Personnalisez la fonction de dessin de graphique.
Objet graphique. objet
Graphique (options)
LeoptionsLe paramètre est la configuration du graphique.Chart()paramètre de fonctionoptionsest unJSONsérialisableHighStocksparamètre pourHighcharts.StockChartUn autre__isStockl'attribut est ajouté sur le paramètre natif, et si__isStock:falseSi le graphique est spécifié, il s'affiche comme un graphique normal.__isStockl'attribut est défini sur une valeur fausse, par exemplefalse, c'est-à-dire que le graphique utilisé est unHighchartsSi le__isStockl'attribut est défini sur une valeur vraie, par exempletrue, c'est-à-dire que le graphique utilisé est unHighstocksgraphique (par défaut)__isStockest vrai par exempletrueVous pouvez consulter leBibliothèque de graphiques HighStocks- Je ne sais pas.
les options
vrai
objet, tableau d'objets
function main() {
var cfgA = {
extension: {
layout: 'single', // No grouping, display separately, default to group 'group'
height: 300, // Specify the height
},
title: {
text: 'handicap chart'
},
xAxis: {
type: 'datetime'
},
series: [{
name: 'buy one',
data: [],
}, {
name: 'sell one',
data: [],
}]
}
var cfgB = {
title: {
text: 'spread chart'
},
xAxis: {
type: 'datetime'
},
series: [{
name: 'spread',
type: 'column',
data: [],
}]
}
var cfgC = {
__isStock: false,
title: {
text: 'pie chart'
},
series: [{
type: 'pie',
name: 'one',
data: [
["A", 25],
["B", 25],
["C", 25],
["D", 25],
] // Instead of updating the initial data with the add function, the sequence can be updated by changing the chart configuration directly.
}]
};
var cfgD = {
extension: {
layout: 'single',
col: 8, // Specify the cell value for the width, the total value is 12
height: '300px',
},
title: {
text: 'handicap chart'
},
xAxis: {
type: 'datetime'
},
series: [{
name: 'buy one',
data: [],
}, {
name: 'sell one',
data: [],
}]
}
var cfgE = {
__isStock: false,
extension: {
layout: 'single',
col: 4,
height: '300px',
},
title: {
text: 'pie chart2'
},
series: [{
type: 'pie',
name: 'one',
data: [
["A", 25],
["B", 25],
["C", 25],
["D", 25],
]
}]
};
var chart = Chart([cfgA, cfgB, cfgC, cfgD, cfgE]);
chart.reset()
// Add a number of points to the pie chart, add can only update the data points added by add, built-in data points cannot be updated later.
chart.add(3, {
name: "ZZ",
y: Math.random() * 100
});
while (true) {
Sleep(1000)
var ticker = exchange.GetTicker()
if (!ticker) {
continue;
}
var diff = ticker.Sell - ticker.Buy
cfgA.subtitle = {
text: 'buy one ' + ticker.Buy + ', sell one ' + ticker.Sell,
};
cfgB.subtitle = {
text: 'spread ' + diff,
};
chart.add([0, [new Date().getTime(), ticker.Buy]]);
chart.add([1, [new Date().getTime(), ticker.Sell]]);
// Equivalent to updating the first data series of the second chart
chart.add([2, [new Date().getTime(), diff]]);
chart.add(4, [new Date().getTime(), ticker.Buy]);
chart.add(5, [new Date().getTime(), ticker.Buy]);
cfgC.series[0].data[0][1] = Math.random() * 100;
cfgE.series[0].data[0][1] = Math.random() * 100;
// update is actually the same as resetting the chart's configuration
chart.update([cfgA, cfgB, cfgC, cfgD, cfgE]);
}
}
import random
import time
def main():
cfgA = {
"extension" : {
"layout" : "single",
"height" : 300,
"col" : 8
},
"title" : {
"text" : "handicap chart"
},
"xAxis" : {
"type" : "datetime"
},
"series" : [{
"name" : "buy one",
"data" : []
}, {
"name" : "sell one",
"data" : []
}]
}
cfgB = {
"title" : {
"text" : "spread chart"
},
"xAxis" : {
"type" : "datetime",
},
"series" : [{
"name" : "spread",
"type" : "column",
"data" : []
}]
}
cfgC = {
"__isStock" : False,
"title" : {
"text" : "pie chart"
},
"series" : [{
"type" : "pie",
"name" : "one",
"data" : [
["A", 25],
["B", 25],
["C", 25],
["D", 25],
]
}]
}
cfgD = {
"extension" : {
"layout" : "single",
"col" : 8,
"height" : "300px"
},
"title" : {
"text" : "handicap chart"
},
"series" : [{
"name" : "buy one",
"data" : []
}, {
"name" : "sell one",
"data" : []
}]
}
cfgE = {
"__isStock" : False,
"extension" : {
"layout" : "single",
"col" : 4,
"height" : "300px"
},
"title" : {
"text" : "pie chart2"
},
"series" : [{
"type" : "pie",
"name" : "one",
"data" : [
["A", 25],
["B", 25],
["C", 25],
["D", 25]
]
}]
}
chart = Chart([cfgA, cfgB, cfgC, cfgD, cfgE])
chart.reset()
chart.add(3, {
"name" : "ZZ",
"y" : random.random() * 100
})
while True:
Sleep(1000)
ticker = exchange.GetTicker()
if not ticker :
continue
diff = ticker["Sell"] - ticker["Buy"]
cfgA["subtitle"] = {
"text" : "buy one" + str(ticker["Buy"]) + "sell one" + str(ticker["Sell"])
}
cfgB["subtitle"] = {
"text" : "spread " + str(diff)
}
chart.add(0, [time.time() * 1000, ticker["Buy"]])
chart.add(1, [time.time() * 1000, ticker["Sell"]])
chart.add(2, [time.time() * 1000, diff])
chart.add(4, [time.time() * 1000, ticker["Buy"]])
chart.add(5, [time.time() * 1000, ticker["Buy"]])
cfgC["series"][0]["data"][0][1] = random.random() * 100
cfgE["series"][0]["data"][0][1] = random.random() * 100
void main() {
json cfgA = R"({
"extension" : {
"layout" : "single",
"height" : 300,
"col" : 8
},
"title" : {
"text" : "handicap chart"
},
"xAxis" : {
"type" : "datetime"
},
"series" : [{
"name" : "buy one",
"data" : []
}, {
"name" : "sell one",
"data" : []
}]
})"_json;
json cfgB = R"({
"title" : {
"text" : "spread chart"
},
"xAxis" : {
"type" : "datetime"
},
"series" : [{
"name" : "spread",
"type" : "column",
"data" : []
}]
})"_json;
json cfgC = R"({
"__isStock" : false,
"title" : {
"text" : "pie chart"
},
"series" : [{
"type" : "pie",
"name" : "one",
"data" : [
["A", 25],
["B", 25],
["C", 25],
["D", 25]
]
}]
})"_json;
json cfgD = R"({
"extension" : {
"layout" : "single",
"col" : 8,
"height" : "300px"
},
"title" : {
"text" : "handicap chart"
},
"series" : [{
"name" : "buy one",
"data" : []
}, {
"name" : "sell one",
"data" : []
}]
})"_json;
json cfgE = R"({
"__isStock" : false,
"extension" : {
"layout" : "single",
"col" : 4,
"height" : "300px"
},
"title" : {
"text" : "pie chart2"
},
"series" : [{
"type" : "pie",
"name" : "one",
"data" : [
["A", 25],
["B", 25],
["C", 25],
["D", 25]
]
}]
})"_json;
auto chart = Chart({cfgA, cfgB, cfgC, cfgD, cfgE});
chart.reset();
json zz = R"({
"name" : "ZZ",
"y" : 0
})"_json;
zz["y"] = rand() % 100;
chart.add(3, zz);
while(true) {
Sleep(1000);
auto ticker = exchange.GetTicker();
if(!ticker.Valid) {
continue;
}
auto diff = ticker.Sell - ticker.Buy;
json cfgASubTitle = R"({"text" : ""})"_json;
cfgASubTitle["text"] = format("buy one %f , sell one %f", ticker.Buy, ticker.Sell);
cfgA["subtitle"] = cfgASubTitle;
json cfgBSubTitle = R"({"text" : ""})"_json;
cfgBSubTitle["text"] = format("spread %f", diff);
cfgB["subtitle"] = cfgBSubTitle;
chart.add(0, {Unix() * 1000, ticker.Buy});
chart.add(1, {Unix() * 1000, ticker.Sell});
chart.add(2, {Unix() * 1000, diff});
chart.add(4, {Unix() * 1000, ticker.Buy});
chart.add(5, {Unix() * 1000, ticker.Buy});
cfgC["series"][0]["data"][0][1] = rand() % 100;
cfgE["series"][0]["data"][0][1] = rand() % 100;
chart.update({cfgA, cfgB, cfgC, cfgD, cfgE});
}
}
Configuration de dessin à plusieurs graphiques:
extension.layoutattribut
Si l'attribut est défini avec la valeur extension.heightattribut
L'attribut est utilisé pour définir la hauteur du graphique, soit comme une valeur numérique, soit comme extension.colattribut
L'attribut est utilisé pour définir la largeur du graphique, la largeur de la page est divisée en 12 cellules, ensemble 8, c'est-à-dire que le graphique occupe 8 cellules de largeur.// This chart is an object in the JavaScript language, and before using the Chart function, we need to declare an object variable chart to configure the chart. var chart = {
// This field marks whether the chart is a general chart or not, if you are interested, you can change it to false and run it.
__isStock: true,
// Scaling tool
tooltip: {xDateFormat: '%Y-%m-%d %H:%M:%S, %A'},
// title
title : { text : 'spread analysis chart'},
// selection range
rangeSelector: {
buttons: [{type: 'hour',count: 1, text: '1h'}, {type: 'hour',count: 3, text: '3h'}, {type: 'hour', count: 8, text: '8h'}, {type: 'all',text: 'All'}],
selected: 0,
inputEnabled: false
},
// Coordinate axis horizontal axis that is: x-axis, the current setting type is: time
xAxis: { type: 'datetime'},
// Coordinate axis vertical axis that is: y-axis, default value adjusted with the size of the data
yAxis : {
// title
title: {text: 'spread'},
// Whether to enable the right vertical axis
opposite: false
},
// Data series, this sttribute holds the individual data series (lines, K-charts, labels, etc...)
series : [
// The index is 0, and the data array holds the data of the index series
{name : "line1", id : "line1,buy1Price", data : []},
// Index is 1, set dashStyle:'shortdash' i.e.: set the dashed line
{name : "line2", id : "line2,lastPrice", dashStyle : 'shortdash', data : []}
]
} function main(){
// Call the Chart function to initialize the chart
var ObjChart = Chart(chart)
// Clear out
ObjChart.reset()
while(true){
// Gets the timestamp of this poll, i.e. a millisecond timestamp. It's used to determine the position of the X-axis written to the chart.
var nowTime = new Date().getTime()
// Get the ticker data
var ticker = _C(exchange.GetTicker)
// Get buy one price from the return value of the ticker data
var buy1Price = ticker.Buy
// To obtain the final transaction price, we add 1 in order not to overlap the 2 lines
var lastPrice = ticker.Last + 1
// Data sequence with timestamp as X-value and buy one price as Y-value passed into index 0
ObjChart.add(0, [nowTime, buy1Price])
// ditto
ObjChart.add(1, [nowTime, lastPrice])
Sleep(2000)
}
}```
```python
import time
chart = {
"__isStock" : True,
"tooltip" : {"xDateFormat" : "%Y-%m-%d %H:%M:%S, %A"},
"title" : {"text" : "spread analysis chart"},
"rangeSelector" : {
"buttons" : [{"type": "count", "count": 1, "text": "1h"}, {"type": "hour", "count": 3, "text": "3h"}, {"type": "hour", "count": 8, "text": "8h"}, {"type": "all", "text": "All"}],
"selected": 0,
"inputEnabled": False
},
"xAxis": {"type": "datetime"},
"yAxis": {
"title": {"text": "spread"},
"opposite": False
},
"series": [{
"name": "line1", "id": "line1,buy1Price", "data": []
}, {
"name": "line2", "id": "line2,lastPrice", "dashStyle": "shortdash", "data": []
}]
}
def main():
ObjChart = Chart(chart)
ObjChart.reset()
while True:
nowTime = time.time() * 1000
ticker = exchange.GetTicker()
buy1Price = ticker["Buy"]
lastPrice = ticker["Last"] + 1
ObjChart.add(0, [nowTime, buy1Price])
ObjChart.add(1, [nowTime, lastPrice])
Sleep(2000)
void main() {
// When writing strategies in C++, try not to declare global variables that are not of the base type, so the chart configuration object is declared inside the main function.
json chart = R"({
"__isStock" : true,
"tooltip" : {"xDateFormat" : "%Y-%m-%d %H:%M:%S, %A"},
"title" : {"text" : "spread analysis chart"},
"rangeSelector" : {
"buttons" : [{"type": "count", "count": 1, "text": "1h"}, {"type": "hour", "count": 3, "text": "3h"}, {"type": "hour", "count": 8, "text": "8h"}, {"type": "all", "text": "All"}],
"selected": 0,
"inputEnabled": false
},
"xAxis": {"type": "datetime"},
"yAxis": {
"title": {"text": "spread"},
"opposite": false
},
"series": [{
"name": "line1", "id": "line1,buy1Price", "data": []
}, {
"name": "line2", "id": "line2,lastPrice", "dashStyle": "shortdash", "data": []
}]
})"_json;
auto ObjChart = Chart(chart);
ObjChart.reset();
while(true) {
auto nowTime = Unix() * 1000;
auto ticker = exchange.GetTicker();
auto buy1Price = ticker.Buy;
auto lastPrice = ticker.Last + 1.0;
ObjChart.add(0, {nowTime, buy1Price});
ObjChart.add(1, {nowTime, lastPrice});
Sleep(2000);
}
}
Exemple de dessin simple:
// Objects used to initialize the chart
var chart = {
// Chart title
title: {text: "line value triggers the plotLines value"},
// Y-axis related settings
yAxis: {
// A horizontal line perpendicular to the Y-axis, used as a trigger line, is a structural array that can set multiple trigger lines
plotLines: [{
// The value of the trigger line, how much it set, this line will be displayed in the corresponding value position
value: 0,
// Set the color of the trigger line
color: 'red',
// Width
width: 2,
// Displaying labels
label: {
// Label text
text: 'Trigger value',
// Centered label position
align: 'center'
}
}]
},
// X-axis related settings, here the setting type is time axis
xAxis: {type: "datetime"},
series: [
{name: "sin", type: "spline", data: []},
// This is an important data series, you can set multiple data series, according to the array index control
{name: "cos", type: "spline", data: []}
]
}
function main(){
// Circumference
var pi = 3.1415926535897
// Variables for recording timestamps
var time = 0
// Angle
var angle = 0
// Coordinate y values for receiving sine and cosine values
var y = 0
// Call the API interface to initialize the chart with the chart object
var objChart = Chart(chart)
// Initially, clear the chart
objChart.reset()
// Set the value of the trigger line to 1
chart.yAxis.plotLines[0].value = 1
// Loop
while(true){
// Get the timestamp of the current moment
time = new Date().getTime()
// Angle increases by 5 degrees every 500ms and calculates the sine value
y = Math.sin(angle * 2 * pi / 360)
// Write the calculated y value to the data series of the corresponding index of the chart, the first parameter of the add function is the specified data series index
objChart.add(0, [time, y])
// Calculate the cosine value
y = Math.cos(angle * 2 * pi / 360)
objChart.add(1, [time, y])
// Increase by 5 degrees
angle += 5
// Pause for 5 seconds to avoid drawing too often and growing data too fast
Sleep(5000)
}
}
import math
import time
chart = {
"title": {"text": "line value triggers the plotLines value"},
"yAxis": {
"plotLines": [{
"value": 0,
"color": "red",
"width": 2,
"label": {
"text": "trigger value",
"align": "center"
}
}]
},
"xAxis": {"type": "datetime"},
"series": [{"name": "sin", "type": "spline", "data": []},
{"name": "cos", "type": "spline", "data": []}]
}
def main():
pi = 3.1415926535897
ts = 0
angle = 0
y = 0
objChart = Chart(chart)
objChart.reset()
chart["yAxis"]["plotLines"][0]["value"] = 1
while True:
ts = time.time() * 1000
y = math.sin(angle * 2 * pi / 360)
objChart.add(0, [ts, y])
y = math.cos(angle * 2 * pi / 360)
objChart.add(1, [ts, y])
angle += 5
Sleep(5000)
void main() {
json chart = R"({
"title": {"text": "line value triggers the plotLines value"},
"yAxis": {
"plotLines": [{
"value": 0,
"color": "red",
"width": 2,
"label": {
"text": "trigger value",
"align": "center"
}
}]
},
"xAxis": {"type": "datetime"},
"series": [{"name": "sin", "type": "spline", "data": []},
{"name": "cos", "type": "spline", "data": []}]
})"_json;
auto pi = 3.1415926535897;
auto ts = 0;
auto angle = 0.0;
auto y = 0.0;
auto objChart = Chart(chart);
objChart.reset();
chart["yAxis"]["plotLines"][0]["value"] = 1;
while(true) {
ts = Unix() * 1000;
y = sin(angle * 2 * pi / 360);
objChart.add(0, {ts, y});
y = cos(angle * 2 * pi / 360);
objChart.add(1, {ts, y});
angle += 5;
Sleep(5000);
}
}
Exemple de dessin de courbe trigonométrique:
/*backtest
start: 2020-03-11 00:00:00
end: 2020-04-09 23:59:00
period: 1d
exchanges: [{"eid":"Bitfinex","currency":"BTC_USD"}]
*/
var chartCfg = {
subtitle: {
text: "subtitle",
},
yAxis: [{
height: "40%",
lineWidth: 2,
title: {
text: 'PnL',
},
tickPixelInterval: 20,
minorGridLineWidth: 1,
minorTickWidth: 0,
opposite: true,
labels: {
align: "right",
x: -3,
}
}, {
title: {
text: 'Profit',
},
top: "42%",
height: "18%",
offset: 0,
lineWidth: 2
}, {
title: {
text: 'Vol',
},
top: '62%',
height: '18%',
offset: 0,
lineWidth: 2
}, {
title: {
text: 'Asset',
},
top: '82%',
height: '18%',
offset: 0,
lineWidth: 2
}],
series: [{
name: 'PnL',
data: [],
id: 'primary',
tooltip: {
xDateFormat: '%Y-%m-%d %H:%M:%S'
},
yAxis: 0
}, {
type: 'column',
lineWidth: 2,
name: 'Profit',
data: [],
yAxis: 1,
}, {
type: 'column',
name: 'Trade',
data: [],
yAxis: 2
}, {
type: 'area',
step: true,
lineWidth: 0,
name: 'Long',
data: [],
yAxis: 2
}, {
type: 'area',
step: true,
lineWidth: 0,
name: 'Short',
data: [],
yAxis: 2
}, {
type: 'line',
step: true,
color: '#5b4b00',
name: 'Asset',
data: [],
yAxis: 3
}, {
type: 'pie',
innerSize: '70%',
name: 'Random',
data: [],
center: ['3%', '6%'],
size: '15%',
dataLabels: {
enabled: false
},
startAngle: -90,
endAngle: 90,
}],
};
function main() {
let c = Chart(chartCfg);
let preTicker = null;
while (true) {
let t = exchange.GetTicker();
c.add(0, [t.Time, t.Last]); // PnL
c.add(1, [t.Time, preTicker ? t.Last - preTicker.Last : 0]); // profit
let r = Math.random();
var pos = parseInt(t.Time/86400);
c.add(2, [t.Time, pos/2]); // Vol
c.add(3, [t.Time, r > 0.8 ? pos : null]); // Long
c.add(4, [t.Time, r < 0.8 ? -pos : null]); // Short
c.add(5, [t.Time, Math.random() * 100]); // Asset
// update pie
chartCfg.series[chartCfg.series.length-1].data = [
["A", Math.random()*100],
["B", Math.random()*100],
];
c.update(chartCfg)
preTicker = t;
}
}
'''backtest
start: 2020-03-11 00:00:00
end: 2020-04-09 23:59:00
period: 1d
exchanges: [{"eid":"Bitfinex","currency":"BTC_USD"}]
'''
import random
chartCfg = {
"subtitle": {
"text": "subtitle"
},
"yAxis": [{
"height": "40%",
"lineWidth": 2,
"title": {
"text": 'PnL'
},
"tickPixelInterval": 20,
"minorGridLineWidth": 1,
"minorTickWidth": 0,
"opposite": True,
"labels": {
"align": "right",
"x": -3
}
}, {
"title": {
"text": 'Profit'
},
"top": "42%",
"height": "18%",
"offset": 0,
"lineWidth": 2
}, {
"title": {
"text": 'Vol'
},
"top": '62%',
"height": '18%',
"offset": 0,
"lineWidth": 2
}, {
"title": {
"text": 'Asset'
},
"top": '82%',
"height": '18%',
"offset": 0,
"lineWidth": 2
}],
"series": [{
"name": 'PnL',
"data": [],
"id": 'primary',
"tooltip": {
"xDateFormat": '%Y-%m-%d %H:%M:%S'
},
"yAxis": 0
}, {
"type": 'column',
"lineWidth": 2,
"name": 'Profit',
"data": [],
"yAxis": 1
}, {
"type": 'column',
"name": 'Trade',
"data": [],
"yAxis": 2
}, {
"type": 'area',
"step": True,
"lineWidth": 0,
"name": 'Long',
"data": [],
"yAxis": 2
}, {
"type": 'area',
"step": True,
"lineWidth": 0,
"name": 'Short',
"data": [],
"yAxis": 2
}, {
"type": 'line',
"step": True,
"color": '#5b4b00',
"name": 'Asset',
"data": [],
"yAxis": 3
}, {
"type": 'pie',
"innerSize": '70%',
"name": 'Random',
"data": [],
"center": ['3%', '6%'],
"size": '15%',
"dataLabels": {
"enabled": False
},
"startAngle": -90,
"endAngle": 90
}]
}
def main():
c = Chart(chartCfg)
preTicker = None
while True:
t = exchange.GetTicker()
c.add(0, [t["Time"], t["Last"]])
profit = t["Last"] - preTicker["Last"] if preTicker else 0
c.add(1, [t["Time"], profit])
r = random.random()
pos = t["Time"] / 86400
c.add(2, [t["Time"], pos / 2])
long = pos if r > 0.8 else None
c.add(3, [t["Time"], long])
short = -pos if r < 0.8 else None
c.add(4, [t["Time"], short])
c.add(5, [t["Time"], random.random() * 100])
# update pie
chartCfg["series"][len(chartCfg["series"]) - 1]["data"] = [
["A", random.random() * 100],
["B", random.random() * 100]
]
c.update(chartCfg)
preTicker = t
/*backtest
start: 2020-03-11 00:00:00
end: 2020-04-09 23:59:00
period: 1d
exchanges: [{"eid":"Bitfinex","currency":"BTC_USD"}]
*/
void main() {
json chartCfg = R"({
"subtitle": {
"text": "subtitle"
},
"yAxis": [{
"height": "40%",
"lineWidth": 2,
"title": {
"text": "PnL"
},
"tickPixelInterval": 20,
"minorGridLineWidth": 1,
"minorTickWidth": 0,
"opposite": true,
"labels": {
"align": "right",
"x": -3
}
}, {
"title": {
"text": "Profit"
},
"top": "42%",
"height": "18%",
"offset": 0,
"lineWidth": 2
}, {
"title": {
"text": "Vol"
},
"top": "62%",
"height": "18%",
"offset": 0,
"lineWidth": 2
}, {
"title": {
"text": "Asset"
},
"top": "82%",
"height": "18%",
"offset": 0,
"lineWidth": 2
}],
"series": [{
"name": "PnL",
"data": [],
"id": "primary",
"tooltip": {
"xDateFormat": "%Y-%m-%d %H:%M:%S"
},
"yAxis": 0
}, {
"type": "column",
"lineWidth": 2,
"name": "Profit",
"data": [],
"yAxis": 1
}, {
"type": "column",
"name": "Trade",
"data": [],
"yAxis": 2
}, {
"type": "area",
"step": true,
"lineWidth": 0,
"name": "Long",
"data": [],
"yAxis": 2
}, {
"type": "area",
"step": true,
"lineWidth": 0,
"name": "Short",
"data": [],
"yAxis": 2
}, {
"type": "line",
"step": true,
"color": "#5b4b00",
"name": "Asset",
"data": [],
"yAxis": 3
}, {
"type": "pie",
"innerSize": "70%",
"name": "Random",
"data": [],
"center": ["3%", "6%"],
"size": "15%",
"dataLabels": {
"enabled": false
},
"startAngle": -90,
"endAngle": 90
}]
})"_json;
Chart c = Chart(chartCfg);
Ticker preTicker;
while(true) {
auto t = exchange.GetTicker();
c.add(0, {t.Time, t.Last});
auto profit = preTicker.Valid ? t.Last - preTicker.Last : 0;
c.add(1, {t.Time, profit});
auto r = rand() % 100;
auto pos = t.Time / 86400.0;
c.add(2, {t.Time, pos / 2.0});
auto longPos = r > 0.8 ? pos : NULL;
c.add(3, {t.Time, longPos});
auto shortPos = r < 0.8 ? -pos : NULL;
c.add(4, {t.Time, shortPos});
c.add(5, {t.Time, rand() % 100});
// update pie
json pie = R"([["A", 0], ["B", 0]])"_json;
pie[0][1] = rand() % 100;
pie[1][1] = rand() % 100;
chartCfg["series"][chartCfg["series"].size() - 1]["data"] = pie;
c.update(chartCfg);
preTicker = t;
}
}
Exemples complexes d'utilisation de graphiques hybrides:
// update pie
chartCfg.series[chartCfg.series.length-1].data = [
["A", Math.random()*100],
["B", Math.random()*100],
];
c.update(chartCfg)
# update pie
chartCfg["series"][len(chartCfg["series"]) - 1]["data"] = [
["A", random.random() * 100],
["B", random.random() * 100]
]
c.update(chartCfg)
// update pie
json pie = R"([["A", 0], ["B", 0]])"_json;
pie[0][1] = rand() % 100;
pie[1][1] = rand() % 100;
chartCfg["series"][chartCfg["series"].size() - 1]["data"] = pie;
c.update(chartCfg);
Cartes de typepiesont des graphiques sans chronologie, et vous devez mettre à jour la configuration du graphique directement lors de la mise à jour des données.c.update(chartCfg)après mise à jour des données, comme suit:
LeChart()la fonction renvoie un objet graphique qui a 4 méthodes:add(), reset(), update(), del().
update()méthode:
Leupdate()Cette méthode peut mettre à jour les informations de configuration du graphique.del()méthode:
Ledel()Cette méthode peut supprimer la série de données de l'indice spécifié en fonction du paramètre de série passé.add()méthode:
Leadd()La méthode peut écrire des données sur le graphique, avec les paramètres suivants dans l'ordre:series: utilisé pour définir l'indice de la série de données, qui est un entier.data: utilisé pour définir les données spécifiques à écrire, il s'agit d'un tableau.index(facultatif): utilisé pour définir l'index des données, il s'agit d'un entier.-1fait référence aux dernières données de l'ensemble de données.
Par exemple, lors du dessin d'une ligne, modifiez les données du dernier point de la ligne:chart.add(0, [1574993606000, 13.5], -1), c'est-à-dire modifier les données sur l'avant-dernier premier point du graphiqueseries[0].data- Je ne sais pas.
Leindexle paramètre n'est pas défini, ce qui signifie que les données sont ajoutées au dernier point de la série de données en cours.reset()méthode:
Lereset()La méthode est utilisée pour vider lesreset()la méthode peut prendre un paramètreremainpour spécifier le nombre d'entrées à conserver.remainest passé pour effacer toutes les données.J'espère que tu as bien fait.
Le logiciel est activé. Le tableau KLine