andy/planetary.js
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Brandon Tilley 2013-12-22 14:02:45 -08:00
parent 8ef8beec04
commit 7634763077
1 changed files with 4 additions and 54 deletions
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58
examples/quake/quake.js
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@ -13,8 +13,10 @@
borders: { stroke: '#001320' } borders: { stroke: '#001320' }
})); }));
planet.loadPlugin(planetaryjs.plugins.pings({})); planet.loadPlugin(planetaryjs.plugins.pings({}));
planet.loadPlugin(zoom()); planet.loadPlugin(planetaryjs.plugins.zoom({
planet.loadPlugin(drag({ scaleExtent: [50, 5000]
}));
planet.loadPlugin(planetaryjs.plugins.drag({
onDragStart: function() { onDragStart: function() {
planet.plugins.autorotate.pause(); planet.plugins.autorotate.pause();
}, },
@ -211,56 +213,4 @@
}); });
}; };
}; };
// Plugin to allow zooming with the mouse wheel
function zoom(options) {
return function(planet) {
planet.onInit(function() {
var zoom = d3.behavior.zoom()
.scale(planet.projection.scale())
.scaleExtent([50, 5000])
.on('zoom', function() {
planet.projection.scale(d3.event.scale);
});
d3.select(planet.canvas).call(zoom);
});
};
};
// Plugin to allow rotating the globe by dragging with the mouse
function drag(options) {
var options = options || {};
var noop = function() {};
var onDragStart = options.onDragStart || noop;
var onDragEnd = options.onDragEnd || noop;
var onDrag = options.onDrag || noop;
return function(planet) {
planet.onInit(function() {
var drag = d3.behavior.drag()
.on('dragstart', onDragStart)
.on('dragend', onDragEnd)
.on('drag', function() {
onDrag();
var dx = d3.event.dx;
var dy = d3.event.dy;
var rotation = planet.projection.rotate();
var radius = planet.projection.scale();
// Dragging from the center of the planet to the edge
// of the planet should rotate it 90 degrees
var scale = d3.scale.linear()
.domain([-1 * radius, radius])
.range([-90, 90]);
var degX = scale(dx);
var degY = scale(dy);
rotation[0] += degX;
rotation[1] -= degY;
if (rotation[1] > 90) rotation[1] = 90;
if (rotation[1] < -90) rotation[1] = -90;
if (rotation[0] >= 180) rotation[0] -= 360;
planet.projection.rotate(rotation);
});
d3.select(planet.canvas).call(drag);
});
};
};
})(); })();