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ol/geom/flat/interpolate export

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This commit is contained in:
raiyni
2018-02-13 09:05:12 -06:00
parent 6573b308b6
commit abf191289c
5 changed files with 27 additions and 29 deletions
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6
src/ol/geom/LineString.js
View File

@@ -10,7 +10,7 @@ import SimpleGeometry from '../geom/SimpleGeometry.js';
import {assignClosestPoint, maxSquaredDelta} from '../geom/flat/closest.js';
import {deflateCoordinates} from '../geom/flat/deflate.js';
import {inflateCoordinates} from '../geom/flat/inflate.js';
import _ol_geom_flat_interpolate_ from '../geom/flat/interpolate.js';
import {interpolatePoint, lineStringCoordinateAtM} from '../geom/flat/interpolate.js';
import _ol_geom_flat_intersectsextent_ from '../geom/flat/intersectsextent.js';
import {lineStringLength} from '../geom/flat/length.js';
import {forEach as forEachSegment} from '../geom/flat/segments.js';
@@ -143,7 +143,7 @@ LineString.prototype.getCoordinateAtM = function(m, opt_extrapolate) {
return null;
}
const extrapolate = opt_extrapolate !== undefined ? opt_extrapolate : false;
return _ol_geom_flat_interpolate_.lineStringCoordinateAtM(this.flatCoordinates, 0,
return lineStringCoordinateAtM(this.flatCoordinates, 0,
this.flatCoordinates.length, this.stride, m, extrapolate);
};
@@ -171,7 +171,7 @@ LineString.prototype.getCoordinates = function() {
* @api
*/
LineString.prototype.getCoordinateAt = function(fraction, opt_dest) {
return _ol_geom_flat_interpolate_.lineString(
return interpolatePoint(
this.flatCoordinates, 0, this.flatCoordinates.length, this.stride,
fraction, opt_dest);
};

6
src/ol/geom/MultiLineString.js
View File

@@ -11,7 +11,7 @@ import SimpleGeometry from '../geom/SimpleGeometry.js';
import {assignClosestArrayPoint, arrayMaxSquaredDelta} from '../geom/flat/closest.js';
import {deflateCoordinatesArray} from '../geom/flat/deflate.js';
import {inflateCoordinatesArray} from '../geom/flat/inflate.js';
import _ol_geom_flat_interpolate_ from '../geom/flat/interpolate.js';
import {interpolatePoint, lineStringsCoordinateAtM} from '../geom/flat/interpolate.js';
import _ol_geom_flat_intersectsextent_ from '../geom/flat/intersectsextent.js';
import {douglasPeuckerArray} from '../geom/flat/simplify.js';
@@ -132,7 +132,7 @@ MultiLineString.prototype.getCoordinateAtM = function(m, opt_extrapolate, opt_in
}
const extrapolate = opt_extrapolate !== undefined ? opt_extrapolate : false;
const interpolate = opt_interpolate !== undefined ? opt_interpolate : false;
return _ol_geom_flat_interpolate_.lineStringsCoordinateAtM(this.flatCoordinates, 0,
return lineStringsCoordinateAtM(this.flatCoordinates, 0,
this.ends_, this.stride, m, extrapolate, interpolate);
};
@@ -208,7 +208,7 @@ MultiLineString.prototype.getFlatMidpoints = function() {
const stride = this.stride;
for (let i = 0, ii = ends.length; i < ii; ++i) {
const end = ends[i];
const midpoint = _ol_geom_flat_interpolate_.lineString(
const midpoint = interpolatePoint(
flatCoordinates, offset, end, stride, 0.5);
extend(midpoints, midpoint);
offset = end;

18
src/ol/geom/flat/interpolate.js
View File

@@ -3,7 +3,6 @@
*/
import {binarySearch} from '../../array.js';
import {lerp} from '../../math.js';
const _ol_geom_flat_interpolate_ = {};
/**
@@ -15,7 +14,7 @@ const _ol_geom_flat_interpolate_ = {};
* @param {Array.<number>=} opt_dest Destination.
* @return {Array.<number>} Destination.
*/
_ol_geom_flat_interpolate_.lineString = function(flatCoordinates, offset, end, stride, fraction, opt_dest) {
export function interpolatePoint(flatCoordinates, offset, end, stride, fraction, opt_dest) {
let pointX = NaN;
let pointY = NaN;
const n = (end - offset) / stride;
@@ -62,7 +61,7 @@ _ol_geom_flat_interpolate_.lineString = function(flatCoordinates, offset, end, s
} else {
return [pointX, pointY];
}
};
}
/**
@@ -74,7 +73,7 @@ _ol_geom_flat_interpolate_.lineString = function(flatCoordinates, offset, end, s
* @param {boolean} extrapolate Extrapolate.
* @return {ol.Coordinate} Coordinate.
*/
_ol_geom_flat_interpolate_.lineStringCoordinateAtM = function(flatCoordinates, offset, end, stride, m, extrapolate) {
export function lineStringCoordinateAtM(flatCoordinates, offset, end, stride, m, extrapolate) {
if (end == offset) {
return null;
}
@@ -123,7 +122,7 @@ _ol_geom_flat_interpolate_.lineStringCoordinateAtM = function(flatCoordinates, o
}
coordinate.push(m);
return coordinate;
};
}
/**
@@ -136,10 +135,10 @@ _ol_geom_flat_interpolate_.lineStringCoordinateAtM = function(flatCoordinates, o
* @param {boolean} interpolate Interpolate.
* @return {ol.Coordinate} Coordinate.
*/
_ol_geom_flat_interpolate_.lineStringsCoordinateAtM = function(
export function lineStringsCoordinateAtM(
flatCoordinates, offset, ends, stride, m, extrapolate, interpolate) {
if (interpolate) {
return _ol_geom_flat_interpolate_.lineStringCoordinateAtM(
return lineStringCoordinateAtM(
flatCoordinates, offset, ends[ends.length - 1], stride, m, extrapolate);
}
let coordinate;
@@ -169,11 +168,10 @@ _ol_geom_flat_interpolate_.lineStringsCoordinateAtM = function(
if (m < flatCoordinates[offset + stride - 1]) {
return null;
} else if (m <= flatCoordinates[end - 1]) {
return _ol_geom_flat_interpolate_.lineStringCoordinateAtM(
return lineStringCoordinateAtM(
flatCoordinates, offset, end, stride, m, false);
}
offset = end;
}
return null;
};
export default _ol_geom_flat_interpolate_;
}

6
src/ol/render/Feature.js
View File

@@ -7,7 +7,7 @@ import {createOrUpdateFromCoordinate, createOrUpdateFromFlatCoordinates, getCent
import GeometryType from '../geom/GeometryType.js';
import {linearRingss as linearRingssCenter} from '../geom/flat/center.js';
import {getInteriorPointOfArray, getInteriorPointsOfMultiArray} from '../geom/flat/interiorpoint.js';
import _ol_geom_flat_interpolate_ from '../geom/flat/interpolate.js';
import {interpolatePoint} from '../geom/flat/interpolate.js';
import _ol_geom_flat_transform_ from '../geom/flat/transform.js';
import _ol_transform_ from '../transform.js';
@@ -151,7 +151,7 @@ RenderFeature.prototype.getFlatInteriorPoints = function() {
*/
RenderFeature.prototype.getFlatMidpoint = function() {
if (!this.flatMidpoints_) {
this.flatMidpoints_ = _ol_geom_flat_interpolate_.lineString(
this.flatMidpoints_ = interpolatePoint(
this.flatCoordinates_, 0, this.flatCoordinates_.length, 2, 0.5);
}
return this.flatMidpoints_;
@@ -169,7 +169,7 @@ RenderFeature.prototype.getFlatMidpoints = function() {
const ends = this.ends_;
for (let i = 0, ii = ends.length; i < ii; ++i) {
const end = ends[i];
const midpoint = _ol_geom_flat_interpolate_.lineString(
const midpoint = interpolatePoint(
flatCoordinates, offset, end, 2, 0.5);
extend(this.flatMidpoints_, midpoint);
offset = end;

20
test/spec/ol/geom/flat/interpolate.test.js
View File

@@ -1,4 +1,4 @@
import _ol_geom_flat_interpolate_ from '../../../../../src/ol/geom/flat/interpolate.js';
import {interpolatePoint} from '../../../../../src/ol/geom/flat/interpolate.js';
describe('ol.geom.flat.interpolate', function() {
@@ -8,14 +8,14 @@ describe('ol.geom.flat.interpolate', function() {
it('returns the expected value for single points', function() {
const flatCoordinates = [0, 1];
const point =
_ol_geom_flat_interpolate_.lineString(flatCoordinates, 0, 2, 2, 0.5);
interpolatePoint(flatCoordinates, 0, 2, 2, 0.5);
expect(point).to.eql([0, 1]);
});
it('returns the expected value for simple line segments', function() {
const flatCoordinates = [0, 1, 2, 3];
const point =
_ol_geom_flat_interpolate_.lineString(flatCoordinates, 0, 4, 2, 0.5);
interpolatePoint(flatCoordinates, 0, 4, 2, 0.5);
expect(point).to.eql([1, 2]);
});
@@ -23,14 +23,14 @@ describe('ol.geom.flat.interpolate', function() {
'coordinate',
function() {
const flatCoordinates = [0, 1, 2, 3, 4, 5];
const point = _ol_geom_flat_interpolate_.lineString(
const point = interpolatePoint(
flatCoordinates, 0, 6, 2, 0.5);
expect(point).to.eql([2, 3]);
});
xit('also when vertices are repeated', function() {
const flatCoordinates = [0, 1, 2, 3, 2, 3, 4, 5];
const point = _ol_geom_flat_interpolate_.lineString(
const point = interpolatePoint(
flatCoordinates, 0, 6, 2, 0.5);
expect(point).to.eql([2, 3]);
});
@@ -39,14 +39,14 @@ describe('ol.geom.flat.interpolate', function() {
'two existing coordinates',
function() {
const flatCoordinates = [0, 1, 2, 3, 4, 5, 6, 7];
const point = _ol_geom_flat_interpolate_.lineString(
const point = interpolatePoint(
flatCoordinates, 0, 8, 2, 0.5);
expect(point).to.eql([3, 4]);
});
xit('also when vertices are repeated', function() {
const flatCoordinates = [0, 1, 2, 3, 2, 3, 4, 5, 6, 7];
const point = _ol_geom_flat_interpolate_.lineString(
const point = interpolatePoint(
flatCoordinates, 0, 8, 2, 0.5);
expect(point).to.eql([3, 4]);
});
@@ -54,7 +54,7 @@ describe('ol.geom.flat.interpolate', function() {
it('returns the expected value when the coordinates are not evenly spaced',
function() {
const flatCoordinates = [0, 1, 2, 3, 6, 7];
const point = _ol_geom_flat_interpolate_.lineString(
const point = interpolatePoint(
flatCoordinates, 0, 6, 2, 0.5);
expect(point).to.eql([3, 4]);
});
@@ -62,7 +62,7 @@ describe('ol.geom.flat.interpolate', function() {
xit('also when vertices are repeated',
function() {
const flatCoordinates = [0, 1, 2, 3, 2, 3, 6, 7];
const point = _ol_geom_flat_interpolate_.lineString(
const point = interpolatePoint(
flatCoordinates, 0, 6, 2, 0.5);
expect(point).to.eql([3, 4]);
});
@@ -70,7 +70,7 @@ describe('ol.geom.flat.interpolate', function() {
it('returns the expected value when using opt_dest',
function() {
const flatCoordinates = [0, 1, 2, 3, 6, 7];
const point = _ol_geom_flat_interpolate_.lineString(
const point = interpolatePoint(
flatCoordinates, 0, 6, 2, 0.5, [0, 0]);
expect(point).to.eql([3, 4]);
});