User Guide

FontLab 4
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Layers
With the TrueType tool you can see various information layers in the Glyph
Window.
Gridlines
Resulting ou tline
Original ou tline
Point indexes
Pixel centers
Resulting pixels
These layers are different from the usual editing layers, so we will explain
them here:
Outline The original, untouched outline of the glyph always appears in
the Glyph Window in black. The Resulting outline, which is
the result of the interpretation of the instruction program,
appears in gray.
Grid Gridlines. Gridlines mark the edges of pixels that will appear
in the selected PPM size.
Centers
Centers of pixels. When the outline is filled, all pixels whose
centers are on the outline or inside the outline are set black.
This layer is very useful for delta hinting.
Pixels
Resulting pixels. FontLab uses the real Windows TrueType
rasterizer to preview a filled glyph at the selected PPM after
interpretation of the instruction program.
Point indices
Point numbers. There are also two special points that mark
the left and right sidebearings of the character. You can apply
any commands to any of these points.