Skip to content

make x-axis linear in market depth chart #53

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
skzap wants to merge 4 commits into
base: master
Choose a base branch
from
Open

make x-axis linear in market depth chart #53

Changes from all commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
ea7c2e6
make x-axis linear
skzap Apr 20, 2019
3bc31b6
merge conflicts
skzap Jun 11, 2019
44e6f71
fix typo
skzap Jun 11, 2019
5e7e895
Merge branch 'master' into skzap-master
Vheissu Jun 13, 2019
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
94 changes: 47 additions & 47 deletions views/market_view.html
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -286,35 +286,43 @@ <h4 class="font-weight-bold">Trade History</h4>
});

// prepare chart datasets
var buyOrderLabels = _.uniq(data.buy_orders.map(o => parseFloat(o.price)));
var buyOrderDataset = [];
var buyOrderCurrentVolume = 0;
buyOrderLabels.forEach(label => {
let matchingBuyOrders = data.buy_orders.filter(o => parseFloat(o.price) === label);

if (matchingBuyOrders.length === 0) {
buyOrderDataset.push(null);
} else {
buyOrderCurrentVolume = buyOrderCurrentVolume + matchingBuyOrders.reduce((acc, val) => acc + parseFloat(val.quantity), 0);
buyOrderDataset.push(buyOrderCurrentVolume);
}
});
buyOrderLabels.reverse();
buyOrderDataset.reverse();

var sellOrderLabels = _.uniq(data.sell_orders.map(o => parseFloat(o.price)));
var sellOrderDataset = _.fill(Array(buyOrderDataset.length), null);
var sellOrderCurrentVolume = 0;
sellOrderLabels.forEach(label => {
let matchingSellOrders = data.sell_orders.filter(o => parseFloat(o.price) === label);

if (matchingSellOrders.length === 0) {
sellOrderDataset.push(null);
} else {
sellOrderCurrentVolume = sellOrderCurrentVolume + matchingSellOrders.reduce((acc, val) => acc + parseFloat(val.quantity), 0);
sellOrderDataset.push(sellOrderCurrentVolume);
}
});
for (let i = 0; i < data.sell_orders.length; i++) {
data.sell_orders[i].stacked_volume = parseFloat(data.sell_orders[i].quantity) * parseFloat(data.sell_orders[i].price)
if (i > 0)
data.sell_orders[i].stacked_volume += data.sell_orders[i-1].stacked_volume
}
for (let i = 0; i < data.buy_orders.length; i++) {
data.buy_orders[i].stacked_volume = parseFloat(data.buy_orders[i].quantity) * parseFloat(data.buy_orders[i].price)
if (i > 0)
data.buy_orders[i].stacked_volume += data.buy_orders[i-1].stacked_volume
}
var datasets = []
if (data.buy_orders.length > 0)
datasets.push({
label: 'Buy',
steppedLine: 'after',
borderColor: '#88e86b',
backgroundColor: '#a9ea96',
data: data.buy_orders.map(o => {
return {
x:parseFloat(o.price),
y:parseFloat(o.stacked_volume)
}
}).concat({x:0, y: data.buy_orders[data.buy_orders.length-1].stacked_volume})
})
if (data.sell_orders.length > 0)
datasets.push({
label: 'Sell',
steppedLine: 'before',
borderColor: '#e45858',
backgroundColor: '#e87f7f',
data: data.sell_orders.map(o => {
return {
x:parseFloat(o.price),
y:parseFloat(o.stacked_volume)
}
})
})

// draw chart
var chart_ctx = $("#market_depth_chart");
Expand All @@ -324,26 +332,18 @@ <h4 class="font-weight-bold">Trade History</h4>
display: false
},
data: {
labels: buyOrderLabels.concat(sellOrderLabels),
datasets: [
{
label: 'Buy',
steppedLine: 'after',
borderColor: '#88e86b',
backgroundColor: '#a9ea96',
data: buyOrderDataset
},
{
label: 'Sell',
steppedLine: 'before',
borderColor: '#e45858',
backgroundColor: '#e87f7f',
data: sellOrderDataset
}
]
datasets: datasets
},
options: {
steppedLine: true
steppedLine: true,
scales: {
yAxes: [{
stacked: true
}],
xAxes: [{
type: 'linear'
}]
}
}
});

Expand Down