MrBlake/mrb-netbox-topology-views
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Improve visualization performance (substantially) (#109)

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* fix: moved image generation to avoid severe performance issues

* fix: moved button finding code before data handling

* fix: fixed leftover invalid variable naming
This commit is contained in:
Alexander Ryazanov
2022-05-10 09:21:22 +02:00
committed by GitHub
parent de92627176
commit b5991a5f50
4 changed files with 16 additions and 9 deletions
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netbox_topology_views/static_dev/js/home.js
+13 -6
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@@ -78,13 +78,24 @@ function iniPlotboxIndex() {
csrftoken = getCookie('csrftoken');
container = document.getElementById('visgraph');
htmlElement = document.getElementsByTagName("html")[0];
handleLoadData();
downloadButton = document.getElementById('btnDownloadImage');
handleLoadData();
btnFullView = document.getElementById('btnFullView');
coord_save_checkbox = document.getElementById('id_save_coords');
}, false);
}
function performGraphDownload() {
var tempDownloadLink = document.createElement('a');
var generatedImageUrl = canvas.toDataURL(MIME_TYPE);
tempDownloadLink.href = generatedImageUrl;
tempDownloadLink.download = "topology";
document.body.appendChild(tempDownloadLink);
tempDownloadLink.click();
document.body.removeChild(tempDownloadLink);
}
function handleLoadData() {
if (topology_data !== null) {
@@ -103,11 +114,7 @@ function handleLoadData() {
graph.fit();
canvas = document.getElementById('visgraph').getElementsByTagName('canvas')[0];
graph.on('afterDrawing', function () {
var image = canvas.toDataURL(MIME_TYPE);
downloadButton.href = image;
downloadButton.download = "topology";
});
downloadButton.onclick = function(e) { performGraphDownload(); return false; };
graph.on("dragEnd", function (params) {
dragged = this.getPositions(params.nodes);