WEBVTT

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The letters "USGS" and the words "Science for a Changing World" appear in green then fade to black.

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ModelMuse allows you to import images into your model.  

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You can use them to help place objects at the correct locations. 

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To import an image, select “File|Import|Image…"

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There is a link in the help to a good site for U.S. aerial photos.

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Enter the address here.

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There are actually several different images we can get.

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Urban Areas is an aerial photo from 2002.

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There is an earlier photo from 1991 and there is also a topo map.

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We will look at the aerial photo from 2002.

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That is a bit more zoomed in than I want so I'll zoom out a bit.

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Right here is the USGS headquarter.

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I'm going to download this image and import it into ModelMuse.

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I prefer a larger image so I'll select a larger size.

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Click Download.

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All the separate images will be combined into one.

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Now I right-click and select “Save Image As…”

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I save it as Urban.jpg.

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I also want to save the World File which tells where the image is located. 

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I right-click on that and select "Save Link Target As."

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I save it was the same name as the image but with the extension .jpgw instead of .jpg.

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Back in ModelMuse, I click the “Select image” button and select the image.

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The world file is read in automatically so the coordinates corresponding to 

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two opposite corners of the image are calculated automatically.  

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That's all I need to tell it where the image is.

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I believe these coordinates are in UTM (Universal Transverse Mercator) coordinate system.

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If there was no World File, I could have typed in coordinates 

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or clicked on the image to select points with know locations.

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I click OK and there is the image in ModelMuse.

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I zoom in.

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There is the USGS headquarters.

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The letters "USGS" and the words "Science for a Changing World" appear in green.