The tools shows up, if drawing only lines. That is what I did before and a
snapshoot is located on the linuxcnc forum on the thread that I posted
before.
Citando Kirk Wallace <[email protected]>:
> On 06/28/2015 02:01 PM, Tom Easterday wrote: > Does anyone know if
> this issue was resolved?
>> http://emc-developers.narkive.com/OwGHijSh/error-in-backplot-with-backtool-set-up-in-lathes
>>
>> <http://emc-developers.narkive.com/OwGHijSh/error-in-backplot-with-backtool-set-up-in-lathes>
>>
>> I am having this problem now that I finally have gotten all the
>> planets (nearly) aligned to display my slant bed lathe correctly.
>> Everything is working EXCEPT the tool is not displayed in Axis, I
>> only have a “+” displayed. Not a show stopper, but would be nice to
>> have working correctly. I have seen several discussions like this
>> but haven’t found that it was ever resolved… Thanks, -Tom
> My guess is that the "+" is the graphic for the tool control point. This
> "+" is drawn in glcanon.py starting on line 1512 below. I would be
> tempted to change the gl_triangle_fan drawing, starting at line 1548, to
> gl_lines. The control point lines show up, so if the tool is drawn with
> lines, it should show up too. If the tool does show up, then we will
> know that it is a surface drawing issue.
>
> I don't know if the .axisrc file can fix this sort of thing, it might be
> able to. I would prefer this configuration become part of the main program.
>
> http://www.informit.com/articles/article.aspx?p=328646&seqNum=6
> https://www.opengl.org/sdk/docs/man2/xhtml/glBegin.xml
> https://www.opengl.org/wiki/Getting_Started (See How-To Guides,
> Pre-OpenGL 3.0)
>
>
> http://git.linuxcnc.org/gitweb?p=linuxcnc.git;a=blob;f=lib/python/rs274/glcanon.py;h=6d907d622d5f547df722f80a72da54ab7b95500a;hb=HEAD#l1222>
> 1499 lathe_shapes =
> [
>> 1500 None, # 0
>> 1501 (1,-1), (1,1), (-1,1), (-1,-1), # 1..4
>> 1502 (0,-1), (1,0), (0,1), (-1,0), # 5..8
>> 1503 (0,0) # 9
>> 1504 ]
>> 1505 def lathetool(self, current_tool):
>> 1506 glDepthFunc(GL_ALWAYS)
>> 1507 diameter, frontangle, backangle, orientation =
>> current_tool[-4:]
>> 1508 w = 3/8.
>> 1509
>> 1510 radius = self.to_internal_linear_unit(diameter) / 2.
>> 1511 glColor3f(*self.colors['lathetool'])
>> 1512 glBegin(GL_LINES)
> first line | > 1513 glVertex3f(-radius/2.0,0.0,0.0)
>> 1514 glVertex3f(radius/2.0,0.0,0.0)
> second line -- > 1515 glVertex3f(0.0,0.0,-radius/2.0)
>> 1516 glVertex3f(0.0,0.0,radius/2.0)
>> 1517 glEnd()
>> 1518
>> 1519 glNormal3f(0,1,0)
>> 1520
> Tip orientation 9 has a round graphic, see 2/3 down here:
> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Gremlin> 1521 if
> orientation == 9:
>> 1522 glBegin(GL_TRIANGLE_FAN)
>> 1523 for i in range(37):
>> 1524 t = i * math.pi / 18
>> 1525 glVertex3f(radius * math.cos(t), 0.0,
>> radius * math.sin(t))
>> 1526 glEnd()
>> 1527 else:
> all other tool orientations have the same round tip shape with front and
> back angles added > 1528 dx, dy =
> self.lathe_shapes[orientation]
> the orientation number is used to look up delta x and delta y from the
> lathe_shapes list above > 1529
>> 1530 min_angle = min(backangle, frontangle) * math.pi / 180
>> 1531 max_angle = max(backangle, frontangle) * math.pi / 180
>> 1532
>> 1533 sinmax = math.sin(max_angle)
>> 1534 cosmax = math.cos(max_angle)
>> 1535 tanmax = math.cos(max_angle)
>> 1536 sinmin = math.sin(min_angle)
>> 1537 cosmin = math.cos(min_angle)
>> 1538 tanmin = math.cos(min_angle)
>> 1539
>> 1540 circleminangle = - math.pi/2 + min_angle
>> 1541 circlemaxangle = - 3*math.pi/2 + max_angle
>> 1542 d0 = 0
>> 1543
>> 1544 x1 = (w - d0)
>> 1545
>> 1546 sz = max(w, 3*radius)
>> 1547
> draw the round tip > 1548 glBegin(GL_TRIANGLE_FAN)
>> 1549 glVertex3f(
>> 1550 radius * dx + radius *
>> math.sin(circleminangle) + sz * sinmin,
>> 1551 0,
>> 1552 radius * dy + radius *
>> math.cos(circleminangle) + sz * cosmin)
>> 1553 for i in range(37):
>> 1554 #t = circleminangle + i * (circlemaxangle -
>> circleminangle)/36.
>> 1555 t = circleminangle + i * (circlemaxangle -
>> circleminangle)/36.
>> 1556 glVertex3f(radius*dx + radius *
>> math.sin(t), 0.0, radius*dy + radius * math.cos(t))
>> 1557
> draw the front and back angle portion of the tool > 1558
> glVertex3f(
>> 1559 radius * dx + radius *
>> math.sin(circlemaxangle) + sz * sinmax,
>> 1560 0,
>> 1561 radius * dy + radius *
>> math.cos(circlemaxangle) + sz * cosmax)
>> 1562
>> 1563 glEnd()
>> 1564 glDepthFunc(GL_LESS)
> --
> Kirk Wallace
> http://www.wallacecompany.com/machine_shop/
> http://www.wallacecompany.com/E45/
>
>
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