linesLayout.js
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/* global Float32Array */
import createRenderPlanner from '../helper/createRenderPlanner';
export default {
seriesType: 'lines',
plan: createRenderPlanner(),
reset: function (seriesModel) {
var coordSys = seriesModel.coordinateSystem;
var isPolyline = seriesModel.get('polyline');
var isLarge = seriesModel.pipelineContext.large;
function progress(params, lineData) {
var lineCoords = [];
if (isLarge) {
var points;
var segCount = params.end - params.start;
if (isPolyline) {
var totalCoordsCount = 0;
for (var i = params.start; i < params.end; i++) {
totalCoordsCount += seriesModel.getLineCoordsCount(i);
}
points = new Float32Array(segCount + totalCoordsCount * 2);
}
else {
points = new Float32Array(segCount * 4);
}
var offset = 0;
var pt = [];
for (var i = params.start; i < params.end; i++) {
var len = seriesModel.getLineCoords(i, lineCoords);
if (isPolyline) {
points[offset++] = len;
}
for (var k = 0; k < len; k++) {
pt = coordSys.dataToPoint(lineCoords[k], false, pt);
points[offset++] = pt[0];
points[offset++] = pt[1];
}
}
lineData.setLayout('linesPoints', points);
}
else {
for (var i = params.start; i < params.end; i++) {
var itemModel = lineData.getItemModel(i);
var len = seriesModel.getLineCoords(i, lineCoords);
var pts = [];
if (isPolyline) {
for (var j = 0; j < len; j++) {
pts.push(coordSys.dataToPoint(lineCoords[j]));
}
}
else {
pts[0] = coordSys.dataToPoint(lineCoords[0]);
pts[1] = coordSys.dataToPoint(lineCoords[1]);
var curveness = itemModel.get('lineStyle.curveness');
if (+curveness) {
pts[2] = [
(pts[0][0] + pts[1][0]) / 2 - (pts[0][1] - pts[1][1]) * curveness,
(pts[0][1] + pts[1][1]) / 2 - (pts[1][0] - pts[0][0]) * curveness
];
}
}
lineData.setItemLayout(i, pts);
}
}
}
return { progress: progress };
}
};