'; let req = new XMLHttpRequest(); req.onreadystatechange = function () { if (req.readyState === 4 && req.status === 200) { let result = JSON.parse(req.response); document.getElementById("landprices").innerHTML = result.data; buildCharts(result.charts.areaChartData, result.charts.qmPriceChartData); loading = false; } else if (req.readyState === 4) { loading = false; } }; const url = "/stadt/haseldorf/aggregation?year=" + val[1] + "&month=" + val[0]; req.open('GET', url, true); setTimeout(function () { req.send(); }, 1200); } }) } const areaChartData = { labels: [], data: [] }; const qmPriceChartData = { labels: [], data: [] }; areaChartData.labels = [ "0 m² - 100 m²" , "100 m² - 500 m²" , "500 m² - 1000 m²" , "1000 m² - 2000 m²" , "2000 m²+" ]; areaChartData.data = [ 0 , 1 , 4 , 7 , 4 ]; qmPriceChartData.labels = [ "0 € / m² - 100 € / m²" , "100 € / m² - 200 € / m²" , "200 € / m² - 300 € / m²" , "300 € / m² - 400 € / m²" , "400 € / m²+" ]; qmPriceChartData.data = [ 1 , 2 , 5 , 3 , 5 ]; buildCharts(areaChartData, qmPriceChartData); new Chart(document.getElementById("trend-chart"), { type: 'line', data: { labels: [ 'Apr. 2021', 'Aug. 2021', 'Nov. 2021', 'Dez. 2021', 'Jan. 2022', 'Feb. 2022', 'März 2022', 'Apr. 2022', 'Mai 2022', 'Juni 2022', 'Juli 2022', 'Aug. 2022', 'Sept. 2022', 'Okt. 2022', 'Nov. 2022', 'Dez. 2022', 'Jan. 2023', 'Feb. 2023', 'März 2023', 'Apr. 2023', 'Mai 2023', 'Juni 2023', 'Juli 2023', 'Aug. 2023', 'Sept. 2023', 'Okt. 2023', 'Nov. 2023', 'Dez. 2023', 'Jan. 2024', 'März 2024', 'Apr. 2024', 'Juli 2024', 'Sept. 2024', 'Nov. 2024', 'Dez. 2024', 'Feb. 2025', 'März 2025' ], datasets: [ { label: " €/m² im Durchschnitt", borderColor: "#0b4b82", backgroundColor: "#0b4b82", tension: 0.3, data: [ 1075.2915483111374 , 706.3540622503457 , 935.3707299009469 , 920.7464553819273 , 928.3659270325411 , 855.4885057251723 , 796.4239143767562 , 777.8335056494649 , 849.6437619472173 , 822.9664656428893 , 822.9664656428893 , 693.2332446075296 , 725.2520955510739 , 705.3734434230183 , 579.0419239762504 , 584.3747212986717 , 599.7754660995438 , 588.1357730175423 , 567.6735307731333 , 554.4198225947739 , 498.3359768794136 , 497.68715801891364 , 480.6433566368738 , 502.93201039157344 , 495.1735001953904 , 440.6488222849183 , 439.1391326065478 , 388.60870219607773 , 459.627628175884 , 699.0581046304623 , 533.855499578218 , 408.2924723342615 , 335.92368543033484 , 447.19106680400057 , 468.33199253592267 , 382.2297556161291 , 385.3713907380304 ], yAxisID: 'y', }, { label: " €/m² Median", borderColor: "#76b4e8", backgroundColor: "#76b4e8", tension: 0.3, type: 'line', data: [ 598.0357142857143, 623.644251626898, 890.4458598726114, 855.5691554467564, 855.5691554467564, 856.929955290611, 783.2618025751073, 748.8986784140969, 748.8636363636364, 748.8636363636364, 748.8636363636364, 667.7454153182308, 675.6756756756756, 633.0645161290323, 528.2485875706215, 519.5681511470985, 522.8122662677637, 527.027027027027, 530.5602716468591, 530.5602716468591, 421.1267605633803, 432.96985246953176, 432.96985246953176, 432.96985246953176, 410.2920723226704, 365.0700934579439, 399.2974238875878, 343.1034482758621, 409.2485549132948, 879.1208791208791, 772.4867724867725, 409.2485549132948, 285.7142857142857, 368.82617062219373, 471.59090909090907, 377.0739064856712, 334.4042056074766 ], } ] }, options: { legend: {display: true}, title: { display: true, text: 'Entwicklung der Quadratmeterpreise in Haseldorf', fontSize: 16, fontStyle: "normal", fontFamily: "'Open Sans',sans-serif" } } }); });