, 1935: 16, 1936: 17, 1937: 18, 1938: 19, 1939: 20, 1940: 21, 1941: 22, 1942: 23, 1943: 24, 1944: 25, 1945: 26, 1946: 27, 1947: 28, 1948: 29, 1949: 30, 2030: 10, 2031: 11, 2032: 12, 2033: 13, 2034: 14, 2035: 15, 2036: 16, 2037: 17, 2038: 18, 2039: 19, 2040: 20, 2041: 21, 2042: 22, 2043: 23, 2044: 24, 2045: 25, 2046: 26, 2047: 27, 2048: 28, 2049: 29, 2050: 30, 2130: 9, 2131: 10, 2132: 11, 2133: 12, 2134: 13, 2135: 14, 2136: 15, 2137: 16, 2138: 17, 2139: 18, 2140: 19, 2141: 20, 2142: 21, 2143: 22, 2144: 23, 2145: 24, 2146: 25, 2147: 26, 2148: 27, 2149: 28, 2150: 29, 2151: 30, 2152: 31, 2231: 9, 2232: 10, 2233: 11, 2234: 12, 2235: 13, 2236: 14, 2237: 15, 2238: 16, 2239: 17, 2240: 18, 2241: 19, 2242: 20, 2243: 21, 2244: 22, 2245: 23, 2246: 24, 2247: 25, 2248: 26, 2249: 27, 2250: 28, 2251: 29, 2252: 30, 2253: 31, 2332: 9, 2333: 10, 2334: 11, 2335: 12, 2336: 13, 2337: 14, 2338: 15, 2339: 16, 2340: 17, 2341: 18, 2342: 19, 2343: 20, 2344: 21, 2345: 22, 2346: 23, 2347: 24, 2348: 25, 2349: 26, 2350: 27, 2351: 28, 2352: 29, 2353: 30, 2354: 31, 2433: 9, 2434: 10, 2435: 11, 2436: 12, 2437: 13, 2438: 14, 2439: 15, 2440: 16, 2441: 17, 2442: 18, 2443: 19, 2444: 20, 2445: 21, 2446: 22, 2447: 23, 2448: 24, 2449: 25, 2450: 26, 2451: 27, 2452: 28, 2453: 29, 2454: 30, 2455: 31, 2534: 9, 2535: 10, 2536: 11, 2537: 12, 2538: 13, 2539: 14, 2540: 15, 2541: 16, 2542: 17, 2543: 18, 2544: 19, 2545: 20, 2546: 21, 2547: 22, 2548: 23, 2549: 24, 2550: 25, 2551: 26, 2552: 27, 2553: 28, 2554: 29, 2555: 30, 2556: 31, 2635: 9, 2636: 10, 2637: 11, 2638: 12, 2639: 13, 2640: 14, 2641: 15, 2642: 16, 2643: 17, 2644: 18, 2645: 19, 2646: 20, 2647: 21, 2648: 22, 2649: 23, 2650: 24, 2651: 25, 2652: 26, 2653: 27, 2654: 28, 2655: 29, 2656: 30, 2657: 31, 2736: 9, 2737: 10, 2738: 11, 2739: 12, 2740: 13, 2741: 14, 2742: 15, 2743: 16, 2744: 17, 2745: 18, 2746: 19, 2747: 20, 2748: 21, 2749: 22, 2750: 23, 2751: 24, 2752: 25, 2753: 26, 2754: 27, 2755: 28, 2756: 29, 2757: 30, 2758: 31, 2838: 10, 2839: 11, 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3356: 23, 3357: 24, 3358: 25, 3359: 26, 3449: 15, 3450: 16, 3451: 17, 3452: 18, 3453: 19, 3454: 20, 3455: 21, 3456: 22, 3457: 23, 3458: 24, 3459: 25, 3552: 17, 3553: 18, 3554: 19, 3555: 20, 3556: 21, 3557: 22, 3558: 23}, 'val': {1330: 0.125034281657218, 1331: 0.146510549278435, 1332: 0.162798225597306, 1333: 0.174141647494022, 1334: 0.175649673690869, 1335: 0.169901008313413, 1336: 0.156392033004264, 1429: 0.131842483174851, 1430: 0.168225672551844, 1431: 0.201932264222645, 1432: 0.230401100785872, 1433: 0.252078330958949, 1434: 0.263985604687325, 1435: 0.268051528143263, 1436: 0.261530095653356, 1437: 0.244930296570094, 1438: 0.22009207169948, 1439: 0.187549231922949, 1529: 0.153095858004675, 1530: 0.199874035729114, 1531: 0.244757701084213, 1532: 0.284558765396655, 1533: 0.316793180984846, 1534: 0.340149023909276, 1535: 0.354084472188351, 1536: 0.358058903246401, 1537: 0.351864695441206, 1538: 0.335968837974345, 1539: 0.310613255308736, 1540: 0.27544685078461, 1541: 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dfp=df_a.pivot("x","y","val")
sns.heatmap(dfp,center=0,square=True)
x_center=(0.5*(max(df_a['x'])+min(df_a['x'])))
y_center=(0.5*(max(df_a['y'])+min(df_a['y'])))
radius=10
