GetGTXCensusBlockGrp returns a single-character census block group from the GeoTAX database. The block group is a cluster of census blocks that make up the smallest area for which the Census Bureau provides data.
Syntax
GetGTXCensusBlockGrp (&stGTXAddr, &cGeoBlock, lFixedString);Parameters
GEOTAXADDRESS stGTXAddr; /* input address information (see below) */
char* cGeoBlock; /* Single character Census block group */
long lFixedString; /* String termination flag */Input Structure
|
Elements |
Data Type |
Description |
|---|---|---|
|
szAddrLine1 |
char[100+1] |
Primary address line. |
|
szAddrLine2 |
char[100+1] |
Secondary address line. |
|
szAddrLine3 |
char[100+1] |
Tertiary address line. |
|
szCity |
char[50+1] |
City Line. |
|
szState |
char[50+1] |
State line. |
|
szZIP |
char[9+1] |
9-digit ZIP Code. |
Output Structure
|
Elements |
Data Type |
Description |
|---|---|---|
|
cGeoBlock |
char |
1-character Census Block Group code |
Code Example
#include "geotax.h"
GEOTAXADDRESS stGTXAddr;
char cGeoBlock;
long lFixedString;
long lReturnCode;
.
.
.
strcpy (stGTXAddr.szAddrLine1, "4200 Parliament Place");
strcpy (stGTXAddr.szAddrLine2, "Suite 600");
strcpy (stGTXAddr.szAddrLine3, " ");
strcpy (stGTXAddr.szCity, "Lanham");
strcpy (stGTXAddr.szState, "MD");
strcpy (stGTXAddr.szZIP, "207061844");
lFixedString = 0;
lReturnCode = GetGTXCensusBlockGrp(&stGTXAddr, &cGeoBlock, lFixedString);
if (lReturnCode == GTXAPI_SUCCESS)
printf ("Output census block group code is: %c\n ",cGeoBlock);