mirror of
https://github.com/flopp/go-staticmaps.git
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99 lines
3.3 KiB
Go
99 lines
3.3 KiB
Go
// Copyright 2016 Florian Pigorsch. All rights reserved.
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//
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package sm
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import "fmt"
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// TileProvider encapsulates all infos about a map tile provider service (name, url scheme, attribution, etc.)
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type TileProvider struct {
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Name string
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Attribution string
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TileSize int
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URLPattern string // "%[1]s" => shard, "%[2]d" => zoom, "%[3]d" => x, "%[4]d" => y
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Shards []string
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}
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func (t *TileProvider) getURL(shard string, zoom, x, y int) string {
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return fmt.Sprintf(t.URLPattern, shard, zoom, x, y)
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}
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// NewTileProviderMapQuest creates a TileProvider struct for mapquest's tile service
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func NewTileProviderMapQuest() *TileProvider {
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t := new(TileProvider)
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t.Name = "mapquest"
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t.Attribution = "Maps (c) MapQuest; Data (c) OSM and contributors, ODbL"
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t.TileSize = 256
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t.URLPattern = "http://otile%[1]s.mqcdn.com/tiles/1.0.0/osm/%[2]d/%[3]d/%[4]d.png"
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t.Shards = []string{"1", "2", "3", "4"}
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return t
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}
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func newTileProviderThunderforest(name string) *TileProvider {
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t := new(TileProvider)
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t.Name = fmt.Sprintf("thunderforest-%s", name)
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t.Attribution = "Maps (c) Thundeforest; Data (c) OSM and contributors, ODbL"
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t.TileSize = 256
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t.URLPattern = "https://%[1]s.tile.thunderforest.com/" + name + "/%[2]d/%[3]d/%[4]d.png"
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t.Shards = []string{"a", "b", "c"}
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return t
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}
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// NewTileProviderThunderforestLandscape creates a TileProvider struct for thundeforests's 'landscape' tile service
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func NewTileProviderThunderforestLandscape() *TileProvider {
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return newTileProviderThunderforest("landscape")
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}
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// NewTileProviderThunderforestOutdoors creates a TileProvider struct for thundeforests's 'outdoors' tile service
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func NewTileProviderThunderforestOutdoors() *TileProvider {
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return newTileProviderThunderforest("outdoors")
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}
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// NewTileProviderThunderforestTransport creates a TileProvider struct for thundeforests's 'transport' tile service
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func NewTileProviderThunderforestTransport() *TileProvider {
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return newTileProviderThunderforest("transport")
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}
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// NewTileProviderStamenToner creates a TileProvider struct for stamens' 'toner' tile service
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func NewTileProviderStamenToner() *TileProvider {
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t := new(TileProvider)
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t.Name = "stamen-toner"
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t.Attribution = "Maps (c) Stamen; Data (c) OSM and contributors, ODbL"
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t.TileSize = 256
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t.URLPattern = "http://%[1]s.tile.stamen.com/toner/%[2]d/%[3]d/%[4]d.png"
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t.Shards = []string{"a", "b", "c", "d"}
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return t
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}
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// NewTileProviderOpenTopoMap creates a TileProvider struct for opentopomaps's tile service
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func NewTileProviderOpenTopoMap() *TileProvider {
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t := new(TileProvider)
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t.Name = "opentopomap"
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t.Attribution = "Maps (c) OpenTopoMap [CC-BY-SA]; Data (c) OSM and contributors [ODbL]; Data (c) SRTM"
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t.TileSize = 256
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t.URLPattern = "http://%[1].tile.opentopomap.org/%[2]d/%[3]d/%[4]d.png"
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t.Shards = []string{"a", "b", "c"}
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return t
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}
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// GetTileProviders returns a map of all available TileProviders
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func GetTileProviders() map[string]*TileProvider {
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m := make(map[string]*TileProvider)
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list := []*TileProvider{
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NewTileProviderMapQuest(),
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NewTileProviderThunderforestLandscape(),
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NewTileProviderThunderforestOutdoors(),
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NewTileProviderThunderforestTransport(),
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NewTileProviderStamenToner(),
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NewTileProviderOpenTopoMap()}
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for _, tp := range list {
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m[tp.Name] = tp
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}
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return m
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}
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