mirror of
https://github.com/SpartanJ/eepp.git
synced 2026-10-18 19:43:24 +03:00
Martín Lucas Golini
7a66563114
Implement chart axes, line series, data sources, pixel-bucket reduction, tooltips, and pan, zoom, fit, and live-follow interactions. Register Chart as a default UI widget and expose the new APIs through ui.hpp. Add a responsive four-chart example, benchmarks, and unit tests. Reuse rendering buffers and fix ring-buffer rendering and hover tooltip behavior.
54 lines
2.0 KiB
C++
54 lines
2.0 KiB
C++
#include "../tests/unit_tests/utest.hpp"
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#include <cmath>
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#include <eepp/core/string.hpp>
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#include <eepp/system/clock.hpp>
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#include <eepp/ui/charts/chartreduction.hpp>
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using namespace EE;
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using namespace EE::UI::Charts;
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UTEST( Benchmark, ChartReduction ) {
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for ( size_t count : { 10000u, 100000u, 1000000u, 5000000u } ) {
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std::vector<ChartPoint> points;
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points.reserve( count );
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for ( size_t i = 0; i < count; ++i ) {
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const double x = static_cast<double>( i );
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const double y = std::sin( x * 0.003 ) + ( i % 997 == 0 ? 5.0 : 0.0 );
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points.emplace_back( ChartPoint{ x, y } );
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}
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OwnedXYDataSource source;
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source.setPoints( std::move( points ) );
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auto read = source.acquireRead();
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const DataRange full{ 0.0, static_cast<double>( count - 1 ) };
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const DataRange middle{ count * 0.25, count * 0.75 };
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Uint64 emitted = 0;
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std::vector<ReducedPoint> reduced;
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System::Clock reductionClock;
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for ( int run = 0; run < 5; ++run ) {
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const auto visible = visibleLogicalRange( read, full.min, full.max );
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reducePixelBuckets( read, visible, full, 1200, reduced );
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emitted += reduced.size();
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}
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const auto reductionTime = reductionClock.getElapsedTime();
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System::Clock panClock;
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for ( int run = 0; run < 5; ++run ) {
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const auto visible =
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visibleLogicalRange( read, middle.min + run * 100, middle.max + run * 100 );
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reducePixelBuckets( read, visible, middle, 1200, reduced );
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emitted += reduced.size();
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}
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const auto panTime = panClock.getElapsedTime();
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System::Clock yClock;
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for ( int run = 0; run < 5; ++run )
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EXPECT_TRUE( visibleYExtent( read, middle ).has_value() );
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const auto yTime = yClock.getElapsedTime();
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UTEST_PRINT_INFO(
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String::format( "chart %zu points: full %.2f ms, pan %.2f ms, visible Y %.2f ms, "
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"emitted %llu",
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count, reductionTime.asMilliseconds() / 5.0,
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panTime.asMilliseconds() / 5.0, yTime.asMilliseconds() / 5.0,
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static_cast<unsigned long long>( emitted / 10 ) )
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.c_str() );
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}
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}
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