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Have looked into lots of questions about replacing substrings, but none of the examples has been working for me. I have a string in geojson (feature.properties.openingHours), this properties has "Mon, Fri, Sat, Sun" together with times "00:00-24:00 Mon-Sun" etc. I need to change the weekdays to local language for the popup when a "click" occur on a point in the Leaflet map. The string can hold several opening hours like "00:00-20:00 Mon-Fri 08:00-20:00 Sat 08:00-18:00 Sun"
This is the latest I have tried and I get the error "days not defined", is this wrong way doing it, or what is missing?
Result should be from "00:00-24:00 Mon-Sun" => "00:00-24:00 Mån-Sön"
function openingHours(feature, latlng){
var days = feature.properties.openingHours
days = days.replace(/Mon/g, 'Mån')
days = days.replace(/Fri/g, 'Fre')
days = days.replace(/Sat/g, 'Lör')
days = days.replace(/Sun/g, 'Sön');
};
geoLayer = L.geoJson(json, {
pointToLayer: function (feature, latlng) {
return new L.shapeMarker(latlng, {radius: 7, color: '#b30000', fillOpacity: 0.7, weight: 2, shape: 'square'})
},
onEachFeature: function(feature, layer) {
var popupText = '';
popupText += (feature.properties.openingHours) ? '<br></b><i>Öppettider:</i>': '';
popupText += (feature.properties.openingHours) ? '<br></b><i>' + openingHours(days) + '</i><br>': '';
You pass to the openingHours function a undefined variable.
Change your code to:
function openingHours(feature){
var days = feature.properties.openingHours
days = days.replace(/Mon/g, 'Mån')
days = days.replace(/Fri/g, 'Fre')
days = days.replace(/Sat/g, 'Lör')
days = days.replace(/Sun/g, 'Sön');
return days;
};
geoLayer = L.geoJson(json, {
pointToLayer: function (feature, latlng) {
return new L.shapeMarker(latlng, {radius: 7, color: '#b30000', fillOpacity: 0.7, weight: 2, shape: 'square'})
},
onEachFeature: function(feature, layer) {
var popupText = '';
popupText += (feature.properties.openingHours) ? '<br></b><i>Öppettider:</i>': '';
popupText += (feature.properties.openingHours) ? '<br></b><i>' + openingHours(feature) + '</i><br>': '';
}
});
I have a problem that I can't solve. I want to use JointJS fromJSON function to reconstruct the flowchart from a JSON (previously exported using JoinJS's toJSON function.
The problem is that the call to the fromJSON function always returns the following error:
Whether I call it inside the hook mounted () or call it from the click of a button.
For completeness I also want to say that I am using Vue.js.
The code I'm using instead is the following:
<template>
<div class="wrapper">
<button v-on:click="getGraphJSON">Get graph JSON</button>
<button v-on:click="resetGraphJSON">Restore graph from JSON</button>
<div id="myholder"></div>
</div>
</template>
<script>
const _ = require('lodash')
const joint = require('jointjs')
const g = require('../../node_modules/jointjs/dist/geometry.js')
const backbone = require('../../node_modules/backbone/backbone.js')
const $ = require('../../node_modules/jquery/dist/jquery.js')
import '../../node_modules/jointjs/dist/joint.css';
var CustomRectangle = joint.shapes.standard.Rectangle.define('CustomRectangle', {
type: 'CustomRectangle',
attrs: {
body: {
rx: 10, // add a corner radius
ry: 10,
strokeWidth: 1,
fill: 'cornflowerblue'
},
label: {
textAnchor: 'left', // align text to left
refX: 10, // offset text from right edge of model bbox
fill: 'white',
fontSize: 18
}
}
}, {
markup: [{
tagName: 'rect',
selector: 'body',
}, {
tagName: 'text',
selector: 'label'
}]
}, {
createRandom: function() {
var rectangle = new this();
var fill = '#' + ('000000' + Math.floor(Math.random() * 16777215).toString(16)).slice(-6);
var stroke = '#' + ('000000' + Math.floor(Math.random() * 16777215).toString(16)).slice(-6);
var strokeWidth = Math.floor(Math.random() * 6);
var strokeDasharray = Math.floor(Math.random() * 6) + ' ' + Math.floor(Math.random() * 6);
var radius = Math.floor(Math.random() * 21);
rectangle.attr({
body: {
fill: fill,
stroke: stroke,
strokeWidth: strokeWidth,
strokeDasharray: strokeDasharray,
rx: radius,
ry: radius
},
label: { // ensure visibility on dark backgrounds
fill: 'black',
stroke: 'white',
strokeWidth: 1,
fontWeight: 'bold'
}
});
return rectangle;
}
});
export default {
name: 'JointChartRestorable',
data() {
return {
graph: null,
paper: null,
// graphJSON: JSON.parse('{"cells":[{"type":"standard.Rectangle","position":{"x":100,"y":30},"size":{"width":100,"height":40},"angle":0,"id":"049776c9-7b6d-4aaa-8b02-1edc3bea9852","z":1,"attrs":{"body":{"fill":"blue"},"label":{"fill":"white","text":"Rect #1"}}},{"type":"standard.Rectangle","position":{"x":400,"y":30},"size":{"width":100,"height":40},"angle":0,"id":"b6e77973-1195-4749-99e1-728549329b11","z":2,"attrs":{"body":{"fill":"#2C3E50","rx":5,"ry":5},"label":{"fontSize":18,"fill":"#3498DB","text":"Rect #2","fontWeight":"bold","fontVariant":"small-caps"}}},{"type":"standard.Link","source":{"id":"049776c9-7b6d-4aaa-8b02-1edc3bea9852"},"target":{"id":"b6e77973-1195-4749-99e1-728549329b11"},"id":"4ed8e3b3-55de-4ad2-b79e-d4848adc4a58","labels":[{"attrs":{"text":{"text":"Hello, World!"}}}],"z":3,"attrs":{"line":{"stroke":"blue","strokeWidth":1,"targetMarker":{"d":"M 10 -5 0 0 10 5 Z","stroke":"black","fill":"yellow"},"sourceMarker":{"type":"path","stroke":"black","fill":"red","d":"M 10 -5 0 0 10 5 Z"}}}}],"graphCustomProperty":true,"graphExportTime":1563951791966}')
// graphJSON: JSON.parse('{"cells":[{"type":"examples.CustomRectangle","position":{"x":90,"y":30},"size":{"width":100,"height":40},"angle":0,"id":"faa7f957-4691-4bb2-b907-b2054f7e07de","z":1,"attrs":{"body":{"fill":"blue"},"label":{"text":"Rect #1"}}}]}')
graphJSON: JSON.parse('{"cells":[{"type":"CustomRectangle","position":{"x":100,"y":30},"size":{"width":100,"height":40},"angle":0,"id":"f02da591-c03c-479f-88cf-55c291064ca8","z":1,"attrs":{"body":{"fill":"blue"},"label":{"text":"Rect #1"}}}]}')
};
},
methods: {
getGraphJSON: function() {
this.graphJSON = this.graph.toJSON();
console.log(JSON.stringify(this.graphJSON));
this.graph.get('graphCustomProperty'); // true
this.graph.get('graphExportTime');
},
resetGraphJSON: function() {
if(this.graphJSON !== undefined && this.graphJSON !== null && this.graphJSON !== '') {
this.graph.fromJSON(this.graphJSON);
// this.paper.model.set(this.graphJSON);
} else {
alert('Devi prima cliccare sul tasto "Get graph JSON" almeno una volta');
}
}
},
mounted() {
this.graph = new joint.dia.Graph();
this.graph.fromJSON(this.graphJSON);
// this.graph.set('graphCustomProperty', true);
// this.graph.set('graphExportTime', Date.now());
this.paper = new joint.dia.Paper({
el: document.getElementById('myholder'),
model: this.graph,
width: '100%',
height: 600,
gridSize: 10,
drawGrid: true,
background: {
color: 'rgba(0, 255, 0, 0.3)'
},
// interactive: false, // disable default interaction (e.g. dragging)
/*elementView: joint.dia.ElementView.extend({
pointerdblclick: function(evt, x, y) {
joint.dia.CellView.prototype.pointerdblclick.apply(this, arguments);
this.notify('element:pointerdblclick', evt, x, y);
this.model.remove();
}
}),
linkView: joint.dia.LinkView.extend({
pointerdblclick: function(evt, x, y) {
joint.dia.CellView.prototype.pointerdblclick.apply(this, arguments);
this.notify('link:pointerdblclick', evt, x, y);
this.model.remove();
}
})*/
});
/*this.paper.on('cell:pointerdblclick', function(cellView) {
var isElement = cellView.model.isElement();
var message = (isElement ? 'Element' : 'Link') + ' removed';
eventOutputLink.attr('label/text', message);
eventOutputLink.attr('body/visibility', 'visible');
eventOutputLink.attr('label/visibility', 'visible');
});*/
/***************************************************/
/************** GRAPH ELEMENT SAMPLE ***************/
/***************************************************/
// var rect = new joint.shapes.standard.Rectangle();
// var rect = new CustomRectangle();
// rect.position(100, 30);
// rect.resize(100, 40);
// rect.attr({
// body: {
// fill: 'blue'
// },
// label: {
// text: 'Rect #1',
// fill: 'white'
// }
// });
// rect.addTo(this.graph);
/***************************************************/
/************** GRAPH ELEMENT SAMPLE ***************/
/***************************************************/
}
}
</script>
Right now I'm using a custom element, previously defined, but I've also done tests using the standard Rectangle element of JointJS.
Can anyone tell me if I'm doing something wrong?
Many thanks in advance.
Markup object could not be found in element that's reason why this error is getting. After it's imported jointjs to the vueJS project through jointjs or rabbit dependency;
import * as joint from 'jointjs' or import * as joint from 'rabbit'
window.joint = joint;
joint should be adjusted as global in environment by using window.
I'm trying to create a choroplet map with diverging data (going from -0.7 to 0.7) and can't find a way so that my legend show the correct colors. The problem is because when colors are all positive signs is always > and is sequential. Now because I have negative numbers, it doesn't work anymore. How can I correct this?
// get color depending on population differentiel value
function getColor(d) {
return d > 0.7 ? '#b2182b' :
d > 0.5 ? '#d6604d' :
d > 0.3 ? '#f4a582' :
d > 0.1 ? '#fddbc7' :
d < -0.7 ? '#2166ac' :
d < -0.5 ? '#4393c3' :
d < -0.3 ? '#92c5de' :
d < -0.1 ? '#d1e5f0' :
'#f7f7f7';
}
var legend = L.control({position: 'bottomright'});
legend.onAdd = function (map) {
var div = L.DomUtil.create('div', 'info legend'),
grades = [-0.7, -0.5, -0.3, -0.1, 0.1, 0.3, 0.5, 0.7],
labels = [],
from, to;
for (var i = 0; i < grades.length; i++) {
from = grades[i];
to = grades[i + 1];
labels.push(
'<i style="background:' + getColor(from + 1) + '"></i> ' +
from + (to ? ' à ' + to : '+'));
}
div.innerHTML = labels.join('<br>');
return div;
};
The problem is because when colors are all positive signs is always > and is sequential. Now because I have negative numbers, it doesn't work anymore.
No, it's because you're mixing > and < without any good reason, instead of following a regular pattern of decreasing numbers, e.g.:
function getColor(d) {
return d > 0.7 ? '#b2182b' :
d > 0.5 ? '#d6604d' :
d > 0.3 ? '#f4a582' :
d > 0.1 ? '#fddbc7' :
d > -0.1 ? '#d1e5f0' :
d > -0.3 ? '#92c5de' :
d > -0.5 ? '#4393c3' :
d > -0.7 ? '#2166ac' :
'#f7f7f7';
}
Now the stop points are aligned, so every stop point is the smallest value for the color range.
I'd go even further and store the stops and range colors in a data structure, correlating the smallest end of a range with the corresponding colour:
var stops = [
{ stop: 0.7, color: '#b2182b' },
{ stop: 0.5, color: '#d6604d' },
{ stop: 0.3, color: '#f4a582' },
{ stop: 0.1, color: '#fddbc7' },
{ stop: -0.1, color: '#d1e5f0' },
{ stop: -0.3, color: '#92c5de' },
{ stop: -0.5, color: '#4393c3' },
{ stop: -0.7, color: '#2166ac' },
{ stop: -Infinity, color: '#f7f7f7' },
];
And recreate the getColor() function by looping through that data structure:
function getColor(d) {
for (var i in stops) {
if (d > stops[i].stop) { return stops[i].color; }
}
}
Note that all numbers are greater than -Infinity, so the last entry in that data structure shall work as the default case.
And create a legend by iterating through the same data structure, carrying over the range's upper stop from the previous step (and initializing that at Infinity, as that's the implicit upper stop for the first range):
var rangeMax = 'Infinity';
for (var i in stops) {
var rangeMin = stops[i].stop.toString();
var rangeColour = stops[i].color;
labels.push(
'<i style="background:' + rangeColour + '"></i> ' +
rangeMin + ' à ' + rangeMax
);
rangeMax = stops[i].stop;
}
getColor(from + 1) is the culprit. Because of the "+ 1", you will always be off your scale.
Note that even after removing it, you will be missing the lowest legend (< 0.7). You can handle it in a similar way as your highest legend.
I am trying to build a line chart using highchart.js that uses the color green and black. The data is pulled from an SQL database and if the value is higher than the previous value it is green. If the value is less than the previous value than the color is black.
I am new at this and have been searching and searching but the only things I find is using zones to change the colors.
Can anyone help me on this?
I created this example, it should help you :
series: [{
name: 'Random data',
colorByPoint: true,
data: (function() {
// generate an array of random data
var time = (new Date()).getTime(),
i,
yValue;
for (i = -19; i <= 0; i += 1) {
yValue = Math.random();
if (i > -19 && yValue > data[data.length - 1].y) { // Green point
zones.push({
color: "#5f9",
value: time + i * 1000,
});
} else if (i > -19 && yValue <= data[data.length - 1].y) { // black point
zones.push({
color: "#000",
value: time + i * 1000,
});
} else { // first point alway green
zones.push({
color: "#5f9",
value: time + i * 1000,
});
}
data.push({
x: time + i * 1000,
y: yValue
});
}
return data;
}()),
zoneAxis: "x",
zones: zones
}]
Fiddle
I have a requirement to render a set of time series data of contiguous blocks.
I need to describe a series of bars which could span many hours, or just minutes, with their own Y value.
I'm not sure if ChartJS is what I should be using for this, but I have looked at extending the Bar type, but it seems very hard coded for each bar to be the same width. The Scale Class internally is used for labels, chart width etc, not just the bars themselves.
I am trying to achieve something like this that works in Excel: http://peltiertech.com/variable-width-column-charts/
Has anyone else had to come up with something similar?
I found I needed to do this and the answer by #potatopeelings was great, but out of date for version 2 of Chartjs. I did something similar by creating my own controller/chart type via extending bar:
//controller.barw.js
module.exports = function(Chart) {
var helpers = Chart.helpers;
Chart.defaults.barw = {
hover: {
mode: 'label'
},
scales: {
xAxes: [{
type: 'category',
// Specific to Bar Controller
categoryPercentage: 0.8,
barPercentage: 0.9,
// grid line settings
gridLines: {
offsetGridLines: true
}
}],
yAxes: [{
type: 'linear'
}]
}
};
Chart.controllers.barw = Chart.controllers.bar.extend({
/**
* #private
*/
getRuler: function() {
var me = this;
var scale = me.getIndexScale();
var options = scale.options;
var stackCount = me.getStackCount();
var fullSize = scale.isHorizontal()? scale.width : scale.height;
var tickSize = fullSize / scale.ticks.length;
var categorySize = tickSize * options.categoryPercentage;
var fullBarSize = categorySize / stackCount;
var barSize = fullBarSize * options.barPercentage;
barSize = Math.min(
helpers.getValueOrDefault(options.barThickness, barSize),
helpers.getValueOrDefault(options.maxBarThickness, Infinity));
return {
fullSize: fullSize,
stackCount: stackCount,
tickSize: tickSize,
categorySize: categorySize,
categorySpacing: tickSize - categorySize,
fullBarSize: fullBarSize,
barSize: barSize,
barSpacing: fullBarSize - barSize,
scale: scale
};
},
/**
* #private
*/
calculateBarIndexPixels: function(datasetIndex, index, ruler) {
var me = this;
var scale = ruler.scale;
var options = scale.options;
var isCombo = me.chart.isCombo;
var stackIndex = me.getStackIndex(datasetIndex);
var base = scale.getPixelForValue(null, index, datasetIndex, isCombo);
var size = ruler.barSize;
var dataset = me.chart.data.datasets[datasetIndex];
if(dataset.weights) {
var total = dataset.weights.reduce((m, x) => m + x, 0);
var perc = dataset.weights[index] / total;
var offset = 0;
for(var i = 0; i < index; i++) {
offset += dataset.weights[i] / total;
}
var pixelOffset = Math.round(ruler.fullSize * offset);
var base = scale.isHorizontal() ? scale.left : scale.top;
base += pixelOffset;
size = Math.round(ruler.fullSize * perc);
size -= ruler.categorySpacing;
size -= ruler.barSpacing;
}
base -= isCombo? ruler.tickSize / 2 : 0;
base += ruler.fullBarSize * stackIndex;
base += ruler.categorySpacing / 2;
base += ruler.barSpacing / 2;
return {
size: size,
base: base,
head: base + size,
center: base + size / 2
};
},
});
};
Then you need to add it to your chartjs instance like this:
import Chart from 'chart.js'
import barw from 'controller.barw'
barw(Chart); //add plugin to chartjs
and finally, similar to the other answer, the weights of the bar widths need to be added to the data set:
var data = {
labels: ['A', 'B', 'C', 'D', 'E', 'F', 'G'],
datasets: [
{
label: "My First dataset",
fillColor: "rgba(220,220,220,0.5)",
strokeColor: "rgba(220,220,220,0.8)",
highlightFill: "rgba(220,220,220,0.7)",
highlightStroke: "rgba(220,220,220,1)",
data: [65, 59, 80, 30, 56, 65, 40],
weights: [1, 0.9, 1, 2, 1, 4, 0.3]
},
]
};
This will hopefully get someone onto the right track. What I have certainly isn't perfect, but if you make sure you have the right number of weight to data points, you should be right.
Best of luck.
This is based on the #Shane's code, I just posted to help, since is a common question.
calculateBarIndexPixels: function (datasetIndex, index, ruler) {
const options = ruler.scale.options;
const range = options.barThickness === 'flex' ? computeFlexCategoryTraits(index, ruler, options) : computeFitCategoryTraits(index, ruler, options);
const barSize = range.chunk;
const stackIndex = this.getStackIndex(datasetIndex, this.getMeta().stack);
let center = range.start + range.chunk * stackIndex + range.chunk / 2;
let size = range.chunk * range.ratio;
let start = range.start;
const dataset = this.chart.data.datasets[datasetIndex];
if (dataset.weights) {
//the max weight should be one
size = barSize * dataset.weights[index];
const meta = this.chart.controller.getDatasetMeta(0);
const lastModel = index > 0 ? meta.data[index - 1]._model : null;
//last column takes the full bar
if (lastModel) {
//start could be last center plus half of last column width
start = lastModel.x + lastModel.width / 2;
}
center = start + size * stackIndex + size / 2;
}
return {
size: size,
base: center - size / 2,
head: center + size / 2,
center: center
};
}
For Chart.js you can create a new extension based on the bar class to do this. It's a bit involved though - however most of it is a copy paste of the bar type library code
Chart.types.Bar.extend({
name: "BarAlt",
// all blocks that don't have a comment are a direct copy paste of the Chart.js library code
initialize: function (data) {
// the sum of all widths
var widthSum = data.datasets[0].data2.reduce(function (a, b) { return a + b }, 0);
// cumulative sum of all preceding widths
var cumulativeSum = [ 0 ];
data.datasets[0].data2.forEach(function (e, i, arr) {
cumulativeSum.push(cumulativeSum[i] + e);
})
var options = this.options;
// completely rewrite this class to calculate the x position and bar width's based on data2
this.ScaleClass = Chart.Scale.extend({
offsetGridLines: true,
calculateBarX: function (barIndex) {
var xSpan = this.width - this.xScalePaddingLeft;
var x = this.xScalePaddingLeft + (cumulativeSum[barIndex] / widthSum * xSpan) - this.calculateBarWidth(barIndex) / 2;
return x + this.calculateBarWidth(barIndex);
},
calculateBarWidth: function (index) {
var xSpan = this.width - this.xScalePaddingLeft;
return (xSpan * data.datasets[0].data2[index] / widthSum);
}
});
this.datasets = [];
if (this.options.showTooltips) {
Chart.helpers.bindEvents(this, this.options.tooltipEvents, function (evt) {
var activeBars = (evt.type !== 'mouseout') ? this.getBarsAtEvent(evt) : [];
this.eachBars(function (bar) {
bar.restore(['fillColor', 'strokeColor']);
});
Chart.helpers.each(activeBars, function (activeBar) {
activeBar.fillColor = activeBar.highlightFill;
activeBar.strokeColor = activeBar.highlightStroke;
});
this.showTooltip(activeBars);
});
}
this.BarClass = Chart.Rectangle.extend({
strokeWidth: this.options.barStrokeWidth,
showStroke: this.options.barShowStroke,
ctx: this.chart.ctx
});
Chart.helpers.each(data.datasets, function (dataset, datasetIndex) {
var datasetObject = {
label: dataset.label || null,
fillColor: dataset.fillColor,
strokeColor: dataset.strokeColor,
bars: []
};
this.datasets.push(datasetObject);
Chart.helpers.each(dataset.data, function (dataPoint, index) {
datasetObject.bars.push(new this.BarClass({
value: dataPoint,
label: data.labels[index],
datasetLabel: dataset.label,
strokeColor: dataset.strokeColor,
fillColor: dataset.fillColor,
highlightFill: dataset.highlightFill || dataset.fillColor,
highlightStroke: dataset.highlightStroke || dataset.strokeColor
}));
}, this);
}, this);
this.buildScale(data.labels);
// remove the labels - they won't be positioned correctly anyway
this.scale.xLabels.forEach(function (e, i, arr) {
arr[i] = '';
})
this.BarClass.prototype.base = this.scale.endPoint;
this.eachBars(function (bar, index, datasetIndex) {
// change the way the x and width functions are called
Chart.helpers.extend(bar, {
width: this.scale.calculateBarWidth(index),
x: this.scale.calculateBarX(index),
y: this.scale.endPoint
});
bar.save();
}, this);
this.render();
},
draw: function (ease) {
var easingDecimal = ease || 1;
this.clear();
var ctx = this.chart.ctx;
this.scale.draw(1);
Chart.helpers.each(this.datasets, function (dataset, datasetIndex) {
Chart.helpers.each(dataset.bars, function (bar, index) {
if (bar.hasValue()) {
bar.base = this.scale.endPoint;
// change the way the x and width functions are called
bar.transition({
x: this.scale.calculateBarX(index),
y: this.scale.calculateY(bar.value),
width: this.scale.calculateBarWidth(index)
}, easingDecimal).draw();
}
}, this);
}, this);
}
});
You pass in the widths like below
var data = {
labels: ['A', 'B', 'C', 'D', 'E', 'F', 'G'],
datasets: [
{
label: "My First dataset",
fillColor: "rgba(220,220,220,0.5)",
strokeColor: "rgba(220,220,220,0.8)",
highlightFill: "rgba(220,220,220,0.7)",
highlightStroke: "rgba(220,220,220,1)",
data: [65, 59, 80, 30, 56, 65, 40],
data2: [10, 20, 30, 20, 10, 40, 10]
},
]
};
and you call it like so
var ctx = document.getElementById('canvas').getContext('2d');
var myLineChart = new Chart(ctx).BarAlt(data);
Fiddle - http://jsfiddle.net/moye0cp4/