ashatora/openlayers
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Named exports from ol/reproj

Browse Source
This commit is contained in:
Tim Schaub
2018-02-09 09:38:53 -07:00
parent 9ed3881f34
commit 9c1db1f904
6 changed files with 25 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
src/ol/reproj.js
View File

@@ -5,7 +5,6 @@ import {createCanvasContext2D} from './dom.js';
import {containsCoordinate, createEmpty, extend, getHeight, getTopLeft, getWidth} from './extent.js';
import {solveLinearSystem} from './math.js';
import {getPointResolution, transform} from './proj.js';
const _ol_reproj_ = {};
/**
@@ -20,7 +19,7 @@ const _ol_reproj_ = {};
* @param {number} targetResolution Target resolution.
* @return {number} The best resolution to use. Can be +-Infinity, NaN or 0.
*/
_ol_reproj_.calculateSourceResolution = function(sourceProj, targetProj,
export function calculateSourceResolution(sourceProj, targetProj,
targetCenter, targetResolution) {
const sourceCenter = transform(targetCenter, targetProj, sourceProj);
@@ -51,7 +50,7 @@ _ol_reproj_.calculateSourceResolution = function(sourceProj, targetProj,
}
return sourceResolution;
};
}
/**
@@ -63,14 +62,13 @@ _ol_reproj_.calculateSourceResolution = function(sourceProj, targetProj,
* @param {number} x X coordinate of the point (in pixels).
* @param {number} y Y coordinate of the point (in pixels).
* @return {ol.Coordinate} New point 1 px farther from the centroid.
* @private
*/
_ol_reproj_.enlargeClipPoint_ = function(centroidX, centroidY, x, y) {
function enlargeClipPoint(centroidX, centroidY, x, y) {
const dX = x - centroidX;
const dY = y - centroidY;
const distance = Math.sqrt(dX * dX + dY * dY);
return [Math.round(x + dX / distance), Math.round(y + dY / distance)];
};
}
/**
@@ -91,7 +89,7 @@ _ol_reproj_.enlargeClipPoint_ = function(centroidX, centroidY, x, y) {
* @param {boolean=} opt_renderEdges Render reprojection edges.
* @return {HTMLCanvasElement} Canvas with reprojected data.
*/
_ol_reproj_.render = function(width, height, pixelRatio,
export function render(width, height, pixelRatio,
sourceResolution, sourceExtent, targetResolution, targetExtent,
triangulation, sources, gutter, opt_renderEdges) {
@@ -193,9 +191,9 @@ _ol_reproj_.render = function(width, height, pixelRatio,
context.beginPath();
const centroidX = (u0 + u1 + u2) / 3;
const centroidY = (v0 + v1 + v2) / 3;
const p0 = _ol_reproj_.enlargeClipPoint_(centroidX, centroidY, u0, v0);
const p1 = _ol_reproj_.enlargeClipPoint_(centroidX, centroidY, u1, v1);
const p2 = _ol_reproj_.enlargeClipPoint_(centroidX, centroidY, u2, v2);
const p0 = enlargeClipPoint(centroidX, centroidY, u0, v0);
const p1 = enlargeClipPoint(centroidX, centroidY, u1, v1);
const p2 = enlargeClipPoint(centroidX, centroidY, u2, v2);
context.moveTo(p1[0], p1[1]);
context.lineTo(p0[0], p0[1]);
@@ -241,5 +239,4 @@ _ol_reproj_.render = function(width, height, pixelRatio,
context.restore();
}
return context.canvas;
};
export default _ol_reproj_;
}