'; 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/roesrath/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 , 5 , 7 , 1 , 1 ]; qmPriceChartData.labels = [ "0 € / m² - 100 € / m²" , "100 € / m² - 200 € / m²" , "200 € / m² - 300 € / m²" , "300 € / m² - 400 € / m²" , "400 € / m²+" ]; qmPriceChartData.data = [ 0 , 0 , 3 , 0 , 11 ]; buildCharts(areaChartData, qmPriceChartData); new Chart(document.getElementById("trend-chart"), { type: 'line', data: { labels: [ 'Apr. 2021', 'Aug. 2021', 'Nov. 2021', 'Dez. 2021', 'Jan. 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', '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', 'Jan. 2025', 'Feb. 2025', 'März 2025' ], datasets: [ { label: " €/m² im Durchschnitt", borderColor: "#0b4b82", backgroundColor: "#0b4b82", tension: 0.3, data: [ 482.7347258721712 , 548.3303827761134 , 825.9081478125094 , 662.4635961319202 , 643.3946219116377 , 641.513435975883 , 632.6350535405804 , 690.925795054526 , 796.6063797875242 , 796.6063797875242 , 797.416699403369 , 813.7390325041808 , 685.2880099058851 , 713.9992101251062 , 665.6628004008805 , 569.9472908419465 , 608.972683303231 , 544.1548524126721 , 706.3427737703446 , 639.1844789158239 , 570.7899170542993 , 610.5814948919788 , 565.3684995249214 , 669.7248055964493 , 738.3842309222933 , 646.3901253752508 , 488.8530160119589 , 515.661187628971 , 584.4251983100869 , 726.2546621554924 , 581.8014028089675 , 644.5180290322102 , 727.1588714214289 , 860.1984778979368 , 633.7438414933979 ], yAxisID: 'y', }, { label: " €/m² Median", borderColor: "#76b4e8", backgroundColor: "#76b4e8", tension: 0.3, type: 'line', data: [ 580.9302325581396, 525.3940455341506, 985.7651245551601, 517.2413793103449, 517.2413793103449, 796.4352720450281, 653.6697247706422, 620, 695.1219512195122, 695.1219512195122, 676.0204081632653, 676.0204081632653, 676.0204081632653, 620, 590.9090909090909, 515, 515, 438.5964912280702, 791.6666666666666, 650.6550218340611, 495.6709956709957, 511.3636363636364, 483.3333333333333, 602.0408163265306, 650.6765067650676, 650.6765067650676, 437.36730360934183, 520.4081632653061, 569.8739977090493, 809.375, 629.8200514138817, 772.1238938053098, 775.8389261744967, 819.4444444444445, 819.4444444444445 ], } ] }, options: { legend: {display: true}, title: { display: true, text: 'Entwicklung der Quadratmeterpreise in Rösrath', fontSize: 16, fontStyle: "normal", fontFamily: "'Open Sans',sans-serif" } } }); });