Tensional stress - elongates or will pull apart rocks. Compressional - shortens rocks horizontally and thickens them vertically. Differentiate stress from strain and brittle from ductile deformation. (shadows are set at october 8, 4:20 PM - you can see them on the hill across the bay)ĮDIT 2: I just looked at the tools in more detail and there is a LOOK AROUND TOOL which allows you to click anywhere on the surface and look around as well as a FIELD OF VIEW tool that does just what it says. Describe the three types of differential stress and identify the tectonic setting most commonly associated with each. If you want to take this a step further, you could use a 3D GIS and high resolution terrain models/aerial imagery but this will not longer be free nor easy.ĮDIT: Here is a quick 30 degree angle of view model at one of my locations. You can add many rulers by pressing the button again. Or stay here and press Add A Ruler button to add a ruler. There are a lot of how to videos on YouTube so finding out how to work with the various tools is easy. Here is how to measure distances on a Google Map with simply 3 steps, follow these instructions and use the free online tool in this page: Choose a new location and press Go there. You can also publish you model for viewing in Google maps/earth and it will display in the correct location. To start measuring, select the ruler icon at the bottom of the left-hand sidebar. Select the Ruler tool and set it to Path. The best part is that your locations are geographically referenced so modelling with shadows is geographically accurate. Go to the website and select Launch Earth. In this video, we will see, How to Calculate Area and Distance in Google Earth Pro.The advanced measuring tools in Google Earth Pro make it easy to plan, mea. Contours aside, in the begging the video shows how to create a 3D terrain with google earth imagery draped over it in less than 30 seconds. Take a look at this video which explains how to create contours in SketchUp from google earth terrain. Many people can be discouraged just by this being a 3D modelling environment but I can assure you that although you can create very complex models it is very easy to use. You can easily model buildings into the terrain by tracing building footprints in the satellite imagery and very easily extruding them to any height - this is particularly useful if you want to be able to analyze how shadows are cast from any buildings that might exist in a particular location. ![]() ![]() In addition, SketchUp can also add shadows for any specific geographical location and enables you to toggle the shadows by date of year and time of day. In fact you can easily draw a 3D cone as well that will enable you to analyze the angle of view in 3D. You can then use the protractor tool to measure and draw your line of sight and an angle of view. The ruler tool in Google Earth shows ‘heading’, so once you know your magnetic declination it is pretty easy to work out which way your compass will point in Google Earth. Google Sketchup 8 (a free 3D modelling software) enables users (being a Google product) to "legally" add Google maps imagery and terrain to 3D models.
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