Kml Basics Chpt 5 Overlays

Keyhole Modeling Language – Chpt. 4 – Styles & Icons

Mr. Thomas Cooper

Outdoor Technology

The Walker School

Overlay Types

Ground Screen Photo

Ground Overlay – No Image

Ground Overlay - Code

Setting Lat. & Long.Directions1.Click Overlay2.Choose an image (you can make a “white box” in paint and then overlay it)3.Click on the Location tab4.Choose the coordinates5.Click OK6.Right Click and choose Copy from the menu7.Paste into Notepad8.CTRL-F to search for <LatLonBox>9.Adjust coordinates to fit (really only need hours and minutes)

Ground and Image OverlayKom Firin Dig

DrawOrder: Defines the stacking order for the images in overlapping overlays. Overlays with higher <drawOrder> values are drawn on top of overlays with lower <drawOrder> values

Overlay DrawOrder - Code

# 1

# 2

Rumsey Historical Maps

Found under: Layers

Gallery

Rumsey Historical Mapshttp://www.davidrumsey.com/

Click on links to download maps into GE.

Downloaded Zip Files

1. Zip files can be viewed in the “Places” panel.

2. Maps are loaded into GE by clicking on the icon and then clicking on the link to overlay the map.

USGS Topographic Mapshttp://www.gelib.com/usgs-topographic-maps.html

Topo Map for Marietta

Simple Screen Overlay - Code

Creating Screen Overlays

Activity: Show students how to create basic screen overlays in Photoshop Layers Background Color Text Type and Color

Accepted Overlay File Types

.PNG (portable network graphic, bitmapped)

.TIF (tagged image file format, for lines,

images and graphics) .GIF

(graphics interchange format, best for icons)

Screen Overlay w/ Style

Color and Depth Screen Overlay Alaska Volcano Observatory

http://ge.images.alaska.edu/

Screen Overlay Combined Units - CodeCombining Units to Get Desired Position

Determining Transparency – Part I

Directions1.Click on Image Overlay2.Title the overlay3.Browse for the image you want to make a transparent screen overlay4.Click OK

Determining Transparency – Part II

Directions5. Right click on the overlay and choose COPY from the file menu.6. Open Note Pad7. Chose Paste from the Edit menu.8. Copy the hexidecimal code under the child tag <color>hexcode</color>9. Add it to your screen overlay code.

Expedition Lit TripsScreen Overlay w/ Transparency

Expedition Lit TripsScreen Overlay w/ Transparency - Code