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drawingtools.html
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<!DOCTYPE html>
<html>
<title>Drawing tools</title>
<link rel="stylesheet" type="text/css" href="examples.css"/>
<script type="text/javascript">window.gcForceFlashViewer = false;</script>
<script type="text/javascript" src="https://api.giscloud.com/1/api.js"></script>
<script type="text/javascript" src="examples.js"></script>
<script type="text/javascript">
var viewer, tool, $ = giscloud.exposeJQuery();
giscloud.ready(function () {
// create a viewer
viewer = new giscloud.Viewer("mapViewer", mapId, { slider: true });
// create the toolbar and add the tools
new giscloud.ui.Toolbar({
viewer: viewer,
container: "toolbar"
}).add(
// point tool
new giscloud.ui.Toolbar.Tool("pointTool", {
instant: true,
styles: {
caption: "Point",
showCaption: true,
cssClass: "mytool",
active: "mytool-active",
hover: "mytool-hover"
},
actions: {
activation: function (viewer) {
// start drawing
viewer.graphic.draw("point",
function (feat) {
// output wkt
outputOgcWkt(feat.geometry().toOGC());
}
);
}
}
}
),
// line tool
new giscloud.ui.Toolbar.Tool("lineTool", {
instant: true,
styles: {
caption: "Line",
showCaption: true,
cssClass: "mytool",
active: "mytool-active",
hover: "mytool-hover"
},
actions: {
activation: function (viewer) {
// start drawing
viewer.graphic.draw("line",
function (feat) {
// output wkt
outputOgcWkt(feat.geometry().toOGC());
}
);
}
}
}
),
// polygon tool
new giscloud.ui.Toolbar.Tool("polygonTool", {
instant: true,
styles: {
caption: "Polygon",
showCaption: true,
cssClass: "mytool",
active: "mytool-active",
hover: "mytool-hover"
},
actions: {
activation: function (viewer) {
// start drawing
viewer.graphic.draw("polygon",
function (feat) {
// output wkt
outputOgcWkt(feat.geometry().toOGC());
}
);
}
}
}
),
// clear
new giscloud.ui.Toolbar.Tool("clearTool", {
instant: true,
styles: {
caption: "Clear",
showCaption: true,
cssClass: "mytool",
active: "mytool-active",
hover: "mytool-hover"
},
actions: {
activation: function (viewer) {
// clear graphic layer
viewer.graphic.clear();
}
}
}
)
);
});
function outputOgcWkt(wkt) {
$("#geom").html(wkt);
}
</script>
<style type="text/css">
#geom {
border: thin solid #ccc;
padding: 0.3em;
width: 100%;
margin-top: 0.5em;
}
.mytool {
margin: 0.1em 0.2em;
padding: 0em 0.8em;
background-color: #ccc;
color: #444;
cursor: pointer;
}
.mytool-active {
background-color: #999;
color: #eee;
}
.mytool-hover {
text-decoration: underline;
}
</style>
<body>
<h1>Drawing tools</h1>
<p>
With the aid of the viewer's graphic object, you can have users
drawing graphic features directly on the viewer.
</p>
<p>
In this example four custom tools are created and added to the viewer's toolbar.
The tools are used to draw points, lines, polygons and to clear the graphic layer.
</p>
<p>
Additionally, after the feature has been drawn, its
<a href="http://www.opengeospatial.org/standards/sfa" target="_blank">OGC Simple Feature WKT</a>
(well-known text) is displayed in the box below the map.
</p>
<div id ="toolbar"></div>
<div id="mapViewer"></div>
<div id="geom"></div>
<p>
The code:
</p>
<pre>// point tool
new giscloud.ui.Toolbar.Tool("pointTool", {
instant: true,
styles: {
caption: "Point",
showCaption: true,
cssClass: "mytool",
active: "mytool-active",
hover: "mytool-hover"
},
actions: {
activation: function (viewer) {
// start drawing
viewer.graphic.draw("point",
function (feat) {
// output wkt
outputOgcWkt(feat.geometry().toOGC());
}
);
}
}
}
)
// line tool
...
viewer.graphic.draw("line", ...
// polygon tool
...
viewer.graphic.draw("polygon", ...
// clear tool
...
viewer.graphic.clear();
...</pre>
</body>
</html>