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No, I mean I would call new Plot feature z-order,
will leave layers terminology as it was and
graphzorder will become obsolete (although still working).
New name for this feature will be plotorder and will be switchable
by setoption something like this:
SetOption("PlotOrder", 1 );
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: "Dennis Brown" <see3d@xxxxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Wednesday, February 18, 2009 10:22 PM
Subject: Re: [amibroker] Re: Plot() and z-order
> Hi Tomasz,
>
> I was not suggesting that you should change any previous terminology.
> That would not be wise.
>
> I have Howard's Intro to AB book, but not his first. I will admit
> that I have not read it from cover to cover, as I got it to use as an
> indexed reference. However, I have looked in the glossary and index
> and in the plot commands and in the reserved variables, and I don't
> see where he explains Z-order. The only mention is of Graphzorder as
> a reserved variable without explanation. Of course the z-order
> switched by this variable is a forward or reverse order that is
> unchanged in definition.
>
> Perhaps Howard can point out the page where he explains Z-order?
> Or perhaps you are talking about his next book?
>
> Best regards,
> Dennis
>
> On Feb 18, 2009, at 3:43 PM, Tomasz Janeczko wrote:
>
>> I will stick with z-order in all docs. And layers will remain in
>> original AB sense.
>> That is mainly because I don't want to change things that are already
>> described in Howard's books.
>>
>> Best regards,
>> Tomasz Janeczko
>> amibroker.com
>> ----- Original Message -----
>> From: "Dennis Brown" <see3d@xxxxxxxxxxx>
>> To: <amibroker@xxxxxxxxxxxxxxx>
>> Sent: Wednesday, February 18, 2009 9:21 PM
>> Subject: Re: [amibroker] Re: Plot() and z-order
>>
>>
>>> Of course they resort to: "This is the same as making "layers" of
>>> objects where the Z-order determines what object is on top of
>>> another." in order to help the reader visualize it.
>>>
>>> Another word that was referenced was Planes. Also Depth Buffers, and
>>> Z-buffers relate to 3D methods. Also it seams that "layers" as a
>>> term
>>> is used for just about everything as a concept of hierarchy in
>>> software, so I am ready to back away from that. Z-order is more
>>> widely used in windows programming due to what MS called it.
>>>
>>> The Z-order of plots has always been there based on the order of
>>> execution of AFL (forward or reverse). Now we have this new idea
>>> of Z-
>>> order that is based on discrete numbered planes or buffers that also
>>> have their own independent Z-order based on the previous sentence.
>>>
>>> Ok, this will be my humble suggestion for the plot planes: Z-planes.
>>> I can visualize that. Each Z-plane can have the Z-order of plots as
>>> forward or reversed as before.
>>>
>>> I am done commenting on this subject now. I will use whatever is
>>> decided by Tomasz.
>>>
>>> Best regards,
>>> Dennis
>>>
>>> On Feb 18, 2009, at 2:28 PM, Mike wrote:
>>>
>>>> z-order is a pretty standard reference in coding languages, and is
>>>> used as an adjective.
>>>>
>>>> http://en.wikipedia.org/wiki/Z-order
>>>>
>>>> Mike
>>>>
>>>> --- In amibroker@xxxxxxxxxxxxxxx, Dennis Brown <see3d@xxx> wrote:
>>>>>
>>>>> Tomasz,
>>>>>
>>>>> Thank you for making it possible for customers like me who use AFL
>>>> as
>>>>> a programming language to create trading "platforms". Every time
>>>> you
>>>>> add some big or little thing that provides additional AFL
>>>> flexibility
>>>>> to control internal functions, I am able to quickly expand my
>>>> horizons
>>>>> with how I use AmiBroker.
>>>>>
>>>>> Yes, I struggled when writing the previous post when I realized
>>>>> that
>>>>> even though I had been thinking and referring to the Z-order as
>>>>> "layers" for a long time, that term had already been used in
>>>> AmiBroker
>>>>> for visibility layers.
>>>>>
>>>>> When trying to use only "Z-order", I struggled because, this
>>>>> implies
>>>> a
>>>>> verb, and conceptually I wanted to convey the idea of a noun of
>>>>> positions. It can be visualized both ways -- as outputting plots
>>>>> in
>>>>> groups with the group order defined by Z-order parameter, or as
>>>>> implemented where each Z-order refers to a different Z-layer with
>>>> its
>>>>> own buffer. I find it much easier to visualize it as different Z-
>>>>> layers on the chart. I come from a background in CAD and photoshop
>>>>> type programs where layers refers to Z-layers.
>>>>>
>>>>> I don't have all the answers, all I can do is provide some
>>>>> feedback
>>>>> from my experience. I think Z-order is a good term to describe the
>>>>> "action" parameter of the command, and Z-layers or perhaps Z-levels
>>>> is
>>>>> the static "result" of executing the commands. Perhaps someone
>>>>> else
>>>>> has a better idea about this.
>>>>>
>>>>> Best regards,
>>>>> Dennis
>>>>>
>>>>> On Feb 18, 2009, at 3:38 AM, Tomasz Janeczko wrote:
>>>>>
>>>>>> Dennis,
>>>>>>
>>>>>> Thank you for the feedback. All your findings are correct. It is
>>>>>> very encouraging seeing new feature being
>>>>>> fully utilised in such a short time.
>>>>>> Regarding naming conventions - yes I try to keep the "Z-order"
>>>> name
>>>>>> for new z-order feature
>>>>>> and do not use the word "layer" to avoid mix with old
>>>> functionality.
>>>>>> So, I would like to avoid names like z-layer.
>>>>>>
>>>>>> In fact the drawing studies (lines/rectangles/elipsses) can use
>>>> both
>>>>>> functionalities *independently*.
>>>>>> The z-order defines the drawing order (above/below), while the
>>>> layer
>>>>>> controls visibility (on/off) depending on interval displayed.
>>>>>> Having two as independent controls was intended and provided for
>>>>>> maximum flexibility.
>>>>>>
>>>>>> If anyone has better ideas on naming conventions, they can be
>>>> changed.
>>>>>>
>>>>>> For me "z-order" name represents actual functionality best. I have
>>>>>> some doubts regarding "layer" word, because
>>>>>> this old functionality actually is just visibility switch.
>>>>>>
>>>>>> Best regards,
>>>>>> Tomasz Janeczko
>>>>>> amibroker.com
>>>>>> ----- Original Message -----
>>>>>> From: "Dennis Brown" <see3d@xxx>
>>>>>> To: <amibroker@xxxxxxxxxxxxxxx>
>>>>>> Sent: Wednesday, February 18, 2009 3:01 AM
>>>>>> Subject: Re: [amibroker] Plot() and z-order
>>>>>>
>>>>>>
>>>>>>> Tomasz,
>>>>>>>
>>>>>>> Thanks for all the layers. I have already added them to my
>>>> charts
>>>>>>> (which removed a bunch of spaghetti code) and have generically
>>>> used
>>>>>>> up
>>>>>>> all 11 already!
>>>>>>>
>>>>>>> Having plot Z-layers makes my AFL much more modular and the
>>>> includes
>>>>>>> are more complete.
>>>>>>>
>>>>>>> I just want to confirm that Gfx drawings plot above Z-layer 5 and
>>>>>>> below Z-layer -5. This effectively adds one more Z-layers --
>>>> since
>>>>>>> you can't mix Gfx overlay modes in the same chart.
>>>>>>>
>>>>>>> It appears that shapes plot to Z-layer 0 of the specified layer
>>>> (like
>>>>>>> intraday layer). Plotting text seems to got to Z-layer 0, as
>>>> well as
>>>>>>> drawing text studies. Calling two different things "Layers" may
>>>>>>> cause
>>>>>>> confusion, so we all should stick with Z-order or Z-layer to make
>>>> it
>>>>>>> clear.
>>>>>>>
>>>>>>> For those who might wonder what to use all the Z-layers can be
>>>> used
>>>>>>> for, here is an example of how I apportioned them on my charts
>>>> for
>>>>>>> now
>>>>>>> --all are used (and I could even use a few more):
>>>>>>>
>>>>>>> -6 Gfx mode 1 (I do not use)
>>>>>>> -5 Bg fill area 1 (used for multiple overlapping bands layer
>>>> settable
>>>>>>> in each indicator)
>>>>>>> -4 Bg fill area 2
>>>>>>> -3 Bg fill area 3
>>>>>>> -2 Bg fill area 4
>>>>>>> -1 Ovals/Rectangles manual chart highlighting (default setting)
>>>>>>> 0 Study lines (default setting), PlotText(), PlotShapes()
>>>>>>> +1 Upper chart Volume bars, Middle chart Volume bars, Trade
>>>> equity
>>>>>>> histograms & lines
>>>>>>> +2 Under price bar shadow areas
>>>>>>> +3 Price bars/lines, -- stops & limits (plot under)
>>>>>>> +4 Signal Ribbon displays at bottom of chart
>>>>>>> +5 Lower overlapped Volume bars and Volume indicators, Volume and
>>>>>>> signal Ribbon grid lines
>>>>>>> +6 Gfx mode 0 (8 pseudo "Z-layers" of Gfx button arrays)
>>>>>>>
>>>>>>> The beauty of Z-layers is that the calculation order is decoupled
>>>>>>> from
>>>>>>> the plot order.
>>>>>>>
>>>>>>> The Gfx drawings do not have Z-order. It would be nice to have
>>>> them,
>>>>>>> but since my Gfx buttons can all be drawn at the end of the AFL,
>>>> it
>>>>>>> is
>>>>>>> inconvenient, but not too difficult to arrange for the fact that
>>>> the
>>>>>>> detection order and the drawing order are reversed. It just
>>>> means
>>>>>>> that it is not completely modular with includes, and a bit error
>>>>>>> prone
>>>>>>> from manual editing. I can live with it though.
>>>>>>>
>>>>>>> This is a major milestone for my charts.
>>>>>>>
>>>>>>> Best regards,
>>>>>>> Dennis
>>>>>>>
>>>>>>> On Feb 15, 2009, at 4:12 AM, Tomasz Janeczko wrote:
>>>>>>>
>>>>>>>> Hello,
>>>>>>>>
>>>>>>>> With regard to 5.21.0 BETA new functionality
>>>>>>>> "Plot, PlotForeign and PlotOHLC now have new parameter zorder
>>>> which
>>>>>>>> defines the Z-axis position of given plot. (FC#257)"
>>>>>>>>
>>>>>>>> It works correctly for PlotOHLC and PlotForeign.
>>>>>>>> For Plot() function, the XShift parameter is incorrectly used as
>>>> z-
>>>>>>>> order.
>>>>>>>> This will be fixed in 5.22.
>>>>>>>>
>>>>>>>> So if you need z-ordering for Plot(), please use PlotOHLC
>>>> instead
>>>>>>>> until 5.22 comes up.
>>>>>>>>
>>>>>>>> Thanks to Dennis for reporting this.
>>>>>>>>
>>>>>>>> Best regards,
>>>>>>>> Tomasz Janeczko
>>>>>>>> amibroker.com
>>>
>>>
>>> ------------------------------------
>>>
>>> **** IMPORTANT PLEASE READ ****
>>> This group is for the discussion between users only.
>>> This is *NOT* technical support channel.
>>>
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>>>
>>> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
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>>>
>>> Yahoo! Groups Links
>>>
>>>
>>>
>>
>>
>> ------------------------------------
>>
>> **** IMPORTANT PLEASE READ ****
>> This group is for the discussion between users only.
>> This is *NOT* technical support channel.
>>
>> TO GET TECHNICAL SUPPORT send an e-mail directly to
>> SUPPORT {at} amibroker.com
>>
>> TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at
>> http://www.amibroker.com/feedback/
>> (submissions sent via other channels won't be considered)
>>
>> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
>> http://www.amibroker.com/devlog/
>>
>> Yahoo! Groups Links
>>
>>
>>
>
>
>
> ------------------------------------
>
> **** IMPORTANT PLEASE READ ****
> This group is for the discussion between users only.
> This is *NOT* technical support channel.
>
> TO GET TECHNICAL SUPPORT send an e-mail directly to
> SUPPORT {at} amibroker.com
>
> TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at
> http://www.amibroker.com/feedback/
> (submissions sent via other channels won't be considered)
>
> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> http://www.amibroker.com/devlog/
>
> Yahoo! Groups Links
>
>
>
------------------------------------
**** IMPORTANT PLEASE READ ****
This group is for the discussion between users only.
This is *NOT* technical support channel.
TO GET TECHNICAL SUPPORT send an e-mail directly to
SUPPORT {at} amibroker.com
TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at
http://www.amibroker.com/feedback/
(submissions sent via other channels won't be considered)
For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
http://www.amibroker.com/devlog/
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