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.. and please stop cross posting in different forums - Medhi also gave you a similar answer in the other forum you posted this question - ok, so, he didn't chain the replaces, no big deal
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s = string.Join( "", s.Select( ch => ch == 'a' ? 'c' : ch == 'c' ? 'a' : ch ) );
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sir it is giving compilation error sir please try to fix it and update the answer
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You're expected to do some of the work yourself. We don't get paid to write code for you.
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What do I get if I "fix" it?
It's a "code fragment" that conveys the essence of your question.
Do you know what a "code fragment" is?
Do you know what LINQ is?
Do you know what a "using" statement is used for?
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That may be correct but I know I can understand the Replace() structure one hell of a lot easier that your linq solution. I guess it takes a particular mental bent to look at that and have it go 'click' and understand it.
Never underestimate the power of human stupidity
RAH
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You're right.
Replace() is fine if one is always content just to use the first thing that comes to mind.
If I needed to use something similar in an intensive production situation, I would benchmark "all" scenarios and go with the one that performed best; "bent" or not.
I thought it was an interesting exercise.
But then again, I've also spent a lot of time with LINQ and don't feel the need to dumb myself down because someone else might not get it (or bother trying); after all, it's just a select, a couple of "if's", and a join ...
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If performance was an issue I could understand benchmarking the processes, that aside, I always go for the most supportable because the poor sod who has to support the app down the track may not understand the linq but would certainly understand the Replace option.
As a response to a newbies question (which already has a simple solution) it is valid, he may look at that and go Ahhh I get it!
Never underestimate the power of human stupidity
RAH
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The message from Thomas says that you need to recompile PDFSharp (specifically the PdfSharp.Charting assembly) with the changes he's suggested.
You can find both classes in the folder: PDFsharp\code\PdfSharp.Charting\PdfSharp.Charting.Renderers
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
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Hi!
Works great! But i also had to add
using PdfSharp.Pdf
to RendererInfo.cs, to make the application run.
Thank you very much!
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Hello. I am placing 4 dots on an image (1280x720) using mouse click. Now I crop this image of size just bigger than these 4 dots (coords). How do I place the 4 coordinates on the cropped image ? Thanks for any pointer.
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If you place the 4 dots, then crop the image to a size that is larger than the hypothetical rectangular bounding region enclosing the dots: q.e.d. they are visible on the cropped image.
So the question becomes: what principle/rule/heuristic do you want to apply to re-positioning the dots.
Are there any constraints on where the dots are placed initially, or what their relationship is with each spatially ?
Details, please.
« I am putting myself to the fullest possible use which is all, I think, that any conscious entity can ever hope to do » HAL (Heuristically programmed ALgorithmic computer) in "2001, A Space Odyssey"
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Actually these 4 dots represent the four coordinates of a rectangle that I use to crop the image. And yes, the cropped image is bigger than the 4 dots. Now I have no clue what should be done to redraw the dots on the cropped image. (This is knows as "re scaling" perhaps.)
modified 31-Oct-14 3:21am.
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I think my head is a little slow today, so bear with me: if you use the 4 dots to define a rectangle for cropping, and the cropping is performed, do you then need to show the 4 dots after the crop ?
It's a typical convention in UI design for resize/crop "handles" to appear when some run-time object is selected, but perhaps you are working with a different design idea ?
« I am putting myself to the fullest possible use which is all, I think, that any conscious entity can ever hope to do » HAL (Heuristically programmed ALgorithmic computer) in "2001, A Space Odyssey"
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BillWoodruff wrote: I think my head is a little slow today, so bear with me
Well perhaps you are not slow. May be its me who is new to this.
BillWoodruff wrote: ... and the cropping is performed, do you then need to show the 4 dots after the crop
Yes I need to show these points on the cropped picture. Yes the image is cropped. But will the 4 points not be repositioned since first the point was X1Y1 = 640,550 but now after the cropping this point could/should be X1Y1 = 40,50.
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Yes, if you re-position the cropped image, the "dots" will need to be relocated. However, if you did the crop in a way that positioned the cropped image so its new bounding-box was in the same position as that area was in pre-crop, then you would, perhaps, not have to re-position the dots.
If the "dots" are same-sized circles, you'll know that the key offset is the diameter of the circles, and you can re-position based on:
// assuming
private const int diameter = 6;
dotUpperLeft.Location = new Point(image.Left, image.Top);
dotUpperRight.Location = new Point(image.Right - diameter, image.Top);
dotLowerRight.Location = new Point(image.Right - diameter, image.Bottom - diameter);
dotLowerLeft.Location = new Point(image.Left, image.Bottom - diameter);
Does this make sense ?
« I am putting myself to the fullest possible use which is all, I think, that any conscious entity can ever hope to do » HAL (Heuristically programmed ALgorithmic computer) in "2001, A Space Odyssey"
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So, I've got an open question on so
We're experiencing cors issues with signalR resources and I can't imagine that I'm the only one that has had to solve this problem. The "default", documented configuration settings for enabling cors with signalR are
public void Configuration(IAppBuilder app)
{
app.UseCors(CorsOptions.AllowAll);
app.MapSignalR();
}
but CorsOptions.AllowAll configures wildcard Access-Control-Allow-Origin and you cannot specify a wildcard value AND use withCredentials. So I'm investigating what it would take to create a custom Microsoft.Owin.Cors.CorsMiddleware or create a different CorsOptions setting.
Does anyone have an example that replaces
app.UseCors(CorsOptions.AllowAll)
with
app.UseCors("CorsOptions with a CorsPolicy that doesn't specify wildcard origins")
"I need build Skynet. Plz send code"
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so...when the heck did nested object initializers become good form???
(Note that this seems to be the only way to interact with the Origins collection. Once the CorsOptions object is constructed, there is no direct access to the properties on the PolicyResolver)
CorsOptions cors = new CorsOptions
{
PolicyProvider = new CorsPolicyProvider
{
PolicyResolver = context =>
{
var policy = new CorsPolicy
{
AllowAnyOrigin = false,
AllowAnyHeader = true,
AllowAnyMethod = true,
SupportsCredentials = true
};
policy.Origins.Add("http://localhost");
}
}
};
app.UseCors(cors);
"I need build Skynet. Plz send code"
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Hello, here I leave a code to copy a website to generate a text cursor type, but it always returns the text as if it were in Bold, as it could put the text Regular style
#region New_Cursor definition
public struct IconInfo
{
public bool fIcon;
public int xHotspot;
public int yHotspot;
public IntPtr hbmMask;
public IntPtr hbmColor;
}
public void New_Cursor(string text)
{
Font drawFont = new Font("Verdana", 9);
SolidBrush drawBrush = new SolidBrush(Color.Black);
Bitmap bitmap = new Bitmap(100, 25);
Graphics g = Graphics.FromImage(bitmap);
g.DrawString(text, drawFont, drawBrush, 0,0);
this.Cursor = CreateCursor(bitmap, 3, 3);
bitmap.Dispose();
}
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool GetIconInfo(IntPtr hIcon, ref IconInfo pIconInfo);
[DllImport("user32.dll")]
public static extern IntPtr CreateIconIndirect(ref IconInfo icon);
public static Cursor CreateCursor(Bitmap bmp, int xHotSpot, int yHotSpot)
{
IntPtr ptr = bmp.GetHicon();
IconInfo tmp = new IconInfo();
GetIconInfo(ptr, ref tmp);
tmp.xHotspot = xHotSpot;
tmp.yHotspot = yHotSpot;
tmp.fIcon = false;
ptr = CreateIconIndirect(ref tmp);
return new Cursor(ptr);
}
#endregion New_Cursor definition
modified 30-Oct-14 11:26am.
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Why leave it here? What would we want with it?
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If you're trying to leave a tip/trick or a hint on how to do something, this code is very poorly written and leaks resources.
If you're trying to ask a question, you never specified what the problem is or even attempted to ask a question about the code.
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