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Consider polygon labels only when they fit the intersection length

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This commit is contained in:
Andreas Hocevar
2017-09-27 18:06:30 +02:00
parent 7a3e11b9e4
commit 325fac6886
4 changed files with 80 additions and 11 deletions
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48
test/spec/ol/render/canvas/textreplay.test.js Normal file
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goog.require('ol.Feature');
goog.require('ol.geom.MultiPolygon');
goog.require('ol.geom.Polygon');
goog.require('ol.render.canvas.TextReplay');
goog.require('ol.style.Text');
describe('ol.render.canvas.TextReplay', function() {
it('renders polygon labels only when they fit', function() {
var replay = new ol.render.canvas.TextReplay(1, [-180, -90, 180, 90], 0.02, 1, true);
var geometry = new ol.geom.Polygon([[[0, 0], [0, 1], [1, 1], [1, 0], [0, 0]]]);
var feature = new ol.Feature(geometry);
replay.setTextStyle(new ol.style.Text({
text: 'This is a long text'
}));
replay.drawText(geometry, feature);
expect(replay.instructions.length).to.be(0);
replay.setTextStyle(new ol.style.Text({
text: 'short'
}));
replay.drawText(geometry, feature);
expect(replay.instructions.length).to.be(3);
});
it('renders multipolygon labels only when they fit', function() {
var replay = new ol.render.canvas.TextReplay(1, [-180, -90, 180, 90], 0.02, 1, true);
var geometry = new ol.geom.MultiPolygon([
[[[0, 0], [0, 1], [1, 1], [1, 0], [0, 0]]],
[[[1, 1], [1, 2], [2, 2], [2, 1], [1, 1]]]
]);
var feature = new ol.Feature(geometry);
replay.setTextStyle(new ol.style.Text({
text: 'This is a long text'
}));
replay.drawText(geometry, feature);
expect(replay.instructions.length).to.be(0);
replay.setTextStyle(new ol.style.Text({
text: 'short'
}));
replay.drawText(geometry, feature);
expect(replay.instructions.length).to.be(3);
});
});