Re-interpolate Metrics with script

Scripting
1

Hey,

is there already a script, that “re-interpolates Metrics” of all brace layers at once?
I guess it might be written within two minutes, but I can’t script :see_no_evil:

Right now I am opening all glyphs with “New Tab with all Brace Layer” and select all brace layers manually to re-interpolate matrice. I think this could be perfectly done with a script within seconds instead of one hour.

Thanks and have a happy Sunday/Holiday!

2

In one hour you can learn basic scripting so far that you can build the loop. Read through the scripting tutorials, parts 1 and 2:
https://glyphsapp.com/tutorials/scripting-glyphs-part-1
https://glyphsapp.com/tutorials/scripting-glyphs-part-2

If the layer is a bracket or brace layer, its .isSpecialLayer attribute will be True. And then you can hang the .reinterpolateMetrics() method.

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3

Hi Rainer,

finally, I tried do the script. I took your existing script “New Tab with Special Layers” and modified it, but it doesn’t work as expected. Basically, I just replaced the “newTab” function with “reinterpolateMetrics”.

Within the Makro Window, I get this error:

Traceback (most recent call last):
File "<macro>", line 19, in <module>
AttributeError: 'NSKVONotifying_GSFont' object has no attribute 'reinterpolateMetrics'

This is the script right now, I have no idea why the function doesn’t work.

#MenuTitle: Reinterpolate Brace Metrics
# -*- coding: utf-8 -*-
from __future__ import division, print_function, unicode_literals
__doc__="""
Reinterpolates Metrcis of all special (bracket & brace) layers.
"""

Glyphs.clearLog() # clears log of Macro window
thisFont = Glyphs.font # frontmost font
affectedLayers = []
for thisGlyph in thisFont.glyphs: # loop through all glyphs
	for thisLayer in thisGlyph.layers: # loop through all layers
		# collect affected layers:
		if thisLayer.isSpecialLayer: 
			affectedLayers.append(thisLayer)

# Reinterpolate Brace Metrics:
if affectedLayers:
	reinterpolateMetrics = thisFont.reinterpolateMetrics()
	reinterpolateMetrics.layers = affectedLayers

# otherwise send a message:
else:
	Message(
		title = "Nothing Found",
		message = "Could not find any bracket or brace layers in the font.",
		OKButton = None
	)

Any help is really appreciate. My current typeface has to many Brace Layers to do it by hand…

Thanks a lot :slight_smile:

4

You must call reinterpolateMetrics on a GSLayer object. While you iterate through layers, you can just call that on every one for which isSpecialLayer is True

5

Thanks for your answer. It will take another six months to understand that :smiley:

6

It’s all in the first part of Rainer’s script, you don’t need the rest:

for g in Font.glyphs:
  for l in g.layers:
    if l.isSpecialLayer:
      l.reinterpolateMetrics()

Try this :wink:

7

No idea what /g and /l means, but it works. Thank you very very much. This helps a lot and makes the production way more faster.

Merci Beaucoup!!!

8

You should read up on variables and loops. That is the very basis of scripting. Scripting Glyphs, part 1 | Glyphs

9

Note: the function reinterpolateMetrics() is not documented on the Python Scripting API doc. This would have saved me a lot of time, instead I wrote some really clunky script to do this manually :sweat_smile:

10

I should be available in the Core docu. But that is not complete, too. There is a script from Rainer that shows all available methods for a class.

11

From my personal beginner’s experience, strongly recommend searching on the forum before writing anything. 95% of the time someone already solved it :slight_smile:

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12

the Script is called “Method Reporter”.

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