/// <summary>
/// liefert den Offset für einen Objekttyp oder einen negativen Wert
/// </summary>
/// <param name="contenttype"></param>
/// <returns></returns>
public int GetOffset4ObjectType(GarminCore.Files.StdFile_TRE.SubdivInfoBasic.SubdivContent contenttype)
{
for (int i = 0; i < OffsetContent.Length; i++)
{
if (OffsetContent[i] == contenttype)
{
return(OffsetTab[i]);
}
}
return(-1);
}
/// <summary>
/// liefert den Datenblock in RGN bzgl. des SubdivContentBlock in RGN für das Objekt
/// </summary>
/// <param name="contenttype"></param>
/// <param name="idx"></param>
/// <returns></returns>
public GarminCore.DataBlock GetDataBlock4Object(GarminCore.Files.StdFile_TRE.SubdivInfoBasic.SubdivContent contenttype, int idx)
{
GarminCore.DataBlock block = new GarminCore.DataBlock();
block.Offset = SubdivfInfo.Data.Offset;
block.Offset += (uint)GetOffset4ObjectType(contenttype);
switch (contenttype)
{
case GarminCore.Files.StdFile_TRE.SubdivInfoBasic.SubdivContent.poi:
for (int i = 0; i < idx; i++)
{
block.Offset += SubdivData.PointList1[i].DataLength;
}
block.Length = SubdivData.PointList1[idx].DataLength;
break;
case GarminCore.Files.StdFile_TRE.SubdivInfoBasic.SubdivContent.idxpoi:
for (int i = 0; i < idx; i++)
{
block.Offset += SubdivData.PointList2[i].DataLength;
}
block.Length = SubdivData.PointList2[idx].DataLength;
break;
case GarminCore.Files.StdFile_TRE.SubdivInfoBasic.SubdivContent.line:
for (int i = 0; i < idx; i++)
{
block.Offset += SubdivData.LineList[i].DataLength;
}
block.Length = SubdivData.LineList[idx].DataLength;
break;
case GarminCore.Files.StdFile_TRE.SubdivInfoBasic.SubdivContent.area:
for (int i = 0; i < idx; i++)
{
block.Offset += SubdivData.AreaList[i].DataLength;
}
block.Length = SubdivData.AreaList[idx].DataLength;
break;
}
return(block);
}
