Howto: Make a relationship chart
This is a Howto on how to make a relationship chart (can be ancestors, descendants, ...) with GRAMPS 2.2.x. and the Relationship plugin.
The report is made with the graphviz backend, so you need to install graphviz first (http://graphviz.org). The goal is to offer a complete howto/tutorial on using this report, from conception, to using your report (poster printing, ...).
Before you start
GRAMPS can produce charts, but to view them, you need other programs. We recommend that you install the following:
- Graphviz: required, whithout this, no relationship chart
- Inkscape: for viewing and editing svg charts, export to png
- gv, kghostview: for viewing ps charts
- ps2pdf: for converting ps to pdf
- adobe reader, kpdf: for viewing pdf charts
- openoffice, koffice: for viewing odt documents
Filters: what persons to print ?
What are filters?
In GRAMPS you can define filters to make a selection of individuals, see Example_filters. In the relationship chart all custom person filters you made will be available, as well as the standard descendants and ancestors filters. These last start from the active person.
How many people ?
Your filter can contain as many people as you want. Note however that printing or viewing of large charts can be very problematic.
Example 1: a descendant chart
Download example.gramps, create a new database in GRAMPS called example.grdb, and import the example.gramps data into it.
If not the case, set the active person to Garner, Lewis Anderson
To make a descendant chart with the relationship report, choose the menu item "Reports -> Graphical reports -> Realtionship graph"
In the dialog, set the format to .png and chose the following in the tabs available: Paper Options -> Size : Custom Size (Set width and height to 10000 cm, or some other large value) Report Options -> Filter: Ancestors of Garner, Lewis Andersson layout optons -> Aspect ratio: minimal size
(I sometimes experience problems setting the sizes in the Paper options dialog. A workaround is to use the example using graphviz code in example 3 below.)
For me (using gramps 2.2.7 on windows XP), the result was descendants.png, to be uploaded here soon.
Use http://www.gramps-project.org/wiki/index.php?title=Make_flash_plugin_from_a_png to make the resulting graph easier to navigate.
Example 1b: a chart with ancestors
Download and open the example.gramps file as in Example 1 Set Warner, Carl Thomas to be the active person.
Repeat the process in example 1, but choose the filter "Ancestors of Warner, Carl Thomas" this time.
Example 2: A chart with ancestors, descendants and their families
Note: This example uses filters. See  for en introductory example.
Open the file example.gramps and select Cristiansen, Frances as the active person.
First we create a helper filter: Open the filter editor and create a new filter, called Frances1. The filter should contain the rules
- "Ancestors of <person>" choose Christiansen, Frances and check "inclusive".
- "Descendants of <person>" chose Christiansen, Frances
Make sure that "At least one rule must be fulfilled" is chosen, so that we get both ancestors and descendants.
Now we create the filter we want for the report:
Create a new filter, called Frances2. This filter should contain the rules
- "People matching the filter", choose Frances1
- "Parents of filter" Frances1
- "Siblings of filter" Frances1
- "Spouses of filter" Frances1
Now close the filter editor, and follow the instruction sin examples 1a and 1b, but this time choosing the filter "Frances2" in the Report Options tab.
My result is the file: ancestorsAndDescendants.png
Example 3, Generating the graph by using the Graphviz command line tool
I use this only as a way to work around problems like setting the paper size.
In the menu, select "Reports -> Code Generators -> Relationship graph" Choose the filter you want to use, and set also as many of the other options as possible to the desired values (as explained in example 1), but the format should be "Graphviz (dot)". Click Ok. You should now have a file of type ".dot". This file is a text file, so it can be opened in any text-editor.
For paper size, look around line 36-37 for two lines that define the "page" (paper size) and "size" (area of paper to use), and change these to some large values.
Save the modified file under the name report.dot, and run the commad "dot -Ppng -oreport.png report.dot". This should use the graphviz "dot" tool to generate the .png file containing the report.