lease, level, curve)</strong>
    </dt>
    <dd>
    Create a new DADSR EnvGraph object.
 All arguments optional.


    <h3>Parameters:</h3>
    <ul>
        <li><span class="parameter">x_min</span>
         Minimum value for x axis, defaults to 0.
        </li>
        <li><span class="parameter">x_max</span>
         Maximum value for x axis, defaults to 1.
        </li>
        <li><span class="parameter">y_min</span>
         Minimum value for y axis, defaults to 0.
        </li>
        <li><span class