HP ColorLaserJet CP3505X - Relationship between different Color Options

Hi everybody,
I know this is not exactly the right forum to ask this question, but I've put up the question in the HP Laserjet forum as well as in the Photography forum here and have not received any answer to it. Maybe somebody out here can answer it out of experience with a HP Color Laserjet printer:
Can anybody explain the relationship/interaction between the different Color Options (e.g. in the PCL6 driver) of the CP3505X to me?
Options available:
1) Driver Properties
Color Management:
Automatic
ManualDefault Color Profile
2) Printing Preferences
Advanced Tab:
ICM Method
Disabled
Handled by Host System
Handled by Printer
Color Tab:
Color Themes
Default (sRGB)
Image Optimization
Adobe RGB
None
Custom Profile
What kind of profiles are involved when printing output from an application in which case? The manual is very unspecific about this
For example:
Under which circumstances is the profile specified under Manual Color Management in the Driver Properties used? And is it the only correction applied under those circumstances?
What profile is being applied when "ICM Handled by Printer" is chosen in the Printing Preferences?
Under which circumstances are the Color Themes specified under the Color Tab used, and under which circumstances are they ignored?
I am completely confused an would appreciate any explanation.
Thanks
Beat Gossweiler
Switzerland

Try the Lightroom forum, or the Photoshop forum for your platform, Macintosh or Widows.

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Discussion continued from here.
In summary:
JackDunaway wrote:
Yes,
I can see clear benefits in implementing this Idea - that is, if your
underlying datatype elements have a 1:1 relationship with the UI
elements.
I will
illustrate this point by showing some potential flaws in your example:
"Profile Running" and "Profile Complete" are mutually exclusive, no?
Wouldn't it be better to have a single enum named "Profile" with three
elements "Idle, Running, and Complete" for the underlying datatype?
Having two mutually exclusive pieces of data in an underlying datatype
is among my favorite of code smell indicators.
Also, the underlying datatype probably only needs "Forward Miles" and
"Reverse Miles" since "Total Miles" is derived. Exclude "Total Miles"
from the underlying cluster and just show the sum for display.
Another
argument against using a 1:1 relationship: the customer now wants to
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enum on the UI. The data source (the VI that generates the data) would
need to be updated using your 1:1 relationship. Using underlying data
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panel) needs to change. I would be much more inclined to service the UI
FP for a cosmetic upgrade rather than tracing the data source back
through the HMI framework, through TCP, back to the RT, back to FPGA...
Basically...
I question a perfectly overlapped Venn Diagram where the set of data
shown to the user equals the dataset used for underlying data
processing/messaging/storing. The underlying datatype should be as
stripped and streamlined as possible, while the display datatype can
inherit all the flair and post-processing that Upper Management wants to
see in a UI.
LabBEAN wrote:
<JackDunaway wrote
I will illustrate this point by showing some potential flaws in your example...
<LabBEAN response
The data you see maps directly to tags on the PLC.
<JackDunaway wrote
Yes, I can see clear benefits in implementing this Idea - that is, if your underlying datatype elements have a 1:1 relationship with the UI elements.
<LabBEAN response
JackDunaway wrote:
This is a good indicator that we're both aware at this point that I'm
missing something... in all seriousness, could you reply to the 1:1
argument? I really want to understand this Idea and learn how/if I need
to apply it to my own style (our last back-and-forth turned out to be an enlightening and introspective exercise for me).
***EDIT: By all means, please start a discussion on the LabVIEW board so we're not hindered by the Exchange's interface. ***
My long delayed response:
The indicators you see map to tags on the PLC. That is, we were connecting through OPC to an application on a PLC that was written ~15 years ago. I have a VI where I read a bunch of SVs (Shared Variables). Each SV is bound through OPC to a PLC tag. In the interest of disclosure, two 16-bit tags are required to represent each 32-bit mileage number. In the same subVI, I read each set of mileage tags, convert, and feed my subVI cluster indicator. The same is true for wheel size: three bits get converted to the enum. Regardless, though, I have one subVI that reads SVs and outputs the same "underlying data" cluster that is seen on the UI. The UI has a "Faults" cluster full of fault Booleans that follows the same logic. When the user configures a profile of steps, they do so via an array of "step" clusters (although the cluster look is hidden for aesthetics). It's the same thing as above except we write tags instead of reading them.
In my case, each set of 16-bit tags is worthless as two 16-bit numbers. They are only useful as a 32-bit mileage, so I don't pass around the raw 16-bit data. The same is true for the wheel size bits. My software can just as easily (in fact, more easily) operate on the enum. So, the underlying cluster from the subVI is programmatically useful and applicable to the UI. I would guess that the same is true for a lot of RT applications, where the read VI can have some intelligence to process the data into useful / applicable clusters.
There are going to be cases where "Upper Management" would like to see "flair and post-processing" as you say. Your speed illustration is a good example of this. There are also instances where the cluster works fine on the UI the way it is (like this one and many others that we've seen).
<JackDunaway wrote
"Profile Running" and "Profile Complete" are mutually exclusive, no?
Wouldn't it be better to have a single enum named "Profile" with three
elements "Idle, Running, and Complete" for the underlying datatype?
<LabBEAN response
Did you mean "not" mutually exclusive? We combined 3 "dependent" (not mutually exclusive) Booleans into an enum for Wheel Size, as I mentioned above. Not sure now why we went the other way with these two (this was 2 years ago). In any event, with regard to UI representation, I still pass a cluster out of my read-raw-data-and-process-into-cluster subVI up to the applicable queued state machines and to the UI.
<JackDunaway wrote
Having two mutually exclusive pieces of data in an underlying datatype
is among my favorite of code smell indicators.
<LabBEAN response
Working with applications written in ladder logic, it is not uncommon to see separate Booleans that indicate the same condition. This seems to be especially true when safety is a concern. That is, ladder Coil A ON and Coil B OFF == switch open. Coil A OFF and Coil B ON == switch closed. If you ever read OPC tags from Coil A and Coil B and the two are the same, you know the ladder is in transition (hasn't updated the tags). Throw that point out and read again.
I, too, appreciate our back-and-forths. Good discussion.
Certified LabVIEW Architect
Wait for Flag / Set Flag
Separate Views from Implementation for Strict Type Defs

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(...later)
OK, let's go. I'm going to fully agree with you that LabVIEW imposes a strange constraint unique from most other languages where a Typedef defines two things: the underlying data structure, and also the view. A Strict Typedef should be more accurately deemed the Datatype-View-Definition, and a Typedef would be more accurately called the Datatype-Definition-and-View-Suggestion. And to be clear, there are two types of views: the programmer's view (a SubVI look and feel) and the UI view (what the user and Upper Management sees). (Finally, I admit I'm ignorant whether view or View is more a more appropriate term)
Linking the programmer's view to the datatype is perfectly fine with me, and based on your original Idea I think we both agree that's OK. I think we run into a disagreement where you have loosely tied the concept of "Strict TD" to "UI View".
Historically, I have used Strict Typedefs for the programmer's view (SubVIs), since I like to maintain a "functional UI" at the SubVI level. I don't use type definitions on User Interfaces - only Controls. That's the reason your Idea does not appeal to me, but perhaps if your Idea were implemented, it would appeal to me since View and Implementation would be divorced as separate entities within the Type Definition. (Does that classify as a Catch-22?) So, you're Idea is fundamentally suggesting that Type Definition .ctl files should be more accurately called "a container that holds both a Type Definition and any number of View Definitions as well".
Fundamentally, I think I finally understand the gist of your Idea: "let's ditch this weird constraint where View and Datatype are inextricably defined together in one file", and for that, I'll give Kudos to the original Idea. I got really tied up with the example you used to present the Idea, and plus I'm still learning a lot.
Additional thoughts:
This Idea reminds me of another: Tag XControl as Class View
We've still got some arguing to do on a 1:1 relationship between underlying datatype and UI presentation, so put your mean face back on:
Since our last conversation, interestingly, I have been on an anti-Typedef kick altogether. Why don't you drop some feedback on my attempt at a completely typedef-free UI framework?
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I must assume then that there would be a different heap maintained for each size of memory block that can be allocated, and the key must have something to do with the attractiveness of the particular memory block in the heap (perhaps the lowest address, resulting, hopefully, in growing the free store space less often, leaving more space for the stack to grow, or perhaps keyed based on the fragmentation, to hopefully result in less fragmentation, and therefore more efficient use of the memory space, or perhaps based on page boundaries, keeping as much data in the same page as possible, etc).
So at this point, I have a few questions I've been unable to resolve completely:
1. Am I correct that the heap was so named because (perhaps at one point in time), a heap is/was commonly used to track the available memory in the free store?
2. If so, would it be correct that there would be a heap per standard block size?
3. Also, at what level of granularity would a heap typically be used (memory page, memory blocks, individual words (4-bytes))?
4. What would be the most likely property one would use as a key. That is, what makes the root item on the heap ideal?
5. Would a industrial strength system like the jvm use a (perhaps modified or tuned) heap for this sort of task, or would this typically be too naive for an real world solution today?
Any insight would be awesome!
Thanks,
A.

jschell wrote:
I think you are not only mixing terms but domains.
For starters the OS allocs memory. Applications, regardless of language, request memory from the OS and use it in various ways.
There are many variations of the term "heap" like the following.
[http://en.wikipedia.org/wiki/Heap_(data_structure)]
[http://en.wikipedia.org/wiki/Dynamic_memory_allocation]
A java VM will request memory from the OS (from a 'heap') and use it in its application 'heap' (C/C++) and then create the Java 'heap'. There can be variations of that along the way that can and likely will include variations of how each heap is used, potentially code that creates its own heap, and potentially other allocators which use something which is not a heap.This last part, I find a bit confusing. By "use something which is not a heap", do you mean the heap data structure, or the dynamic memory pool meaning of heap? If the former, then you would be implying that it would be common for a heap data structure to be used to manage the heap dynamic memory pool. If the latter, what would this "something which is not a heap" be? The best definition of "heap" I've found simply states that it is a pool of memory that can be dynamically allocated. If there is some other way of allocating dynamic memory, then it would suggest that the previous definition of "heap" is incomplete.
>
So to terms.
1. Am I correct that the heap was so named because (perhaps at one point in time), a heap is/was commonly used to track the available memory in the free store?Which 'heap'? The VM one? It is probably named that because the implementors of the Sun VM were familar with how C++ and Smalltalk allocated memory.Okay, but that begs the question, was the heap in C++ and/or Smalltalk so named for the above queried reason?
>
2. If so, would it be correct that there would be a heap per standard block size?Not sure what you are referring to but probably a detail of the implementation. And since there are different levels the question doesn't mean much.
However OS allocations are always by block if that helps. After that it requires making the question much, much more specific.
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>
4. What would be the most likely property one would use as a key. That is, what makes the root item on the heap ideal?"Key" is not a term that will apply in this discussion.
You appear to be referring to strategies for effective allocation of memory such as allocations from different regions by size comparison.
It is possible that all levels might use such an allocator. General purpose applications do not sort allocations though (as per your one reference that mentions 'key'.) Sorry, I got the term "key" from an article I read regarding heaps, that indicates that a "key" is used to sort the elements, which I guess would be a more generalized way to make a heap than assuming a natural ordering on the elements in the heap. I'm not sure if the terminology is standard.
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5. Would a industrial strength system like the jvm use a (perhaps modified or tuned) heap for this sort of task, or would this typically be too naive for an real world solution today?Again too indefinite. The Sun VM uses a rather complicated allocator, the model for which originated after years of proceeding research certainly in Smalltalk and in Lisp as well, both commercially and academically.
I am sure the default is rules driven either explicitly or implicitly as well. So it is self tuning.
There are command line options that allow you to change how it works as well.I guess perhaps I could attempt to clarify my initial question a bit.
There is a 1:1 correspondence between the runtime stack, and a stack data structure. That is, when you call a function, it pushes a stack frame onto the runtime stack. When you return from a function, it pops a stack frame from the runtime stack. This is almost certainly the reasons the runtime stack is named as it is.
The question is, is there or has there ever been a 1:1 correspondence between some aspect of the dynamic memory heap or how it is managed, and a heap data structure? If so, it would explain the name, but I'm a bit puzzled as to how a heap data structure would be of assistance in creating or managing the dynamic memory heap. If not, on the other hand, then does anybody know where the name "heap" came from, as it applies to the dynamic memory pool?
A.

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