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SketchUp: How to Scaling imported raster images in LayOut

If you’ve ever inserted an aerial photo or an old scanned site plan into LayOut, you might have wanted to give it a specific scale on the page. My favorite technique for doing this uses the Clipping Mask feature.

Step 1
Choose File > Insert… to insert a raster image into your LayOut document. Find a known measurement somewhere on your image. This known measurement can be anything: a scale bar (if you’re lucky); the length of a fence or sidewalk; or even the roofline of a building. It’s important that you find something that’s relatively large and that whose length you already know. You’ll use this portion of the image as a “benchmark” to size the entire image to a specific scale.

In my example, a scale bar was included in my image; this makes it pretty easy to use as a benchmark.

Step 2
Figure out what scale you’d like to give your inserted image. Keep in mind how the scale will impact the size of the image and how that image will fit on your page.

For this image, I’m going to use 1” = 400’ (1:48) scale. This should fit nicely on an 8.5 x 11 sheet of paper.

Step 3
Create a rectangle around the “benchmark” portion of your image. Use the Rectangle tool to do this, and make sure it has no fill (so that you can see through it.)

This scale bar only goes to 300’, so I’m going to use the 0’ – 200’ as my benchmark. 200 is half of 400, which makes the mental math easier to do.

Step 4
Select both your rectangle and your image and choose Edit > Create Clipping Mask. Select the resulting crop and give it a visible stroke so you can see its boundary.

I color the clipping mask to make its border easier to see.

Step 5
Somewhere on your page, use the Line tool to draw a line whose length corresponds to the scale of the image you’re working on.

To draw a line, click to start drawing, move your cursor in the direction you want the line to go, type the length you want and hit Enter.

Since I want a scale of 1” = 400’, and my “benchmark” is 200’ feet long, I draw a horizontal line which is one-half inch long (1 inch divided by 2).

Step 6
Move your benchmark, snapping its lower-left corner to the left endpoint of your line. Be sure that Object Snap (Arrange > Object Snap) is turned on, or snapping won’t work properly.

I snap my benchmark to the left endpoint of my line.

Step 7
Scale your benchmark so that it’s the same length as the line. With your benchmark selected, hold down the Shift key and scale it until it snaps to the right endpoint of your line. As long as you hold down Shift, your selection should scale proportionately.

I scale my benchmark to the right until it aligns and snaps to the end of my line.

Step 8
Select the benchmark and choose Edit > Release Clipping Mask. Delete the rectangle from Step 3, and the line you drew in Step 5, and you’re done. Voilà! You’ve set your image to a specific scale.

Image set at 1” = 400’ (1:48) scale and positioned on a letter-sized landscape sheet.

This may seem like a lot of steps but it’s actually pretty simple. Have a look at the following silent movie to see how it’s done.

sketchupdate.blogspot.com

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The Thailand Floods

As Google often does during disasters (such as the Gulf Oil Spill and the Japan Earthquake, Google has set up a Crisis Response page to help provide information for those trying to assist with the flooding in Thailand.

The flooding has become quite devastating and more widespread than most people realize. From Google’s page:

Thailand is currently facing its worst flooding in 50 years. Flood waters have swamped more than two-thirds of the country, submerging rice fields and shutting down hundreds of factories while over 900,000 families and businesses have been impacted and hundreds of lives have been tragically lost. National relief efforts are now focused on providing essential food, clean water and shelter to displaced people and restoring damaged infrastructure to the Kingdom of Smiles.

You can use the map on their page, or download various elements as KML files to be able to browse them in Google Earth. For example, here is the “Flood affected areas across Thailand” map (KML), which gives you a quick glance at the hardest hit areas.

For fresh satellite imagery of the area, you can use the imagery released by the NASA Earth Observatory a few days ago. You can view the image on their site.

Google Maps Mania

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Steve Jobs in Google Earth

Steve Jobs undoubtedly had an effect on almost all of the technology that we use today. While he had relatively little impact on products like Google Earth (because Apple never created competing technology to help push things forward), his impact reached all of us.

That said, geospatial technologies can be used to help honor people in a unique way, such as the timeline of Louis Zamperini’s life.

Similarly, Google Maps Mania recently posted a timeline of Steve Jobs’ life. Steven Ho, who recently built the Trip View Bowl visualization, has built a nice tribute to Jobs in Google Earth. It turns Earth into a giant apple, with a silhouette of Jobs’ face on the side.

It’s easily one of the largest 3D models we’ve seen, similar to the pumpkin or the giant mustached smiley face we show you for movember each year. The giant apple is part of a short tour that he created, which also includes music and a quote about Steve.

To see it for yourself, you can view it with the Google Earth Plug-in.

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The great Football resources in Google Earth

With NFL and NCAA football both in high gear, we thought we’d take a look at various football-related resources in Google Earth.

A few years back, Google showed off all of the 245 NCAA football stadiums, many of which are in 3D. You can explore them yourself using this KML file.

Another way to see them is by viewing some of the stadium collections on EarthSwoop, which allow you to fly from stadium to stadium via the Google Earth Plug-in: ACC, Big Ten, Big 12, PAC 10, SEC and the entire NFL.

Speaking of the NFL, it’s worth checking out Cowboys Stadium in Dallas. It hosted the Super Bowl earlier this year, and it’s an amazing model. If you’re looking to play some football, you can check out the Google Earth-based football game that I created a few years ago. I’m sure it could be done better with the Google Earth Plug-in now, but it’s still pretty fun.

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The earthquake tsunami changed the Ice

When the earthquake (and subsequent tsunami) struck Japan earlier this year, we provided as much data as possible about the disaster. What many people didn’t realize was that the tsunami continued to travel across the ocean, eventually striking Antarctica with a great deal of force. This caused some flexing and breaking of the Sulzberger Ice Shelf, which resulted in two large icebergs being released, reminicient of the chunk of the Wilkins Ice Shelf that broke off a few years ago. Combined, the icebergs cover an area of 125 square kilometers, or more than twice the size of New York’s Manhattan Island!

You can download the KMZ file here.

If you turn on the “Borders and Labels” layer in Google Earth, you’ll see the yellow outlines match up quite well with the dark patches in the overlay, as seen here: