r5406 - trunk/eda/fped

[werner at docs.openmoko.org]

Author: werner
Date: 2009-08-08 16:17:23 +0200 (Sat, 08 Aug 2009)
New Revision: 5406

Modified:
   trunk/eda/fped/README
Log:
This introduction was missing in the previous commit:

  For the new measurements, we need more flexible canvas markup options. This
  includes the thicker circle for hovering.

  To generalize hovering, we can't rely on redrawing alone but need to use a
  pixmap to store the background as well. This creates a complex interaction
  with dragging, which the existing code cannot handle cleanly. 
  Therefore, ...

This commit changes:

- README: documented use of label in new-style measurements



Modified: trunk/eda/fped/README
===================================================================
--- trunk/eda/fped/README	2009-08-08 14:11:26 UTC (rev 5405)
+++ trunk/eda/fped/README	2009-08-08 14:17:23 UTC (rev 5406)
@@ -445,7 +445,7 @@
 
 Syntax:
 
-<type> <from> <op> <to> <offset>
+<type> [<label>] <from> <op> <to> <offset>
 
 Types:
 - measxy: measure diagonally
@@ -468,3 +468,11 @@
 Example:
 
 measx pad.sw -> pad.se 1mm
+
+The optional label is printed directly before the distance. Example:
+
+a: vec @(0mm, 0mm)
+b: vec @(1mm, 0mm)
+measx "width = " a >> b 0mm
+
+would print "width = 1mm"