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CS 2505 Computer Organization I C07: GIS System in C

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See https://geonames.usgs.gov/domestic/states_fileformat.htm for the full field descriptions.
The type specifications used here have been modified from the source (URL above) to better reflect the realities of
Latitude and longitude may be expressed in DMS (degrees/minutes/seconds, 0820830W) format, or DEC (real

代做CS 2505作业、代写GIS System作业、代写C++编程设计作业、C++实验作业代做
Although some fields are mandatory, some may be omitted altogether. Best practice is to treat every field as if it
Retrieving data for all GIS records matching a given feature name and state
Retrieving data for the unique GIS record matching a given feature ID
Reporting the distance between two features specified by their feature IDs
Displaying the in-memory indices in a human-readable manner; this is purely for debugging purposes and will not
the name of the file containing the search commands to be carried out, and other information described below
the name of the file to which the program will write its output
keep the entries in sorted order as you add them to the array
put all the entries into the array and then sort them
int (*compare)(const void*, const void*));
no GIS record will ever be longer than 500 characters
no line in the command file will ever be longer than 256 characters
the GIS record file and the command file will follow the specified syntax described earlier
VehicleMake make;
char* model; // could also be an enumerated type
uint16_t year;
char* licenseNum;
char* vin;
...
{FORD, "Fiesta", 1978, "LXR 804", . . .},
{GMC, "Safari", 1997, "ZFL 8473", . . .},
...
{CORD, "812 Westchester", 1937, "PAM 445", . . .}
int (*compare)(const void*, const void*));
const Vehicle* pLeft = (Vehicle*) left;
const Vehicle* pRight = (Vehicle*) right;
return ( strcmp( pLeft->model, pRight->model) );
is the latitude of
is the longitude of
is the latitude of
is the longitude of

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转载于:https://www.cnblogs.com/glodwell/p/10706643.html






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