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Update web/ samples to work with Flutter SDK (#134)
* add package:http dependency in dad_jokes * add package:http dependency in filipino_cuisine * don't build package:http demos until flutter/flutter#34858 is resolved * update gallery * update github_dataviz * update particle_background * don't build github_dataviz (uses package:http) * update slide_puzzle * update spinning_square * update timeflow * update vision_challenge * update charts * update dad_jokes * update filipino cuisine * ignore build output * update timeflow and vision_challenge * update slide_puzzle * don't commit build/ directory * move preview.png images to assets * fix path url join * update readme * update web/readme.md
This commit is contained in:
John Ryan
GitHub
150
web/charts/lib/scatter_plot_chart/simple.dart
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150
web/charts/lib/scatter_plot_chart/simple.dart
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// Copyright 2018 the Charts project authors. Please see the AUTHORS file
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// for details.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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/// Scatter plot chart example
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// EXCLUDE_FROM_GALLERY_DOCS_START
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import 'dart:math';
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// EXCLUDE_FROM_GALLERY_DOCS_END
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import 'package:charts_flutter/flutter.dart' as charts;
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import 'package:flutter/material.dart';
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class SimpleScatterPlotChart extends StatelessWidget {
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final List<charts.Series> seriesList;
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final bool animate;
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SimpleScatterPlotChart(this.seriesList, {this.animate});
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/// Creates a [ScatterPlotChart] with sample data and no transition.
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factory SimpleScatterPlotChart.withSampleData() {
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return new SimpleScatterPlotChart(
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_createSampleData(),
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// Disable animations for image tests.
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animate: false,
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);
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}
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// EXCLUDE_FROM_GALLERY_DOCS_START
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// This section is excluded from being copied to the gallery.
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// It is used for creating random series data to demonstrate animation in
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// the example app only.
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factory SimpleScatterPlotChart.withRandomData() {
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return new SimpleScatterPlotChart(_createRandomData());
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}
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/// Create random data.
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static List<charts.Series<LinearSales, num>> _createRandomData() {
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final random = new Random();
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final makeRadius = (int value) => (random.nextInt(value) + 2).toDouble();
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final data = [
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new LinearSales(random.nextInt(100), random.nextInt(100), makeRadius(6)),
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new LinearSales(random.nextInt(100), random.nextInt(100), makeRadius(6)),
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new LinearSales(random.nextInt(100), random.nextInt(100), makeRadius(6)),
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new LinearSales(random.nextInt(100), random.nextInt(100), makeRadius(6)),
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new LinearSales(random.nextInt(100), random.nextInt(100), makeRadius(6)),
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new LinearSales(random.nextInt(100), random.nextInt(100), makeRadius(6)),
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new LinearSales(random.nextInt(100), random.nextInt(100), makeRadius(6)),
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new LinearSales(random.nextInt(100), random.nextInt(100), makeRadius(6)),
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new LinearSales(random.nextInt(100), random.nextInt(100), makeRadius(6)),
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new LinearSales(random.nextInt(100), random.nextInt(100), makeRadius(6)),
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new LinearSales(random.nextInt(100), random.nextInt(100), makeRadius(6)),
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new LinearSales(random.nextInt(100), random.nextInt(100), makeRadius(6)),
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];
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final maxMeasure = 100;
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return [
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new charts.Series<LinearSales, int>(
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id: 'Sales',
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colorFn: (LinearSales sales, _) {
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// Color bucket the measure column value into 3 distinct colors.
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final bucket = sales.sales / maxMeasure;
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if (bucket < 1 / 3) {
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return charts.MaterialPalette.blue.shadeDefault;
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} else if (bucket < 2 / 3) {
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return charts.MaterialPalette.red.shadeDefault;
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} else {
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return charts.MaterialPalette.green.shadeDefault;
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}
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},
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domainFn: (LinearSales sales, _) => sales.year,
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measureFn: (LinearSales sales, _) => sales.sales,
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radiusPxFn: (LinearSales sales, _) => sales.radius,
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data: data,
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)
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];
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}
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// EXCLUDE_FROM_GALLERY_DOCS_END
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@override
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Widget build(BuildContext context) {
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return new charts.ScatterPlotChart(seriesList, animate: animate);
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}
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/// Create one series with sample hard coded data.
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static List<charts.Series<LinearSales, int>> _createSampleData() {
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final data = [
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new LinearSales(0, 5, 3.0),
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new LinearSales(10, 25, 5.0),
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new LinearSales(12, 75, 4.0),
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new LinearSales(13, 225, 5.0),
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new LinearSales(16, 50, 4.0),
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new LinearSales(24, 75, 3.0),
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new LinearSales(25, 100, 3.0),
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new LinearSales(34, 150, 5.0),
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new LinearSales(37, 10, 4.5),
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new LinearSales(45, 300, 8.0),
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new LinearSales(52, 15, 4.0),
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new LinearSales(56, 200, 7.0),
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];
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final maxMeasure = 300;
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return [
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new charts.Series<LinearSales, int>(
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id: 'Sales',
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// Providing a color function is optional.
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colorFn: (LinearSales sales, _) {
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// Bucket the measure column value into 3 distinct colors.
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final bucket = sales.sales / maxMeasure;
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if (bucket < 1 / 3) {
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return charts.MaterialPalette.blue.shadeDefault;
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} else if (bucket < 2 / 3) {
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return charts.MaterialPalette.red.shadeDefault;
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} else {
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return charts.MaterialPalette.green.shadeDefault;
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}
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},
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domainFn: (LinearSales sales, _) => sales.year,
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measureFn: (LinearSales sales, _) => sales.sales,
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// Providing a radius function is optional.
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radiusPxFn: (LinearSales sales, _) => sales.radius,
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data: data,
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)
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];
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}
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}
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/// Sample linear data type.
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class LinearSales {
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final int year;
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final int sales;
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final double radius;
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LinearSales(this.year, this.sales, this.radius);
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}
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