the function cvCreateTrackbar create the trackbar(slider)
with the specified name and range,,,
my question, what is the trackbar??
A trackbar is a slider GUI component:
|--------------------[]---------|
You can use it to adjust some values in a specified range.
Try making one yourself. This might help: http://aishack.in/tutorials/highgui-creating-interfaces/
Related
When I make a contour plot with Python, I have been using a set_aspect function. Because this allows me to avoid image/contour-lines distortion caused by changing both axis.
: for example, ax1.set_aspect('equal', 'box-forced')
But, I just found that the option 'box-forced' is not valid in Python3.
So my question is, is there any alternative of the 'box-forced' option in Python3? I want exactly the same effect as the ax1.set_aspect('equal', 'box-forced') in Python2.
Thanks!
I just found that there is a function plt.axis('scaled').
It seems that this does what I wanted in a recent version (3.7) of Python3.
You can try this one from the official documentation that I found in as my first recommended page:
https://matplotlib.org/stable/api/_as_gen/matplotlib.axes.Axes.set_aspect.html
I'm not sure what you're trying to accomplish here exactly, but you could try the following:
ax1.set_aspect(aspect='equal', adjustable='box')
You could also check the following link which is for the set_adjustable method:
https://matplotlib.org/stable/api/_as_gen/matplotlib.axes.Axes.set_anchor.html#matplotlib.axes.Axes.set_anchor
Hope this helps. Good luck!
This might be a simple fix I'm unsure. I have the following formula which I would like to be able to drag up and down =IF(C311>B311,IF(C310>B310,IF(B309>C309,IF(C312>B312,2,1),0),0),0)
I'm guessing AND can be implemented in some way but I'm not sure. The logic behind my goal is if C311>B311 AND C310>B310 AND B309>C309 then check to see if C312>B312 if it is then put a 2 else put a 1. Perhaps there is another solution as well I'm not thinking of.
Try this: =IF(AND(C311>B311,C310>B310,B309>C309),IF(C312>B312,2,1),"")
Last argument I left it as "" but replace it to whatever you need.
Just another approach-
=IF((C311>B311)*(C310>B310)*(B309>C309),IF(C312>B312,2,1),"")
Is there a Way to get the BuiltInParameterId (Ex:BuiltInParameter.SHEET_SIZE)
from a Parameter ElementId.
I have a number extracted from an Schedule Field (-1010106)
and I want to get the BuildInParameter-id.
Currently I am doing it like this:
BIPdic = {i.value__ : i for i in BuiltInParameter.GetValues(BuiltInParameter)}
bipid= BIPdic[-1010106]
I could not find an easier way. (Its easy, but I have to built a dictionary
from all (over 3000 BuiltInParameters)).
THX
tillbaum
I am not absolutely sure I know what you mean. Check out the description of the ElementId constructor taking a BuiltInParameter input argument.
You can also take a look at the built-in parameter checker BipChecker and its BipChecker GitHub repo. It iterates over all built-in parameter values and tries to retrieve a parameter value for each one.
That sounds pretty similar to what you are after with your dictionary.
NOTE: The scenario is using 2 entity framework models to sync data between 2 databases, but I'd imagine this is applicable to other scenarios. One could try tackling this on the EF side as well (like in this SO question) but I wanted to see if AutoMapper could handle it out-of-the-box
I'm trying to figure out if AutoMapper can (easily :) compare the source and dest values (when using it to sync to an existing object) and do the copy only if the values are different (based on Equals by default, potentially passing in a Func, like if I decided to do String.Equals with StringComparison.OrdinalIgnoreCase for some particular pair of values). At least for my scenario, I'm fine if it's restricted to just the TSource == TDest case (I'll be syncing over int's, string's, etc, so I don't think I'll need any type converters involved)
Looking through the samples and tests, the closest thing seems to be conditional mapping (src\UnitTests\ConditionalMapping.cs), and I would use the Condition overload that takes the Func (since the other overload isn't sufficient, as we need the dest information too). That certainly looks on the surface like it would work fine (I haven't actually used it yet), but I would end up with specifying this for every member (although I'm guessing I could define a small number of actions/methods and at least reuse them instead of having N different lambdas).
Is this the simplest available route (outside of changing AutoMapper) for getting a 'only copy if source and dest values are different' or is there another way I'm not seeing? If it is the simplest route, has this already been done before elsewhere? It certainly feels like I'm likely reinventing a wheel here. :)
Chuck Norris (formerly known as Omu? :) already answered this, but via comments, so just answering and accepting to repeat what he said.
#James Manning you would have to inherit ConventionInjection, override
the Match method and write there return c.SourceProp.Name =
c.TargetProp.Name && c.SourceProp.Value != c.TargetProp.Value and
after use it target.InjectFrom(source);
In my particular case, since I had a couple of other needs for it anyway, I just customized the EF4 code generation to include the check for whether the new value is the same as the current value (for scalars) which takes care of the issue with doing a 'conditional' copy - now I can use Automapper or ValueInject or whatever as-is. :)
For anyone interested in the change, when you get the default *.tt file, the simplest way to make this change (at least that I could tell) was to find the 2 lines like:
if (ef.IsKey(primitiveProperty))
and change both to be something like:
if (ef.IsKey(primitiveProperty) || true) // we always want the setter to include checking for the target value already being set
Is it possible to turn off abbreviation in getopt_long()? From the man page:
Long option names may be abbreviated if the abbreviation is unique or is an exact match for >some defined option.
I want to do this because the specification I have received for a piece of code requires full-length exact match of the flags, and there are many flags.
Codeape,
It appears there isn't a way to disable the abbreviation feature. You aren't alone in wishing for this feature. See: http://sourceware.org/bugzilla/show_bug.cgi?id=6863
Unfortunately, It seems the glibc developers don't want the option as the bug report linked above was resolved with "WONTFIX". You may be out of luck here :-\
If you use argp_parse() instead of getopt() (highly reccommended, BTW), you can access the exact flag entered by the user through
state->argv[ state->next - 2 ]
It's a bit of a hack, but should work.
This is not perfect solution but you can check exact arg given by a user after calling getopt_long() (normally within switch) like below:
if (strcmp(argv[optind-1], "--longoption") == 0)
optind points a next argument that you need to process. Thus, you can access the original arg using optind-1.