orthogonal move broken.

The crosshair orthomoves relatively to the first point of the (multi)line.
this can help:

Index: src/action.c
===================================================================
RCS file: /cvsroot/pcb/pcb/src/action.c,v
retrieving revision 1.112
diff -U2 -b -r1.112 action.c
--- src/action.c 4 Sep 2007 00:08:39 -0000 1.112
+++ src/action.c 4 Sep 2007 05:35:21 -0000
@@ -856,5 +856,6 @@
   void *ptr1, *ptr2, *ptr3;

- if (!Marked.status || TEST_FLAG (LOCALREFFLAG, PCB))
+ if (!Marked.status || TEST_FLAG (LOCALREFFLAG, PCB) ||
+ (Settings.Mode == LINE_MODE && TEST_FLAG (ORTHOMOVEFLAG,PCB)))
     SetLocalRef (Crosshair.X, Crosshair.Y, True);
   switch (Crosshair.AttachedLine.State)

I agree the behavior is odd and I was about to apply the patch, but here's the thing:

That's the only use of LOCALREFFLAG anywhere. The entire point seems to be to give you the option of the behavior you want: If you set "Settings|Auto zero delta measurements" (clear as mud, eh?) you set LOCALREFFLAG and then ortho lines behave exactly like you want. Otherwise you are restricted to the mark (which you can set in advance with Ctrl-M, so in theory there's even a point).

I'm open to suggestions, but I don't really like ORTHOMOVE implies LOCALREF (btw the LINE_MODE test is superfluous -- that code only executes in line mode).

>That's the only use of LOCALREFFLAG anywhere.

grep shows another occurrence in misc.c. there are a lot of things that I can't undestand in PCB code, e.g. why any line should have thermals flags to every layer. so, I just tried (not very successfully) to propose most conservative changes that fix the evidently buggy behaviour and concern nothing else.

>LINE_MODE test is superfluous -- that code only executes in line mode).

Actually I think this was a mistake because the code executes also in polygon mode and SetLocalRef() should be called then, too.

Best regards

The use in misc.c is used when moving an object around using the mouse. If LOCALREF is on, it will use the point of the initial click as the reference when moving objects, if it is off it will use the mark if set.

Seems like the best fix for this bug may be a better name for the LOCALREFFLAG than "Auto zero delta measurements" Maybe reverse the polarity and call it "Use mark as reference when moving and drawing" or something?

I agree that ORTHOMOVE should not imply LOCALREF.