本文整理汇总了TypeScript中core/util/projections.wgs84_mercator类的典型用法代码示例。如果您正苦于以下问题：TypeScript wgs84_mercator类的具体用法？TypeScript wgs84_mercator怎么用？TypeScript wgs84_mercator使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了wgs84_mercator类的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的TypeScript代码示例。
示例1: get_ticks_no_defaults
get_ticks_no_defaults(data_low: number, data_high: number, cross_loc: any, desired_n_ticks: number) {
if (this.dimension == null) {
throw new Error("MercatorTicker.dimension not configured")
}
[data_low, data_high] = clip_mercator(data_low, data_high, this.dimension)
let proj_low: number, proj_high: number, proj_cross_loc: any
if (this.dimension === "lon") {
[proj_low, proj_cross_loc] = wgs84_mercator.inverse([data_low, cross_loc]);
[proj_high, proj_cross_loc] = wgs84_mercator.inverse([data_high, cross_loc])
} else {
[proj_cross_loc, proj_low ] = wgs84_mercator.inverse([cross_loc, data_low ]);
[proj_cross_loc, proj_high] = wgs84_mercator.inverse([cross_loc, data_high])
}
const proj_ticks = super.get_ticks_no_defaults(proj_low, proj_high, cross_loc, desired_n_ticks)
const major: number[] = []
const minor: number[] = []
if (this.dimension === "lon") {
for (const tick of proj_ticks.major) {
if (in_bounds(tick, 'lon')) {
const [lon] = wgs84_mercator.forward([tick, proj_cross_loc])
major.push(lon)
}
}
for (const tick of proj_ticks.minor) {
if (in_bounds(tick, 'lon')) {
const [lon] = wgs84_mercator.forward([tick, proj_cross_loc])
minor.push(lon)
}
}
} else {
for (const tick of proj_ticks.major) {
if (in_bounds(tick, 'lat')) {
const [, lat] = wgs84_mercator.forward([proj_cross_loc, tick])
major.push(lat)
}
}
for (const tick of proj_ticks.minor) {
if (in_bounds(tick, 'lat')) {
const [, lat] = wgs84_mercator.forward([proj_cross_loc, tick])
minor.push(lat)
}
}
}
return {
major: major,
minor: minor,
}
}示例2: it
it("should compute longitude tick labels when dimension=lon", () => {
const obj = new MercatorTickFormatter({dimension: 'lon'})
for (const lat of [-72, -60.5, -30, -2, 1, -0.5, 0, 0.5, 1, 10, 33.7, 42.123, 50]) {
for (const lon of [-120, -90, -88, -32.7, -10, -1, 0, 0.5, 1, 5, 12.3, 57, 60.123, 95, 110.1, 120, 130]) {
const [mlon, mlat] = wgs84_mercator.forward([lon, lat])
const labels = obj.doFormat([mlon], {loc: mlat})
expect(labels[0]).to.equal(`${lon}`)
}
}
})示例3: doFormat
doFormat(ticks: number[], axis: Axis): string[] {
if (this.dimension == null)
throw new Error("MercatorTickFormatter.dimension not configured")
if (ticks.length == 0)
return []
const n = ticks.length
const proj_ticks = new Array(n)
if (this.dimension == "lon") {
for (let i = 0; i < n; i++) {
const [lon,] = wgs84_mercator.inverse([ticks[i], axis.loc])
proj_ticks[i] = lon
}
} else {
for (let i = 0; i < n; i++) {
const [, lat] = wgs84_mercator.inverse([axis.loc, ticks[i]])
proj_ticks[i] = lat
}
}
return super.doFormat(proj_ticks, axis)
}示例4: _get_projected_bounds
protected _get_projected_bounds(): [number, number, number, number] {
const [xstart, xend, ystart, yend] = this._get_latlon_bounds()
const [proj_xstart, proj_ystart] = wgs84_mercator.forward([xstart, ystart])
const [proj_xend, proj_yend] = wgs84_mercator.forward([xend, yend])
return [proj_xstart, proj_xend, proj_ystart, proj_yend]
}示例5: meters_to_geographic
export function meters_to_geographic(mx: number, my: number): [number, number] {
return wgs84_mercator.inverse([mx, my])
}示例6: geographic_to_meters
export function geographic_to_meters(xLon: number, yLat: number): [number, number] {
return wgs84_mercator.forward([xLon, yLat])
}