Change radial graph orientation according to cardinal points

[EmmanuelleKerjouan]

Our aim is to create a radal plot oriented according to the points of the compass. We've made a first attempt that works well. However, we wanted to know if it was possible to place the cardinal points at the right angle, and thus position the N...

Here is the json of the current graph :
{
"$schema": "https://vega.github.io/schema/vega-lite/v5.json",
"description": "A simple radial chart with embedded data.",
"data": {
"values": [
{"category": "N", "value": 236142.1},
{"category": "NNE", "value": 198490.641},
{"category": "NE", "value": 180178.693},
{"category": "ENE", "value": 225907.263},
{"category": "E", "value": 285517.046},
{"category": "ESE", "value": 314869.103},
{"category": "SE", "value": 401478.068},
{"category": "SSE", "value": 329396.276},
{"category": "S", "value": 208707.178},
{"category": "SSW", "value": 359787.985},
{"category": "SW", "value": 153546.442},
{"category": "WSW", "value": 93985.971},
{"category": "W", "value": 51060.691},
{"category": "WNW", "value": 107711.766},
{"category": "NW", "value": 309127.719},
{"category": "NNW", "value": 449500.89}
]
},
"layer": [{
"mark": {"type": "arc", "innerRadius": 20, "stroke": "#55759a"}
},{
"mark": {"type": "text", "radiusOffset": 20},
"encoding": {
"text": {"field": "category", "type": "nominal"}
}
}],
"encoding": {
"theta":{"field":"category"},
"radius": {"field": "value", "scale": {"type": "sqrt", "zero": true, "rangeMin": 5}}, "color": {"value": "#87afe0"}

}
}

Thanks in advance