Hi all,

I want to cast an Eigen::MatrixXi (containing ints) to a matrix containing doubles.

When I do

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myintmatrix.cast<double>()

it yields an

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YOU_MIXED_DIFFERENT_NUMERIC_TYPES__YOU_NEED_TO_USE_THE_CAST_METHOD_OF_MATRIXBASE_TO_CAST_NUMERIC_TYPES_EXPLICITLY

error.
Although the error is quite verbose (kudos to the devs, it's generally helpful), I can't solve it. I tried

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myintmatrix.base().cast<double>()

hoping that would be the cast method of MatrixBase, but I get the same error.

So how can I use an integer matrix as if it contained doubles?

This error means that you are using this matrix in a larger expressions that expects a different type. Just the snippet you showed here is not enough to help you --- the problem is not there. Can you please make a compilable test case?

Thank you! You are right, the problem is not where I thought it would be.
Now I have to check, where the problem lies. Should I be unable to solve it, I'll post back.

EDIT
I found the error: A matrix that should've been MatrixXd was of type MatrixXi. Whoops. Sorry for the noise...