M3

One tool I learned in this lab that I found very useful was using the elevation tab in properties to input a cartographic offset to manipulate the visualization of specific features that may be obstructed or out of sight. This allows the creator to focus on certain features or data so that the viewer can more easily see what is being shown. It is pretty simple, but without it one may be lost trying to fixate the viewer on the intended features. Another useful tip I learned was to use "TarIsVis =" and "Length 3D is" expressions during line of sight analysis. These expression will tell you if the target is visible or not (0=not vis, 1=vis) and give you information about distances from the target. I also learned how to use viewshed anaylsis to model the range of visibility in an area, and how to alter that range. You do this by running the viewshed tool to pick up the features you are modeling to create the viewshed. Then you use raster functions to calculate light coverage from these features using programmed math equations. If the visibility calculated needs to be changed, you would alter the dimensions in the attribute table. Finally, the likely most resourceful tool I learned how to use was when converting 2D to 3D. This can be a very necessary skill, but is somewhat complicated and requires a significant amount of data to be input. First, you run the Layer 3D to Feature Class tool with the 2D features you want to input. Next you would input data that will give the model a spatial basis to go off of to give these features their proper Z values for height. This does not have many steps on the surface, but gathering the right data and inputting it is time consuming.