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initial chart checkin

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Tim
2024-01-29 01:25:48 -04:00
parent ee021c9590
commit 29fcad1059
23 changed files with 490 additions and 42 deletions
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19
src/orderbuild.js
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@@ -16,11 +16,11 @@ export function applyLimit(tranche, price=null, isMinimum=null) {
}
function computeInterceptSlope(date0, price0, date1, price1) {
if (!date0 || !price0 && price0 !== 0 || !date1 || !price1 && price1 !== 0)
throw Error(`invalid line points data ${date0} ${price0} ${date1} ${price1}`)
const t0 = timestamp(date0);
const t1 = timestamp(date1);
function computeInterceptSlope(time0, price0, time1, price1) {
if (!time0 || !price0 && price0 !== 0 || !time1 || !price1 && price1 !== 0)
throw Error(`invalid line points data ${time0} ${price0} ${time1} ${price1}`)
const t0 = time0
const t1 = time1
if (t0 === t1)
throw Error("line points' times must be different")
const slope = (price1 - price0) / (t1 - t0)
@@ -29,21 +29,22 @@ function computeInterceptSlope(date0, price0, date1, price1) {
}
export function linePointsValue(date0, price0, date1, price1, unixTime=null) {
export function linePointsValue(time0, price0, time1, price1, unixTime=null) {
if(unixTime===null)
unixTime = timestamp()
try {
const [intercept, slope] = computeInterceptSlope(date0, price0, date1, price1)
const [intercept, slope] = computeInterceptSlope(time0, price0, time1, price1)
return intercept + unixTime * slope
}
catch (e) {
console.log('error computing line',e)
return null
}
}
export function applyLinePoints(tranche, date0, price0, date1, price1, isMinimum=null) {
const [intercept, slope] = computeInterceptSlope(date0, price0, date1, price1);
export function applyLinePoints(tranche, time0, price0, time1, price1, isMinimum=null) {
const [intercept, slope] = computeInterceptSlope(time0, price0, time1, price1);
applyLine(tranche, intercept, slope, isMinimum)
}