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Render only new features when a data tile is loaded

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This commit is contained in:
John Firebaugh
2013-05-20 10:08:48 -07:00
parent d2e775ac65
commit 1db99586c4
7 changed files with 100 additions and 39 deletions
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test/spec/core/history.js
+4 -3
View File
@@ -23,10 +23,11 @@ describe("iD.History", function () {
expect(history.graph().entity('n')).to.equal(n);
});
it("emits a change event", function () {
it("emits a change event with the specified extent", function () {
var extent = {};
history.on('change', spy);
history.merge({});
expect(spy).to.have.been.called;
history.merge({}, extent);
expect(spy).to.have.been.calledWith(undefined, extent);
});
});
test/spec/geo/extent.js
+43
View File
@@ -109,4 +109,47 @@ describe("iD.geo.Extent", function () {
expect(iD.geo.Extent([[6, 6], [7, 7]]).intersects([[0, 0], [5, 5]])).to.be.false;
});
});
describe("#intersection", function () {
it("returns an empty extent if self does not intersect with other", function () {
var a = iD.geo.Extent([0, 0], [5, 5]),
b = iD.geo.Extent([6, 6], [7, 7]);
expect(a.intersection(b)).to.eql(iD.geo.Extent());
});
it("returns the intersection of self with other (1)", function () {
var a = iD.geo.Extent([0, 0], [5, 5]),
b = iD.geo.Extent([3, 4], [7, 7]);
expect(a.intersection(b)).to.eql(iD.geo.Extent([3, 4], [5, 5]));
expect(b.intersection(a)).to.eql(iD.geo.Extent([3, 4], [5, 5]));
});
it("returns the intersection of self with other (2)", function () {
var a = iD.geo.Extent([0, 0], [5, 5]),
b = iD.geo.Extent([3, -4], [7, 2]);
expect(a.intersection(b)).to.eql(iD.geo.Extent([3, 0], [5, 2]));
expect(b.intersection(a)).to.eql(iD.geo.Extent([3, 0], [5, 2]));
});
it("returns the intersection of self with other (3)", function () {
var a = iD.geo.Extent([0, 0], [5, 5]),
b = iD.geo.Extent([3, 3], [4, 7]);
expect(a.intersection(b)).to.eql(iD.geo.Extent([3, 3], [4, 5]));
expect(b.intersection(a)).to.eql(iD.geo.Extent([3, 3], [4, 5]));
});
it("returns the intersection of self with other (4)", function () {
var a = iD.geo.Extent([0, 0], [5, 5]),
b = iD.geo.Extent([3, -2], [4, 2]);
expect(a.intersection(b)).to.eql(iD.geo.Extent([3, 0], [4, 2]));
expect(b.intersection(a)).to.eql(iD.geo.Extent([3, 0], [4, 2]));
});
it("returns the intersection of self with other (5)", function () {
var a = iD.geo.Extent([0, 0], [5, 5]),
b = iD.geo.Extent([1, 1], [2, 2]);
expect(a.intersection(b)).to.eql(iD.geo.Extent([1, 1], [2, 2]));
expect(b.intersection(a)).to.eql(iD.geo.Extent([1, 1], [2, 2]));
});
});
});