// Create new column
func (rat RasterAttributeTable) CreateColumn(name string, rft RATFieldType, rfu RATFieldUsage) error {
cName := C.CString(name)
defer C.free(unsafe.Pointer(cName))
err := C.GDALRATCreateColumn(rat.cval, cName, C.GDALRATFieldType(rft), C.GDALRATFieldUsage(rfu))
if err != 0 {
return error(err)
}
return nil
}
// Fetch column index for indicated usage
func (rat RasterAttributeTable) ColOfUsage(rfu RATFieldUsage) int {
index := C.GDALRATGetColOfUsage(rat.cval, C.GDALRATFieldUsage(rfu))
return int(index)
}