wehub-resource-sync
64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
//! Update custom user-defined values over time, in a single operation.
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//!
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//! This is semantically equivalent to the `any_values_row_updates` example, albeit much faster.
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#include <rerun.hpp>
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#include <arrow/array/builder_primitive.h>
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#include <cmath>
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#include <cstdio>
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#include <numeric>
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arrow::Status run_main() {
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const auto rec =
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rerun::RecordingStream("rerun_example_any_values_column_updates");
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rec.spawn().exit_on_failure();
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constexpr int64_t STEPS = 64;
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std::vector<int64_t> times(STEPS);
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std::iota(times.begin(), times.end(), 0);
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std::shared_ptr<arrow::Array> arrow_array;
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arrow::DoubleBuilder sin_builder;
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for (int64_t i = 0; i < STEPS; i++) {
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ARROW_RETURN_NOT_OK(
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sin_builder.Append(sin(static_cast<double>(i) / 10.0))
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);
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}
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ARROW_RETURN_NOT_OK(sin_builder.Finish(&arrow_array));
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auto sin =
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rerun::ComponentBatch::from_arrow_array(std::move(arrow_array), "sin")
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.value_or_throw();
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arrow::DoubleBuilder cos_builder;
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for (int64_t i = 0; i < STEPS; i++) {
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ARROW_RETURN_NOT_OK(
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cos_builder.Append(cos(static_cast<double>(i) / 10.0))
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);
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}
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ARROW_RETURN_NOT_OK(cos_builder.Finish(&arrow_array));
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auto cos =
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rerun::ComponentBatch::from_arrow_array(std::move(arrow_array), "cos")
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.value_or_throw();
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rec.send_columns(
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"/",
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rerun::TimeColumn::from_sequence("step", std::move(times)),
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sin.partitioned().value_or_throw(),
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cos.partitioned().value_or_throw()
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);
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return arrow::Status::OK();
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}
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int main(int argc, char* argv[]) {
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arrow::Status status = run_main();
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if (!status.ok()) {
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printf("%s\n", status.ToString().c_str());
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return 1;
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}
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return 0;
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}
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