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→Web page usage
The generated HTML file <code>DescendantSpaceTree.html</code> can be published to a web server, or simply opened locally with a web browser or file explorer (Edge, Chrome, Safari, Firefox, Opera, etc.)
The person chosen as the '''''{{man label|Center Person''''' }} option will be displayed in yellow, and immediate descendants are expanded. Basic information about the selected person is shown on the left.
Depending on the '''''{{man label|Maximum display birth year''''' }} option, dates may be excluded from the basic information.
Clicking on any of the displayed person nodes will change focus, and close any other currently open branch. The immediate descendants of the focused person will be colored to indicate the number of immediate descendants. The deeper the hue of coloring indicates a greater number of immediate descendants.
The entire graph within the canvas can be re-positioned by clicking and holding on the canvas, followed by dragging.
A {{man button|🔍}} search box in the top right side of the window can be used to quickly focus on a person, including any persons not currently displayed. Any part of a name can be searched, as well as the Gramps Database ID. At least three characters are required before the search displays results. The list of search results can be scrolled with a mouse wheel or touch pad, or up and down arrow keys. Click on a person in the search to focus immediately on that person, or press the Escape key to cancel the search. Persons found in the search that include a plus sign "+" indicate that person is a spouse of a descendant.
The reset button '''⟳''' can be pressed to reset the graph and focused person back to the original starting person and graph position.
