Trying to populate string data array using API

Forum|Forum|9 years ago
July 27, 2016
3 replies
8937 views

I want to pass a table of data into Mathcad.

Each row of data is like fluid_description (string), fluid_density (real value with units), fluid_viscosity (real value with units)

I have succeeded in sending a matrix of numerical values with and without units, and also individual string values. But can't seem to find how to send a matrix of strings.

Also worth mentioning that whilst for now I'm using the API, in future it would be intended to migrate this to Mathcad gateway.

Any advice welcome.

Statistics_Analysis

Best answer by StuartBruff

Mathcad Prime (3.1) or Mathcad 15?

Can you write the data to a text file (or Excel) and then use Mathcad's file I/O functions to get the data?

Stuart

M

MJG

1-Visitor

I don't have an answer for you, but as a workaround, could you just populate separate arrays and then combine them in Mathcad?

A

acarter-2

Author

1-Visitor

Whilst researching this problem, I also found Mathcad Tables, which are pretty cool and present the data nicely.

But again, I don't see any API method for setting Table rows. However I was able to insert a matrix into a table, which kind of works ... except still no possibility that I can find to create an array of strings.

[DispId(18)]

int SetMatrixValue(string aliasArg, IMathcadPrimeMatrix valueArg, string unitsArg);

[DispId(11)]

int SetRealValue(string aliasArg, double valueArg, string unitsArg);

[DispId(36)]

int SetSExprValue(string aliasArg, string sexpressionArg);

[DispId(33)]

int SetStringValue(string aliasArg, string valueArg);

The value parameter for SetMatrixValue is data type IMathcadPrimeMatrix, which has only one value setter method, and this demands value as double:

[DispId(3)]

int SetMatrixElement(int rowIndexArg, int columnIndexArg, double valueArg);

Thanks for the suggestion, I am at this stage convinced there is no way to do what I need, the workaround suggested will work if I abandon the string descriptions.

Of course I could send the string description as an integer array of ASCII codes, and convert it in Mathcad... but that's just crazy!

M

MJG

1-Visitor

I don't think many people have gotten much use from Prime's API, so I wouldn't expect much help on this site (though, feel free to post just in case). I've only done a little playing with Prime's API to verify it can do what I need (simple import of a list of variables), but I've decided to stick with Mathcad 15 for now. Additionally, my current computer only has Prime 1.0, so I can't even look much up. Sounds like you've got a plan in mind - good luck!