Reading string variable data

[guydillen]

Hi,

Hw to read string variable data?

This is my cdl file:

`netcdf test {
dimensions:
station = 9 ;
...
variables:
string station_name(station) ;
...
// global attributes:
...
data:

station_name = "W1", "W2", "W3", "W4", "W5", "W6", "W7",
"W8", "W9" ;

...`

How can I read the string data?

Thanks.

[fhs]

Var.ReadBytes doesn't work? Maybe we need to wrap nc_get_vara_string? PRs are welcome.

[guydillen]

How should I use Var.ReadBytes: it returns an error and takes a byte slice/array?

// ReadBytes reads the entire variable v into data, which must have enough
// space for all the values (i.e. len(data) must be at least v.Len()).
func (v Var) ReadBytes(data []byte) error {
	if err := okData(v, CHAR, len(data)); err != nil {
		return err
	}
	return newError(C.nc_get_var_text(C.int(v.ds), C.int(v.id), (*C.char)(unsafe.Pointer(&data[0]))))
}

[fhs]

I think you need to create a ReadStrings methods that uses C.nc_get_var_string.

func (v Var) ReadStrings(data []string) error

[SergeiMelman]

I think It would be good for Attr as well :

func (a Attr) ReadStrings(data []string) error