/// <summary>
/// Populates our 'year', 'state', 'summary level', and 'srid' controls,
/// as well as any other "choose from a set" controls that come up.
/// </summary>
protected void PopulateLists()
{
this.cboYear.DataSource = new BindingSource(FormController.Instance.AvailableYears, string.Empty);
this.cboStates.DataSource = new BindingSource(FormController.Instance.AvailableStates, string.Empty);
this.cboSummaryLevel.DataSource = new BindingSource(FormController.Instance.AvailableLevels, string.Empty);
this.cboStates.FormattingEnabled = true;
this.cboStates.Format += delegate(object sender, ListControlConvertEventArgs e)
{
AcsState state = (AcsState)e.Value;
if (state == AcsState.None)
{
e.Value = string.Empty;
}
else
{
e.Value = state.ToString();
}
};
this.cboSummaryLevel.FormattingEnabled = true;
this.cboSummaryLevel.Format += delegate(object sender, ListControlConvertEventArgs e)
{
BoundaryLevels level = (BoundaryLevels)e.Value;
switch (level)
{
case BoundaryLevels.None:
e.Value = string.Empty;
break;
//case BoundaryLevels.counties:
// e.Value = "Counties";
// break;
//case BoundaryLevels.county_subdivisions:
// e.Value = "County Subdivisions";
// break;
case BoundaryLevels.census_tracts:
e.Value = "Census Tracts";
break;
case BoundaryLevels.census_blockgroups:
e.Value = "Census Blockgroups";
break;
}
};
//NOTE! We're doing this initialization in "radioSRIDFromList_CheckedChanged",
//instead of here, this is because it's expensive (we have to read through a whole file)
//so we're shaving a half-second off the init, and moving it to a spot where the user shouldn't notice.
//this.cboProjections.DataSource = new BindingSource(FormController.Instance.AvailableProjections, string.Empty);
}
/// <summary>
/// Helper function for constructing the correct census URL for a particular Boundary Level / State
/// </summary>
/// <param name="level"></param>
/// <param name="stateFips"></param>
/// <returns></returns>
public static string GetRemoteShapefileURL(BoundaryLevels level, string stateFips)
{
string url = string.Empty;
switch (level)
{
case BoundaryLevels.census_blockgroups:
url = Settings.ShapeFileBlockGroupURL + Settings.ShapeFileBlockGroupFilename;
break;
case BoundaryLevels.census_tracts:
url = Settings.ShapeFileTractURL + Settings.ShapeFileTractFilename;
break;
/*
* case BoundaryLevels.county_subdivisions:
* url = Settings.ShapeFileCountySubdivisionsURL + Settings.ShapeFileCountySubdivisionsFilename;
* break;
* case BoundaryLevels.counties:
* url = Settings.ShapeFileCountiesURL + Settings.ShapeFileCountiesFilename;
* break;
*
* case BoundaryLevels.voting:
* url = Settings.ShapeFileVotingURL + Settings.ShapeFileVotingFilename;
* break;
* case BoundaryLevels.zipthree:
* url = Settings.ShapeFileThreeDigitZipsURL + Settings.ShapeFileThreeDigitZipsFilename;
* break;
* case BoundaryLevels.zipfive:
* url = Settings.ShapeFileFiveDigitZipsURL + Settings.ShapeFileFiveDigitZipsFilename;
* break;
*
*
* case BoundaryLevels.states:
* case BoundaryLevels.census_regions:
* case BoundaryLevels.census_divisions:
*/
default:
break;
}
if (!string.IsNullOrEmpty(url))
{
url = url.Replace(Settings.FipsPlaceholder, stateFips);
}
return(url);
}
/// <summary>
/// Downloads the SHAPE FILEs, must be run before initializing the database!
/// Since this will be imported into the database!
/// </summary>
/// <returns></returns>
public bool CheckShapefiles()
{
BoundaryLevels[] shapeFileLevels = new BoundaryLevels[] {
BoundaryLevels.census_blockgroups,
BoundaryLevels.census_tracts,
//BoundaryLevels.county_subdivisions,
//BoundaryLevels.counties,
/*
BoundaryLevels.census_regions,
BoundaryLevels.census_divisions,
BoundaryLevels.states
BoundaryLevels.zipthree,
BoundaryLevels.zipfive,
*/
};
foreach (BoundaryLevels level in shapeFileLevels)
{
if (level == BoundaryLevels.None)
continue;
string url = ShapefileHelper.GetRemoteShapefileURL(level, this.StateFIPS);
string localPath = Path.Combine(this.WorkingPath, Path.GetFileName(url));
string name = level.ToString();
if (!DownloadAndImportShapefile(url, localPath, name, name))
{
return false;
}
}
return true;
}
/// <summary>
/// Helper function for constructing the correct census URL for a particular Boundary Level / State
/// </summary>
/// <param name="level"></param>
/// <param name="stateFips"></param>
/// <returns></returns>
public static string GetRemoteShapefileURL(BoundaryLevels level, string stateFips)
{
string url = string.Empty;
switch (level)
{
case BoundaryLevels.census_blockgroups:
url = Settings.ShapeFileBlockGroupURL + Settings.ShapeFileBlockGroupFilename;
break;
case BoundaryLevels.census_tracts:
url = Settings.ShapeFileTractURL + Settings.ShapeFileTractFilename;
break;
/*
case BoundaryLevels.county_subdivisions:
url = Settings.ShapeFileCountySubdivisionsURL + Settings.ShapeFileCountySubdivisionsFilename;
break;
case BoundaryLevels.counties:
url = Settings.ShapeFileCountiesURL + Settings.ShapeFileCountiesFilename;
break;
case BoundaryLevels.voting:
url = Settings.ShapeFileVotingURL + Settings.ShapeFileVotingFilename;
break;
case BoundaryLevels.zipthree:
url = Settings.ShapeFileThreeDigitZipsURL + Settings.ShapeFileThreeDigitZipsFilename;
break;
case BoundaryLevels.zipfive:
url = Settings.ShapeFileFiveDigitZipsURL + Settings.ShapeFileFiveDigitZipsFilename;
break;
case BoundaryLevels.states:
case BoundaryLevels.census_regions:
case BoundaryLevels.census_divisions:
*/
default:
break;
}
if (!string.IsNullOrEmpty(url))
{
url = url.Replace(Settings.FipsPlaceholder, stateFips);
}
return url;
}
