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save a few cycles when table is hidden

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This commit is contained in:
Matthias Wirth
2019-10-27 12:14:28 +01:00
parent 43b3a54a69
commit faf927caa2
1 changed files with 30 additions and 22 deletions
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52
html/script.js
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@@ -1626,6 +1626,7 @@ function refreshTableInfo() {
const topRight = ol.proj.toLonLat([currExtent[2], currExtent[3]]);
//console.log([bottomLeft[0], topRight[0]]);
//console.log([bottomLeft[1], topRight[1]]);
const sidebarVisible = $("#sidebar_container").is(":visible");
//console.time("updateCells");
for (var i = 0; i < PlanesOrdered.length; ++i) {
@@ -1637,28 +1638,32 @@ function refreshTableInfo() {
const proj = tableplane.position ? ol.proj.fromLonLat(tableplane.position) : null;
//const inView = proj ? ol.extent.containsCoordinate(currExtent, proj) : false;
var inView = false;
if (pos && currExtent[2]-currExtent[0] > 40075016) {
// all longtitudes in view, only check latitude
inView = (
pos[1] > bottomLeft[1]
&& pos[1] < topRight[1]
)
} else if (pos && bottomLeft[0] < topRight[0]) {
// no wraparound: view not crossing 179 to -180 transition line
inView = (
pos[0] > bottomLeft[0]
&& pos[0] < topRight[0]
&& pos[1] > bottomLeft[1]
&& pos[1] < topRight[1]
)
} else if (pos && bottomLeft[0] > topRight[0]) {
// wraparound: view crossing 179 to -180 transition line
inView = (
(pos[0] > bottomLeft[0]
|| pos[0] < topRight[0])
&& pos[1] > bottomLeft[1]
&& pos[1] < topRight[1]
)
if (tableInView && sidebarVisible) {
if (pos && currExtent[2]-currExtent[0] > 40075016) {
// all longtitudes in view, only check latitude
inView = (
pos[1] > bottomLeft[1]
&& pos[1] < topRight[1]
)
} else if (pos && bottomLeft[0] < topRight[0]) {
// no wraparound: view not crossing 179 to -180 transition line
inView = (
pos[0] > bottomLeft[0]
&& pos[0] < topRight[0]
&& pos[1] > bottomLeft[1]
&& pos[1] < topRight[1]
)
} else if (pos && bottomLeft[0] > topRight[0]) {
// wraparound: view crossing 179 to -180 transition line
inView = (
(pos[0] > bottomLeft[0]
|| pos[0] < topRight[0])
&& pos[1] > bottomLeft[1]
&& pos[1] < topRight[1]
)
}
} else {
inView = true;
}
@@ -1675,6 +1680,9 @@ function refreshTableInfo() {
++TrackedAircraftPositions;
}
if (!mapIsVisible)
continue
if (tableplane.dataSource == "adsb") {
classes += " vPosition";
} else {