53 lines
1.6 KiB
Plaintext
53 lines
1.6 KiB
Plaintext
define(function (require) {
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var vec2 = require('zrender/core/vector');
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return function (seriesModel) {
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var coordSys = seriesModel.coordinateSystem;
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if (coordSys && coordSys.type !== 'view') {
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return;
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}
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var rect = coordSys.getBoundingRect();
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var nodeData = seriesModel.getData();
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var graph = nodeData.graph;
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var angle = 0;
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var sum = nodeData.getSum('value');
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var unitAngle = Math.PI * 2 / (sum || nodeData.count());
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var cx = rect.width / 2 + rect.x;
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var cy = rect.height / 2 + rect.y;
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var r = Math.min(rect.width, rect.height) / 2;
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graph.eachNode(function (node) {
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var value = node.getValue('value');
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angle += unitAngle * (sum ? value : 2) / 2;
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node.setLayout([
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r * Math.cos(angle) + cx,
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r * Math.sin(angle) + cy
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]);
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angle += unitAngle * (sum ? value : 2) / 2;
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});
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graph.eachEdge(function (edge) {
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var curveness = edge.getModel().get('lineStyle.normal.curveness') || 0;
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var p1 = vec2.clone(edge.node1.getLayout());
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var p2 = vec2.clone(edge.node2.getLayout());
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var cp1;
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var x12 = (p1[0] + p2[0]) / 2;
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var y12 = (p1[1] + p2[1]) / 2;
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if (curveness > 0) {
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curveness *= 3;
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cp1 = [
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cx * curveness + x12 * (1 - curveness),
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cy * curveness + y12 * (1 - curveness)
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];
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}
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edge.setLayout([p1, p2, cp1]);
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});
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};
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}); |