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 # min\_ttc\_evaluator

 Last update: 16.07.2025 

<a id="l00001" name="l00001"></a> 1 

<a id="l00003" name="l00003"></a> 3 

<a id="l00004" name="l00004"></a> 4\#include "autonomy/evaluator/min\_ttc\_evaluator/min\_ttc\_evaluator.h"

<a id="l00005" name="l00005"></a> 5 

<a id="l00010" name="l00010"></a> 10namespace [simulation\_framework](namespacesimulation__framework.xhtml)

<a id="l00011" name="l00011"></a> 11{

<a id="l00012" name="l00012"></a> 12 

<a id="l00017" name="l00017"></a> 17namespace [evaluator](namespaceevaluator.xhtml)

<a id="l00018" name="l00018"></a> 18{

<a id="l00019" name="l00019"></a> 19 

<a id="l00020" name="l00020"></a> 20MinTtcEvaluator::MinTtcEvaluator(const std::string&amp; kpi_name)

<a id="l00021" name="l00021"></a> 21 : min_ttc_(std::chrono::milliseconds::max()), kpi_name_(kpi_name)

<a id="l00022" name="l00022"></a> 22{

<a id="l00023" name="l00023"></a> 23}

<a id="l00024" name="l00024"></a> 24 

<a id="l00025" name="l00025"></a>[ 25](classsimulation__framework_1_1evaluator_1_1MinTtcEvaluator.xhtml#a1c317953b082649c8134c3c79cec5160)void MinTtcEvaluator::Init() {}

<a id="l00026" name="l00026"></a> 26 

<a id="l00027" name="l00027"></a>[ 27](classsimulation__framework_1_1evaluator_1_1MinTtcEvaluator.xhtml#aff4c106aeed6de6bb55d3e5c4680e04a)void MinTtcEvaluator::Reset()

<a id="l00028" name="l00028"></a> 28{

<a id="l00029" name="l00029"></a> 29 min_ttc_ = std::chrono::milliseconds::max();

<a id="l00030" name="l00030"></a> 30}



<a id="l00031" name="l00031"></a> 31 

<a id="l00032" name="l00032"></a>[ 32](classsimulation__framework_1_1evaluator_1_1MinTtcEvaluator.xhtml#aec1741a5c8b655182c090b2bafdafb12)[core::kpi::KpiContent](structsimulation__framework_1_1core_1_1kpi_1_1KpiContent.xhtml) MinTtcEvaluator::CalculateKpi(const osi3::GroundTruth&amp; ground_truth)

<a id="l00033" name="l00033"></a> 33{

<a id="l00034" name="l00034"></a> 34 [core::kpi::KpiContent](structsimulation__framework_1_1core_1_1kpi_1_1KpiContent.xhtml) kpi_content;

<a id="l00035" name="l00035"></a> 35 kpi_content.name = kpi_name_;

<a id="l00036" name="l00036"></a> 36 kpi_content.[data\_type](structsimulation__framework_1_1core_1_1kpi_1_1KpiContent.xhtml#a4e2c56824798e6d55c9062552059d1bd) = core::kpi::Datatype::Value::kDouble;

<a id="l00037" name="l00037"></a> 37 kpi_content.type = GetKpiType();

<a id="l00038" name="l00038"></a> 38 kpi_content.unit = "ms";

<a id="l00039" name="l00039"></a> 39 kpi_content.timestamp.seconds = ground_truth.timestamp().seconds();

<a id="l00040" name="l00040"></a> 40 kpi_content.timestamp.nanoseconds = ground_truth.timestamp().nanos();

<a id="l00041" name="l00041"></a> 41 

<a id="l00042" name="l00042"></a> 42 const auto ttc = ttc_calculator_.Calculate(ground_truth);

<a id="l00043" name="l00043"></a> 43 

<a id="l00044" name="l00044"></a> 44 if (ttc &lt; min_ttc_)

<a id="l00045" name="l00045"></a> 45 {

<a id="l00046" name="l00046"></a> 46 min_ttc_ = ttc;

<a id="l00047" name="l00047"></a> 47 }

<a id="l00048" name="l00048"></a> 48 

<a id="l00049" name="l00049"></a> 49 kpi_content.value = std::to_string(min_ttc_.count());

<a id="l00050" name="l00050"></a> 50 

<a id="l00051" name="l00051"></a> 51 return kpi_content;

<a id="l00052" name="l00052"></a> 52}



<a id="l00053" name="l00053"></a> 53 

<a id="l00054" name="l00054"></a>[ 54](classsimulation__framework_1_1evaluator_1_1MinTtcEvaluator.xhtml#af021217919c4e7498c6247dd46947e2c)core::kpi::Type MinTtcEvaluator::GetKpiType() const

<a id="l00055" name="l00055"></a> 55{

<a id="l00056" name="l00056"></a> 56 return core::kpi::Type::kScalar;

<a id="l00057" name="l00057"></a> 57}



<a id="l00058" name="l00058"></a> 58 

<a id="l00059" name="l00059"></a> 59} // namespace evaluator

<a id="l00060" name="l00060"></a> 60} // namespace simulation\_framework

[evaluator](namespaceevaluator.xhtml)

The namespace containing evaluator implementations.



[simulation\_framework](namespacesimulation__framework.xhtml)

The top namespace for simulation framework.



[simulation\_framework::core::kpi::KpiContent](structsimulation__framework_1_1core_1_1kpi_1_1KpiContent.xhtml)

struct KpiContent

**Definition** [kpi\_definition.h:67](kpi__definition_8h_source.xhtml#l00066)



[simulation\_framework::core::kpi::KpiContent::data\_type](structsimulation__framework_1_1core_1_1kpi_1_1KpiContent.xhtml#a4e2c56824798e6d55c9062552059d1bd)

Datatype data_type

**Definition** [kpi\_definition.h:72](kpi__definition_8h_source.xhtml#l00072)