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This commit is contained in:
Tim Schaub
2017-12-11 16:29:33 -07:00
parent 1cdb6a66f0
commit 7f47883c48
737 changed files with 22216 additions and 21609 deletions
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src/ol/geom/flat/geodesic.js
+29 -26
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@@ -1,7 +1,9 @@
goog.provide('ol.geom.flat.geodesic');
goog.require('ol.math');
goog.require('ol.proj');
/**
* @module ol/geom/flat/geodesic
*/
import _ol_math_ from '../../math.js';
import _ol_proj_ from '../../proj.js';
var _ol_geom_flat_geodesic_ = {};
/**
@@ -12,7 +14,7 @@ goog.require('ol.proj');
* @param {number} squaredTolerance Squared tolerance.
* @return {Array.<number>} Flat coordinates.
*/
ol.geom.flat.geodesic.line_ = function(interpolate, transform, squaredTolerance) {
_ol_geom_flat_geodesic_.line_ = function(interpolate, transform, squaredTolerance) {
// FIXME reduce garbage generation
// FIXME optimize stack operations
@@ -57,7 +59,7 @@ ol.geom.flat.geodesic.line_ = function(interpolate, transform, squaredTolerance)
fracM = (fracA + fracB) / 2;
geoM = interpolate(fracM);
m = transform(geoM);
if (ol.math.squaredSegmentDistance(m[0], m[1], a[0], a[1],
if (_ol_math_.squaredSegmentDistance(m[0], m[1], a[0], a[1],
b[0], b[1]) < squaredTolerance) {
// If the m point is sufficiently close to the straight line, then we
// discard it. Just use the b coordinate and move on to the next line
@@ -88,20 +90,20 @@ ol.geom.flat.geodesic.line_ = function(interpolate, transform, squaredTolerance)
* @param {number} squaredTolerance Squared tolerance.
* @return {Array.<number>} Flat coordinates.
*/
ol.geom.flat.geodesic.greatCircleArc = function(
_ol_geom_flat_geodesic_.greatCircleArc = function(
lon1, lat1, lon2, lat2, projection, squaredTolerance) {
var geoProjection = ol.proj.get('EPSG:4326');
var geoProjection = _ol_proj_.get('EPSG:4326');
var cosLat1 = Math.cos(ol.math.toRadians(lat1));
var sinLat1 = Math.sin(ol.math.toRadians(lat1));
var cosLat2 = Math.cos(ol.math.toRadians(lat2));
var sinLat2 = Math.sin(ol.math.toRadians(lat2));
var cosDeltaLon = Math.cos(ol.math.toRadians(lon2 - lon1));
var sinDeltaLon = Math.sin(ol.math.toRadians(lon2 - lon1));
var cosLat1 = Math.cos(_ol_math_.toRadians(lat1));
var sinLat1 = Math.sin(_ol_math_.toRadians(lat1));
var cosLat2 = Math.cos(_ol_math_.toRadians(lat2));
var sinLat2 = Math.sin(_ol_math_.toRadians(lat2));
var cosDeltaLon = Math.cos(_ol_math_.toRadians(lon2 - lon1));
var sinDeltaLon = Math.sin(_ol_math_.toRadians(lon2 - lon1));
var d = sinLat1 * sinLat2 + cosLat1 * cosLat2 * cosDeltaLon;
return ol.geom.flat.geodesic.line_(
return _ol_geom_flat_geodesic_.line_(
/**
* @param {number} frac Fraction.
* @return {ol.Coordinate} Coordinate.
@@ -117,11 +119,11 @@ ol.geom.flat.geodesic.greatCircleArc = function(
var x = cosLat1 * sinLat2 - sinLat1 * cosLat2 * cosDeltaLon;
var theta = Math.atan2(y, x);
var lat = Math.asin(sinLat1 * cosD + cosLat1 * sinD * Math.cos(theta));
var lon = ol.math.toRadians(lon1) +
var lon = _ol_math_.toRadians(lon1) +
Math.atan2(Math.sin(theta) * sinD * cosLat1,
cosD - sinLat1 * Math.sin(lat));
return [ol.math.toDegrees(lon), ol.math.toDegrees(lat)];
}, ol.proj.getTransform(geoProjection, projection), squaredTolerance);
return [_ol_math_.toDegrees(lon), _ol_math_.toDegrees(lat)];
}, _ol_proj_.getTransform(geoProjection, projection), squaredTolerance);
};
@@ -134,9 +136,9 @@ ol.geom.flat.geodesic.greatCircleArc = function(
* @param {number} squaredTolerance Squared tolerance.
* @return {Array.<number>} Flat coordinates.
*/
ol.geom.flat.geodesic.meridian = function(lon, lat1, lat2, projection, squaredTolerance) {
var epsg4326Projection = ol.proj.get('EPSG:4326');
return ol.geom.flat.geodesic.line_(
_ol_geom_flat_geodesic_.meridian = function(lon, lat1, lat2, projection, squaredTolerance) {
var epsg4326Projection = _ol_proj_.get('EPSG:4326');
return _ol_geom_flat_geodesic_.line_(
/**
* @param {number} frac Fraction.
* @return {ol.Coordinate} Coordinate.
@@ -144,7 +146,7 @@ ol.geom.flat.geodesic.meridian = function(lon, lat1, lat2, projection, squaredTo
function(frac) {
return [lon, lat1 + ((lat2 - lat1) * frac)];
},
ol.proj.getTransform(epsg4326Projection, projection), squaredTolerance);
_ol_proj_.getTransform(epsg4326Projection, projection), squaredTolerance);
};
@@ -157,9 +159,9 @@ ol.geom.flat.geodesic.meridian = function(lon, lat1, lat2, projection, squaredTo
* @param {number} squaredTolerance Squared tolerance.
* @return {Array.<number>} Flat coordinates.
*/
ol.geom.flat.geodesic.parallel = function(lat, lon1, lon2, projection, squaredTolerance) {
var epsg4326Projection = ol.proj.get('EPSG:4326');
return ol.geom.flat.geodesic.line_(
_ol_geom_flat_geodesic_.parallel = function(lat, lon1, lon2, projection, squaredTolerance) {
var epsg4326Projection = _ol_proj_.get('EPSG:4326');
return _ol_geom_flat_geodesic_.line_(
/**
* @param {number} frac Fraction.
* @return {ol.Coordinate} Coordinate.
@@ -167,5 +169,6 @@ ol.geom.flat.geodesic.parallel = function(lat, lon1, lon2, projection, squaredTo
function(frac) {
return [lon1 + ((lon2 - lon1) * frac), lat];
},
ol.proj.getTransform(epsg4326Projection, projection), squaredTolerance);
_ol_proj_.getTransform(epsg4326Projection, projection), squaredTolerance);
};
export default _ol_geom_flat_geodesic_;