Add graph: mean yearly temperature vs NDVI

Author: Till1983

frontend/src/components/CorrelationGraphs/YearlyTemperatureNdviCorrelation.vue

@@ -0,0 +1,128 @@
+<template>
+    <v-container>
+      <h2 class="pb-10">Yearly NDVI vs. Temperature</h2>
+      <v-row justify="center">
+        <div ref="plotContainer" style="width: 100%; height: 400px" class="d-flex justify-center"></div>
+      </v-row>
+    </v-container>
+  </template>
+  
+  <script>
+import axios from 'axios';
+import Plotly from 'plotly.js-dist-min';
+import { onMounted, ref, watch } from 'vue';
+
+export default {
+  name: 'YearlyNdviTemperaturePlot',
+  setup() {
+    const temperatureData = ref(null);
+    const ndviData = ref(null);
+    const plotContainer = ref(null);
+    const startDate = ref(1514764800); // 2018-01-01
+    const endDate = ref(1733007599); // 2024-11-30
+
+    const fetchTemperatureData = async () => {
+      const apiUrl = 'https://thf-climate-run-1020174331409.europe-west3.run.app/weather/index';
+      const params = {
+        weatherVariable: 'temperature_2m',
+        startDate: startDate.value,
+        endDate: endDate.value,
+        location: 'TEMPELHOFER_FELD',
+        temporalResolution: 'MONTHLY',
+        aggregation: 'MEAN',
+      };
+      try {
+        const response = await axios.get(apiUrl, { params });
+        temperatureData.value = response.data;
+      } catch (error) {
+        console.error('Error fetching temperature data:', error);
+      }
+    };
+
+    const fetchNdviData = async () => {
+      const apiUrl = 'https://thf-climate-run-1020174331409.europe-west3.run.app/index/ndvi';
+      const params = {
+        startDate: startDate.value,
+        endDate: endDate.value,
+        location: 'TEMPELHOFER_FELD',
+        temporalResolution: 'MONTHLY',
+        aggregation: 'MEAN',
+      };
+      try {
+        const response = await axios.get(apiUrl, { params });
+        ndviData.value = response.data;
+      } catch (error) {
+        console.error('Error fetching NDVI data:', error);
+      }
+    };
+
+    const calculateYearlyAverages = (data) => {
+      const yearlyData = {};
+      data.forEach((entry) => {
+        const year = new Date(entry.timestamp * 1000).getFullYear();
+        if (!yearlyData[year]) yearlyData[year] = { sum: 0, count: 0 };
+        yearlyData[year].sum += entry.value;
+        yearlyData[year].count += 1;
+      });
+      return Object.entries(yearlyData).map(([year, { sum, count }]) => ({
+        year: parseInt(year, 10),
+        average: sum / count,
+      }));
+    };
+
+    const renderPlot = () => {
+      if (temperatureData.value && ndviData.value) {
+        const yearlyTemperature = calculateYearlyAverages(temperatureData.value.data);
+        const yearlyNdvi = calculateYearlyAverages(ndviData.value.data);
+
+        const tempTrace = {
+          x: yearlyTemperature.map((e) => e.year),
+          y: yearlyTemperature.map((e) => e.average),
+          mode: 'lines+markers',
+          name: 'Temperature (°C)',
+          marker: { color: 'red', size: 7, symbol: 'square' },
+          hoverinfo: 'text',
+          text: yearlyTemperature.map((e) => `${e.average.toFixed(2)}°C`)
+        };
+
+        const ndviTrace = {
+          x: yearlyNdvi.map((e) => e.year),
+          y: yearlyNdvi.map((e) => e.average),
+          mode: 'lines+markers',
+          name: 'NDVI',
+          line: { color: 'blue' },
+          yaxis: 'y2',
+          hoverinfo: 'text',
+          text: yearlyNdvi.map((e) => `${e.average.toFixed(2)}`)
+        };
+
+        const layout = {
+          title: 'Yearly NDVI vs. Temperature (2018-2024)',
+          xaxis: { title: 'Year', type: 'category' },
+          yaxis: { title: 'Temperature (°C)' },
+          yaxis2: { title: 'NDVI', overlaying: 'y', side: 'right' },
+          template: 'plotly_white',
+        };
+
+        Plotly.newPlot(plotContainer.value, [tempTrace, ndviTrace], layout);
+      }
+    };
+
+    onMounted(() => {
+      fetchTemperatureData();
+      fetchNdviData();
+    });
+
+    watch([temperatureData, ndviData], ([temp, ndvi]) => {
+      if (temp && ndvi) renderPlot();
+    });
+
+    return { plotContainer };
+  },
+};
+
+
+  </script>
+  
+  <style scoped></style>
+  

frontend/src/components/MainSection.vue

@@ -1,5 +1,6 @@
 <template>
   <v-container class="main-section" fluid>
+    <YearlyNdviTemperaturePlot />
     <TemperatureNdviBarAndLine />
     <TemperatureNdviScatter />
     <TempDifferenceGraph />
@@ -32,11 +33,13 @@ import TemperatureNdviScatter from "./CorrelationGraphs/TemperatureNdviScatter.v
 import TempDifferenceGraph from "./WeatherGraphs/TempDifferenceGraph.vue"
 import SoilTempDifferenceGraph from "./WeatherGraphs/SoilTempDifferenceGraph.vue"
 import NdviDifferenceGraph from "./NdviGraphs/NdviDifferenceGraph.vue"
+import YearlyNdviTemperaturePlot from "./CorrelationGraphs/YearlyTemperatureNdviCorrelation.vue"
 
 export default {
   name: 'MainSection',
   components: {
     Images,
+    YearlyNdviTemperaturePlot,
     NdviComparisonGraph,
     NdviSelectMonthGraph,
     NdviOverlayGraph,