org.opentripplanner.api.mapping.ElevationMapper Maven / Gradle / Ivy

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package org.opentripplanner.api.mapping;

import org.opentripplanner.common.model.P2;

import java.util.List;

public class ElevationMapper {
    public static String mapElevation(List> pairs) {
        if (pairs == null) {
            return null;
        }
        StringBuilder str = new StringBuilder();
        for (P2 pair : pairs) {
            str.append(Math.round(pair.first));
            str.append(",");
            str.append(Math.round(pair.second * 10.0) / 10.0);
            str.append(",");
        }
        if (str.length() > 0) {
            str.setLength(str.length() - 1);
        }
        return str.toString();
    }
}