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<template>
<Line :data="chartData" :options="chartOptions" ref="chartRef" />
</template>
<script setup>
import { Line } from 'vue-chartjs'
import {
Chart as ChartJS,
Title,
Tooltip,
Legend,
LineElement,
PointElement,
LinearScale,
CategoryScale
} from 'chart.js'
import { ref, reactive } from 'vue'
// Chart.js Module registrieren
ChartJS.register(Title, Tooltip, Legend, LineElement, PointElement, LinearScale, CategoryScale)
// Refs und Props
const chartRef = ref()
const props = defineProps({
msg: String,
})
// Chart-Daten
const chartData = reactive({
labels: [],
datasets: [
{
label: 'co2',
data: [],
borderColor: 'rgb(255, 99, 132)',
tension: 0.1
},
{
label: 'humidity',
data: [],
borderColor: 'rgb(54, 162, 235)',
tension: 0.1
},
{
label: 'temperature',
data: [],
borderColor: 'rgb(255, 206, 86)',
tension: 0.1
}
]
})
// Chart-Optionen
const chartOptions = {
responsive: true,
animation: false,
scales: {
y: {
beginAtZero: true
}
}
}
// Methoden nach außen freigeben
defineExpose({
chartData,
updateChart: () => chartRef.value?.chart?.update()
})
</script>
<style scoped>
</style>