40 lines
784 B
Go
40 lines
784 B
Go
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package htmlpage
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import (
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"fmt"
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"strings"
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"github.com/uber/h3-go/v4"
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)
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func gisStatement(cb h3.CellBoundary) string {
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var content strings.Builder
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for i, p := range cb {
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if i != 0 {
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content.WriteString(", ")
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}
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content.WriteString(fmt.Sprintf("%f %f", p.Lng, p.Lat))
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}
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// Repeat the first coordinate to close the polygon
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content.WriteString(fmt.Sprintf(", %f %f", cb[0].Lng, cb[0].Lat))
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return fmt.Sprintf("ST_GeomFromText('POLYGON((%s))', 3857)", content.String())
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}
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func latLngDisplay(ll h3.LatLng) string {
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latDir := "N"
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latVal := ll.Lat
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if ll.Lat < 0 {
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latDir = "S"
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latVal = -ll.Lat
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}
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lngDir := "E"
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lngVal := ll.Lng
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if ll.Lng < 0 {
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lngDir = "W"
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lngVal = -ll.Lng
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}
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return fmt.Sprintf("%.4f° %s, %.4f° %s", latVal, latDir, lngVal, lngDir)
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}
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