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Putting the script tag at the end of the body (for demonstration purposes).

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git-svn-id: http://svn.openlayers.org/trunk/openlayers@10725 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
Tim Schaub
2010-09-10 13:14:06 +00:00
parent d879ca8d00
commit 3aeab46132
2 changed files with 50 additions and 55 deletions
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4
examples/filter-strategy.html
View File

@@ -7,7 +7,6 @@
<link rel="stylesheet" href="style.css" type="text/css"> <link rel="stylesheet" href="style.css" type="text/css">
<script src="../lib/OpenLayers.js"></script> <script src="../lib/OpenLayers.js"></script>
<script>OpenLayers.ImgPath = "../img/";</script> <script>OpenLayers.ImgPath = "../img/";</script>
<script src="filter-strategy.js"></script>
<style> <style>
.olControlAttribution { .olControlAttribution {
font-size: 9px; font-size: 9px;
@@ -15,7 +14,7 @@
} }
</style> </style>
</head> </head>
<body onload="init()"> <body>
<h1 id="title">Filter Strategy</h1> <h1 id="title">Filter Strategy</h1>
<p id="shortdesc"> <p id="shortdesc">
Demonstrates the filter strategy for limiting features passed to the layer. Demonstrates the filter strategy for limiting features passed to the layer.
@@ -44,5 +43,6 @@
source to see how this is done source to see how this is done
</p> </p>
</div> </div>
<script src="filter-strategy.js"></script>
</body> </body>
</html> </html>

67
examples/filter-strategy.js
View File

@@ -1,11 +1,40 @@
var map, filter, filterStrategy; var map, filter, filterStrategy;
var animationTimer;
var currentDate;
var startDate = new Date(1272736800000); // lower bound of when values var startDate = new Date(1272736800000); // lower bound of when values
var endDate = new Date(1272737100000); // upper value of when values var endDate = new Date(1272737100000); // upper value of when values
var step = 8; // sencods to advance each interval var step = 8; // sencods to advance each interval
var interval = 0.125; // seconds between each step in the animation var interval = 0.125; // seconds between each step in the animation
function init() { function startAnimation() {
if (animationTimer) {
stopAnimation(true);
}
if (!currentDate) {
currentDate = startDate;
}
var spanEl = document.getElementById("span");
var next = function() {
var span = parseInt(spanEl.value, 10);
if (currentDate < endDate) {
filter.lowerBoundary = currentDate;
filter.upperBoundary = new Date(currentDate.getTime() + (span * 1000));
filterStrategy.setFilter(filter);
currentDate = new Date(currentDate.getTime() + (step * 1000))
} else {
stopAnimation(true);
}
}
animationTimer = window.setInterval(next, interval * 1000);
}
function stopAnimation(reset) {
window.clearInterval(animationTimer);
animationTimer = null;
if (reset === true) {
currentDate = null;
}
}
// add behavior to elements // add behavior to elements
document.getElementById("start").onclick = startAnimation; document.getElementById("start").onclick = startAnimation;
@@ -53,37 +82,3 @@ function init() {
map.addLayers([osm, flights]); map.addLayers([osm, flights]);
map.setCenter(new OpenLayers.LonLat(-93.2735, 44.8349).transform(geographic, mercator), 8); map.setCenter(new OpenLayers.LonLat(-93.2735, 44.8349).transform(geographic, mercator), 8);
};
var animationTimer;
var currentDate;
function startAnimation() {
if (animationTimer) {
stopAnimation(true);
}
if (!currentDate) {
currentDate = startDate;
}
var spanEl = document.getElementById("span");
var next = function() {
var span = parseInt(spanEl.value, 10);
if (currentDate < endDate) {
filter.lowerBoundary = currentDate;
filter.upperBoundary = new Date(currentDate.getTime() + (span * 1000));
filterStrategy.setFilter(filter);
currentDate = new Date(currentDate.getTime() + (step * 1000))
} else {
stopAnimation(true);
}
}
animationTimer = window.setInterval(next, interval * 1000);
}
function stopAnimation(reset) {
window.clearInterval(animationTimer);
animationTimer = null;
if (reset === true) {
currentDate = null;
}
}