compulsory, single

—

Inside <mixchange> the different changes of the breathing gases are given for <descent>, and <ascent> respectively.

<profile>

<ascent>, <descent>

<inputprofile>, <profile>

(see also <profile>, and <inputprofile>)

<!-- (change of breathing gas during) descent -->
<inputprofile>
    <waypoint>
        <depth>0.0</depth>
        <divetime>0.0</divetime>
        <switchmix ref="air"/>
    </waypoint>
    <waypoint>
        <depth>35.0</depth>
        <divetime>210.0</divetime>
        <switchmix ref="Trimix1"/>
    </waypoint>
    <waypoint>
        <depth>50.0</depth>
        <divetime>300.0</divetime>
        <switchmix ref="Trimix2"/>
    </waypoint>
    <waypoint>
        <depth>80.0</depth>
        <divetime>480.0</divetime>
        <switchmix ref="Heliox"/>
    </waypoint>
    <waypoint>
        <!-- remaining time at bottom shall be 10 minutes, then ascent begins -->
        <depth>80.0</depth>
        <divetime>1080.0</divetime>
    </waypoint>
</inputprofile>
<!-- change of breathing gas during following ascent -->
<!-- (for the ascent profile is to be calculated, there don't appear any -->
<!-- <divetime> elements inside the <waypoint> statements) -->
<mixchange>
    <ascent>
        <waypoint>
            <depth>80.0</depth>
            <switchmix ref="Trimix2"/>
        </waypoint>
        <waypoint>
            <depth>50.0</depth>
            <switchmix ref="Trimix1"/>
        </waypoint>
        <waypoint>
            <depth>35.0</depth>
            <switchmix ref="Nitrox4060"/>
        <depth switchmix="Nitrox4060">35.0</depth>
        </waypoint>
        <waypoint>
            <depth>15.0</depth>
            <switchmix ref="Nitrox2080"/>
        </waypoint>
        <waypoint>
            <depth>5.0</depth>
            <switchmix ref="oxygen"/>
        </waypoint>
    </ascent>
</mixchange>