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Congressional Communities
  -- tools and data to develop Congressional Communities.

Congressional Communities (CCs) are geographic subdivisions of Congressional Districts (CDs). CCs are places of population concentration having a local identity -- characteristics more of that locale than the CD overall, that might be an entire state. A congressional district of 700,000 population might subdivide into 15-to-25 CCs. Stakeholders like yourself can develop CCs using tools and data described in this section.

This section is designed to support your software and data needs to develop Congressional Communities. See the Congressional Communities main page ( for more information about the overall program. Here, we focus on Geographic Information Systems (GIS) tools and data and how to use them to develop CCs.

In general, the CCs are developed by the selection of a set of contiguous Census block groups. This process is accomplished by using the visual/mapping tool CV XE GIS and a ready-to-use GIS project having the requisite data. A set of block groups are selected and assigned a Congressional Community Number (CCN). More about this below.

  VDA Congressional Community Mapping also Available Using VDA Web GIS
  01 Desktop GIS Setup
  02 Getting Started
  03 Using the Layer Editor; Managing Layers
  04 Creating CCs for a Specific CD
  05 Orienting the View with ZIP Codes and City/Place Layers
  06 About the GIS Project
  07 Using the Find Shape Feature - Zoom to a CD
  08 Adding Layers to the GIS Project
  09 Notes, Management & Updates
  10 Demographic-Economic Characteristics of Congressional Districts
  11 Developing New CC GIS Projects

Congressional Communities & VDA Web GIS
The following application illustrates how anyone can locate their Congressional Community using the Visual Data Analytics (VDA) Web GIS. There is nothing to install and only a Web browser is required.

Click start VDA to begin.
Sign-up or Login as prompted.
Open the "Situation & Outlook" project from the available project form.
With the project open, click Tools>Find Address, use Option 2.
Enter the address "307 Princeton Dr, Costa Mesa, CA, 92626" in the address box (no quotes, 3 commas required).
Click Find; the Map Window refreshes with a zoom to that address and shows a blue triangle marker.

Check layers on/off in the Legend Panel:
  .. check off "County %PopChg 10-20"
  .. check on "Congressional Community"
  .. check on "Cong Community"
  .. check off "World by Country"
  .. check on "OpenStreepMaps Tile"

Click the Zoom-out button (below Map Window) three times.
See in the map view that this address is in CC 0648007 (State 06, CD 48, CC 007).

See the CC in context of the CD 48 ...
Click the Zoom-out button (below Map Window) three times.
In the Legend Panel, check on the "Cong Dist Bold" layer.
The view should be similar to the following graphic.

This ends the illustrative VDA Web GIS application.
Consider attending a VDA web session (every Thursday) for additional guidance; viewing other options.

CV XE GIS Congressional Communities CV XE GIS Start-up View
The following graphic shows California 117th Congressional District 48 (see label by pointer) in context of custom defined Congressional Communities shown with colored fill patterns. Use the GIS project (details below) to create Congressional Communities for Congressional District of interest. Label areas as desired. Add other layers. Add your own data.

1. Setup .. goto top
Run the two installers to set up the software and data on your computer.

1.1. Install CV XE GIS Software .. requires Windows computer with Internet connection
If not previously installed, run CV XE GIS installer
If previously installed, run CV XE GIS update if your version dated before the date specified at the top of the TOC
.. use all default settings

1.2. Install Congressional Communities GIS Data .. requires Windows computer with Internet connection
See update date specified at the top of the TOC
. Reinstall if you have an older version. The installer will replace the existing files.
Requires ProximityOne CV XE GIS to be installed .. see above
Review these notes before running the data installer.
Run Congressional Communities Data Installer .. user ID required
.. use all default settings

At the completion of the data installation, the start-up view displayed is similar to the graphic shown above

Backup. After the data installation is complete, the c:\cc folder will occupy approximately 1.2GB and include approximately 70 files.

1.3. Modify the CV XE GIS Start-up Configuration File
To create a CC and use most features of the CV XE GIS software, you will need to add your UserID to the CV XE GIS configuration start-up file. With CV XE GIS running, enter your UserID in the Key field as described here. Note that the UserID/Key is case sensitive and that you must save the settings to register the UserID.

1.4. Backup
The c:\cc folder now occupies approximately 1.2GB and includes approximately 70 files.
Consider copying this folder to a dedicated USB flash drive, so you can easily replace part or all of it.

1.5. Starting and Stopping CV XE GIS
Start the CV XE GIS software using the desktop icon. A session can be ended at any time. Exiting CV XE GIS without saving the current project will result in no changes to the project being saved. When saving, do not save your project as c:\cc\cc1.gis. Use a different name for your work; File>Save Project As c:\cc\cc2.gis.

2. Getting Started .. goto top

2.1. CV XE GIS Software Navigation Basics
Refer to the CV XE GIS User Guide for information on using the software.

Viewing the CV XE GIS display/form showing the c:\cc\cc1.gis project (view shown above)
... the form view shows a main menu bar and toolbar at top of form
... a map window showing the map/geography
... a legend panel at left map window

The legend panel shows several layers. Layers checked on are showing in the map window.

Change to a type of navigation tool (pan/drag, zoom) by clicking corresponding button on toolbar.

2.2. Select Congressional District of Interest and Save GIS Project .. an example
  • Navigate to a congressional district of interest (VA08 aka 5108)
  • Change layer attributes using Layer Editor.
  • Use File>Save As on the Main menu bar to save the new GIS project; name it c:\cc\cc_va08.gis

3. Using the Layer Editor; Managing Layers .. goto top
Imagine a pie made of layers. In a simple case, there is a bottom crust, filling and top crust. GIS project layers are analogous, but in this case the layers correspond to typically shapefiles. When a layer in the legend panel is checked on, that layer shows in the map window. The standard CC GIS project (cc1.gis) layers are described in a related section below.

This section. Using the Layer Editor; Managing Layers, has two subsections:
- 031 Using the Layer Editor.
- 032 Using the File>LayerSettings feature.
These operations are described below.

3.1. Using the Layer Editor
The Layer Editor is a feature of the CX XE GIS software used to manage layer attributes. Start the Layer Editor by dbl-clicking a layer name in the legend panel; the Layer Editor form appears. The following graphic shows the layer editor form. In this example, the layer editor is used to change the 115th Congressional District shown with the bold boundary. Using the Section tab, a query is placed on the U.S. by CD115 layer setting the GEOID field to the value 0647.

Clicking the OK button on the layer editor form (form closes), dragging the map "up" and unchecking the CA CD115 and CA BGs layers in the legend panel, the following view appears.

This might be an initial step to develop CCs in the CA 47th congressional district.

Saving the GIS Project
Making a modification to a layer using the layer editor will only be saved if the GIS Project is saved. Saving a GIS project is done by using the File>Save or File >Save As option on the main menu bar. If File>Save is used, the exiting project that is open will be saved with all current settings. It is recommended that the file c:\cc\cc1.gis, the project file distributed with the installer, never be saved with that project file name.

3.2. Using the File>LayerSettings Feature
For Congressional Communities (CCs) applications, where many block groups are assigned to a CC ... and there are many CCs in a congressional district (CD), the CV File>LayerSettings feature can be a time saving alternative to using the Layer Editor. The LayerSettings operates on a selected project layer. For the CC projects, it is assumed this is a CA BG layer *that has no existing sections* but does have coded CCN values. The CC2.GIS project is the same as the CC1.GIS project except that the CC2.GIS project (provided with the CC data installer) includes an additional CA BG layer. You should only use the CC2.GIS project to examine/demonstrate how the LayerSettings operation is used. Normally, you would use the CC1.GIS project and use the US BGs layer in that project.

Layer colors and other visual attributes are properties of the GIS project and not individual layers.

With CV running and the CC2.GIS project (provided with the CC data installer) open (use File>Open>Dialog), use File>LayerSettings to start the operation. The LayerSettings form appears as shown below. To arrive at this view, these following steps were performed when the form opened:
1. Using the layer selection dropdown at the top of the form,
    .. select the layer named CA BGs CC2
2. Set the name of the output (new) GIS project file to be created (c:\cc\cc2rev.gis in this case).
3. Click the Load Layer Section Settings File button to load/populate the grid as shown.
    .. select the file c:\cc\cc2.xls and the grid populates.
The final step is to click the Run button that generates the new project files.

About the Layer Sections Settings File
The Layer Sections Settings File is an Excel prepared by the user. The sample file "CC2.XLS" is provided with the CC data installer. There is a header row and a row for each CCN in the CD CC set. The file contains a column for the following:
- AreaColor .. CC polygon fill pattern color code
- OutlineColor .. CC polygon outline color
- OutlineStyle .. CC polygon outline style (CLEAR means no outline will be shown).
- LegendCaption .. Legend text shown in the legend panel (same as Query text in the sample file)
- Query .. Query text; SQL-like structure
- Visible status .. is this section to be visible or not? YES or NO
- Section# .. section number; no value for first section

Color codes used in the first 2 columns are "Tcolor" codes. The scroll section at right provides a list of color codes and color samples. Note that a tcolor code can be copied from the color palette and pasted into the Layer Section Settings grid. The Tcolor code is 7 characters in length starting with the $ symbol. Try to limit the number of colors to four and choose lighter colors.

When the Run button is clicked, the new GIS file is created with the settings in the grid. This enables the user to easily examine alternative color selections.

4. Creating CCs for a Specific CD .. goto top
A Congressional Community (CC) is generally a set of contiguous block groups (BGs) within a Congressional District (CD). There are typically several CCs comprising a CD, ideally fully exhausting the CD area. CCs will normally be compact and adjacent to other CCs within the CD. Ideally, there are no unassigned BGs within a CD. CCs should not overlap. A BG is assigned to only one CD. On the "edges" of CDs a BGs will often overlap a CD boundary.

Two Methods of Creating CCs.
There are two ways to create CCs:
- 041 Method 1, uses the Select Tool: select individual BGs and assigning them to a CC.
- 042 Method 2, uses the Site Analysis Tool, assign BGs intersecting with a circular area to a CC.
These two methods are described below.

4.1. Creating CCs Using the Select Tool .. goto top
Method 1, using the Select Tool, involves selecting individual BGs and assigning them to a CC is reviewed below. This subsection reviews key concepts and should be reviewed even if you mainly use Method 2.

The pointer in the CC GIS project start-up view (see map above) is near the intersection of two CCs: 10013 and 10015. These CCs are color-coded gray and green as shown in the legend panel at left of the map window.
.. a zoom-in view ..
The following graphic shows a zoom-in to those CCs. The US BG (U.S. by block group) layer has been checked on and appears with a 50-percent transparency and red boundaries. The pop-up mini profile appears when a geographic object or shape (in this case a BG area) for the active layer is clicked with the select tool on. This mini-profile shows attributes for the BG where the pointer is located. We can use the mini-profile to set the CCN value for the BG.
.. using the mini-profile ..
The mini-profile shows that this BG has GEOID 060590630103. This 12 character code uniquely identifies this BG among all other US BGs. The mini-profile also shows that the ACS 2016 population estimate is 2,741 and that no CCN (Congressional Communities code) has been set (the value is showing as empty, null.

.. assigning a CCN code to a BG ..
Note that in the above view, CCN codes are 5 characters, going forward we are using a 7 character code.
Once a BG is selected (using the mouse/select tool), a CCN code can be assigned using the mini-profile.
With CV XE GIS running and having the above view, proceed as follows:
- Check the Edit enabled checkbox on.
- Click in the cell to the right of the CCN.
- Enter a CCN code .. see below.
- Click the OK button.
- Repeat this for a set of BGs relevant to this CC, using the same CC code for each.
- Click the Save Layer button -- this is a permanent save operation; use caution. See notes below.
- Done, this one or set of BGs has now been assigned this CC code; this CC may now be set to a color.

Notes about CCN codes
- CCN codes are 7-character codes.
- CCN codes are comprised of the 4-character CD code plus a 3 character CCN suffix value that you assign.
- CCN codes should start with the 4-character CD code, like 0648 for CD 48 in California.
- it is recommended that CCN suffix codes be of the form 001 -- always 3 numeric characters.
    the full CCN code in this example would be 0648001, a second might be 0648002.
- a CCN suffix sequence is not required but suggested; do not reuse a CCN code.
- CCN codes are unique with in a CD.

Notes about using the mini-profile operations to modify a layer/shapefile.
- when the Save Layer button is clicked, the layer/shapefile dbf is permanently updated/modified.

4.2. Creating CCs Using the Site Analysis Tool .. goto top
Method 2, using the Site Analysis Tool, assign BGs intersecting with a circular area to a CC.

Start the CV Site Analysis (SA) tool using the Analytics>SiteAnalysis. When started, CV will automatically open the CC1.GIS project (whatever GIS project name is specified in the CV Start-up settings). The SA view is similar to standard project view with a few differences.
- the legend at left has two new temporary layers shown at the top.
- a GIS project cannot be saved when using SA.
- at the right of the map window are two grid panels.
- the toolbar has modified operations.
See more details and examples in the CV User Guide.
The SA start-up view appears as shown below with these additional steps to get to following display:
- the US BGs layer is checked on (and displays in map window).
- the US BGs layer is clicked once and the panels at right of map window are populated.
  .. if the US BGs layer is doubled clicked, the layer editor opens ... close it.
- the field named GEOID in the upper right panel is dbl-clicked.
  .. this results in the field GEOID being selected as the "selection geocode";
  .. GEOID displays on the status bar below map window.

Proceeding, to get to the next view, the following steps were performed from the above view:
- using the Layer Editor, the US BGs layer transparency was set to 50% (so the layer can be "seen through").
- the zoom button was clicked on the toolbar, changing the mouse operation to zoom.
- the zoom by window tool was used to navigate the view to a similar BG set used in the Method 1 above.
  .. note the view includes all of those BGs in CC "10013".
- the upper scroll section was scrolled so that "ACS1216POP" could be seen and clicked ONCE.
  .. dbl-clicking selects the field as the "selection geocode" - which has already been done.
  .. ACS1216POP contains the total population by BG based on the ACS 2016 5-year estimates
  .. with this field selected, the sum of that field will appear in the lower right grid for BGs selected.
- "ready to go", the next steps are to select the BGs for this CC.
  .. the next steps are nit-picky and can be frustrating to get the process down.
  .. if you have problems, click the Reset button (upper left) and start over.
  .. click the Select button in the toolbar.
  .. we want to select all of the gray colored BGs.
  .. verify the "Select" button has been clicked on the toolbar.
  .. left click the mouse where shown in view, hold mouse down and drag your circle to where circle shown in view.
  .. release mouse button; a prompt will appear asking for the name of the CC BG set being created.
  .. enter the name as shown in screen; click OK
  .. BGs intersecting with the selection circle are now determined.
  .. left click the mouse where shown in view, hold mouse down and drag your circle to where circle shown in view.
  .. release mouse button; a prompt will appear asking for the name of the CC BG set being created.
  .. enter the name as shown in screen; click OK .. selected BGs appear as cross-hatched.
  .. see in lower right grid that 8 BGs have been selected with population 12,238

Continue the process of selecting BGs with new selection circles. Each time prompted, "Add to existing?" reply Yes. At the end of the process, there will be 25 BGs with approximate 33,000 population. If satisfied with this CC, Click the View File button at right of map window. All selected BGS for this CC are shown in the following view.

When the View File button is clicked, the dBrowse window opens; open the file c:\cc\1\0648013.dbf (name used at beginning of process). The 25 selected BG records are displayed in the grid as shown below. To the right of the AssignField button, change the edit box field name to CCN and the edit box value to 0648013. Then click the AssignField button. All of these BGs have been assigned to this CC.

For any given CD, there would be 15-25 such files developed, one for each CC. These files may be merged (use Database>dBMerge) with a US BGs shapefile, integrating the CC code into the shapefile for use in mapping and geospatial analysis.

4.2.1. Managing CC DBF Developed Using the Site Analysis Tool .. goto top
Using the Site Analysis (SA) tool, CC DBFs (dBase files) will have been created as described above. In the case of using a GIS project focused on Texas CD 18, all files would be located in the folder c:\cc\cctx18. The name of the GIS project would be c:\cc\cctx18\cctx18.gis. You might have created five CCs using SA named in the manner:
  .. try this initially with only two CCN DBF files.
  c:\cc\cctx18\4818001.dbf .. with CCN code 4818001 added to CCN field using dBrowse AssignField
  c:\cc\cctx18\4818002.dbf .. with CCN code 4818002 added to CCN field using dBrowse AssignField
  c:\cc\cctx18\4818003.dbf .. with CCN code 4818003 added to CCN field using dBrowse AssignField
  c:\cc\cctx18\4818004.dbf .. with CCN code 4818004 added to CCN field using dBrowse AssignField
  c:\cc\cctx18\4818005.dbf .. with CCN code 4818005 added to CCN field using dBrowse AssignField

To integrate these data into the US by BG shapefile, proceed as follows:
  • Close any open project.
  • Combine the CC DBF files into a new file named c:\cc\cctx18\4818group.dbf
    - Copy c:\cc\cctx18\4818001.dbf to the new file named c:\cc\cctx18\4818group.dbf
    - Use dBrowse to open c:\cc\cctx18\4818group.dbf.
      .. Use the dBrowse Import button to progressively the other 4 CCN DBFs.
  • Use dBMerge to merge the codes from c:\cc\cctx18\4818group.dbf
      into c:\cc\cctx18\cb_2016_us_bg_500k_cc1.dbf.
    - with the dBMerge form open, proceed as follows:
      .. Open File 1: c:\cc\cctx18\cb_2016_us_bg_500k_cc1.dbf
      .. Open File 2: c:\cc\cctx18\4818group.dbf.
      .. Click Create button.
      .. Move all File 1 fields, except CCN, to the output file.
      .. Move only File 2 field CCN to the output file.
      .. Verify the settings.
      .. Click the Merge button.
    - the merge process is complete; Open the project c:\cc\cctx18\cctx18.gis.
  • Open the project c:\cc\cctx18\cctx18.gis open.
    - Use the Layer Editor to set a section to show each CCN code as a color/pattern.
    - the BGs that have been CCN coded now show in the map view.

5. Orienting the View with ZIP Codes and City/Place Layers .. goto top
The U.S. by ZIP Code layer is shown right above the U.S. by BG layer in the legend panel. This ZIP Code geography is based on the ZIP Code Tabulation Areas. See the related ZIP code area interactive tables. It is easy to see that the BG focused on in the above section is located in ZIP code area 92660.

Cities/Places The California by city/place layer is shown two layers below the U.S. by BG layer in the legend panel. See related City/Place interactive table. Using the layer editor, a query was placed on the California places layer; Newport Beach is shown with a blue diagonal cross pattern. It is easy to see that the BG focused on in the above section is located in Newport Beach.

6. About the CC GIS Project -- Files, Structure and Content .. goto top
The GIS project is a text file itself that identifies layers, mainly shapefiles and related settings, that are used in the project by the GIS software. The GIS project c:\cc1.gis as installed includes ayers shown in the following table.
Layer   NameCaptionPath/File
1   States2StatesC:\cc\cb_2016_us_state_500k.shp
2   US CountiesCountiesC:\cc\cb_2017_us_county_500k_cc1.shp
3   US Primary RoadsUS Primary RoadsC:\cc\tl_2017_us_primaryroads.shp
4   US CD115US CD115C:\cc\cb_2017_us_cd115_500k_cc1.shp
5   US ZIPUS ZIPsC:\cc\cb_2017_us_zcta510_500k_cc1.shp
6   US BGsUS BGsC:\cc\cb_2016_us_bg_500k_cc1.shp
7   CA PriSec RoadsCA Primary RoadsC:\cc\tl_2017_06_prisecroads.shp
8   CA 06059 RoadsCA Orange Co RoadsC:\cc\tl_2017_06059_edges.shp
9   CA PlacesCA Cities/PlacesC:\cc\cb_2017_06_place_500k.shp
10   CD115dCA CD115C:\cc\cb_2016_us_cd115_500k_mhi_ca.shp
11   CA ZIPsCA ZIPsC:\cc\cb_2017_us_zcta510_500k_ca.shp
12   CA CCN BGsCA BGsC:\cc\cb_2017_06_bg_500krev.shp
13   CA BlocksCA BlocksC:\cc\tl_2010_06_tabblock10.shp
14   CA TractsCA TractsC:\cc\cb_2017_06_tract_500k.shp
15   tractccn1CA CCN TractC:\cc\cb_2015_us_tract_500k_acs15itemset2_ca.shp
16   Tracts2CA $MHI by TractC:\cc\cb_2015_us_tract_500k_acs15itemset2_ca_noccn.shp
17   BaseLayerOSM TilesC:\cc\mapquest openstreetmaps tiles.ttkwp
18   States1States2C:\cc\cb_2016_us_state_500k.shp

7. Using the Find Shape Feature - Zoom to a CD .. goto top
Use the Zoom-to-Shape/Find Shape feature (binoculars icon on toolbar) to locate and zoom to a shape/geographic object based on a field value. In the following view, the find shape feature is used to locate a Congressional District (CD). In this example, the U.S. by CD115 layer is used to locate and zoom to a particular CD (CD 4818 -- Texas CD 18). The procedure can be used with any layer (except the "Base Layer" which is not a shapefile). When the binoculars icon is clicked, the Find Shape/Object form appears. Make setting changes to perform the find for CD 4818:
- Choose the layer US CD115
- Select Full Extent radiobutton
- Choose the Field GEOID - Set the Value to 4818 -- the FIPS code for Texas is 48
    ... find the state FIPS code in the Code column in the State Trends Table .. all codes use lead zeros as applicable.
- Check the Zoom to first match checkbox
.. then click the Find button

The search is made and the Find Shape/Object form can be closed. The map window will now show the highlighted shape (CD 4818) as illustrated in the following view.

The yellow fill pattern is used to show the selected shape(s). The highlight color can be removed by clicking Revertall button on the Find Shape/Object form or the selecting the layer of interest in the legend panel and then clicking the main menu View>RevertAll.

8. Adding Layers to the GIS Project .. goto top
Use the CV XE GIS File>GeoGateway to add other shapefiles.
Most users will want to add layers including detailed streets (county-based files), cities (state-based files) and census block files (state-based files). Other shapefiles may be of interest such as American Indian reservations, military installations, school districts and yet others.
... under development

9. Notes, Management & Updates .. goto top
All Congressional Communities data are located in the folder c:\cc. Recommendations:
  • store any new project files in this folder.
  • copy this folder to a backup device whenever significant changes are made to files in the folder.

CC Data Installer & CV XE GIS Start-up Configuration File
When the CC Data Installer is run, the CV XE GIS start-up configuration file (managed using File>Settings> is replaced with the CC specific configuration file.

The CV XE GIS Installers and CC Data Installer were updated on the date specified at the top of the TOC
If you have already installed the software and data, you should rerun the installers. See Setup section

10. Demographic-Economic Characteristics of Congressional Districts .. goto top
  • General Demographics
  • Social Characteristics
  • Economic Characteristics
  • Housing Characteristics

Developing New CC GIS Projects .. goto top
CC GIS projects are developed for individual congressional districts. A new CC GIS project is developed using the existing GIS project provided with the installer. It may be opened at c:\cc\ccbase.gis. This project should not be saved using the same name.

With CV XE GIS running, use File>Open>Dialog> to open c:\cc\ccbase.gis. The view will appear as shown below.

The following set of steps illustrate how to create the GIS project c:\cctx18\cctx18.gis to develop Congressional Communities for Texas Congressional District 18.
Create the folder c:\cc\cctx18.
If the folder already exists, rename it, like c:\cc\cctx18org.
  • Use File>Package GIS Project; enter c:\cc\cctx18\ then click the ZIP to button.
  • Unzip the file c:\cc\cctx18\ to the folder c:\cc\cctx18\.
  • Using Windows explorer, rename c:\cc\cctx18\ccbase.gis as c:\cc\cctx18\cctx18.gis.
  • Use File>Open>Dialog> to open c:\cc\cctx18\cctx18.gis.
    .. this view appears as shown above; but now all relevant files are located in folder c:\cc\cctx18

  • Use Layer Editor to modify the layer CD115.
    .. In Interval Settings change GEOID='0648' to GEOID='4818'. Edit other occurrences of 0648 in both intervals.
    .. Click OK and close LayerEditor.
  • Navigate (Pan/Drag) to TX CD 18
  • Use File>Save, saving the current version.

  • Add these new layers using File>GeoGateway:
    .. TX Primary roads
    .. TX Harris County Roads
    .. TX Cities/Places
    .. Note: the SaveAs folder defaults to c:\cc\1\
      .. change c:\cc\1 to c:\cc\cctx18 .. all files are save to that folder.
    .. use layer editor to rename each layer with the above names.

  • In the legend panel, slide these new layers down to where the three corresponding CA layers are located.
  • Delete the three CA layers.
  • Use File>Save, saving the current version.

  • Use File>Export Shapefile to create a Texas only subset shapefile.
    .. Use the input file US BGs (c:\cc\cctx18\cb_2016_us_bg_500k_cc1.shp)
    .. Use the query STATEFP='48'
    .. Click OK button.
    .. Use the input file name c:\cc\cctx18\cb_2016_us_bg_500k_cc1_48.shp

  • Add the TX BG shapefile (c:\cc\cctx18\cb_2016_us_bg_500k_cc1_48.shp) to the project
    .. In the legend panel, slide the layer to right above the US BGs layer.
    .. Use the layer editor to change the fill pattern attributes to match those of the US BGs layer.
    .. Delete the US BGs layer.

  • Use File>Save, saving the current version.
    .. Create an archived backup -- use File>Package GIS Project and click the ZIP to button.
    .. zip to c:\cc\cctx18\

  • The new project c:\cc\cctx18\cctx18.gis is ready for use by you or others. CV XE GIS can optionally be closed.
    .. it is ready to be used by yet another authorized CC user.
    .. the zipped file c:\cc\cctx18\ can be provided to a CC user.
    .. the user can be instructed to unzip to the folder c:\cc\cctx18\.
    .. with CV running, the unzipped file c:\cc\cctx18\cctx18.gis can be started/opened.

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Learn more about accessing and using demographic-economic data and related analytical tools. Join us in a Data Analytics Lab session. There is no fee for these one-hour Web sessions. Each informal session is focused on a specific topic. The open structure also provides for Q&A and discussion of application issues of interest to participants.

Additional Information .. goto top
ProximityOne develops geodemographic-economic data and analytical tools and helps organizations knit together and use diverse data in a decision-making and analytical framework. We develop custom demographic/economic estimates and projections, develop geographic and geocoded address files, and assist with impact and geospatial analyses. Wide-ranging organizations use our tools (software, data, methodologies) to analyze their own data integrated with other data. Follow ProximityOne on Twitter at Contact us (888-364-7656) with questions about data covered in this section or to discuss custom estimates, projections or analyses for your areas of interest.

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