You finished your web map by adding and styling demographic data to show census tracts with a high percentage of households without vehicles. Next, you'll use your map to create a web app.
A web app is a customized user interface that enhances your map's appearance, adds or removes functionality, and helps you integrate the map with other media. You can choose from a variety of configurable templates, depending on how you want to display your map. You simply want to showcase your map to the public, so you'll configure a basic template with only a few standard navigation tools.
The Instant Apps gallery appears. You want your map to be the primary focus of your app. You also want to show the legend, your bookmarks, and a map description. For these purposes, you'll use the Minimalist app template. The Create App - Minimalist window appears.
Before you configure the app, you must specify its title, tags, and summary. By default, the app has the same information as the web map used to create it. You'll change the title to better represent what you intend the map to emphasize and leave the other parameters unchanged. Next, you'll change elements of the app's presentation to better communicate the map's story to users. There are four tabs of configurable parameters available for Express Setup.
Since you've already selected the Houston map, you'll skip to the second step. The About pane appears. This will ensure that when users open the app, the Legend pane will be automatically visible. The Interactivity pane appears. On this pane, you can set different user interactive features, like search.
Since you have set two bookmarks showing different zoom extents of the city, you will not need the Search option. The app will automatically open the map to the text of your area of interest.
Since you created bookmarks, you will want to enable viewers to choose and view the bookmarks you created. The setting to enable the Bookmarks widget is now available. The Bookmark widget adds to the app on the right side of the map.
Now you can return to the Express setup mode. The final step of app configuration is choosing the theme and layout. In this pane, you can select different color options and places where you want the widgets to show. By default, the theme of the application is Light , which matches your basemap.
You'll make one change to the widgets, though. The Bookmarks widget is currently in the opposite corner from the zoom control widgets.
You'll move it to the top left next to the Home and Zoom controls widgets so that users can more easily find the widget. On the app, the Bookmarks widget is now shown under the Zoom controls and Home widgets. When you're happy with your app configuration, you'll publish it so that you can share it. A success window confirms that the app is published. Your app is not public yet, so it is replaced by the Share window.
The app's item details page opens. This page provides information about your content. First, you'll share the app, then you'll edit the metadata to help people using the app understand what they're looking at and how to use it. The Share window appears. There are multiple ways to share content to different groups of viewers.
For example, if you choose to share to your organization, only people with accounts in that same organization will be able to access your content. You want this app to be available to everyone, so you'll share it publicly. Now the app is configured and shared. As a final step, you'll add information about the app to the item details page.
Next, you'll edit additional information on the item details page to provide meaningful information about the app for your viewers. This information is called metadata, and it's important for all maps and apps to have it. The Item Information bar indicates your progress toward high-quality item information and indicates the most important improvement you can make. The Edit Summary box activates. This web app highlights areas in need of assistance during a hurricane evacuation in Houston, Texas.
You have added the summary text. The thumbnail image is currently a default app icon. Next, you'll change the thumbnail to an image that reflects the area featured in your app. The Edit Description box actives. A description should be even more detailed and in-depth than a summary. It should explain not only the app's purpose and what kind of data it shows, but also information about how to use the app and how it was created.
This app shows evacuation routes and demographic data by census tract for Houston, Texas. The darker blue tracts have a higher percentage of households without a vehicle. This pattern helps answer the question: Where in Houston should we provide evacuation assistance during a hurricane?
Use the Layers and Legend tools to learn more about the data shown in the map. Click individual census tracts to see pop-up information, including the percentage of households without a vehicle. The map in this app contains a Living Atlas layer of Houston evacuation routes and a layer of Houston demographic data. The demographic layer is styled using an Arcade expression that calculates the percentage of households without a vehicle. This information is also provided in pop-ups. The Item Information progress bar indicates that you are closer to completing the item information for the app.
A complete list of suggested improvements is displayed. You have completed all but one: Add terms of use. The Edit Terms of Use box becomes active. Your data comes from local and federal governmental authorities and is public domain, so there are no terms of use. The item details page is complete. In this lesson, you created a map with a layer of hurricane evacuation routes in Houston, Texas. You added demographic data by census tract and used smart mapping to emphasize areas with limited vehicle ownership.
The spatial patterns revealed in your map helped you determine where evacuation assistance is most needed in the event of a hurricane. Finally, you shared your findings by turning your map into an interactive web app. What's next? If you'd like to take a more detailed look at web apps, try Oso Mudslide - Before and After.
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A geographic information system GIS is a way to display and analyze data using maps. A Singapore tourism agency wants to create a brochure that tells visitors the closest rail station to popular destinations in the downtown area.
The brochure will combine a map with textual information and be sold at kiosks around the city. You'll help the agency by mapping the tourist sites, analyzing how close they are to rail stations, and changing the map's appearance so that it is visually appealing.
If you're using a different version of ArcGIS Pro , you may encounter different functionality and results. Before you begin your map, you'll create a project. If you've created a project before, you'll see a list of recent projects.
The Create a New Project window appears. By default, projects are saved in a new folder. To save them in an existing folder, uncheck Create a new folder for this project and browse to the folder. Your default location may differ from the example image. The project is created with a map showing the world. For now, the only layer is the basemap, which provides reference information such as national boundaries and water bodies. Depending on your ArcGIS organization's settings, your map may have a different default extent and basemap, so it may look different than the example image.
On either side of the map are panes. The Contents pane lists the layers on the map and the Catalog pane lists all files associated with the project.
Above the map is the ribbon. The ribbon contains several tabs, each with multiple buttons. These buttons may affect map navigation, change the map's appearance, or open windows or panes with more functionality. You can rearrange panes by dragging their title and docking them in new locations.
You can also resize panes by dragging their edges. To return to the default pane arrangement, click the View tab. Throughout this lesson, feel free to arrange the panes and views.
Your area of interest is the island city-state of Singapore, so you'll navigate to it. The Locate pane appears. Using this pane, you can search for and navigate to geographic locations, including countries, cities, and street addresses. The map automatically navigates to the first result: the country of Singapore. The locations of the search results are displayed on the map as circles. Singapore, one of the world's smallest nations, is home to 5. The modern city contains numerous historical and cultural landmarks, entertainment venues, and ecological sites.
It is one of the most visited cities in the world and tourism is a major industry. The basemap shows Singapore and some basic geographic information, such as roads and lakes. However, it doesn't show tourist destinations or rail stations. To create a map that is useful to tourists, you'll add this data to the map.
The Add Data window appears. You can add data from several sources, including your project's folder Project , the website of your ArcGIS account Portal , or your computer Computer. You'll add the data you need from there. To find the data, you'll search for it by name and owner. Extract the downloaded folder to a location on your computer. In the Add Data window, browse to the location of the extracted folder.
You may need to click the Refresh button in the Add Data window to see the folder. The layers are also listed in the Contents pane. The green points are tourist attractions, the white lines are rail lines, and the black polygons are rail stations. Layers that are composed of points, lines, or polygons are called feature layers. The majority of tourist attractions are grouped in the south-central part of the island.
This area is Singapore's downtown, also called the Central Business District. The tourism agency wants their brochure to focus on this area, so you'll zoom to it. Another way to zoom to an area is to select the Explore tool and press the Shift key while drawing a box on the map where you want to zoom.
Alternatively, right-click and drag the mouse on the map to zoom in or out. Use the navigation method you prefer. At this extent, the rail stations are displayed in more detail. Depending on the size of your monitor, more information about streets and buildings may be displayed. This map extent will be the one you use for the rest of the project. It'll be convenient to quickly return to this extent if needed, so you'll create a navigation shortcut called a bookmark.
The bookmark is created. You'll use this bookmark later in the lesson. While navigating the map, you may have noticed that some of the data layers are difficult to see. The rail lines, for instance, are white and often blend into the other information on the map. The information about streets, water bodies, and buildings comes from the basemap. A basemap provides reference information that contextualizes your data.
Depending on your ArcGIS organization's settings, you may have a different default basemap. You'll change the basemap to one that emphasizes your data.
A darker basemap will make the white rail lines appear more clearly. With this basemap, the rail lines stand out more. Unlike the Topographic basemap, this basemap contains two layers.
One of these layers, Dark Gray Reference , contains text that labels some areas. This text isn't necessary for your map's purpose and may obscure some features, so you'll turn it off.
The layer no longer appears on your map. To make the reference information reappear, click the check box again. The tourist attractions are displayed on the map as small points that don't stand out well.
Because the attractions are meant to be a focal point of the map, you'll change the way they appear. The Symbology pane appears. Symbology defines a layer's appearance. You can choose from a gallery of default symbols or customize a symbol. The symbols for tourist attractions change to the chosen symbol. The tear pin symbol helps convey that the tourist attractions are places of interest.
You can make the symbols stand out more by adding an outline and increasing the symbol size. To see a color's name in the color picker, point to it. Now the tourist attractions stand out more clearly, without obscuring other map features. If your ArcGIS account uses an ArcGIS Enterprise portal and you downloaded the layer data, the rail lines and rail stations may have different symbols than those shown in the example images.
To change the rail lines symbol to match the example images, click its symbol to open the Symbology pane. To change the rail stations symbol, open its Symbology pane. Click Apply. The tourism agency wants its brochure to indicate the closest rail station to each tourist attraction. Measuring the distance between each tourist attraction and rail station one by one would take a lot of time, so you'll automate the process by running a geoprocessing tool.
A geoprocessing tool performs an operation on a dataset. In ArcGIS Pro , there are hundreds of geoprocessing tools, encompassing a wide variety of operations. You'll use the Spatial Join tool, which combines information from two feature classes based on their spatial relationship.
You'll use this tool to determine the closest rail station to each tourist attraction. The Geoprocessing pane appears. Another way to open the Spatial Join tool is from the Analysis Gallery. On the Analysis tab, in the Tools group, expand the Analysis Gallery.
You could digitize the proposed road as part of one of your roads layers, but that would alter reliable data with a feature representing a road that does not actually exist. Instead, you'll create a new feature class. The New Feature Class dialog box opens. Next, you'll choose the feature class's coordinate system. A coordinate system defines positions and measurement values of geographic features on a map. You'll learn more about coordinate systems later in the project. For now, you'll use the coordinate system used by the layers already on your map, which you can quickly choose from the list.
Tip: You can check which layers use which projection by clicking the plus sign next to the projection's name.
XY tolerance defines how close two coordinates must be to be considered the same coordinate. The default value is fine.
The next parameter is for database storage configuration. You don't have to worry about this parameter. Lastly, you'll add the attribute fields. Although you can manually create fields by entering names and data types, you can also import attributes from an existing feature class.
The list of fields populates with the fields of the Roads feature class: Name and Status. It currently has no features. To add a feature of the proposed road, you'll use the image as a reference and trace the unofficial roads that coincide with the road's location. To start digitizing a feature, you'll begin an editing session. An editing session begins and the Editor toolbar is turned on, showing several options for editing.
The Edit tool is active by default. The Edit tool selects or moves features from any editable layer. This tool is useful for modifying existing features, but doesn't create new features. Tip: Any toolbar can be moved by dragging it around the ArcMap window. If moved to the top of the window, the toolbar will dock. The pointer changes to crosshairs, allowing you to draw features. Before you begin, you'll explore some drawing behavior.
The pointer is pulled toward features. This behavior is called snapping. Snapping makes it easy to connect new features to other features. However, it makes it difficult to create features that are close to other features but don't touch exactly. Because the planned road connects to the Official Roads , Roads , and Cities layers, snapping will be useful. However, you'll turn off other feature layers so you don't accidentally snap to them while digitizing.
Note: If snapping is not enabled by default, turn on the Snapping toolbar by clicking Customize , pointing to Toolbars , and choosing Snapping. On the Snapping toolbar, click Snapping and choose Use Snapping. The Trace tool traces an existing feature, making it useful for the portions of the proposed road that overlap sections of existing roads. If you use the Zoom In tool, you'll have to reselect both the Planned Road feature template and the Trace tool after you zoom in.
Alternatively, use keyboard shortcuts to make certain tools active without changing the selected tool on the toolbar. Hold the C key to make the Pan tool active. While holding the C key, hold the Shift key to make the Zoom In tool active, allowing you to draw a box on the map to zoom in.
When you release the C and Shift keys, the Trace tool will become active again. Once you click the endpoint, the pointer immediately starts tracing any existing features you hover over. If you reach the edge of the map extent, hold the C key to make the Pan tool active, pan to the right, and release the C key to resume tracing. After you click, a feature with the current symbology of the Planned Road layer appears on the map.
Green squares on the line indicate vertices and the red square indicates the endpoint. The next section of the road doesn't coincide with existing features. You'll draw the next section with the Straight Segment tool. The pointer changes to crosshairs and is connected to the endpoint by a line. If the cursor snaps to the nearby unofficial road when you place your vertex, temporarily disable snapping by holding the spacebar.
A new segment is added and the endpoint the red square moves to the location you clicked. For the final section of the proposed road, you'll trace another existing feature. The proposed road feature is selected and the vertices disappear. If you're satisfied with your road, you'll save your edits. Until you save your edits, all of your edits can be undone by ending the editing session or exiting ArcMap. Even if you save the map document, your edits will remain unsaved.
Tip: If you don't like how your road turned out, you can either discard the edits by ending the editing session and redoing the drawing, or edit individual vertices in the road with the Edit Vertices tool on the Editor toolbar. Don't stop editing yet. You'll make more edits in the next section. The proposed road has been digitized, but it uses the default symbology of the Planned Road layer, which is thin and difficult to see on the map.
Also, while you added attribute fields when you created the feature class, those fields have no attribute data. You'll give the proposed road symbology similar to that of the existing roads, but it should also be distinct and attention-grabbing. You'll import the symbology from the Official Roads layer and alter it to make it stand out. The orange line appears on the Symbol button. The only change you'll make to the symbol is its color. Next, you'll add attribute data to the proposed road feature.
The digitized feature is the layer's only feature. Neither field has attribute data. If you are in an editing session, you can directly edit attribute tables. You should be in an editing session from the previous section. If not, start an editing session using the Editor toolbar. The proposed road would have extended the highway to the western part of the state.
Next, you'll estimate the deforestation the road would have caused. In the previous lesson, you determined the percentage of land that was deforested 5. To find a total area not a percentage of potential deforestation around the proposed road, you'll buffer the Planned Road layer to the same 5.
You'll also remove areas of existing deforestation so they won't be included in your total. If the Deforested Area layer is difficult to see on top of the buffer, change the buffer's symbology to a darker color.
There are some areas where deforestation has already occurred. You don't want to include already deforested areas in your analysis. You'll remove existing deforestation from the buffer with the Erase tool.
The Erase tool subtracts parts of one layer that overlap another layer. The Erase tool is not one of the tools that can be accessed from the Geoprocessing menu. Instead, you'll search for the tool.
The Search window opens. Note: If you haven't used the Search window before, it will open on top of the Catalog. You can return to the Catalog by closing the Search window or using the tabs at the bottom of the window. Like the Catalog and Create Features windows, the Search window can be moved and docked anywhere in the ArcMap application window. The Erase dialog box opens. The tool will take the Input Features and subtract from them areas that overlap with the Erase Features.
In this case, it will remove areas of deforestation from the buffer. To find out how much of this area would have been deforested, you'll multiply the area by the percentage value you obtained earlier. You'll add a new field to estimate the deforestation of the buffer around the proposed road. You'll then multiply the total area by the percentage value you just copied. You'll also convert the area from square meters to square kilometers so the value is appropriate for what it measures.
The field is added to the attribute table. Next, you'll use the Field Calculator to find the estimated deforested area in square kilometers. One kilometer equals 1, meters, which means that one square kilometer equals 1 million meters.
Your value is still expressed as a percentage, so you'll divide the percentage by According to this analysis, approximately square kilometers were saved by the cancelling of the proposed road. Your value may be slightly different. Although your value may vary from the example, the overall story remains unchanged.
If the proposed road had been constructed, several hundred square kilometers of land would have become deforested, much of that land in untouched rainforest. In addition to the deforestation that would occur directly as a result of the road, even more natural forest may be lost due to unofficial roads branching from the road or the conversion of surrounding land to private holdings.
This analysis predicted the impact of a road that was never built. The process used for the analysis could be adapted to other locations in the Amazon in order to predict the impact of future roads. Not all proposed roads end up being prohibited, so understanding the deforestation a road may cause can be a key piece of information for balancing economic and ecologic concerns. Additional questions could guide an impact analysis.
For instance, is there a difference between the deforestation caused by official and unofficial roads? Are there additional factors, such as terrain and the protection status of the land, that affect deforestation? How does changing the sample area of existing roads affect the ultimate outcome of the analysis? You can use ArcMap to explore these questions on your own. You've predicted the amount of deforestation caused by a proposed road. Next, you'll present your findings with a print map that can be saved and shared.
Now that you've estimated the amount of deforested area that would have occurred if a proposed road had been built, you'll present your results as part of a finished map layout that you can print or export to a shareable file format. Because you intend to share your finished map with others, it should be presentable and clear. Finally, you'll print or export your map to share your findings with the world.
So far, you've worked in Data View , a map view that allows you to best explore the data layers on your map. To prepare your print map, you'll switch to Layout View , which allows you to see the arrangement of map elements such as legends, scale bars, or titles.
Before you switch views, you'll turn on certain layers so that important reference information is visible on your map. The bright yellow color draws attention to this key part of the map. Next, you'll switch to Layout View and design your map for the printed page. You can also switch between Data View and Layout View by clicking the buttons at the lower left of the map. The map changes to include a frame and rulers that show the dimensions of the layout.
The dimensions are in the default measurement units of your software and may be different than those in the following images. The default layout isn't very appealing. For starters, the layout is vertical, although the extent of your data is horizontal. Furthermore, the layout has no map elements other than some text in the lower right corner that provides the sources for the basemap.
You can navigate the layout using the tools on the Layout toolbar, which opened when you switched to Layout View. Most of the tools on the Layout toolbar are navigation tools with similar functions as the navigation tools with which you are already familiar, such as Zoom Out and Pan. You can still use the tools on the Tools toolbar to navigate the map within the layout. The Select Template dialog box opens, showing a list of layout templates. You'll use a template that includes a place for a legend, a title, and an inset map.
The window changes to the Data Frame Order dialog box. A data frame is another name for a map. The template you chose has two data frames, one in the main square and one in the smaller square in the lower right. This dialog box allows you to choose which data frame will be displayed in which square. Currently, you only have one data frame: the Layers data frame, where you have placed all your layers so far. You'll learn more about data frames when you create an inset map later in the lesson.
For now, you'll ignore this window. Besides the main data frame, which contains your map, the layout has spaces for a title, a legend, a text description, and an inset map. The layout zooms to cover the entire page. Take note of the rulers above and to the left of the map. When you applied the new template, the dimensions of the layout changed to 16 by 21 inches the values may be different if you are using another unit of measurement. These are the default dimensions of the template, but they are much larger than a standard printer paper page.
The Page and Print Setup dialog box opens. You'll change the page dimensions to a standard 8. Before you change the page settings, confirm your printer is set to print pages of these dimensions. This option ensures the existing map elements are automatically resized to fit the new page dimensions. The rulers change to reflect the new dimensions. When the map elements were resized, they moved a little and no longer line up with the layout. Every map element is highlighted with a dashed line and selection handles.
If you move any element, all selected elements will move with it. Try to keep all map elements with the exception of the legend, which you'll change in the next section within the dotted line near the border of the page.
This dotted line represents the printer margins. You've prepared the layout of your final map. Next, you'll change the default map elements, beginning with the legend. A legend shows what the map's symbols represent. Your default legend is so long it sticks out over the top of the layout. In this section, you'll format the legend so it fits on the layout and conveys information as clearly as possible. The General tab allows you to choose which map layers appear in the legend and in what order.
By default, the Legend Items list includes every layer on the map, even layers that are turned off.
The left and right arrows add or remove items, while the up and down arrows reorder them. The Roads item is removed from the list and will no longer appear in the legend.
Select multiple items at once by holding Ctrl and clicking the items. These items reflect the visible layers. You'll reorder the list so the key elements of your analysis appear at the top and the reference layers appear at the bottom. The Cities item is moved to the bottom of the list.
You can use these arrow buttons to move legend items up and down or to the top or bottom of the list. The legend is still too tall. You don't want to remove any more list items, but you can break the legend into two columns.
Additionally, the layer name and heading of the Cities item are too large compared to the rest of the text. This setting adds a second column that includes the Cities item. Because the Cities item is larger than the others, organizing your columns this way should give you two similarly sized columns. The Legend Item Properties dialog box opens. In this dialog box, you can change the text symbols used by the legend item.
Most of your legend items have only one type of text: the label next to the map symbol. The Cities item has a layer name, an attribute heading, and labels that show the values for each symbol. Next, you'll resize the legend and move it to the middle box in the right column of the layout. Your layout now has a complete legend. You will continue to improve your print map's design. Next, you'll change details of the map and layout to increase clarity.
First, you'll add a title. Then, you'll change the color scheme of the rectangles in the layout to match the map. After that, you'll add a description that explains your analysis and cites your sources. Lastly, you'll change the map's scale and add a scale bar so your audience will understand the size of the area your map represents.
The Properties dialog box opens. Next, you'll change the colors of the rectangles to match your map. The Properties dialog box opens, with options for the rectangle's appearance. You'll change the other rectangles to a lighter shade of green. The rectangle's Properties dialog box opens. If you find it difficult to click the rectangle without clicking the legend, move the legend out of the way, change the rectangle's color, and move the legend back.
Next, you'll add a description to explain the purpose of your map and the results of your analysis. You'll also use it to show the sources of your data. The Draw toolbar opens. This toolbar has options to draw lines, shapes, and text boxes on your map or layout. About 46 percent of the area within 5. Assuming a similar rate of deforestation, the proposed road would lead to about sq. This description uses the example results, which may differ from your results. Replace the percentage of area near roads and the area of new deforestation values with your own values.
You'll also remove the default black frame that appears around the text box. If your text does not completely fit, your text box may be too small. Either resize the text box or adjust the rectangle sizes until all text is visible. Next, you'll change the map scale and add a scale bar. A map's scale is the relationship between a distance on the map and a distance on the ground. Scale is typically expressed as a fraction or ratio. For instance, in a map with a scale, one unit of distance on the map is equal to of the same units of distance in the real world.
The scale of your map can be found on the Standard toolbar. When you rescale the map, your data may become off-center or parts of it may fall outside of the data frame.
You can reposition the map in the data frame with the Pan tool on the Tools toolbar. Because your analysis was done in metric measurements, you'll use a metric scale bar. The scale bar overlaps with the basemap sources.
Resizing the scale bar will change the values it displays. The color of the scale bar doesn't show up well on top of the basemap. Next, you'll create an inset map. An inset or locator map is a smaller map that shows the geographic location of the main map. Your inset map will go in the empty data frame of your layout.
To have multiple maps in one layout, each map needs its own data frame. Map documents have only one data frame by default, but you added a second data frame when you applied the layout template.
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