Importing and Exporting Georeferenced ImagesImporting and Exporting Georeferenced ImagesA georeferenced raster image is a regular image file that comes with an additional companion file, known as a world file. A world file associated with the image file must have the same name as the image file and an extension of .bpw, .jgw, .pgw, .tfw, .gfw, or .wld. The world file is used to convert the image coordinates to real-world coordinates. Georeferenced raster images are supported in the Vectorworks Landmark product, for both import and export.
When you import a raster image file, the Vectorworks Landmark product automatically uses the companion world file to import the image as a georeferenced image.
GeoTiff image files can be imported, but no georeferencing information within the file is used.
To import a georeferenced image:
Select File > Document Settings > Units and set the document units to match the units of the image to be imported. For example, if the image’s units are meters, set the Vectorworks document units to meters.
Select File > Import > Import Image File.
The Open dialog box opens. Select the image file for import.
If a world file is associated with the image file, the image is automatically imported, translated, and scaled according to the document units you set in step 1. The current view changes to Fit to Objects, so the imported image is visible.
To import an image without its associated world file scaling and translation, either rename the associated world file, or move it to a different folder.
If the scale is incorrect after import, the document units setting might be wrong. Change the setting and import the file again.
If the current design layer is georeferenced, there is an option to export a worldfile along with an image file of the Vectorworks drawing.
To export a georeferenced image and world file:
Select File > Export > Export Image File.
The Export Image File dialog box opens. Select the export options, including Export Georeferencing File.
Click Save, and then name and save the image file. Along with the image file, the Vectorworks program exports a worldfile that describes the exported image’s location, scale, and rotation in the geographic coordinate system. If multiple georeferenced layers are visible, the worldfile will be written according to the topmost layer. See Exporting an Image File.
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