I'm trying to create a triangular table, and set my header cells at a 45 degree angle to the rest of the table. Like below (only less sloppy, of course). Is there an easy way to do this, or do I have to take the long route?
It is possible ... but rather unmaintainable. Also, it's not as pretty as one could hope for:
This is a table with each cell's width and height set to the same value, and with Diagonal Lines to mimic the slanted cells. The slanted text is 'fake': it's just an anchored object inside the cell, rotated 45°.
The diagonal lines are drawn separately from the straight lines (and each other), so the joints are not joined.
To add another column and row (for Limerick perhaps?), you can add a row and column on the bottom and left and at the top and right (because the 'slanted' cells are actually 2x2 cells). Then you have to make sure all straight lines appear where they should and manually add new diagonals.
Drawing this with a proper vector application such as Illustrator may be a bit more work, but ultimately leads to a much better result.