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add method to handle channels as time #41

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Jun 24, 2020
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add method to handle channels as time #41

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21a1556
add method to handle channels as time
jdroenner Jun 22, 2020
77bef5a
add NoRasterForGivenTimeException if no match
jdroenner Jun 23, 2020
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24 changes: 24 additions & 0 deletions src/util/gdal_timesnap.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -214,6 +214,30 @@ GDALTimesnap::GDALDataLoadingInfo GDALTimesnap::getDataLoadingInfo(Json::Value d
fileName = fileName.replace(placeholderPos, placeholder.length(), snappedTimeString);
Log::debug(concat("getDataLoadingInfo: resulting time fileName: ", fileName.c_str()));

} else if (
datasetJson.isMember("channel_start_time_list")
&& datasetJson["channel_start_time_list"].isArray()
) {

Log::debug(concat("getDataLoadingInfo: using channels as time"));

auto time_channel = 0;
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@ChristianBeilschmidt ChristianBeilschmidt Jun 23, 2020

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What happens if time is too small and channel stays zero?

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@jdroenner jdroenner Jun 23, 2020

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i have added a NoRasterForGivenTimeException

const auto channel_time_strings = datasetJson.get("channel_start_time_list", Json::Value(Json::ValueType::arrayValue));
for (const auto &time_string : channel_time_strings) {
auto const channel_time = timeParser->parse(time_string.asString());
if (wantedTimeUnix >= channel_time) {
time_channel += 1;
} else {
break;
}
}

if (time_channel <= 0) {
throw NoRasterForGivenTimeException("No channel corresponds to the requested time");
}

Log::debug(concat("getDataLoadingInfo: setting channel to: ", time_channel, " (was: ", channel,") for time: ", wantedTimeUnix));
channel = time_channel;
}


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