That creates a georeferenced image called terrain 2, which you can rename if you like. If you like what you see, press Register. If you want, press Preview to see a preview. Here is the Register pane with Show Coordinates list style.ĭouble-click into each of the coordinate numbers and make it a round + or - 90 or a + or - 180 as shown in this illustration: Here is the Register pane with exact corner coordinates.Ĭhoose Thin-plate spline as the Method. In the Register pane, press the List style button and choose Show Coordinates. and here is the Register pane with the four control points marked. Here is the map with four control points approximately marked. Mark four control points anywhere nearby (you'll adjust them in a moment) the four "corners" of the Bing map. With the focus on the map window, in the Register pane choose the terrain image as the source of control points. Here is the image with four control points marked. Use Right click and drag to zoom box into the corners to make placement easy, and use the back arrow in the main toolbar to get back to an unzoomed view. Use File - Import to import the terrain image.ĭouble-click the terrain image to open it.Ĭhoose Edit Control points as the cursor mode, and mark control points in the corners of the terrain image. In the New Map dialog click the coordinate system button and choose Latitude / Longitude in the pull down list so the new map is created in Latitude / Longitude. Use File - Create - New Map to create a new map with a Bing streets background. See this video for how to mark control points. I downloaded the hill shaded relief version (visualization) and used that as an example. :-) Here's how to do it in Viewer or Manifold: It turns out to be easy, much quicker than writing this. If I had an example of your fantasy map it would be easier just to do it, providing a few screen shots, step by step, than to speculate. (As a practical matter, it's easier to use control points other than on the very edge of your coordinate system, as in +/- 80°, etc.) For example, if you want to georeference it into Latitude / Longitude, use Latitude / Longitude as the coordinate system of the map window that is your target. If the continents don't match what is on Earth, you can pick points in your map which correspond to (-90°, +90°) north-south and (-180°, +180°) east-west locations, and georeference them to equivalent spots on a "known good" display of Bing, and that will cast the fantasy map into whatever coordinate system you want. Is it supposed to represent an alternative view of Earth, with continents more or less like Earth? If so, the first step is to georeference it using distinctive features (like the tip of the Florida peninsula, etc) that are visible both on your fantasy map and also on a "known good" example for Earth, like a window showing a Bing streets view. When you write "fantasy map" I'm guessing it's a raster image that you drew using Photoshop or whatever. Hard to guess without seeing what you're starting with. I've spent weeks trying to understand how to reproject succesfully in QGIS but have never managed it (I'm trying to import a fantasy DEM with no metadata and "paste" it onto an existing CRS like WGS84). If not, does anyone know about alternatives to G.Projector? I'm using QGIS as well, but I'm quite a beginner and not gonna lie, the CRS stuff drives me crazy. Does anyone have any ideas on how to fix this? I think it might be linked to the java runtime environment, though I have installed the latest version. But nothing works, and there is literally zero info on such a problem with this program online. I've tried changing the compatibility settings, putting an exception in my firewall, applied a 4GB patch to increase available memory, etc. My problem is that when I try to launch the program, it starts-up and prompts the following window where I can select a map file (this is the expected way the program starts up normally):īut when I try to open a map or click on cancel, the whole program crashes without an error message. If you wish to be notified when new versions of G.I need to reproject maps and have been told on here that G.Projector does this very well. G.Projector also understands many SHP shapefiles and can use them for overlays. Get G.ProjectorĪdditional CNO/CNOB overlay files compatible with G.Projector are available from the Panoply software collection of The current version of G.Projector is 3.0.9, released. It requires that your computer have a Java 9 (or later version) runtime environment installed. G.Projector is a cross-platform application that runs on Macintosh, Windows, Linux and other desktop computers. Longitude-latitude gridlines and continental outlines may be drawn on the map, and the resulting image may be saved to disk in GIF, JPEG, PDF, PNG, PS or TIFF form. G.Projector transforms an input map image into any of about 200 global and regional map projections.
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