Data display and visualization
Resources: ESRI Academy (Formerly ESRI virtual campus)
Launch ArcGIS Pro and login with ArcGIS Online credentials if required. Select New> Map> Create New Project. Create a new project in your preferred workspace, in the instructions below we are using the default C:\Users\myname\Documents\ArcGIS\Projects\ folder.
Use your judgement to decide which maps to include in your report.
Viewing data in 2D
Raster data symbology
Display land use classes using custom color, add labels:On the Map tab, in the Layer group, click 'Add Data' Browse to C:\Users\myname\Documents\ArcGIS\582data\ncrast.gdb select 'landcl96' 'OK' RMC landcl96->Symbology In the 'symbology' pane, in the Label column, LMC on the label number to replace numbers 1-7 with these labels, respectively: developed agriculture herbaceous shrubland forest water sediment In the 'symbology' pane, LMC on the color column boxes and replace the color for each land use with a more intuitive one.
Save as layer to preserve the new color scheme and labels:
RMC on the landcl96 entry in the Contents ->'Sharing'->'Save as layer file...' Save as landcl96.lyr in your assignment folder
Display only categories 1 and 2 from the land use map:
RMC landcl96->Symbology In the 'symbology' pane, LMC to select items 3 - 7 (herbaceous - sediment) RMC Remove button to remove values 3 through 7
Display only elevation higher than 100 m over a geology map:
On the Map tab, in the Layer group, click 'Add Data' Browse to C:\Users\myname\Documents\ArcGIS\582data\ncrast.gdb select 'geology' select 'elev' 'OK' RMC elev->Symbology In the 'Symbology' pane, Change 'Strech' to 'Classify' Set the method to 'Equal Interval' Set Classes to 10 On the 'Advanced symbol options' tab of the 'Symbology' pane->'Data Exclusion'-> enter '0-100' Select the "Appearance" tab from the top ribbon Set Transparency to 50% in the "Effects" group of the ribbon
Change colors for raster maps:
RMC elev->Symbology In the 'Symbology' pane, change the color scheme to one of the predifined elevation ramps (hover over each scheme to see the color ramp name)
Use a histogram equalized color table to display topographic slope:
On the Map tab, in the Layer group, click 'Add Data' Browse to C:\Users\myname\Documents\ArcGIS\582data\ncrast.gdb select 'slope' 'OK' RMC slope->Symbology Choose the 'Green to Red' color ramp Change the Stretch Type to 'Histogram Equalize'
Legend, scale, grid
Make a map with a legend, scale and grid:
Turn off all layers except landcl96 in the Contents pane
add the streams layer
On the Map tab, in the Layer group, click 'Add Data' Browse to C:\Users\myname\Documents\ArcGIS\582data\ncshape.gdb select 'streams' 'OK' Change the streams color to blue RMC streams->Symbology Click the symbol line to open the 'Format line symbol' option Click the 'Properties' tab Change the color to a blue and line width to 1.25 'Apply' Toggle to Layout View: Select the 'Insert' tab from the top ribbon, project group->'New Layout' Select a template appropriate for your map On the topr ribbon->Insert tab->Map frames group-> add a 'Map Frame' by dragging a box on the layout
Assign a fixed scale for the layout:
In the map layout window, Contents pane, RMC 'Map Frame'->Properties Click the 'Dispay Options' tab in the 'Element/Format Map Frame' pane Select 'Fixed Scale' under constraint and set it to 1:50,000
Add a legend
On the 'Insert' tab in the 'Map Surrounds' group, click 'Legend' Click and drag on the layout to create the legend RMC on your new legend->Properties. A new 'Element' pane will open In the legend/Element pane, Click to show on legend title Replace the text "Legend" with "Land Classification" On the 'Display' tab of the element pane Add a Legend Frame Border (select one as you feel appropriate) Add a white Frame Background. Set the cap to X:0.1in and Y:0.1in (as in the Frame Border) Adjust the border x and y gap to 0.1 in each Drag the legend to a more appropriate location, and resize it to make it "fit" into your map.
Add a scale bar:
On the 'Insert' tab, in the 'Map Surrounds' group, click the 'Scale Bar' button Select a scale bar (your choice) Click and drag on the layout to create the scale bar. RMC on the scale bar-> Properties In the 'Element' pane, set Division Units to kilometers Set the division value to a whole number and set 'Resize Behavior to 'Adjust width' Place and resize the legend as you see fit for your map design. Make sure that the numbers on the scale are reasonable (round numbers preferably).
Add a grid:
On the 'Insert' tab, in 'the Map Frames' group, click the 'Grid' button select a 'Measured Grid' option
Display roads with labels:
On the Map tab, in the Layer group, click 'Add Data' Browse to C:\Users\myname\Documents\ArcGIS\582data\ncshape.gdb select 'roadsmajor' 'OK' RMC roadsmajor->Symbology Click the symbol line to open the 'Format line symbol' option Search or browse the 'Gallery' and change the symbol to Expressway Select roadmajor in the contents pane. On the ribbon, under Feature Layer, click the Labeling tab, and click 'Label' In the 'Label class' group, select 'Road_Name' from the dropdown. Change the font and size in the 'Text Symbol' group. Use the 'Label placement' group to select 'North American Streets' Or, RMC roadsmajor->Labeling Properties Language should be 'Arcade' Expression $feature.ROAD_NAME Font, size and placement options can be changed in this pane as well. Find and use the 'Halo' option under 'Symbol' Export the layout to pdf Share tab on the ribbon->export group->layout
Compare hillshades
Go back to the Map window and remove all the layers from TOC (or you can create a new project) Add 'elev' from the ncrast geodatabase Change the color ramp for elev to an appropriate elevation color scheme
Compare different types of hillshade effects from an elevation map
1. Hillshade generated using the 3D Analyst Extension.
In the Geoprocessing pane, search for and select the "hillshade" tool. Select elev as input, hillsh_el as output, z factor=3 Click 'Run' The new hillshade should have been added to the contents pane above your elev raster If not, drag the hillshade above the elev raster Change the Hillshade to 50% transparency
2. Hillshade generated with the "Raster Functions" tool:
On the Analysis ribbon --> Raster group->'Raster Functions' pane Expand the Surface functions and select the Hillshade option (or search for Hillshade in the Raster Functions pane). Select 'elev' as the raster Set the Z to 3 to exaggerate the height variation in the terrain Click 'Create new layer' to create a new layer in the current map. (Note that this is only a new display of the processed data—it is not a new raster dataset) The new hillshade should have been added to the contents pane above your elev raster If not, drag the hillshade above the elev raster Change the Hillshade to 50% transparency
To examine the differences, zoom into an area of the data and toggle the hillshade layer on and off (by repetitively checking and unchecking the layer in the TOC). The rapid image interchange emphasizes differences.
In order to copare the results with elev with no hillshade applied you can load the elev layer again, without checking the hillshade effect in Symbology tab
Viewing data in 3D using a Scene
In ArcGIS Pro, a 3D map is called a scene. A scene can be viewed in either global or local mode. Global mode is best for very large study areas. Local mode is best for smaller study areas. You can view any scene as a global scene or a local scene by clicking the Global button or the Local button in the View group on the View tab. Start a Local Scene:With the 'elev' raster still in the map View tab on the ribbon->view->convert->'To Local Scene' A new 'Map_3d' window tab should open
Or create a new Local Scene:
Start a new projectSelect 'Local Scene' from the templates On the Map tab, in the Layer group, click 'Add Data' Add 'ncrast.gdb\elev'
Display 2-dimensional data as a 3-D surface (to render in 3-D): Add a ground elevation surface:
On the Map tab, in the Layer group, click 'Add Data'->'Elevation source' Add 'ncrast.gdb\elev'
To change the vertical exaggeration (z-value multiplier, default is 1) for a layer:
In the Contents pane, under Elevation Surfaces, click Ground The Elevation Surface contextual tab set appears on the ribbon Under Elevation Surface, click the Appearance tab In the Drawing group, for Vertical Exaggeration, type 10
Drape a vector feature over the 3-D (raster) surface:
On the Map tab, in the Layer group, click 'Add Data' Add 'ncshape.gdb\streets_wake' It may add the layer to the 3d layers in the contents pane. If so, Drag the layer to the 2d Layers group above 'elev'
this action will both drape the vector streets on the raster surface, and clip the extent of the much larger streets data to that of the surface. Change the color ramp for a layer:
RMC 'elev'-> Symbology Use the 'Gallery' tab to scroll through the available ESRI-provided ramps. Choose one of the color ramps
Change the background color (useful for enhancing visualization).
RMC 'Scene' in the 'Contents' pane->Properties ***May be Map_3d instead of scene*** Go to the 'General' tab Choose the black color patch from the color palette drop-down menu Click 'OK'.
Adjust the direction (azimuth and altitude) and contrast of the light applied the surface:
Reset the background color to white (refer to previous task) In the 'Contents' pane, under 'Elevation Surfaces', click 'Ground' The 'Elevation Surface' contextual tab set appears on the ribbon In the 'Surface' group, Check 'Shade relative to light position' RMC 'Map_3d' in the 'Contents' pane->Properties Go to the 'Illumination' tab Reposition the light source by changing altitude and azimuth Click 'OK'
Adjust the lighting contrast:
RMC 'Map_3d' in the 'Contents' pane->Properties Go to the 'Illumination' tab Use the contrast slider to adjust contrast value Click 'OK'