Function reassign_context

src/transformations/defmodel.cpp:380–386

Function called by proj_assign_context() when a new context is assigned to an existing PJ object. Mostly to deal with objects being passed between threads.

// an existing PJ object. Mostly to deal with objects being passed between
// threads.
static void reassign_context(PJ *P, PJ_CONTEXT *ctx) {
    auto *Q = (struct defmodelData *)P->opaque;
    if (Q->evaluatorIface.ctx != ctx) {
        Q->evaluator->clearGridCache();
        Q->evaluatorIface.ctx = ctx;
    }
}

PJ *PJ_TRANSFORMATION(defmodel, 1) {
    // Pass a dummy ellipsoid definition that will be overridden just afterwards