Searching for Individual Tiles by Edge Markings

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Input Template: 

The left button simply looks up the Heesch number of the input tile from a database.  The result of this search appears in the box below the button  The right button calls a program which attempts to build a coronal configuration of maximal size (if the Heesch number is 1 or greater).  If the tile has Heesch number 1, the program will generate a configuration with one corona; If the tile has Heesch number 2, the program will generate a configuration with two coronas; etc.  For tiles that tile the plane or whose Heesch number is greater than 6, the program will generate a configuration of six coronas.  If the program takes more than one minute, it will quit and not generate the picture.  If the program successfully finds the maximal corona within 1 minute, a dialog box will appear prompting you to download a postscript file.

Enter Edge Markings:


 or

Searching by Heesch Number

This will give you a list of tiles with specified Heesch Number

Select Heesch number from dropdown list and click search button:  1 2 3 4 5