This commit is contained in:
Jason Davies 2012-09-25 22:45:41 +01:00
Родитель 1fe9eb5909
Коммит 262286bc60
3 изменённых файлов: 41 добавлений и 56 удалений

45
d3.v2.js поставляемый
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@ -1912,51 +1912,40 @@
};
return albers;
}
function d3_geo_antemeridianLine(rotate, p) {
function d3_geo_antemeridianLine(rotate, project) {
return function(lineString, context) {
d3_geo_antemeridianClipLine(rotate, lineString, d3_geo_antemeridianContext(p, context));
d3_geo_antemeridianClipLine(rotate, project, lineString, context);
};
}
function d3_geo_antemeridianRing(rotate, p) {
function d3_geo_antemeridianRing(rotate, project) {
return function(ring, context) {
d3_geo_antemeridianClipLine(rotate, ring, d3_geo_antemeridianContext(p, context));
d3_geo_antemeridianClipLine(rotate, project, ring, context);
context.closePath();
};
}
function d3_geo_antemeridianClipLine(rotate, lineString, context) {
function d3_geo_antemeridianClipLine(rotate, project, lineString, context) {
if (!(n = lineString.length)) return;
var point = rotate(lineString[0]);
context.moveTo(λ0 = point[0], φ0 = point[1]);
for (var λ0, φ0, i = 0, j = 0, n; j < n; j++) {
point = rotate(lineString[j]);
var λ1 = point[0], φ1 = point[1], δλ = (Math.abs(λ1 - λ0) + 2 * π) % (2 * π), sλ0 = λ0 > 0;
var λ0, φ0, λ1, φ1, δλ, sλ0, n, location = rotate(lineString[0]), point = project(λ0 = location[0], φ0 = location[1]), intersection;
context.moveTo(point[0], point[1]);
for (var i = 0, j = 0; j < n; j++) {
location = rotate(lineString[j]);
point = project(λ1 = location[0], φ1 = location[1]);
δλ = (Math.abs(λ1 - λ0) + 2 * π) % (2 * π);
sλ0 = λ0 > 0;
if (j > i && sλ0 ^ λ1 > 0 && (δλ >= π || δλ < ε && Math.abs(Math.abs(λ0) - π) < ε)) {
φ0 = d3_geo_antemeridianIntersect(λ0, φ0, λ1, φ1);
context.lineTo(sλ0 ? π : -π, φ0);
context.moveTo(sλ0 ? -π : π, φ0);
context.lineTo((intersection = project(sλ0 ? π : -π, φ0))[0], intersection[1]);
context.moveTo((intersection = project(sλ0 ? -π : π, φ0))[0], intersection[1]);
}
context.lineTo(λ0 = λ1, φ0 = φ1);
context.lineTo(point[0], point[1]);
λ0 = λ1;
φ0 = φ1;
}
}
function d3_geo_antemeridianIntersect(λ0, φ0, λ1, φ1) {
var cosφ0, cosφ1, sinλ0_λ1 = Math.sin(λ0 - λ1);
return Math.abs(sinλ0_λ1) > ε ? Math.atan((Math.sin(φ0) * (cosφ1 = Math.cos(φ1)) * Math.sin(λ1) - Math.sin(φ1) * (cosφ0 = Math.cos(φ0)) * Math.sin(λ0)) / (cosφ0 * cosφ1 * sinλ0_λ1)) : (φ0 + φ1) / 2;
}
function d3_geo_antemeridianContext(p, context) {
return {
moveTo: function(x, y) {
var point = p(x, y);
context.moveTo(point[0], point[1]);
},
lineTo: function(x, y) {
var point = p(x, y);
context.lineTo(point[0], point[1]);
},
closePath: function() {
context.closePath();
}
};
}
function d3_geo_bounds(o, f) {
if (d3_geo_boundsTypes.hasOwnProperty(o.type)) d3_geo_boundsTypes[o.type](o, f);
}

8
d3.v2.min.js поставляемый

Различия файлов скрыты, потому что одна или несколько строк слишком длинны

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@ -1,32 +1,36 @@
function d3_geo_antemeridianLine(rotate, p) {
function d3_geo_antemeridianLine(rotate, project) {
return function(lineString, context) {
d3_geo_antemeridianClipLine(rotate, lineString, d3_geo_antemeridianContext(p, context));
d3_geo_antemeridianClipLine(rotate, project, lineString, context);
};
}
function d3_geo_antemeridianRing(rotate, p) {
function d3_geo_antemeridianRing(rotate, project) {
return function(ring, context) {
d3_geo_antemeridianClipLine(rotate, ring, d3_geo_antemeridianContext(p, context));
d3_geo_antemeridianClipLine(rotate, project, ring, context);
context.closePath();
};
}
function d3_geo_antemeridianClipLine(rotate, lineString, context) {
function d3_geo_antemeridianClipLine(rotate, project, lineString, context) {
if (!(n = lineString.length)) return;
var point = rotate(lineString[0]);
context.moveTo(λ0 = point[0], φ0 = point[1]);
for (var λ0, φ0, i = 0, j = 0, n; j < n; j++) {
point = rotate(lineString[j]);
var λ1 = point[0],
φ1 = point[1],
δλ = (Math.abs(λ1 - λ0) + 2 * π) % (2 * π),
sλ0 = λ0 > 0;
var λ0, φ0, λ1, φ1, δλ, sλ0, n,
location = rotate(lineString[0]),
point = project(λ0 = location[0], φ0 = location[1]),
intersection;
context.moveTo(point[0], point[1]);
for (var i = 0, j = 0; j < n; j++) {
location = rotate(lineString[j]);
point = project(λ1 = location[0], φ1 = location[1]);
δλ = (Math.abs(λ1 - λ0) + 2 * π) % (2 * π);
sλ0 = λ0 > 0;
if (j > i && sλ0 ^ (λ1 > 0) && (δλ >= π || δλ < ε && Math.abs(Math.abs(λ0) - π) < ε)) {
φ0 = d3_geo_antemeridianIntersect(λ0, φ0, λ1, φ1);
context.lineTo(sλ0 ? π : -π, φ0);
context.moveTo(sλ0 ? -π : π, φ0);
context.lineTo((intersection = project(sλ0 ? π : -π, φ0))[0], intersection[1]);
context.moveTo((intersection = project(sλ0 ? -π : π, φ0))[0], intersection[1]);
}
context.lineTo(λ0 = λ1, φ0 = φ1);
context.lineTo(point[0], point[1]);
λ0 = λ1;
φ0 = φ1;
}
}
@ -39,11 +43,3 @@ function d3_geo_antemeridianIntersect(λ0, φ0, λ1, φ1) {
/ (cosφ0 * cosφ1 * sinλ0_λ1))
: (φ0 + φ1) / 2;
}
function d3_geo_antemeridianContext(p, context) {
return {
moveTo: function(x, y) { var point = p(x, y); context.moveTo(point[0], point[1]); },
lineTo: function(x, y) { var point = p(x, y); context.lineTo(point[0], point[1]); },
closePath: function() { context.closePath(); }
};
}