Also it does not improve the loading time but once the markers are initialized, the zooming and panning is a lot smoother than without virtualization.Īlso be aware that the add/remove of the icon from the DOM might have side effects like a spoiled z-index of elements. The demo also shows the number of marker and shadow DOM elements. I created a small mixin/extension to the L.Marker class which does nothing but removing/adding the icons and shadows from/to the DOM depending on their visibility. MarkerCluster might delay the icon creation leading to problems when you also want to update icon styles for hidden markers. We today encountered a similar issue that with 1000+ markers the map starts to lag.Įnabling markercluster as plugin might be a bit an overhead and also did not provide satisfying results for us. Thank you for Leaflet Vladimir and its contributors, it has been bliss for me so far :)Įven though I might be reviving corpses here with this comment I wanted to share my fiddle with you guys. I realise this has probably been looked at before, and there is a reason why such a feature hasn't been implemented, but I thought I’d ask. Question: How easy would it be to implement a function that would hide markers that are off screen, just like how the tiles are rendered? This would boost the map performance considerably, and be of much help for many people. I would consider using MarkerCluster if it wasn't for the nature of needing to see all of the marker locations at once, and the whole two clicking bug in Android using a WebView (even with jerel’s fix). I fear this will grow significantly when I've placed all the markers. When viewing the map with all the markers displayed on either the laptop or a Galaxy Nexus, I notice a slowdown of the map. 200 markers on the map, and I have covered around 10% of it so far. I am placing custom markers on a game map for loot locations. Bottom lineĪll things considered, ScreenMarker makes it really easy for you to make annotations on your desktop, and can be mastered by beginners and professionals alike.I’m not sure if this is a minor or major feature, and that it has probably already been suggested (with the MarkerCluster plugin being the result) but I will give it a shot. For each tool you can choose from various colors and sizes. There are many tools to use, for example pencil, highligther, line, arrow, rectangle, ellipse, text, eraser and so on. Screen ruler allows you to quickly measure pixels on your screen based on image edge detection. It requires Media Feature Pack for N versions of Windows. An overlay is created to help you draw over any running software, opened window, application, etc., on the desktop screen. It eats up a minimal amount of CPU and memory resources so the overall performance of the computer is not affected. This app contains screenshot and screen recording tool. Tests have shown that ScreenMarker carries out a task quickly and without errors. Other important editing functions worth being mentioned enable you to insert lines, rectangles, and circles with different colors, make use of an eraser for removing unwanted parts from your drawings, as well as clear the workspace and leave a brand-new message.īy default, the main window and drawings remain on top of other programs so you can quickly design and check out the messages. In addition, you are allowed to change its color and size. The application gives you the possibility to draw free-hand designs or create custom messages with the aid of a highlighter. ADVERTISEMENT While you may run dedicated software to make annotations on the screen during presentations or while recording videos of the desktop, it is sometimes sufficient if you use a lightweight. Make annotation on your computer’s screen ScreenMarker is a free portable program for Microsoft Windows devices to annotate directly on the screen using various tools the app provides. In order to leave a message, you just to need to select the target editing tool and draw directly on your desktop. ScreenMarker reveals a clean and intuitive design that embeds all editing features into a single panel. A quick deletion task is sufficient for getting rid of the utility because it does not store entries in your Windows registry. You can gain access to the tool’s features by simply running the executable file (there’s no installation included in the process). This is a portable program which makes it an ideal candidate for being saved on USB flash drives. ScreenMarker is a small software application whose purpose is to help you leave messages on your desktop using a virtual marker.
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