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- ;(function(undefined) {
- 'use strict';
- if (typeof sigma === 'undefined')
- throw 'sigma is not declared';
- // Initialize packages:
- sigma.utils.pkg('sigma.canvas.labels');
- /**
- * This label renderer will just display the label on the right of the node.
- *
- * @param {object} node The node object.
- * @param {CanvasRenderingContext2D} context The canvas context.
- * @param {configurable} settings The settings function.
- */
- sigma.canvas.labels.def = function(node, context, settings) {
- var fontSize,
- prefix = settings('prefix') || '',
- size = node[prefix + 'size'];
- if (size < settings('labelThreshold'))
- return;
- if (!node.label || typeof node.label !== 'string')
- return;
- fontSize = (settings('labelSize') === 'fixed') ?
- settings('defaultLabelSize') :
- settings('labelSizeRatio') * size;
- context.font = (settings('fontStyle') ? settings('fontStyle') + ' ' : '') +
- fontSize + 'px ' + settings('font');
- context.fillStyle = (settings('labelColor') === 'node') ?
- (node.color || settings('defaultNodeColor')) :
- settings('defaultLabelColor');
- context.fillText(
- node.label,
- Math.round(node[prefix + 'x'] + size + 3),
- Math.round(node[prefix + 'y'] + fontSize / 3)
- );
- };
- }).call(this);
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