![]() This creates a standard, single-image Image Overlay KML. #Google maps colorize full#Scale: this will import the full image but will scale it down to a reasonable size, so you will loose resolution.It creates a standard, single-image Image Overlay KML. This is good for testing what the full res looks like. Crop: this will let you import just a part of the image, but at full resolution.Now, when you import, Earth will detect the image size, and if it's too big, it will offer some options: You can control the image size when exporting from QGIS, though be aware that reducing from the defaults may make your image in Earth lower resolution than the original data. ![]() So if you want to make sure that anyone can view your KML/KMZ, then you'll want to limit the image size to 2048 max dimension, though for most modern machines, 4096 should be fine. Older/weaker machines may only support upto 2048x2048 pixel images. Most machines will support around 4096x4096 or 8192x8192 pixels max, though some will support higher. To see the max size in Earth Pro, go to Help menu > About Google Earth, and look for "Maximum Texture Size". Google Earth can only overlay images up to a certain size, depending on the graphics capacity of your computer. Notes on image sizes, superoverlays, etc. I almost always set my project and re-project my data to EPSG:4326 to avoid unexpected projection issues. But if you see any projection or positioning issues in Earth, then it's best to do all this with both the dataset and project coordinate reference systems set to WGS84 (EPSG:4326). Note on projections - It shouldn't matter what projection your QGIS Project and data layer use, so long as you export to "EPSG:4326 - WGS 84".
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