Aerial Results Viewer User Guide

Forest Health Protection Aerial Survey Results Viewer User’s Guide Release 2.0 July 14, 2008 Prepared By Office of Knowledge Management Northeastern Area State and Private Forestry US Forest Service Aerial Survey Results Viewer User Guide Page 2 Table of Contents Overview...............................................................................................................3 Getting Started......................................................................................................4 Accessing the Viewer ........................................................................................4 Browsing the Viewer .............................................................................................5 The Map Window ..................................................................................................5 The Map Window ..................................................................................................6 The Layer Menu..................................................................................................11 The Map Legend.................................................................................................20 The Scale Setting................................................................................................22 Cross-Hatching ...................................................................................................24 The Overview Map..............................................................................................25 The Toolbar ........................................................................................................28 The Overview Tool ..........................................................................................28 The Zoom In Tool ............................................................................................29 The Zoom Out Tool .........................................................................................32 Previous Extent ...............................................................................................34 Previous Extent ...............................................................................................35 Full Extent .......................................................................................................37 The Pan Tool...................................................................................................37 The Identify Tool..............................................................................................40 The Measure Tool ...........................................................................................42 The Print Tool..................................................................................................44 Saving a Map Image .......................................................................................48 Glossary..............................................................................................................50 Index ...................................................................................................................52 US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 3 Figure 1. The Aerial Survey Results Viewer (FHPViewer) as it appears in your internet browser window. Overview The Forest Health Protection Aerial Survey Results Viewer (FHPViewer) is a web-based application that may be used to view and download information collected by the Forest Health Protection (FHP) aerial survey program (Figure 1). Annual aerial pest detection surveys are a critical component of forest health management on National Forests, Tribal and other federal forests, state & county forests and for private forest landowners. Broad and timely access to current forest pest conditions and the availability of historical disturbance data enables forest managers to make better informed and more effective management decisions. While this information was available in the past, many land managers either didn’t know it existed or that it was available in GIS formats which did not lend themselves to the casual user. By using the web-based FHPViewer, aerial survey data is now available to anyone with internet access. Casual users can obtain current or/and historical damage data, analyze that data, and print their own custom paper maps using the FHPViewer. More advanced users can opt to download that actual damage shapefile to use in their own GIS applications. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 4 Figure 2. Accessing the FHPViewer in your internet browser window. Getting Started In order to use the FHPViewer, you must have a web browser (Microsoft Internet Explorer 5.0 or equivalent) and an Internet connection. Accessing the Viewer The viewer can be accessed in two ways. The simplest way is to enter the viewer’s URL (http://na.fs.fed.us/ims/aerial) into the address box. Or, you can go to the Forest Service Northeastern Area’s Forest Health Protection website (http://na.fs.fed.us/fhp/index.shtm – see Figure 2) and click on the FHPViewer link. Accessing the FHPViewer from the Northeastern Area’s website allows you to see other Forest Service projects and more information related to the FHPViewer. Note: In this user guide, yellow circles have been inserted into graphics as an aid to the user. These circles do not appear in the FHPViewer or any of its associated web pages. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 5 Browsing the Viewer Once you are on the FHPViewer’s webpage, take a minute to review its different components. Although the viewer is easy to use and navigate, gaining an initial awareness of the viewer’s different components will allow you to use the viewer more efficiently in later stages. The FHPViewer’s components are the: Overview Map, Scale Setting, Legend / Layer Detail, Layer Menu, Redraw Map Button, Ancillary Links, Toolbar, and Map Window (see Figure 3). Figure 3. The main components of the viewer. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 6 The Map Window The Map Window is the most important component of the FHPViewer; this is where geographic aerial survey data is displayed. After opening the viewer (by entering http://na.fs.fed.us/ims/aerial into your web browser’s address line), a default map will appear in the Map Window (see Figure 4). Figure 4. Components of the map window (default display). Step 1: Make sure your web browser is open and displaying the FHPViewer (http://na.fs.fed.us/ims/aerial). Step 2: Examine the toolbar (see Figure 3). By default the “Zoom In” tool should be selected (selected tools have a red box surrounding the tool’s ). If you see that the “Zoom In” tool is not selected, icon select it by clicking on the icon (the magnifying glass with a plus sign). Note: For more information on tools, go to the Toolbar section of this guide. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 7 Step 3: Once the “Zoom In” tool is selected, roll your cursor over the Map Window. When you roll your cursor over the Map Window, it should turn into a set of crosshairs (if your mouse pointer settings are set to “Windows Default”) like those in Figure 5. If your machine’s graphics are assigned with a different setting, the mouse pointer may not appear as crosshairs. You can change the mouse pointer settings in your Control Panel. Figure 5. The mouse cursor as crosshairs in the map window. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 8 Note: Review Steps 4 and 5 before executing their instructions! If at any time you feel as though you have zoomed into the wrong area, press the “Prev. Extent” icon in the toolbar and repeat the previous step. Figure 6. Zooming in over the central Midwestern states. Step 4: Place your mouse cursor somewhere in the state of Ohio (see Figure 6). Once your cursor is Ohio, click and hold the left mouse button and move on to step 5. Step 5: While holding the left mouse button, drag your mouse cursor from Ohio to someplace in central Michigan (see Figure 6). Before releasing the left mouse button, notice the orange-colored box you have formed by dragging the mouse cursor – this is the “Zoom Box”. The “Zoom Box” shows the area the Map Window will display once you release the left mouse button. Once you have seen the box, and have the cursor in central Michigan, release the left mouse button. Your Map Window will refresh. Upon refresh, it should resemble Figure 7. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 9 Figure 7. Zoomed in map window. Step 6: At this point, you are zoomed into the central Midwestern states of Ohio, Michigan, and Indiana. Take a moment to review some of the Map Window features (see Figure 7). The scalebar has been adjusted to fit the new zoomed in area (changing from about 300 miles to about 40 miles – this may be different from your display, depending on the size of your “Zoom Box”). Also, the Overview Map now has a small orange-colored Zoom Box, which shows the area being displayed in the Map Window. Of course, the North Arrow remains unchanged following the “Zoom In” because the directional orientation of the FHPViewer is constant. Step 7: Surrounding the entire Map Window is an orange-colored border with sides reading North, East, South, and West. Roll your mouse cursor onto the “East” border (see Figure 8). Notice how the border changes from a dark orange-color to a light cream-color. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 10 Figure 8. Rolling the mouse cursor onto the map window border. Step 8: Click the “East” border. Afterwards, you’ll notice that the Map Window is displaying an area just to the east of what was previously being displayed. At any time, you can click on the Map Window’s North, East, West, and South borders to pan in these directions. Step 9: Go to the toolbar and click the icon next to “Full Extent”. This will bring you back to the default view of the Map Window (the full 20 state Northeastern Area – see Figure 3). US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 11 The Layer Menu The Layer Menu is used to control what data is displayed in the Map Window (whereas the “Zoom” tools and Map Window borders are used to control what area is displayed in the Map Window). The Layer Menu is displayed to the right of the Map Window (see Figure 3). The Layer menu shows what layers are currently displayed. By default, the Layer Menu shows the “Damage Type” layer for the most recent available year as well as state boundaries layer. To verify that the states layer is being displayed and to add an additional layer, complete the following instructions: Step 1: Click on the plus sign next to “Reference”. This will show the “Reference” subcategories. After clicking on the plus sign it will become a negative sign, meaning the category tree is expanded (see Figure 9). Step 2: Click on the plus sign next to the “Boundaries” subcategory. A list of boundary layers is displayed. Step 3: You can now see the different layers of the “Boundaries” subcategory. By default, the States layer is displayed. Click the box next to the “Counties” layer. A check mark should appear in the box after clicking it. Step 4: Although you’ve clicked on the “Counties” layer box, the display in the Map Window remains unchanged. This is because changes you make to the layer menu are not displayed until you refresh the map. Step 5: To refresh the map, click on the “Redraw Map” button in the lower right corner of the FHPViewer browser window (see Figure 10). Figure 9. Layer menu with "Boundaries" subcategory expanded. Redraw Map Button US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 12 Figure 10. Displaying the “Counties” layer. The “Counties” layer is static, meaning the layer’s display will not change based on the map’s scale (how far in or out the map is zoomed). Some layers, however, display differently with respect to scale. Continue the next few steps to view a layer with scale-dependent symbology. Step 6: Turn off the “Counties” and “Damage Type” layers by clicking the boxes next to the layers’ names. Step 7: Turn on the “Cities” layer (in the Reference category tree) by clicking the box next to the “Cities” layer’s name. Step 8: Click the “Redraw Map” button (see Figure 10). US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 13 Figure 11. Displaying the “Cities” layer at the map’s full extent. Step 9: The “Cities” Layer should now be displaying in the Map Window (see Figure 11). At the map’s Full Extent, only a few major cities display in the Map Window. Zooming in to a more defined area, however, will display both small and major cities. Select the “Zoom In” tool, and make a Zoom Box around Pittsburgh, Pennsylvania (see Figure 12). Then, release the left mouse button to zoom in to the area. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 14 Figure 12. Zooming into Pittsburgh, PA. Step 10: At this point, your Map Window should be zoomed into the area around Pittsburgh, PA. As you can see, smaller cities that do not appear at the map’s Full Extent are displayed at this scale. Create another Zoom Box around the Pittsburgh, PA area to zoom in further (see Figure 13). US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 15 Figure 13. Zooming into the Pittsburgh, PA area. Step 11: At this point, you should be zoomed into the Pittsburgh, PA metropolitan area. At this scale, all cities from the “Cities” layer are displaying (that are in the defined area, of course). Your Map Window should be similar to the Map Window in Figure 14. Step 12: Go to the toolbar, and click the icon next to “Full Extent” to zoom out to the map’s Full Extent (after performing this step, your Map Window should resemble the Map Window in Figure 12). Figure 14. Pittsburgh, PA metropolitan area. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 16 Note: Other “Scale Dependent” (Dynamic) Layers include Urban Areas, Roads, and all Layers listed in the “Damage” Category Tree. In addition to the “Reference” and “Damage” layer categories, there is a “TerraServer” layer category. Terraserver (visit http://terraserver-usa.com/ for more information), provided by Microsoft and the United States Geological Survey, is an online aerial photograph and topographical map database. The FHPViewer is compatible with the imagery provided by TerraServer, USA, allowing users to view aerial damage survey data with aerial photography and topographical maps. Follow these next few steps to familiarize yourself with the FHPViewer’s TerraServer functionality. Step 13: Your map should be at Full Extent (showing all of the Northeastern Area’s 20 states). Before moving forward, collapse all of the open category trees by clicking the negative signs in the layer menu (see Figure 15). Afterwards, your Layer Menu should resemble Figure 16 (depending on updates, there may be other layer category trees). Step 14: The “TerraServer” layer category will not appear in the Layer Menu unless the Map Window is zoomed in far enough (this is because of the high level of detail in the TerraServer aerial photos and topographical maps). Using the “Zoom In” tool in the toolbar, zoom in until you see the TerraServer category in the Layer Menu. You can do this by either making a “Zoom Box”, or by selecting the “Zoom In” tool and simply clicking on a location in the Map Window (see Figure 17). Figure 15. The expanded category trees of the layer menu. Figure 16. Layer menu with collapsed category trees. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 17 Figure 17. FHPViewer with the “TerraServer, USA” layer category displayed. Step 15: Once the TerraServer category tree appears, expand it by clicking on the plus sign next to it. Within the TerraServer category tree, there are two different layers: “DOQ” (Digital Orthoquad Photos) and “DRG” (Digital Raster Graphics). The Digital Orthoquad Photos are aerial photos showing the real world surface in grayscale colors. The Digital Raster Graphics are highly detailed topographical maps provided by the United States Geological Survey. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 18 Figure 18. Visible digital orthoquad photos layer (DOQ). Step 16: Click the box next to “DOQ” layer in the TerraServer category tree. Then, click the “Redraw Map” button in the bottom-right corner of the screen to refresh the Map Window. You may have to wait a few moments for the layer to become visible. Once the “DOQ” layer is visible, your Map Window should be displaying grayscale aerial photos like those in Figure 18. Step 17: Uncheck the box next to the “DOQ” layer. Then, check the box next to the “DRG” layer and press the “Redraw Map” button. Again, you may have to wait a few moments for the changes to take effect. Afterwards, topographical map images similar to those in Figure 19 should appear in your Map Window. Figure 19. Visible digital raster graphics layer (DRG). US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 19 Note: The “DOQ” and “DRG” layers are only visible up to a certain scale. If you zoom in too far, they will no longer be visible (even though they will still be checked in the Layer Menu). If you zoom in too far, go to the toolbar and click the icon next to “Prev. Extent”. Step 18: You are now acquainted with the TerraServer layer category. Now, refresh your browser window to the URL http://na.fs.fed.us/ims/aerial (if you get any messages from your browser, click OK). The final element of the Layer Menu is assigning the Active Layer. The Active Layer is used with different tools in the toolbar. For right now, all you need to know is how to make a layer active. You will use the Active Layer in later sections. Step 19: Your browser should be refreshed and displaying the default view. Look at the Layer Menu. You will see that in the “Damage” category tree, under the year “2007”, there are three layers listed: Agent Category, Damage Type, and Host Name. Notice that the layer “Damage Type” is in italics (see Figure 20). Step 20: Click the plus sign next to the year 2006. This will expand the category tree for Damage Layers from the 2006 Aerial Damage Survey. Step 21: Within the year 2006, you will see Agent Category, Damage Type, and Host Figure 20. The active layer. Name layers (these layers appear for each year of the aerial survey). Click (within the 2006 category tree) on the “Agent Category” text. This will change the active layer from Damage Type (2007) to Agent Category (2006). After clicking on the text, it will display in italics. In all cases, clicking on a layer name will make that layer active. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 20 The Map Legend Note: Upon initially opening the FHPViewer, the legend will not be visible. Step 1: Refresh your browser window to the URL http://na.fs.fed.us/ims/aerial Step 2: Look just above the Layer Menu. You will see two orange-colored boxes with the words “Layers” and “Legend” (see Figure 3). By default, the “Layers” Menu is displayed. Click on the “Legend” button to display the Map Legend (see Figure 21). Step 3: Recall that the “Damage Type” layer (within the Damage Figure 21. The “Legend” button. category tree under the year 2007) and the “States” layer are displayed by default. After clicking on the Legend button, the legend for these two layers will replace the layer menu (see Figure 22). Figure 22. FHPViewer with the map legend displayed. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 21 Figure 23. “Damage Type” (2007) layer with labels in the map window. Step 4: Reopen the Layer Menu by clicking the “Layers” button (directly to the left of the “Legend” button). Step 5: Open the “Reference” category tree in the Layer Menu (click the plus sign next to “Reference”). Then, check the box next to the “Roads” layer. Now, reopen the Map Legend by clicking the orange “Legend” button above the Layer Menu. Notice how the “Roads” layer is being displaying in the Map Legend but not in the Map Window. This is because you need to refresh the Map Window by clicking the “Redraw Map” button. Still, it is important to note that you do not need to refresh the Map Window to view the symbology detail of a layer in the map’s legend. Note: All layers within the “Damage” category tree in the Layer Menu will display labels in the Map Window. To do this, simply zoom into an area until you see the labels appear next to the map features. However, the area needs to be closely defined (zoomed-in very close – you should be able to do this now) for the labels to appear (see Figure 23). These are scale-dependent, in-map labels. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 22 Figure 24. The scale setting button. The Scale Setting The Scale Setting is located just above the Layer Menu and Legend buttons. The scale setting button allows you to adjust the scale of the Map Window. Step 1: Refresh your Internet browser window to the URL: http://na.fs.fed.us/ims/aerial. Then, locate the Scale Setting button (see Figure 24). Step 2: With your mouse cursor, click the second tallest bar in the Scale Setting button (see Figure 25) Step 3: Take a look at the Map Window. You’ll notice that by pressing the Scale Setting’s second button, the map zooms in. Now, click the tallest Scale Setting button. Clicking on the tallest Scale Setting button will bring you back to the Map Window’s Full Extent. Figure 25. Changing the scale setting. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 23 Ultimately, the best way to understand the Scale Setting button is to approach it as an alternative way of zooming in and out. In some ways, the Scale Setting button is a better alternative than using the Zoom In or Zoom Out tools because the location is stationary. In other words, when you use the Scale Setting button to adjust the zoom level of the Map Window, the map will zoom in or out based on a fixed point (unlike the “Zoom In” and “Zoom Out” tools, in which the zoom is based on the location of the mouse cursor). In some instances, this may be a more appropriate means of zooming in and out. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 24 Cross-Hatching Figure 26. Cross-hatching in the map window. In the “Reference” category tree of the Layer Menu, there are several different layers with features that share the same classifications and/or areas. In the example shown in Figure 26 above, “FS” features from the “National Forests” and “National Wilderness Areas” layers share some of the same area. For this reason, the National Wilderness Area’s FS features have diagonal lines that run in the opposite direction of the National Forest’s “FS” features’ lines. Together, these lines form a cross-hatch pattern, allowing you to see where the two features overlap. In Figure 26, the Boundary Waters Canoe Area Wilderness within the Superior National Forest appears as a green cross-hatch. All layers with features that use line symbology may overlap with other layers. Be sure to examine the map for cross-hatching when you are displaying multiple Reference layers. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 25 The Overview Map At this point, you are familiar with several ways to adjust the area being displayed in the Map Window. The Overview Map is another tool that allows you to adjust the area being displayed in the Map Window. Step 1: Refresh your internet browser window to the URL: http://na.fs.fed.us/ims/aerial. Step 2: Notice the orange “Zoom Box” inside of the Overview Map. This box shows that area that is being displayed in the Map Window (see Figure 27). Figure 27. The overview map. Step 3: With your mouse, click (within the Overview Map) somewhere near the center of Wisconsin (see Figure 28). US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 26 Figure 28. Changing the map window display via the overview map. Notice how the center of the Map Window changes after clicking on a location in the Overview Map (in this case, a location in central Wisconsin – see Figure 28). This represents the key functionality of the Overview Map. At any time, you may click on the Overview Map to change the center location of the Map Window. However, the Overview Map cannot be used to change the scale (i.e. zoom level) of the Map Window. It is important to note that using the Overview Map to change the displayed area of the Map Window will not change Map Window’s scale. Step 4: You have changed the Map Window’s central location to an area in central Wisconsin. Take a moment to notice how the location of the Zoom Box in the Overview Map reflects this change. Now, go the Scale Button (located just above the Layer Menu – see Figure 3) and click on the second-tallest bar (see Figure 29). Take a moment to review the changes to the Overview Map. Notice how the central location of the Map Window is still in central Wisconsin; this is because you have not changed the central location of the map by clicking on the Overview Map (since the initial change in Step 3). However, you have changed the Scale Setting of the Map Window, which is reflected in the Overview Map (see Figure 30). Figure 29. Click on the second scale button. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 27 Figure 30. Overview map zoomed into central Wisconsin. Step 5: With your mouse, click on a spot (in the Overview Map) somewhere in central Pennsylvania. After doing this, your Map Window should resemble Figure 31. Again, you’ll notice that the Scale Setting of the Map Window has not changed. However, by clicking on central Pennsylvania in the Overview Map, you have changed the Map Window’s central location. Figure 31. Overview map zoomed into PA. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 28 The Toolbar The FHPViewer has several tools that allow you to customize the Map Window and perform a number of different tasks. Using the Toolbar (see Figure 3) allows you to take full advantage of the abilities of the FHPViewer. This section is divided into sub-sections based on the different tools of the Toolbar. The Overview Tool This tool allows the user to toggle the visibility of the Overview Map. Step 1: Refresh your Internet browser window to the URL: http://na.fs.fed.us/ims/aerial. Step 2: By default, the Overview Map is visible in the Map Window. Click on the icon next to “Overview” in the Toolbar. After this, the Overview Map will no longer be visible (see Figure 32). Figure 32. Toggling the visibility of the overview map. Step 3: Now that the Overview is hidden (is no longer visible), click again on the icon next to “Overview” in the Toolbar. This will make the Overview Map visible. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 29 The Zoom In Tool Step 1: Refresh your internet browser window to the URL: http://na.fs.fed.us/ims/aerial. Step 2: Within the toolbar, click on the icon next to “Zoom In” (see Figure 33). Figure 33. Clicking on the icon next to the "Zoom In" tool. Note: Review these steps and their associated graphics before executing! Step 3: Bring your mouse cursor into the Map Window and click (with the left mouse button) on a location in central Michigan but do not release the mouse button! Step 4: Drag the mouse cursor to a location in central Illinois. Before releasing the left mouse button, notice the orange-colored “Zoom Box” that appears as you move the mouse cursor. This box represents the area that will be displayed in the Map Window once you release the mouse button (see Figure 34). Now, release the left mouse button. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 30 Figure 34. Zooming in over the central midwestern states. Take a moment to review some of the changes in the Map Window (see Figure 35). You’ll see that the Zoom Box made in the previous step is shown in the Overview Map. This Zoom Box in the Overview Map shows the area being displayed in the Map Window. Also, the Scale Bar now represents a shorter distance (because you are zoomed in to a smaller area). And, of course, the Map Window is displaying a smaller area. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 31 Figure 35. Changes in the map window using the "Zoom In" tool. Step 5: In the Toolbar, click on the icon next to “Full Extent”. This will bring you back to the default display of the Map Window (the full 20 state USDA Forest Service Northeastern Area). Step 6: Although you pressed the “Full Extent” tool, the “Zoom In” tool should still be selected (the icon should have a red square around it). With the “Zoom In” tool selected, bring your mouse cursor to a location in central Michigan. Press and release the left mouse button. The Selected “Zoom In” Tool You’ll notice that by clicking the mouse button you zoom into a more defined area. Meaning, there are two ways to use the Zoom In tool. One way is to create a Zoom Box by clicking and dragging the mouse over a desired area. Another method is to simply click on an area to zoom in closer. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 32 The Zoom Out Tool Step 1: Refresh your internet browser window to the URL: http://na.fs.fed.us/ims/aerial. Step 2: Complete steps 2 through 4 of “The Zoom In Tool” section to zoom into the central Midwestern states (afterwards, your Map Window should resemble Figure 35). Step 3: In the toolbar, click the icon nect to “Zoom Out” to select the Zoom Out tool. Note: Review steps 4 and 5 and their associated graphics before executing! Step 4: Bring your mouse cursor into the Map Window, click on a location in Michigan but do not release the left mouse button! (see Figure 36). Step 5: While holding the left mouse button, drag the mouse cursor to a location in Illinois. Then, release the left mouse button (see Figure 36). Figure 36. Creating a "Zoom Box" with the "Zoom Out" tool. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 33 Step 6: At this point, your Map Window should resemble Figure 37. You have just performed a “Zoom Out” operation using a Zoom Box. There is also a simpler way to use the Zoom Out tool. In the Toolbar, click on the icon next to the “Prev. Extent” (Previous Extent) tool. Figure 37. The map window after zooming out. Step 7: Your Map Window should once again resemble Figure 36. Although you have clicked the Prev. Extent in the Toolbar, the Zoom Out tool should still be selected (meaning the icon next to the tool should have a red box around it). Move your mouse cursor to a location in Indiana, then click (and release) the left mouse button (see Figure 38). Afterwards, your Map Window should resemble Figure 39. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 34 Figure 38. Zoomed out over the central midwestern states. Figure 39. Zooming our from central Indiana. In summary, there are two ways to use the “Zoom Out” tool. First, a user can select the Zoom out tool in the Toolbar and create a Zoom Box to zoom out from a defined area. Or, a user can click on a location to zoom out. The first method allows a user to control the degree to which the Map Window will zoom out while the second method provides an easier and faster means of zooming out. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 35 Previous Extent While zooming in, zooming out, and panning, you may want to go back to a previous Map Window display, which the Previous Extent” tool allows you to do. One way to approach using the Previous Extent tool is to understand it as an “undo” button. If you have panned or zoomed to an area, and wish to return to the previous area, you simply need to press the “Prev. Extent” button. However, it is important to remember that the “Previous Extent” tool only goes back to the previous Map Window display and not further (meaning you can not repeatedly press the Previous Extent button to go back several steps). Step 1: Refresh your Internet Browser Window to the URL: http://na/fs/fed/us/ims/aerial. Step 2: Click on the “Zoom In” icon to activate the Zoom In tool. Then, zoom in over the Central Midwestern States (see Figure 40). Figure 40. Zooming in to the central midwestern states. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 36 Figure 41. Zooming in to the Chicago metropolitan area. Step 3: Your Map Window should now resemble Figure 41. Now, zoom in again over the Chicago area (see Figure 41). Afterwards, your Map Window should resemble Error! Reference source not found.. Figure 42. Zoomed in over the Chicago metropolitan area. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 37 Step 4: Now that you have used the Zoom In tool twice, click on the icon next to “Prev. Extent” in the Toolbar. Afterwards, your Map Window will display the area shown in Figure 41. This is the Previous Extent that was displaying in your Map Window before you zoomed into the Chicago area. Step 5: Once again, click on the icon next to Prev. Extent in the Toolbar. Notice how the display in the Map Window reverts to the area shown in Error! Reference source not found. It is important to note that the Prev. Extent tool only goes back to the area that was being displayed directly before the current display. In other words, the Prev. Extent tool does not keep a log of the Map Window’s displays. Rather, it can only go back one “step”. If you were to repeatedly click on the Prev. Extent icon, the Map Window would switch between two different displays. Full Extent The “Full Extent” tool is probably the easiest tool to use in the Toolbar. In the FHPViewer, Full Extent refers to the display in the Map Window that shows the largest amount of area. In the FHPViewer, this is the area that initially displays after opening the viewer in the Internet Browser window. Thus, whenever a user clicks on the “Full Extent” icon, the Map Window will display the same area that is initially shown after opening the FHPViewer. Step 1: Refresh your Internet Browser Window to the URL: http://na.fs.fed.us/ims/aerial. Step 2: Zoom In to the Central Midwestern states (see Figure 40). Afterwards, the area being displayed in your Map Window should resemble Figure 41. Step 3: Now, click on the icon in the Toolbar next to “Full Extent”. After this, your Map Window should be the same as Figure 1, which is the area that initially displays in your Internet Browser window after opening the FHPViewer. The Pan Tool The “Pan” tool allows a user to perform a controlled movement of the area displayed in the Map Window. Step 1: Refresh your Internet browser window to the URL: http://na.fs.fed.us/ims/aerial. Step 2: Zoom In to the Central Midwestern states (see Figure 41). Afterwards, your Map Window should be displaying the same area shown in Figure 42. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 38 Step 3: In the toolbar, click the icon next to “Pan” to select the Pan tool. Then, bring your cursor into the Map Window. Click and hold somewhere in the Chicago Metro Area (see Figure 43). Figure 43. Click and hold using the “Pan” tool. Step 4: While holding the left mouse button, move the cursor towards the bottom-right area of the screen (see Figure 44). Then, release the left mouse button. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 39 Figure 44. Drag your cursor down and left and release the left mouse button over the Chicago area. Step 5: After releasing the left mouse button, your Map Window should look like Figure 45. In summation, the “Pan” tool is used to change the area being shown in the Map Window. The “Pan” tool can be used at any scale, and can relocate to any area in the FHPViewer. Figure 45. The map window following a pan. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 40 The Identify Tool The “Identify” tool is used to retrieve attributes of the features displaying in the Map Window. Step 1: Refresh your Internet Browser Window to the URL: http://na.fs.fed.us/ims/aerial. Step 2: In the Toolbar, click on the icon next to “Identify” to select the Identify tool (see Figure 46). Step 3: In the Layer Menu (see Figure 3), click on the plus sign next to “Reference” to open the Reference category tree (see Figure 47). Notice that the States Layer is checked. Also, notice that within the Damage category tree, under the year 2007, the “Damage Type” Layer is Figure 46. Selecting the “Identify” tool. checked as well. This means that these two Layers are displaying in the Map Window. Step 4: The “Identify” tool should still be selected (in the Toolbar, there should be a red box surrounding the icon next to “Identify”). Roll your mouse cursor onto the Map Window, and place it over the large brown feature in the state of Missouri (see Figure 48). Then, click on the feature. Step 5: After clicking on the brown feature in Missouri, a new window titled “Display All Attribute Data” should appear (see Figure 49). Figure 47. Opening the “Reference” category tree. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 41 Figure 48. Clicking on the brown damage feature in Missouri. Examine the contents of the window. Inside the window, there are two tables. The first table is titled “States”; the second table is titled “07 by Damage Type”. When a user clicks on the Map Window using the “Identify” tool, all features displayed in the [clicked on] area will have their attributes shown in this table. In this case, attributes for the state of Missouri and attributes for the “Damage Type” feature are displaying. If another Layer were displaying and had features located in the same area, that feature’s attributes would also display in this window. Figure 49. The “Display All Attribute Data” window. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 42 The Measure Tool The measure tool allows you to measure distances in the Map Window. Several different segments can be combined to make total distance measurements. Step 1: Refresh your Internet browser window to the URL: http://na.fs.fed.us/ims/aerial. Step 2: In the toolbar, click on the icon next to “Measure” to use the Measure tool (see Figure 50). Step 3: Roll your mouse cursor onto the Map Window. Click on a location near the Detroit metro area. Then, Figure 50. Clicking on the measure tool. move the mouse cursor to a location near the Chicago metro area and click the left mouse button (see Figure 51). Notice the red line that appears, and the “Total” box at the top of the Map Window displaying the distance of the line. Figure 51. Measuring the distance between Detroit and Chicago. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 43 Figure 52. The "Segment" box. Step 4: Now, roll your mouse cursor (but do not click) onto to a location near the St. Louis metro area (see Figure 52). Notice how the “Segment” box at the top of the Map Window displays a new distance, while the “Total” box’s value remains unchanged. Next, click on the location near the St. Louis metro (see Figure 53). Notice how the distance that appeared in the Segment box has been added to the Total distance, leaving the Segment box empty. Figure 53. Adding a line segment to the total measurement. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 44 Step 5: In the toolbar, click on the icon next to “Clear”. This will erase the lines and measurements you created, emptying the “Total” and “Segment” boxes at the top of the Map Window. Note: There are no limits on the number of segments you can add to the total. Also, measurements will be maintained even if you change the map’s scale (by zooming in and out) or refresh the map window (by clicking on the “Redraw Map” button). Only the “Clear” function in the toolbar will reset the measurement tool. The Print Tool The Print tool allows a user to prepare a snapshot of the Map Window for printing. By default, the FHPViewer will create a print page that includes a legend and overview map. Step 1: Refresh your Internet browser window to the URL: http://na.fs.fed.us/ims/aerial. Step 2: In the toolbar, click on the icon next to “Print” (see Figure 54). This will open the “Print Map Dialog” window. Step 3: In the new window, there are Figure 54. Clicking on the “Print” icon. several customization options for your print page. For now, use the default settings (a landscape format on 8 ½ by 11 inch paper). In the “Enter Map Title” box, type “Test Print Page” (see Figure 55). Then, click on the “Create Print Page” button; this will open a new window showing a preview of your printable map (see Figure 56). Figure 55. The print map dialog window. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 45 Figure 56. Elements of the printable map. Step 4: Notice some of the elements of the printable map. It includes your customized title, the USDA Forest Service Northeastern Area logo, an overview map, source information, and a legend (see Figure 56). When creating a printable map, the FHPViewer will automatically include the symbology information for all displaying layers (in this case, “States” and “07 by Damage Type”) in the legend. Also, the FHPViewer will automatically insert an overview map into the print page. In this case, the entire overview map has a black box surrounding it because you are zoomed out to the map’s Full Extent. If you were zoomed in closer, the overview map would reflect it by showing a black box around the defined area. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 46 Figure 57. Opening the page setup menu window. Step 5: After examining the print page’s different elements, click on the “File” tab at the top of the window, and then on “Page Setup” (see Figure 57). Within the Page Setup window, set the Orientation to “Landscape” (see Figure 58). Although the printable map is designed with a landscape layout, you still need to specify that you want the map to print with a landscape orientation. This can only be done in the Page Setup menu of the printable map’s window. The page size specified in this menu must be the same as the page size selected in the “Print Map Dialog” window’s menu (see Figure 55). US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 47 Figure 58. The page setup menu window. Step 6: Once you have set the proper settings in the Page Setup menu, press OK. Then, click on the “File” tab at the top of the print page window and select “Print Preview...”. This will open a Print Preview window (see Figure 59). The preview should have a landscape orientation designed for 8 ½ by 11 inch paper. Step 7: To print, click on the “Print...” button in the upper left of the Print Preview window. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 48 Figure 59. The print preview window. Saving a Map Image The Print Map tool may be used to save an image file of your map. Instructions are as follows: Step 1: Step 2: Step 3: Click on the Print Map tool on the FHP Viewer Toolbar (see Figure 54). The “Print Map Dialog” window will be displayed within a pop-up window (see ). Select a map size and format for your map. These settings affect the size and orientation of the image file as well. Click the Create Print Page button. A “printer-friendly” version of your map will be displayed in a new pop-up window (see ). US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Step 4: Page 49 Right click on your map and select the “Save Picture As...” menu item. The Windows file browser dialog box. Step 5: Use the Windows file browser dialog box to identify a location and name for where you want to save your image file. The FHP Viewer creates map files in the png (Portable Network Graphics) files. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 50 Glossary Active Layer – This is the layer that is queried when using the Query tool (as of 8/14/08, the FHP Viewer does not have a Query tool – there is no other use for the Active Layer). Ancillary Links – Links on the FHP Viewer page to other USDA and USDA Forest Service webpages. Borders – Orange-colored borders framing the Map Window. These can be used to pan the area being displayed in the Map Window. Category Tree / Layer Category – Layer grouping schemes used in the Layer Menu. Cross-Hatching – Cross-hatching pattern created by two different layers (with line symbology) with overlapping geographies. Digital Orthoquad Photos (DOQ’s) – Geo-referenced aerial photography provided by Microsoft’s Terraserver. Digital Raster Graphics (DRG’s) – Geo-referenced topographical maps provided by Microsoft’s Terraserver. FHP Viewer – Forest Health Protection Aerial Survey Results Viewer provided by the Office of Knowledge Management, Northeastern Area, USDA Forest Service. Full Extent – The maximum geographic extent of the display in the Map Window. Identify – Tool used to identify attribute information of Map features. Layers – Geographic data displayed in the Map Window. Data is divided into layers to facilitate more expedient analysis. Layer Menu – Menu(to the right of the Map Window) used to turn on, turn off, and activate layers. Legend / Layer Detail – Toggle button used to alternate between Legend and Layer Menu displays. Map Window – Main frame of the Viewer used to display geographic data. Measure – Tool used to measure distances in the Map Window. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 51 North Arrow – Arrow in the Map Window pointing north; defines the directional orientation of the Map Window. Overview Map – Small map located in the upper-left corner of the Map Window. The overview map shows the area being displayed in the Map Window, within the context of the entire USDA Forest Service Northeastern Area. Pan – Tool used to geographically move about the Map Window to change the displayed area. Print – Tool used to capture the display of the Map Window and prepare a map for printing. Redraw Map Button – Button the lower-right corner of the Viewer used to refresh the Map Window to reflect changes made in the Layer Menu. Scalebar – Bar in the Map Window used to define the relative distances displayed by the FHP Viewer. Symbology – Symbols (colors, fonts, sizes, etc.) of features displayed in the Map Window. TerraServer (TerraServer, USA)– Online aerial photograph and topographical map database provided by Microsoft and the United States Geological Survey. Toolbar – Collection of tools used to manipulate the Viewer’s display and perform analysis. USDA Forest Service Northeastern Area – 20 state geography of the FHP Viewer (CT, DC, DE, IA, IL, IN, MA, MD, ME, MI, MN, MO, NH, NJ, NY, OH, PA, RI, VT, WI, WV) Zoom Box – Orange-colored box in the Map Window and Overview Map showing the area that is / will be displayed after using the zoom tools. Zoom In – Tool used to decrease the scale of the area shown in the Map Window. Zoom Out – Tool used to increase the scale of the area shown in the Map Window. US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 52 Index Active Layer, 20, 52 Ancillary Links, 5, 52 Borders, 52 Category Tree, 16, 52 Cross-Hatching, 25, 52 Digital Orthoquad Photos, 18, 52 Digital Raster Graphics, 18, 52 FHPViewer, 3, 4, 5, 6, 9, 11, 16, 21, 29, 39, 42, 46, 47 Full Extent, 10, 13, 14, 15, 16, 23, 32, 39, 47, 52 Identify, 42, 43, 52 Layer Category, 52 Layer Detail, 5, 52 Layer Menu, 5, 11, 16, 20, 21, 22, 23, 25, 27, 42, 52, 53 Layers, 16, 20, 21, 22, 42, 52 Legend, 5, 21, 22, 23, 52 Map Window, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 19, 22, 23, 24, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 52, 53 Measure, 44, 53 North Arrow, 9, 53 Overview Map, 5, 9, 26, 27, 28, 29, 31, 53 Pan, 39, 40, 41, 53 Print, 46, 48, 49, 50, 53 Redraw Map Button, 5, 53 Scale Setting, 5, 23, 24, 27, 28 US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Scalebar, 53 Symbology, 53 TerraServer, 16, 18, 19, 20, 53 Toolbar, 5, 6, 29, 32, 34, 35, 39, 42, 50, 53 USDA Forest Service Northeastern Area, 32, 47, 53 Zoom Box, 8, 9, 13, 14, 16, 26, 27, 30, 31, 32, 34, 35, 53 Zoom In, 6, 7, 9, 13, 16, 24, 30, 32, 33, 37, 39, 40, 53 Zoom Out, 24, 33, 34, 35, 53 Page 53 US Forest Service, Northeastern Area State and Private Forestry Aerial Survey Results Viewer User Guide Page 54 Document History Version Number Date 1.0 1.1 1.2 June 2, 2008 July 14, 2008 July 25, 2008 Description Initial draft Reviewed and updated Final. Reformatted document, added document headers, cross references and index marks. US Forest Service, Northeastern Area State and Private Forestry