// Generates all the files that make up the zip-code index. This is
// a heirarchical directory/file structure that allows auto-suggest
// to work with just static files.
func WriteZipIndex(dir string, grid *Grid, n int) error {
var zips []*zipIndexEntry
// build a list of zips
for i := 0; i < grid.W; i++ {
for j := 0; j < grid.H; j++ {
r := grid.Grid[i][j]
if r == nil {
continue
}
for _, zip := range r.Zips {
zips = append(zips, &zipIndexEntry{
Zip: zip,
I: r.I,
J: r.J,
})
}
}
}
// sort by descending population
util.Sort(len(zips), func(i, j int) bool {
return zips[j].Pop < zips[i].Pop
}, func(i, j int) {
zips[i], zips[j] = zips[j], zips[i]
})
return writeZipFiles(dir, "", n, zips)
}
// Sort a list of station locations by their distance to a particular point.
func SortStationLocs(locs []*StationLoc, x, y float64) {
dist := make([]float64, len(locs))
for i, loc := range locs {
dist[i] = Distance(loc.X, loc.Y, x, y)
}
util.Sort(len(locs),
func(i, j int) bool {
return dist[i] < dist[j]
},
func(i, j int) {
locs[i], locs[j] = locs[j], locs[i]
dist[i], dist[j] = dist[j], dist[i]
})
}
// Most of the work will be done here as this computes that data for and writes the
// stats files for each region.
func WriteStatsFiles(dir string, store *gsod.Store, grid *Grid, tp *TempPref) error {
m := map[string][][12]Pct{}
for _, station := range store.Stations {
m[station.Id()] = make([][12]Pct, len(store.Years))
}
for i, year := range store.Years {
fmt.Printf("%d\n", year)
if err := store.ForEachSummaryInYear(year, func(s *gsod.Summary) error {
month := s.Day.Month() - 1
p := &m[s.Station.Id()][i][month]
if IsPleasant(s, tp) {
p.A++
}
p.B++
return nil
}); err != nil {
return err
}
}
rm := NewRegionStatsMap()
var overall []*RegionStats
for i := 0; i < grid.W; i++ {
for j := 0; j < grid.H; j++ {
r := grid.Grid[i][j]
if r == nil {
continue
}
var allYears [12]Pct
for y := 0; y < len(store.Years); y++ {
var thisYear [12]Pct
for _, station := range r.Nearest {
s := m[station.Id()]
for m := 0; m < 12; m++ {
thisYear[m].A += s[y][m].A
thisYear[m].B += s[y][m].B
allYears[m].A += s[y][m].A
allYears[m].B += s[y][m].B
}
}
}
rs := toRegionStats(r, allYears)
rm.Put(rs)
overall = append(overall, rs)
}
}
hackKeyLargo(rm)
util.Sort(len(overall),
func(i, j int) bool {
return overall[i].Total > overall[j].Total
}, func(i, j int) {
overall[i], overall[j] = overall[j], overall[i]
})
var s struct {
W int
H int
Regions []*RegionStats
}
s.W = grid.W
s.H = grid.H
s.Regions = overall
return WriteJson(filepath.Join(dir, fmt.Sprintf("%s.json", tp.Name)), &s)
}
// Produce a text label for the region (i,j). First try to find a major
// city in the region. If there is not one, we're going to try to produce
// a relative name (i.e. EAST OF RENO).
func LabelFor(g *Grid, i, j int) string {
name, _ := MajorCityOf(g, i, j)
if name != "" {
return name
}
var names []string
var pops []int
lookWest, lookEast, lookNorth, lookSouth := i > 0, i < (g.W-1), j > 0, j < (g.H-1)
// east?
if lookWest {
if name, pop := MajorCityOf(g, i-1, j); name != "" {
names = append(names, fmt.Sprintf("EAST OF %s", name))
pops = append(pops, pop)
}
if lookNorth {
if name, pop := MajorCityOf(g, i-1, j-1); name != "" {
names = append(names, fmt.Sprintf("SE OF %s", name))
pops = append(pops, pop)
}
}
if lookSouth {
if name, pop := MajorCityOf(g, i-1, j+1); name != "" {
names = append(names, fmt.Sprintf("NE OF %s", name))
pops = append(pops, pop)
}
}
}
// west?
if lookEast {
if name, pop := MajorCityOf(g, i+1, j); name != "" {
names = append(names, fmt.Sprintf("WEST OF %s", name))
pops = append(pops, pop)
}
if lookNorth {
if name, pop := MajorCityOf(g, i+1, j-1); name != "" {
names = append(names, fmt.Sprintf("SW OF %s", name))
pops = append(pops, pop)
}
}
if lookSouth {
if name, pop := MajorCityOf(g, i+1, j+1); name != "" {
names = append(names, fmt.Sprintf("NW OF %s", name))
pops = append(pops, pop)
}
}
}
// south?
if lookNorth {
if name, pop := MajorCityOf(g, i, j-1); name != "" {
names = append(names, fmt.Sprintf("SOUTH OF %s", name))
pops = append(pops, pop)
}
}
// north?
if lookSouth {
if name, pop := MajorCityOf(g, i, j+1); name != "" {
names = append(names, fmt.Sprintf("NORTH OF %s", name))
pops = append(pops, pop)
}
}
if len(names) == 0 {
return ""
}
util.Sort(len(names),
func(i, j int) bool {
return pops[j] < pops[i]
}, func(i, j int) {
names[i], names[j] = names[j], names[i]
pops[i], pops[j] = pops[j], pops[i]
})
return names[0]
}