Importing raster images

Echoview allows you to import raster image files (e.g. aerial photos, graphics/photos of landmarks, side scan data, maps, etc. ) into an EV file.

Note: This page does not cover creating raster images from C_MAP databases,  see About raster images.

Once you have imported a raster image you can:

• add it to a scene, i.e. view the image with 3D objects as part of a scene

• color a surface, i.e. overlay the image on a surface

To import a raster image into Echoview:

1. On the File menu, click Import.

2. In the Files of type list, click:

3. 3D image formats (to list all raster images in the folder), or

4. a specific image type e.g. JPEG (*.jpg, *.jpeg) (to list raster images of a given type).

3. Select the raster image file to import and click Open.

4. If the ESRI World File Interpretation dialog box is displayed

   1. click Ignore file (to ignore the georeferencing data that has been read by Echoview), or

   2. click OK (to accept the georeferencing data that has been read by Echoview).

- OR -

If the GeoTIFF File Interpretation dialog box is displayed:

- click Skip (to ignore the georeferencing data in the file being imported, and enter the appropriate coordinates manually), or

- click OK (to accept the georeferencing data that has been read from the GeoTIFF file).

5. On the Import 3D Raster Image dialog box: enter the latitude (or northing), longitude (or easting), and depth coordinates at which each corner of the raster image should be positioned; select a transparent display color (if any); and click Import.
   Note: If you clicked OK in step 4, the geographic position values have been read in from an ESRI world file or GeoTIFF file.

6. Add the raster image to a scene
   
   -OR-
   
   Color a 3D surface with a raster image

You can change the properties of an imported raster image on the 3D Object Properties dialog box.

See also:

About scenes
Using scenes
About 3D objects
Importing 3D objects