Test expose #42
Test expose #42
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Heh for what it's worth this is a fairly unique domain of JS involving Emscripten and WebAssembly so it's not necessarily straight foward. If you're interested in learning more about Emscripten and interacting with the Module code you can read up on some docs here. Having said that it looks like the arrays being passed in need to be converted into pointers before being passed into the function. Using the simpler // ...
// write the array to pointer memory
const r_ptr = Module._malloc(DOUBLE_SIZE * 9);
for (let i = 0; i < 9; i++) {
Module.setValue(r_ptr + DOUBLE_SIZE * i, R[i], DOUBLE_TYPE);
}
Module.ccall(
'm2q_c',
null,
/* ConstSpiceChar from, ConstSpiceChar to, SpiceDouble et, SpiceDouble rot */
[ 'number', 'number'],
[ r_ptr, quat_ptr ],
);
// ...Once this is working would you be able to add a test or two for the new functions (or at least provide some input and expected results) using the MSL kernels included in the repo so we can make sure the results all look correct? Thanks for helping with the project! |
| return rot ; | ||
| } | ||
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| m2q(R) { |
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It looks like the m2q function is just used for extracting a quaternion from a rotation matrix -- I'm hesitant to think this should be included in the main project considering it doesn't do a lot with kernels and there are other simpler choices for doing 3d math in javascript like glMatrix. What do you think? What are you planning to use the function for?
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Hello,
I am trying to expose some cspice functions (spkezr, pxform and m2q) that I need for developing our application using timecrafts compiled library but I am having problems trying to use the same approach as for other functions. I am afraid I am not javascript expert, so I hope you could find the time to look at this. My request was already mentioned in this issue #25.
Many thanks in advance and best regards.
Alfredo