Graphics Programs Reference
In-Depth Information
From the Extent section within this dialog, you can set the model extent
using several approaches:
use entire Model This is the default setting that starts by using the entire
planet as the extent and then sizing the extent down to match the data you've
imported.
define Interactively using A Bounding Box This is a fast and simple way to
set the model extent by simply drawing a rectangle on the screen.
define Interactively using A Polygon This approach is better for long,
winding models like several miles of road. With this approach, you draw a shape
in the model that represents the extent.
define By Coordinates You can use the Minimum and Maximum X and Y
fields to numerically define the model extent.
Load extent from file If you have a data source file that represents the full
extent of your model, you can simply open the file and InfraWorks will calculate
the coordinates based on the file contents. Typically this is an aerial photograph,
but it can be nearly any type of data source.
exercise 2.4: set the Model extent
If you are continuing from the previous exercise, you can skip to step 3. Otherwise,
if you haven't already done so, go to the topic's web page at www.sybex.com/go/
infraworksessentials and download the files for Chapter 2. Unzip the files to
the correct location on your hard drive according to the instructions in the intro-
duction of this topic.
1. If it is not already open, launch InfraWorks.
2. On the Start Page, click Open and browse to C:\InfraWorks
Essentials\Chapter 02\ . Click Ch02 Bimsville Bypass.sqlite
and click Open.
3. Select the Ex_2_4 proposal.
You should see the model as it would appear at the end of Exercise 2.3,
with the terrain and imagery in place.
4. Right-click the ViewCube and select Home.
This will display the full extents of the aerial imagery and terrain
in plan view.
5. On the main toolbar, click Settings and Utilities.
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