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Only create custom style for text we actually render

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This commit is contained in:
Andreas Hocevar
2017-08-04 22:54:14 +02:00
parent 617151c8ff
commit 35f22fb52c
2 changed files with 54 additions and 63 deletions
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28
examples/street-labels.js
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@@ -28,20 +28,18 @@ var style = new ol.style.Style({
renderer: function(coords, context) {
var feature = context.feature;
var text = feature.get('name');
if (text) {
// Only create label when geometry has a long and straight segment
var path = labelSegment(coords, Math.PI / 8, measureText(text));
if (path) {
extent = ol.extent.createEmpty();
letters = [];
textPath(text, path, measureText, collectDrawData);
ol.extent.buffer(extent, 5 * pixelRatio, extent);
var bounds = {
bottomLeft: ol.extent.getBottomLeft(extent),
topRight: ol.extent.getTopRight(extent)
};
labelEngine.ingestLabel(bounds, feature.getId(), 1, letters, text, false);
}
// Only create label when geometry has a long and straight segment
var path = labelSegment(coords, Math.PI / 8, measureText(text));
if (path) {
extent = ol.extent.createEmpty();
letters = [];
textPath(text, path, measureText, collectDrawData);
ol.extent.buffer(extent, 5 * pixelRatio, extent);
var bounds = {
bottomLeft: ol.extent.getBottomLeft(extent),
topRight: ol.extent.getTopRight(extent)
};
labelEngine.ingestLabel(bounds, feature.getId(), 1, letters, text, false);
}
}
});
@@ -70,7 +68,7 @@ fetch('https://overpass-api.de/api/interpreter', {
var vectorLayer = new ol.layer.Vector({
source: source,
style: function(feature) {
if (feature.getGeometry().getType() == 'LineString') {
if (feature.getGeometry().getType() == 'LineString' && feature.get('text')) {
return style;
}
}