本文整理汇总了C++中TeDatabasePortal::getProjection方法的典型用法代码示例。如果您正苦于以下问题：C++ TeDatabasePortal::getProjection方法的具体用法？C++ TeDatabasePortal::getProjection怎么用？C++ TeDatabasePortal::getProjection使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类TeDatabasePortal的用法示例。
在下文中一共展示了TeDatabasePortal::getProjection方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: updateDB400To412
bool updateDB400To412(TeDatabase* db, string& errorMessage)
{
// ----- create the datum table
if(!db->createDatumTable())
{
errorMessage = "Error creating the datum table.\n";
errorMessage += db->errorMessage();
return false;
}
// ----- create the SRS table
if(!db->createSRSTable())
{
errorMessage = "Error creating the SRS table.\n";
errorMessage += db->errorMessage();
return false;
}
// ----- populate the datum table with pre-defined datums and ellipsoids
db->populateDatumTable();
// ----- change te_projection table: removed the columns associated with datum
if(!db->deleteColumn("te_projection", "radius"))
{
errorMessage = "Error removing the column radius from te_projection table.\n";
errorMessage += db->errorMessage();
return false;
}
if(!db->deleteColumn("te_projection", "flattening"))
{
errorMessage = "Error removing the column flattening from te_projection table.\n";
errorMessage += db->errorMessage();
return false;
}
if(!db->deleteColumn("te_projection", "dx"))
{
errorMessage = "Error removing the column dx from te_projection table.\n";
errorMessage += db->errorMessage();
return false;
}
if(!db->deleteColumn("te_projection", "dy"))
{
errorMessage = "Error removing the column dy from te_projection table.\n";
errorMessage += db->errorMessage();
return false;
}
if(!db->deleteColumn("te_projection", "dz"))
{
errorMessage = "Error removing the column dz from te_projection table.\n";
errorMessage += db->errorMessage();
return false;
}
// ----- END: change te_projection table: removed the columns associated with datum
// ----- relations
if(!db->createRelation("fk_proj_datum_name", "te_projection", "datum", "te_datum", "name", false))
{
errorMessage = "Error creating foreign key in the projection table.\n";
errorMessage += db->errorMessage();
return false;
}
if(!db->createRelation("fk_srs_proj_id", "te_srs", "projection_id", "te_projection", "projection_id", true))
{
errorMessage = "Error creating foreign key in the srs table.\n";
errorMessage += db->errorMessage();
return false;
}
// ----- populate te_srs table
TeDatabasePortal* portal = db->getPortal();
if(!portal)
{
errorMessage = "Error getting the database portal";
return false;
}
std::string sql = "SELECT te_projection.*, te_datum.radius, te_datum.flattening, te_datum.dx, te_datum.dy, te_datum.dz ";
sql += "FROM te_projection LEFT JOIN te_datum ON te_projection.datum = te_datum.name ";
if (!portal->query(sql))
return false;
while(portal->fetchRow())
{
TeProjection* proj = 0;
portal->getProjection(&proj);
if(proj)
db->insertSRSId(proj, proj->epsgCode());
delete proj;
}
portal->freeResult();
delete portal;
return true;
//.........这里部分代码省略.........