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ol/geom/flat/orient export

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This commit is contained in:
raiyni
2018-02-13 08:57:35 -06:00
parent 9fc09db89c
commit 6573b308b6
8 changed files with 40 additions and 41 deletions
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src/ol/geom/flat/orient.js
+14 -16
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@@ -2,7 +2,6 @@
* @module ol/geom/flat/orient
*/
import {coordinates as reverseCoordinates} from '../flat/reverse.js';
const _ol_geom_flat_orient_ = {};
/**
@@ -12,7 +11,7 @@ const _ol_geom_flat_orient_ = {};
* @param {number} stride Stride.
* @return {boolean} Is clockwise.
*/
_ol_geom_flat_orient_.linearRingIsClockwise = function(flatCoordinates, offset, end, stride) {
export function linearRingIsClockwise(flatCoordinates, offset, end, stride) {
// http://tinyurl.com/clockwise-method
// https://github.com/OSGeo/gdal/blob/trunk/gdal/ogr/ogrlinearring.cpp
let edge = 0;
@@ -26,7 +25,7 @@ _ol_geom_flat_orient_.linearRingIsClockwise = function(flatCoordinates, offset,
y1 = y2;
}
return edge > 0;
};
}
/**
@@ -42,11 +41,11 @@ _ol_geom_flat_orient_.linearRingIsClockwise = function(flatCoordinates, offset,
* (counter-clockwise exterior ring and clockwise interior rings).
* @return {boolean} Rings are correctly oriented.
*/
_ol_geom_flat_orient_.linearRingsAreOriented = function(flatCoordinates, offset, ends, stride, opt_right) {
export function linearRingIsOriented(flatCoordinates, offset, ends, stride, opt_right) {
const right = opt_right !== undefined ? opt_right : false;
for (let i = 0, ii = ends.length; i < ii; ++i) {
const end = ends[i];
const isClockwise = _ol_geom_flat_orient_.linearRingIsClockwise(
const isClockwise = linearRingIsClockwise(
flatCoordinates, offset, end, stride);
if (i === 0) {
if ((right && isClockwise) || (!right && !isClockwise)) {
@@ -60,7 +59,7 @@ _ol_geom_flat_orient_.linearRingsAreOriented = function(flatCoordinates, offset,
offset = end;
}
return true;
};
}
/**
@@ -76,15 +75,15 @@ _ol_geom_flat_orient_.linearRingsAreOriented = function(flatCoordinates, offset,
* (counter-clockwise exterior ring and clockwise interior rings).
* @return {boolean} Rings are correctly oriented.
*/
_ol_geom_flat_orient_.linearRingssAreOriented = function(flatCoordinates, offset, endss, stride, opt_right) {
export function linearRingsAreOriented(flatCoordinates, offset, endss, stride, opt_right) {
for (let i = 0, ii = endss.length; i < ii; ++i) {
if (!_ol_geom_flat_orient_.linearRingsAreOriented(
if (!linearRingIsOriented(
flatCoordinates, offset, endss[i], stride, opt_right)) {
return false;
}
}
return true;
};
}
/**
@@ -100,11 +99,11 @@ _ol_geom_flat_orient_.linearRingssAreOriented = function(flatCoordinates, offset
* @param {boolean=} opt_right Follow the right-hand rule for orientation.
* @return {number} End.
*/
_ol_geom_flat_orient_.orientLinearRings = function(flatCoordinates, offset, ends, stride, opt_right) {
export function orientLinearRings(flatCoordinates, offset, ends, stride, opt_right) {
const right = opt_right !== undefined ? opt_right : false;
for (let i = 0, ii = ends.length; i < ii; ++i) {
const end = ends[i];
const isClockwise = _ol_geom_flat_orient_.linearRingIsClockwise(
const isClockwise = linearRingIsClockwise(
flatCoordinates, offset, end, stride);
const reverse = i === 0 ?
(right && isClockwise) || (!right && !isClockwise) :
@@ -115,7 +114,7 @@ _ol_geom_flat_orient_.orientLinearRings = function(flatCoordinates, offset, ends
offset = end;
}
return offset;
};
}
/**
@@ -131,11 +130,10 @@ _ol_geom_flat_orient_.orientLinearRings = function(flatCoordinates, offset, ends
* @param {boolean=} opt_right Follow the right-hand rule for orientation.
* @return {number} End.
*/
_ol_geom_flat_orient_.orientLinearRingss = function(flatCoordinates, offset, endss, stride, opt_right) {
export function orientLinearRingsArray(flatCoordinates, offset, endss, stride, opt_right) {
for (let i = 0, ii = endss.length; i < ii; ++i) {
offset = _ol_geom_flat_orient_.orientLinearRings(
offset = orientLinearRings(
flatCoordinates, offset, endss[i], stride, opt_right);
}
return offset;
};
export default _ol_geom_flat_orient_;
}