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OK, so you have the real image as digital artwork, and you did not mention having a digitizer. This is what you could do:
- choose an app you feel comfortable with, that lets you draw straight lines as well as freehand lines, on top of (without including) an existing image. A lot of apps work with layers, where you can see several layers at once, modify only one layer at a time, and finally save the superposition of any set of layers you choose.
- open said app, let it display the floor plan in one layer; now put an empty layer on top of it, and in that layer, paint the outline of a single room in black. Make sure it is a closed figure.
- when done, fill it black; then fill it again in red. (I have chosen to work in black for best contrast, then switch to the final color; you could also directly work in the final color).
- repeat for a second room, but choose a different final color.
- do a couple of rooms; don't do them all before everything turns out satisfactorily!
- now save the one layer you have drawn in an uncompressed format, say GIF (you don't want the colors to get damaged at all).
Hint: perform several saves while doing this, into different files; you may want to return to an earlier situation when something went wrong...
Now create (part of) your app, temporarily show the shadow image instead of the real one. Mouse over room 1 and display the RGB color values you are getting (they should be absolutely constant within each single room).
Use this tool to sample the colors you need to create your data structure; it could be something like:
class Room {
string name;
string comment;
Color color;
public Room(string name, string comment, int R, int G, int B) {
this.name=name;
this.comment=comment;
this.color=Color.FromRGB(R,G,B);
}
}
class MyApp {
void CreateRooms() {
List<Room> rooms=new List<Room>();
rooms.Add("Kitchen", "check smoke alarm once a year", 255, 0, 0);
rooms.Add(...);
...
}
...
void Image_MouseMove(...) {
Color color=shadowImage.GetPixel(e.X, e.Y);
Room room=null;
if (rooms==null) CreateRooms();
foreach(Room r in rooms) if (r.Color == color) room=r;
if (room!=null) {
...
}
}
}
that is the zest of it. It probably needs syntax fixes and refinements, but should get you started.
Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]
I only read formatted code with indentation, so please use PRE tags for code snippets.
I'm not participating in frackin' Q&A, so if you want my opinion, ask away in a real forum (or on my profile page).
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Interesting thread Luc. I'm about to embark on a utility similar to this so your answers here will probably save me many hours of work!
DaveIf this helped, please vote & accept answer!
Binging is like googling, it just feels dirtier. (Pete O'Hanlon)
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
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Thanks Dave.
Will this turn into a CP article?
If so, do you want any help?
Cheers.
Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]
I only read formatted code with indentation, so please use PRE tags for code snippets.
I'm not participating in frackin' Q&A, so if you want my opinion, ask away in a real forum (or on my profile page).
modified on Wednesday, May 26, 2010 2:38 PM
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Luc Pattyn wrote: Will this turn into a CP article?
It depends on how embarassing the code turns out to be  I can do basic drawing with no problems but full on graphics stuff is new to me I have to admit. I'm thinking about using this as a possible reason to take the plunge into WPF - maybe! It may be a better tool for the job  Any opinion?
Luc Pattyn wrote: If so, do you want any help?
A very kind and flattering offer - if it starts off OK then I will take you up on that. Thank you!
DaveIf this helped, please vote & accept answer!
Binging is like googling, it just feels dirtier. (Pete O'Hanlon)
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
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I have no experience with, and no personal opinion on WPF. All related comments in the Lounge made me decide to stay away from it until it, and the tools it requires, become somewhat decent and stable. Not sure that has happened yet.
And I couldn't comment on what would be best for your app, as I am not familiar with its requirements or functionality, other than that you want to do some point-and-clicking. Which in itself can be served well by GDI+.
FWIW: sooner or later, I'll have to give in, and learn WPF. At such time, I'll be much interested in tackling the same problem twice, and compare the practical aspects of both WPF and GDI+.
Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]
I only read formatted code with indentation, so please use PRE tags for code snippets.
I'm not participating in frackin' Q&A, so if you want my opinion, ask away in a real forum (or on my profile page).
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Ahhhhh now I see where you are. I gave that a try and it worked. So basically I have a Bitmap that I set when the form loads to the picture with the color squares/other shapes.
When the mouse moves over the image shown it ask the Shadow image for the color it has.. if it matches a specific room then that is when it shows the information.
You - are - a - genius
I was trying to go a hard way around i guess.. or the impossible way i dunno.
So let me ask you this.. is it possible to highlight that area? Since each room will have a specific color assigned to it, and the mouse moves over it.. is it possible to some how highlight that room with a opacity on the windows form?
Thank you so much for what you helped me out with. I understand completely what you were tryign to tell me since you posted the steps. Can't believe I didn't see this earlier
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Yes, you have a real and a shadow image; you show the real one, but virtually you walk the shadow one so you get room identification almost automatically.
To highlight a room, you could do one of several things:
- replace the entire picture by a new one which you created manually (so N rooms takes N+1 pictures plus a shadow image); conceptually simple, lots of unrewarding work.
- replace the entire picture by a new one which you calculate on the spot. It could consist of the original pixels unmodified except for the ones that are inside the room, you could change their visible color and/or brightness; for a black-and-white floor plan, you might want to highlight the "current" room using a yellowish local background. It probably takes a couple of tricks to get that to work swiftly; you can't do a full 600*800 GetPixel/SetPixel loop fast enough, but you could do a two-image flood fill (scan the shadow, modify the visible image). Alternatively, you could extract each room once, from the shadow image; so you get separate room images, which tell you where the highlight should happen. If you make all room images the same highlight color, all you need is painting two images on top of each other: the real one, and the current room.
Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]
I only read formatted code with indentation, so please use PRE tags for code snippets.
I'm not participating in frackin' Q&A, so if you want my opinion, ask away in a real forum (or on my profile page).
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I think the first one is the most work but would be most likely what I know to do. Because there really isn't anything specifying the size and shape of the room. There is just the color of it.
So when the mouse hovers it gets the room number from the shadow image (by the color) and replace the visible one with a new 800x600 image with just that room highlighted.
Have you ever attempted this before? I'm wondering if you would see the whole form flash or if it will actually look like the room just highlighted
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splitting the shadow image into separate rooms is easy, as each room has its pixels in a different color.
it would be rather slow, however it needs to be done only once; so your app could do it once, at startup, in a background thread; or do it just-in-time and cache them; or you could write (the same) code to do it beforehand, and ship all the images with the app, possibly as embedded resources.
I haven't done this recently; I have done similar things in the past though. And I would see no flashing whatsoever, as I would probably use double-buffering, and the two images are very similar anyhow; where they differ, they do so on purpose. One should take care not to change anything as long as the current room does not change.
Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]
I only read formatted code with indentation, so please use PRE tags for code snippets.
I'm not participating in frackin' Q&A, so if you want my opinion, ask away in a real forum (or on my profile page).
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I've been working on this and everything is going really well except one thing.. some colors are coming up different from photoshop vs when deployed in the application.
One color I chose is a redish color..
In photoshop it shows:
R= 253
G= 54
B= 0
But when I display the color in my application it shows as
R= 253
G= 29
B= 0
which is giving different colors? Any idea why? I saved it as a GIF format as you suggestde
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I don't know, and I'm not sure it is relevant. I did suggest you use your app to sample the colors, then type those values into your data initialization statements, rather than reading them from the creating app's dialogs.
You could close Photoshop, then restart it to open the same image again, and have another look. Maybe somehow the colors got changed while saving. Did you have to specify some "quality" wishes?
Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]
I only read formatted code with indentation, so please use PRE tags for code snippets.
I'm not participating in frackin' Q&A, so if you want my opinion, ask away in a real forum (or on my profile page).
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I didn't any quality options. I'm guessing it was just to close and it converted it to the actual RGB red color? Not sure.. I just pick a different color
Just found it odd that it did that. Thanks again!
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You're welcome.
And yes, the color drift sounds odd.
Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]
I only read formatted code with indentation, so please use PRE tags for code snippets.
I'm not participating in frackin' Q&A, so if you want my opinion, ask away in a real forum (or on my profile page).
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I want to read data from serial port in a period can I reported myself with a thread and converted into digital data for display in a label
thank you in advance![Rose | [Rose]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/rose.gif)
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I can't be certain of what you are asking, but if you are looking into working with your serial port, here would be a good start
I/O Ports Uncensored Part 1[^]
"I need build Skynet. Plz send code"
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I want to read data and convert them into value
thanks
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Hi
I am having trouble streaming jpeg's from a server to a client using TCP. A lot of the images I recieve are corrupt and some of them are superimposed on top of each other. I have used blocking, non blocking TCP and havnt been able to fix it.
I believe that to much time is being taken up processing each frame before recieving the next frame. Therefore the TCP buffer is being overwritten with the next TCP packet.
Is this what is happening or is it somthing else? And does anyone know how to fix this problem?
Thanx
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This is the third day in a row you present the same problem without actually offering any tangible information. You did not tell what classes you use, whether you use extra threads or asynchronous operations, you did not show any code, nothing.
I don't think there are many mind readers here, so the only possible answer is: you either have a conceptual bug, or an implementation bug in your code, or a general PC problem, or very bad luck, or something else.
Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]
I only read formatted code with indentation, so please use PRE tags for code snippets.
I'm not participating in frackin' Q&A, so if you want my opinion, ask away in a real forum (or on my profile page).
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Ok the reason I havnt provided more info is becuase I have used mutliple methods to try and solve the same problem and none have worked. Blocked socket, non blocking socket, tcpclient ect and all have failed. Therefore the problem is not with classes or extra threads.
I have found out that I am having this problem because I am expecting to recieved the whole message in one read rather than multiple reads.
I need to learn how to frame the data. A beginners mistake 
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ikon666 wrote: A beginners mistake
The main mistake is not to provide any information on a single attempt; that way nobody can help you out.
Had you shown code, you would most likely have gotten the right answer pretty soon.
Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles]
I only read formatted code with indentation, so please use PRE tags for code snippets.
I'm not participating in frackin' Q&A, so if you want my opinion, ask away in a real forum (or on my profile page).
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Hi everyone,
I'm developing an application that needs a new bluetooth profile, so I have to modify the Bluetooth stack to fit my requeriments. The stack should be something like this http://www.musenka.com/info/doc/MDP(MedicalDevicesProfile).pdf[^]. But I really don't know how to begin. I don't know if there is an open implementation of the BT stack that I can modify... Or if there is a way to use other stacks parts... I'm writing this in C# forum because my app is in C# but I suppose the stack changes and everything will be in C++.
Any help would be appreciate 
Thanks in advance
Kind regards
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Hi every1,
I am working with lists and faced with a problem.
this is the method in my first class which has implemented in DAL
namespace Assignmnet2
{
[Serializable]
class Student_Manipulation
{
public void ReadStudentFile(string Fr_Name, string Sr_Name, string St_Id, int Lb_Mark, int Ass1, int Ass2, int
Fnl)
{
FileStream flstream = new FileStream("c:\\student.dat",FileMode.Open,FileAccess.Read);
BinaryFormatter BnFrmt = new BinaryFormatter();
List<ITECH3219Student> list = (List<ITECH3219Student>)BnFrmt.Deserialize(flstream);
foreach (ITECH3219Student ITECH3219Student in list)
{
Fr_Name = ITECH3219Student.Fr_name;
Sr_Name = ITECH3219Student.Sr_Name;
St_Id = ITECH3219Student.St_Id;
Lb_Mark = ITECH3219Student.Lb_Mark;
Ass1 = ITECH3219Student.Ass1;
Ass2 = ITECH3219Student.Ass2;
Fnl = ITECH3219Student.Fnl;
}
}
}
-------------------
In BLL I have this class
namespace Assignmnet2.BLL
{
class Finalization
{
public void read(string Fr_Name, string Sr_Name, string St_Id, int Lb_Mark, int Ass1, int Ass2, int Fnl)
{
Assignmnet2.Student_Manipulation read = new Assignmnet2.Student_Manipulation();
read.ReadStudentFile(Fr_Name, Sr_Name, St_Id, Lb_Mark, Ass1, Ass2, Fnl);
}
}
}
----------------------
Now, in peresentation layer I have this code
private void Form1_Shown(object sender, EventArgs e)
{
Assignmnet2.BLL.Finalization ReadStudent = new Assignmnet2.BLL.Finalization();
LstBox.Items.Add(ReadStudent(ITECH3219Student.Fr_name + " " + ITECH3219Student.Sr_Name + " " +
ITECH3219Student.St_Id));
----------------
Frankly, I don't really know what I supposed to write in this layer in order to show file's information in listbox.
Could you please help me?thanx
modified on Wednesday, May 26, 2010 8:52 AM
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Please edit your question to put your code between <pre>... your code here ....</pre> tags.
I for one will not even attempt to read such unformatted code. It hurts my eyes!!
Henry Minute
Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”
Why do programmers often confuse Halloween and Christmas?
Because 31 Oct = 25 Dec.
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That is still not readable.
Firstly, do it by editing your original question, not by answering this.
Secondly, put the <pre> tag before your code and the </pre> tag after your code. Then format the code, indents etc..
Henry Minute
Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”
Why do programmers often confuse Halloween and Christmas?
Because 31 Oct = 25 Dec.
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