public ICachedVectorData Request(string shpFileName)
{
string identify = CachedVectorData.GetIdenfity(shpFileName);
if (identify == null)
{
return(null);
}
if (_cachedDatas.ContainsKey(identify))
{
_refCounteds[identify]++;
return(_cachedDatas[identify]);
}
else
{
ICachedVectorData data = null;
if (_coordTransform == null)
{
data = new CachedVectorData(shpFileName);
}
else
{
data = new CachedVectorData(shpFileName, _coordTransform);
}
_cachedDatas.Add(data.Identify, data);
_refCounteds.Add(data.Identify, 1);
return(data);
}
}
private IGrid ReadGridFromCacher(int gridNo, out bool isOK)
{
isOK = false;
ICachedVectorData cache = GlobalCacher.VectorDataGlobalCacher.GetData(_fileUrl);
if (cache == null)
{
return(null);
}
if (_cacheIdentify == null)
{
_cacheIdentify = cache.Identify;
}
Envelope evp = _gridStateIndicator.GetEnvelope(gridNo);
Feature[] features;
if (cache.CoordType == enumCoordinateType.Geographic)
{
features = cache.GetFeatures(evp);
isOK = true;
return(new Grid(gridNo, evp, features));
}
else if (cache.CoordType == enumCoordinateType.Projection)
{
_featureClass.RuntimeProjecter.Project(evp);
features = cache.GetFeatures(evp);
if (features != null)
{
foreach (Feature fet in features)
{
fet.Projected = true;
}
}
IGrid grid = new Grid(gridNo, evp, features);
grid.CoordIsConverted = true;
isOK = true;
return(grid);
}
return(null);
}
