73 lines
2.2 KiB
JavaScript
73 lines
2.2 KiB
JavaScript
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import * as echarts from 'echarts/lib/echarts';
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import glmatrix from 'claygl/src/dep/glmatrix';
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var vec3 = glmatrix.vec3;
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var isDimensionStacked = echarts.helper.dataStack.isDimensionStacked;
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function ifCrossZero(extent) {
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var min = extent[0];
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var max = extent[1];
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return !(min > 0 && max > 0 || min < 0 && max < 0);
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}
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;
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function cartesian3DLayout(seriesModel, coordSys) {
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var data = seriesModel.getData(); // var barOnPlane = seriesModel.get('onGridPlane');
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var barSize = seriesModel.get('barSize');
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if (barSize == null) {
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var size = coordSys.size;
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var barWidth;
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var barDepth;
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var xAxis = coordSys.getAxis('x');
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var yAxis = coordSys.getAxis('y');
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if (xAxis.type === 'category') {
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barWidth = xAxis.getBandWidth() * 0.7;
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} else {
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// PENDING
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barWidth = Math.round(size[0] / Math.sqrt(data.count())) * 0.6;
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}
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if (yAxis.type === 'category') {
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barDepth = yAxis.getBandWidth() * 0.7;
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} else {
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barDepth = Math.round(size[1] / Math.sqrt(data.count())) * 0.6;
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}
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barSize = [barWidth, barDepth];
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} else if (!echarts.util.isArray(barSize)) {
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barSize = [barSize, barSize];
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}
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var zAxisExtent = coordSys.getAxis('z').scale.getExtent();
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var ifZAxisCrossZero = ifCrossZero(zAxisExtent);
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var dims = ['x', 'y', 'z'].map(function (coordDimName) {
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return seriesModel.coordDimToDataDim(coordDimName)[0];
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});
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var isStacked = isDimensionStacked(data, dims[2]);
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var valueDim = isStacked ? data.getCalculationInfo('stackResultDimension') : dims[2];
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data.each(dims, function (x, y, z, idx) {
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// TODO zAxis is inversed
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// TODO On different plane.
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var stackedValue = data.get(valueDim, idx);
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var baseValue = isStacked ? stackedValue - z : ifZAxisCrossZero ? 0 : zAxisExtent[0];
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var start = coordSys.dataToPoint([x, y, baseValue]);
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var end = coordSys.dataToPoint([x, y, stackedValue]);
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var height = vec3.dist(start, end); // PENDING When zAxis is not cross zero.
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var dir = [0, end[1] < start[1] ? -1 : 1, 0];
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if (Math.abs(height) === 0) {
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// TODO
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height = 0.1;
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}
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var size = [barSize[0], height, barSize[1]];
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data.setItemLayout(idx, [start, dir, size]);
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});
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data.setLayout('orient', [1, 0, 0]);
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}
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export default cartesian3DLayout;
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