go-quantized-mesh/tilejson.go at master · flywave/go-quantized-mesh · GitHub

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package terrain

type Available struct {
	StartX uint32 `json:"startX"`
	StartY uint32 `json:"startY"`
	EndX   uint32 `json:"endX"`
	EndY   uint32 `json:"endY"`
}

type TileJson struct {
	Tilejson    string         `json:"tilejson"`
	Name        *string        `json:"name,omitempty"`
	Version     string         `json:"version,omitempty"`
	Format      string         `json:"format,omitempty"`
	Attribution interface{}    `json:"attribution,omitempty"`
	Scheme      string         `json:"scheme,omitempty"`
	Tiles       []string       `json:"tiles"`
	Minzoom     *int           `json:"minzoom,omitempty"`
	Maxzoom     *int           `json:"maxzoom,omitempty"`
	Bounds      []float64      `json:"bounds,omitempty"`
	Projection  string         `json:"projection"`
	Available   [][]*Available `json:"available"`
	Extensions  []string       `json:"extensions,omitempty"`
}

func NewTileJson(name string, minzoom int, maxzoom int, available [][]*Available, baseUrls []string, flag TerrainExtensionFlag) *TileJson {
	var ext []string
	if (flag & Ext_Light) > 0 {
		ext = append(ext, "octvertexnormals")
		ext = append(ext, "vertexnormals")
	}
	if (flag & Ext_WaterMask) > 0 {
		ext = append(ext, "watermask")
	}
	if (flag & Ext_Metadata) > 0 {
		ext = append(ext, "metadata")
	}
	return &TileJson{
		Tilejson:   "2.1.0",
		Name:       &name,
		Version:    "0.0.1",
		Format:     "quantized-mesh-1.0",
		Tiles:      baseUrls,
		Minzoom:    &minzoom,
		Maxzoom:    &maxzoom,
		Bounds:     []float64{-180, -90, 180, 90},
		Projection: "EPSG:4326",
		Scheme:     "tms",
		Available:  available,
		Extensions: ext,
	}
}