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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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55
src/ol/reproj.js
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@@ -1,9 +1,11 @@
goog.provide('ol.reproj');
goog.require('ol.dom');
goog.require('ol.extent');
goog.require('ol.math');
goog.require('ol.proj');
/**
* @module ol/reproj
*/
import _ol_dom_ from './dom.js';
import _ol_extent_ from './extent.js';
import _ol_math_ from './math.js';
import _ol_proj_ from './proj.js';
var _ol_reproj_ = {};
/**
@@ -18,14 +20,14 @@ goog.require('ol.proj');
* @param {number} targetResolution Target resolution.
* @return {number} The best resolution to use. Can be +-Infinity, NaN or 0.
*/
ol.reproj.calculateSourceResolution = function(sourceProj, targetProj,
_ol_reproj_.calculateSourceResolution = function(sourceProj, targetProj,
targetCenter, targetResolution) {
var sourceCenter = ol.proj.transform(targetCenter, targetProj, sourceProj);
var sourceCenter = _ol_proj_.transform(targetCenter, targetProj, sourceProj);
// calculate the ideal resolution of the source data
var sourceResolution =
ol.proj.getPointResolution(targetProj, targetResolution, targetCenter);
_ol_proj_.getPointResolution(targetProj, targetResolution, targetCenter);
var targetMetersPerUnit = targetProj.getMetersPerUnit();
if (targetMetersPerUnit !== undefined) {
@@ -41,9 +43,9 @@ ol.reproj.calculateSourceResolution = function(sourceProj, targetProj,
// in order to achieve optimal results.
var sourceExtent = sourceProj.getExtent();
if (!sourceExtent || ol.extent.containsCoordinate(sourceExtent, sourceCenter)) {
if (!sourceExtent || _ol_extent_.containsCoordinate(sourceExtent, sourceCenter)) {
var compensationFactor =
ol.proj.getPointResolution(sourceProj, sourceResolution, sourceCenter) /
_ol_proj_.getPointResolution(sourceProj, sourceResolution, sourceCenter) /
sourceResolution;
if (isFinite(compensationFactor) && compensationFactor > 0) {
sourceResolution /= compensationFactor;
@@ -65,7 +67,7 @@ ol.reproj.calculateSourceResolution = function(sourceProj, targetProj,
* @return {ol.Coordinate} New point 1 px farther from the centroid.
* @private
*/
ol.reproj.enlargeClipPoint_ = function(centroidX, centroidY, x, y) {
_ol_reproj_.enlargeClipPoint_ = function(centroidX, centroidY, x, y) {
var dX = x - centroidX, dY = y - centroidY;
var distance = Math.sqrt(dX * dX + dY * dY);
return [Math.round(x + dX / distance), Math.round(y + dY / distance)];
@@ -90,11 +92,11 @@ 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,
_ol_reproj_.render = function(width, height, pixelRatio,
sourceResolution, sourceExtent, targetResolution, targetExtent,
triangulation, sources, gutter, opt_renderEdges) {
var context = ol.dom.createCanvasContext2D(Math.round(pixelRatio * width),
var context = _ol_dom_.createCanvasContext2D(Math.round(pixelRatio * width),
Math.round(pixelRatio * height));
if (sources.length === 0) {
@@ -103,14 +105,14 @@ ol.reproj.render = function(width, height, pixelRatio,
context.scale(pixelRatio, pixelRatio);
var sourceDataExtent = ol.extent.createEmpty();
var sourceDataExtent = _ol_extent_.createEmpty();
sources.forEach(function(src, i, arr) {
ol.extent.extend(sourceDataExtent, src.extent);
_ol_extent_.extend(sourceDataExtent, src.extent);
});
var canvasWidthInUnits = ol.extent.getWidth(sourceDataExtent);
var canvasHeightInUnits = ol.extent.getHeight(sourceDataExtent);
var stitchContext = ol.dom.createCanvasContext2D(
var canvasWidthInUnits = _ol_extent_.getWidth(sourceDataExtent);
var canvasHeightInUnits = _ol_extent_.getHeight(sourceDataExtent);
var stitchContext = _ol_dom_.createCanvasContext2D(
Math.round(pixelRatio * canvasWidthInUnits / sourceResolution),
Math.round(pixelRatio * canvasHeightInUnits / sourceResolution));
@@ -119,8 +121,8 @@ ol.reproj.render = function(width, height, pixelRatio,
sources.forEach(function(src, i, arr) {
var xPos = src.extent[0] - sourceDataExtent[0];
var yPos = -(src.extent[3] - sourceDataExtent[3]);
var srcWidth = ol.extent.getWidth(src.extent);
var srcHeight = ol.extent.getHeight(src.extent);
var srcWidth = _ol_extent_.getWidth(src.extent);
var srcHeight = _ol_extent_.getHeight(src.extent);
stitchContext.drawImage(
src.image,
@@ -130,7 +132,7 @@ ol.reproj.render = function(width, height, pixelRatio,
srcWidth * stitchScale, srcHeight * stitchScale);
});
var targetTopLeft = ol.extent.getTopLeft(targetExtent);
var targetTopLeft = _ol_extent_.getTopLeft(targetExtent);
triangulation.getTriangles().forEach(function(triangle, i, arr) {
/* Calculate affine transform (src -> dst)
@@ -181,7 +183,7 @@ ol.reproj.render = function(width, height, pixelRatio,
[0, 0, x1, y1, v1 - v0],
[0, 0, x2, y2, v2 - v0]
];
var affineCoefs = ol.math.solveLinearSystem(augmentedMatrix);
var affineCoefs = _ol_math_.solveLinearSystem(augmentedMatrix);
if (!affineCoefs) {
return;
}
@@ -189,9 +191,9 @@ ol.reproj.render = function(width, height, pixelRatio,
context.save();
context.beginPath();
var centroidX = (u0 + u1 + u2) / 3, centroidY = (v0 + v1 + v2) / 3;
var p0 = ol.reproj.enlargeClipPoint_(centroidX, centroidY, u0, v0);
var p1 = ol.reproj.enlargeClipPoint_(centroidX, centroidY, u1, v1);
var p2 = ol.reproj.enlargeClipPoint_(centroidX, centroidY, u2, v2);
var p0 = _ol_reproj_.enlargeClipPoint_(centroidX, centroidY, u0, v0);
var p1 = _ol_reproj_.enlargeClipPoint_(centroidX, centroidY, u1, v1);
var p2 = _ol_reproj_.enlargeClipPoint_(centroidX, centroidY, u2, v2);
context.moveTo(p1[0], p1[1]);
context.lineTo(p0[0], p0[1]);
@@ -238,3 +240,4 @@ ol.reproj.render = function(width, height, pixelRatio,
}
return context.canvas;
};
export default _ol_reproj_;