51 lines
1.4 KiB
Java
51 lines
1.4 KiB
Java
module.exports = {
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_initDefaultCfg: function _initDefaultCfg() {
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this.xField = null; // 调整对应的 x 方向对应的字段名称
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this.yField = null; // 调整对应的 y 方向对应的字段名称
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this.height = null; // 仅有一个维度调整时，总的高度
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this.size = 10; // 单个点的大小
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this.reverseOrder = false; // 是否反序进行层叠
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this.adjustNames = ['y']; // Only support stack y
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},
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processOneDimStack: function processOneDimStack(dataArray) {
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var self = this;
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var xField = self.xField;
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var yField = self.yField || 'y';
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var height = self.height;
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var stackY = {}; // 如果层叠的顺序翻转
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if (self.reverseOrder) {
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dataArray = dataArray.slice(0).reverse();
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}
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for (var i = 0, len = dataArray.length; i < len; i++) {
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var data = dataArray[i]; // cates
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for (var j = 0, dataLen = data.length; j < dataLen; j++) {
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var item = data[j];
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var size = item.size || self.size;
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var stackHeight = size * 2 / height;
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var x = item[xField];
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if (!stackY[x]) {
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stackY[x] = stackHeight / 2;
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}
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item[yField] = stackY[x];
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stackY[x] += stackHeight;
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}
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}
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},
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processAdjust: function processAdjust(dataArray) {
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if (this.yField) {
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this.processStack(dataArray);
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} else {
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this.processOneDimStack(dataArray);
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}
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}
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}; |