buildLine() typecast to Number

src/charts/chart.js

@@ -210,6 +210,7 @@ function onSelectedLineToolChanged() {
 export let dragging = false
 function mouseDown() {
     // console.log('mouseDown')
+    // todo push into drawing event queue instead, then set dragging there
     dragging = true
 }
 

src/components/chart/DiagonalBuilder.vue

@@ -94,7 +94,7 @@
 <script setup>
 import {allocationText, applyLinePoints, builderDefaults, useChartOrderStore} from "@/orderbuild.js";
 import {sideColor} from "@/misc.js";
-import {DISTANT_FUTURE, DISTANT_PAST, MAX_FRACTION, newTranche} from "@/blockchain/orderlib.js";
+import {MAX_FRACTION, newTranche} from "@/blockchain/orderlib.js";
 import RungBuilder from "@/components/chart/RungBuilder.vue";
 import {computed, ref} from "vue";
 import {DLine} from "@/charts/shape.js";
@@ -175,7 +175,7 @@ function flattenLine(l) {
 
 function buildLine(f) {
   // console.log('buildLine', f)
-  return f === null ? null : [{time: f[0], price: f[1]}, {time: f[2], price: f[3]}]
+  return f === null ? null : [{time: Number(f[0]), price: Number(f[1])}, {time: Number(f[2]), price: Number(f[3])}]
 }
 
 const _endpoints = ref([flattenLine(props.builder.lineA), flattenLine(props.builder.lineB)])