#linuxcnc-devel | Logs for 2013-03-21

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[00:29:05] <andypugh> I am sure I am missing something obvious: http://pastebin.com/ChGs1UHG
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[00:56:10] <jepler> if this is a pin then you need to dereference it before storing the value:
[00:56:14] <jepler> 128 inst->hal.rows[inst->row] = 1;
[00:56:40] <jepler> the same is true on line 125, but it is not a diagnostic because for spooky reasons assigning 0 to a pointer is the same as assigning NULL to it
[00:56:48] <jepler> *(int->hal.rows[inst->row]) = 1;
[00:56:50] <jepler> *(int->hal.rows[inst->row]) = 0;
[00:57:01] <jepler> er, I misspelled inst but maybe that's what's up...?
[00:57:30] <andypugh> Thanks, that was it.
[00:57:47] <jepler> I can see where "it errors on the line where I assign 1 but not 0" is weirdness
[00:58:17] <andypugh> That was why I was confused. If it ws both lines, I would have spotted it was a dereference problem.
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[03:32:00] <KGB-linuxcnc> 03chrisinnanaimo 05master 4385710 06linuxcnc 10configs/sim/ 10(87 files in 4 dirs) * Gmoccapy -add a new Gscreen based control screen
[03:32:00] <KGB-linuxcnc> 03chrisinnanaimo 05master 977f4bc 06linuxcnc 10src/emc/usr_intf/gscreen/gscreen.py * gscreen -keep track of the DTG preference and update the screen button
[03:32:04] <KGB-linuxcnc> 03chrisinnanaimo 05master 229ae88 06linuxcnc 10configs/sim/gscreen_custom/ 10industrial.glade 10industrial_handler.py * gscreen config -show/hide DTG DRO as per preferences.
[03:38:51] <kwallace> jepler: I found that hershey was excepting on the "e" and "+" in the exponential number caused by my bad g-code. I put e and + in the translate dict mapped as . and -, and it doesn't exception out, but g-code alarms as it should. GScreen doesn't have a problem because it doesn't draw extents, at least for the lathe config.
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[06:14:14] <cmorley1> Gscreen should draw what ever gremlin does. Gscreen doesn't build it's own gremlin, it uses HAL_gremlin which is mostly just a wrapper around gremlin.
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[06:24:08] <kwallace1> When I tried my test with the lathe config it didn't show the extents, but I didn't pursue it further. I assumed that extents were not drawn, but now that you mention it, I should have tried it with good g-code to see if the bad g-code was the problem.
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[06:27:03] <kwallace1> I just tried it with good and bad code and the extents didn't show.
[06:52:26] <kwallace1> I see an extents setting in gscreen.py, toggle_offset_view(),... self.widgets.gremlin.set_property('show_extents_option', not data), so it looks like the extents are intended to work. I seem to recall seeing them, with the X extents shown edge up. Oh, well tomorrow is another day.
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[12:44:04] <jepler> kwallace: I hope you'll catch this later in the logs.
[12:44:39] <jepler> kwallace: in unaltered linuxcnc master branch, when the extents are still at the 'default' values they were initialized to, the extent label is never plotted
[12:45:01] <jepler> for the z axis, for example, it's the test g.max_extents[z] > g.min_extents[z] that stops it
[12:45:28] <jepler> because the initial min_extent is positive 9e99 and the initial min_extent is negative 9e99, reversing the usual case
[12:45:37] <jepler> -9e99 > 9e99 is false
[12:45:57] <jepler> so presumably you will need to correct this test which is inside of the method show_extents in glcanon.py
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[14:23:25] <jepler> logger[mah]: url
[14:23:25] <logger[mah]> jepler: Log stored at http://linuxcnc.mah.priv.at/irc/%23linuxcnc-devel/2013-03-21.html
[14:23:32] <jepler> kwallace: please have a look at what I said earlier
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[14:36:14] <kwallace> Jepler: I think we reversed this test to try to accommodate the rear tool feature by reversing the pointing and such for the X axis. This code seems to be very much tailored to just what the original intent was. Tweaking bits until we get what we want has worked for us so far, but there may come a time when we really need to have a full understanding of the whole.
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[14:52:46] <kwallace> I added the e and + characters to the translate dictionary to satisfy hershey went it gets a request to print these characters. It's a little hard to know what to count as a fault, the fact that loading a file doesn't get checked for validity early on, bad code in a file produces extreme numbers and passes them on, or hershey doesn't handle characters it doesn't like very well. The software Gods want more time from me.
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[14:54:02] <jepler> the problem is that due to some other changes you have it's trying to actually render the string "9e99", because you broke the tests that treat this special value specially
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[15:03:49] <kwallace1> Yes, thinking more, I think we also tried to use reversing the direction of the extents to infer the rear tool configuration. I'll need to go back and check.
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[16:07:29] <IchGuckLive> Hi all linuxcnc is spreading the world !! and our channel is growing now to 130 standard stuff
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[17:01:05] <L84Supper> http://tinyurl.com/cdymk2y look at all the tool holders
[17:02:19] <skunkworks> wow - 1982
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[17:04:16] <L84Supper> http://tinyurl.com/chevv7n this one is closer to you and not bad
[17:04:47] <skunkworks> wow
[17:04:53] <L84Supper> holds 24 tools
[17:05:09] <skunkworks> Seb was just looking at a similar moog
[17:05:43] <L84Supper> whats the max speed of the spindle?
[17:05:57] <skunkworks> That has a newish looking control
[17:06:22] <skunkworks> heh - he says that it has been retrofitted.
[17:06:40] <L84Supper> Fagor 8025M
[17:07:23] <skunkworks> I wonder how mucht that retrofit cost...
[17:08:13] <L84Supper> probably more than what he's selling it for
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[17:09:00] <L84Supper> probably won't fit in the back of my Pinto
[17:10:47] <L84Supper> 4500 RPM, 5HP
[17:11:31] <skunkworks> Pinto? really
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[18:10:56] <kwallace1> Thinking out loud, in glcanon.py, we initialize the extents variables to invalid values, such that the mins are bigger than the maxes. We then call the gcode.calc_extents module, which creates new values, but may not return values for axes that don't exist. We use the invalid values to filter what we do further on.
[18:13:49] <kwallace1> If we also, just after calculating the extents, reverse the sense of the X axis for the rear tool config, the X axis filter breaks.
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[18:23:46] <kwallace1> Maybe, move changes from the front end to the back?
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[23:14:44] <mhaberler> logger[mah]: url
[23:14:44] <logger[mah]> mhaberler: Log stored at http://linuxcnc.mah.priv.at/irc/%23linuxcnc-devel/2013-03-21.html
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