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Fix pie chart colors on Traffic Stops by Stop Purpose. #377

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Merged
simonkagwi merged 1 commit into from
Jan 27, 2026
Merged

Fix pie chart colors on Traffic Stops by Stop Purpose. #377

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31 changes: 14 additions & 17 deletions frontend/src/Components/Charts/TrafficStops/TrafficStops.js
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Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,6 @@ import {
STOP_TYPES,
RACE_TABLE_COLUMNS,
STOP_REASON_TABLE_COLUMNS,
STOP_PURPOSE_COLORS,
} from '../chartUtils';

// State
Expand Down Expand Up @@ -119,24 +118,11 @@ function TrafficStops(props) {
loading: true,
});

const purposeGroupedPieLabels = ['Safety Violation', 'Regulatory and Equipment', 'Other'];
const purposeGroupedPieColors = [
STOP_PURPOSE_COLORS.safteyViolation,
STOP_PURPOSE_COLORS.regulatoryEquipment,
STOP_PURPOSE_COLORS.other,
];
const purposeGroupedPieConfig = {
backgroundColor: purposeGroupedPieColors,
borderColor: purposeGroupedPieColors,
hoverBackgroundColor: purposeGroupedPieColors,
borderWidth: 1,
};
const [stopPurposeGroupedPieData, setStopPurposeGroupedPieData] = useState({
labels: purposeGroupedPieLabels,
labels: [],
datasets: [
{
data: [],
...purposeGroupedPieConfig,
},
],
});
Expand Down Expand Up @@ -382,10 +368,18 @@ function TrafficStops(props) {
};

const data = [];
const labels = [];
const backgroundColor = [];
const borderColor = [];
if (ds.labels && ds.labels.length) {
const safety = getValues(ds.datasets[0].data);
const regulatory = getValues(ds.datasets[1].data);
const other = getValues(ds.datasets[2].data);
ds.datasets.forEach((i) => {
labels.push(i.label);
backgroundColor.push(i.backgroundColor);
borderColor.push(i.borderColor);
});
const total = safety + regulatory + other;

const normalize = (n) => ((n / total) * 100).toFixed(4);
Expand All @@ -397,11 +391,14 @@ function TrafficStops(props) {
}
}
setStopPurposeGroupedPieData({
labels: purposeGroupedPieLabels,
labels,
datasets: [
{
data,
...purposeGroupedPieConfig,
backgroundColor,
borderColor,
hoverBackgroundColor: backgroundColor,
borderWidth: 1,
},
],
});
Expand Down