51 lines
911 B
JavaScript
51 lines
911 B
JavaScript
var count = 10000;
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var features = new Array(count);
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var startPoint = [0, 0];
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var endPoint;
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var delta, deltaX, deltaY;
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var signX = 1;
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var signY = -1;
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// Create a square spiral.
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var i;
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for (i = 0; i < count; ++i) {
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delta = (i + 1) * 2500;
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if (i % 2 === 0) {
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signY *= -1;
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} else {
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signX *= -1;
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}
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deltaX = delta * signX;
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deltaY = delta * signY;
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endPoint = [startPoint[0] + deltaX, startPoint[1] + deltaY];
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features[i] = new ol.Feature({
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'geometry': new ol.geom.LineString([startPoint, endPoint])
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});
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startPoint = endPoint;
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}
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var vector = new ol.layer.Vector({
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source: new ol.source.Vector({
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features: features
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}),
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style: new ol.style.Style({
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stroke: new ol.style.Stroke({
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color: '#666666',
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width: 1
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})
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})
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});
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var view = new ol.View2D({
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center: [0, 0],
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zoom: 0
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});
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var map = new ol.Map({
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layers: [vector],
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target: 'map',
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view: view
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});
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