Hello, there,
I have no idea how to draw an ellipse with an rotated
angle. For example, the ellipse's center is (20.0, 50.0),
two conjugate diameter pairs end-point are (35.0, 35.0),
(25.0, 55.0). I hope to use win32 API functions to finish
this drawing. Is it possible?
Please help me giving your suggestion. Tks.
4  9638 
Graphics.Rotate Transform Method
"Shalley" <xl***@towson.e du> wrote in message
news:2d******** *************** *****@phx.gbl.. . Hello, there,
I have no idea how to draw an ellipse with an rotated
angle. For example, the ellipse's center is (20.0, 50.0),
two conjugate diameter pairs end-point are (35.0, 35.0),
(25.0, 55.0). I hope to use win32 API functions to finish
this drawing. Is it possible?
Please help me giving your suggestion. Tks.
Shalley,
In addition to One Handed Man's comment about Graphics.Rotate Transform, you
may need to take into account Graphics.ScaleT ransform &
Graphics.Transl ateTransform (TranslateTrans form more so than
ScaleTransform) .
RotateTransform will rotate about the current origin, TranslateTransf orm
moves the current origin.
I find Charles Petzold's book "Programmin g Microsoft Windows with Microsoft
Visual Basic .NET" from MS Press to be very helpful in unraveling the
subtleties of GDI+.
Just remember order of operations is important while doing transforms in
GDI+.
Hope this helps
Jay
"Shalley" <xl***@towson.e du> wrote in message
news:2d******** *************** *****@phx.gbl.. . Hello, there,
I have no idea how to draw an ellipse with an rotated
angle. For example, the ellipse's center is (20.0, 50.0),
two conjugate diameter pairs end-point are (35.0, 35.0),
(25.0, 55.0). I hope to use win32 API functions to finish
this drawing. Is it possible?
Please help me giving your suggestion. Tks.
Hello,
"Jay B. Harlow [MVP - Outlook]" <Ja********@ema il.msn.com> schrieb: Just remember order of operations is important while doing
transforms in GDI+.
That depends on the type of the operations.
;-)
--
Herfried K. Wagner
MVP · VB Classic, VB.NET http://www.mvps.org/dotnet
Herfried, That depends on the type of the operations.
And if you use the MatrixOrder parameter & which MatrixOrder option. ;-)
Later
Jay
"Herfried K. Wagner [MVP]" <hi*******@m.ac tivevb.de> wrote in message
news:up******** *****@tk2msftng p13.phx.gbl... Hello,
"Jay B. Harlow [MVP - Outlook]" <Ja********@ema il.msn.com> schrieb: Just remember order of operations is important while doing
transforms in GDI+.
That depends on the type of the operations.
;-)
--
Herfried K. Wagner
MVP · VB Classic, VB.NET
http://www.mvps.org/dotnet
This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
by: rzed |
last post by:
I'm using PIL to generate some images which may be rotated at the
user's option. When they are rotated, the original image is cropped
in the new image (which is fine), and the corners are black (which
is not, in this case). I can't find any documented way to change
the default fill color (if that's what it is) for the corners, and
PIL also doesn't seem to support a flood fill. I have created a
flood fill in Python, which works but which...
|
by: faustino Dina |
last post by:
Hi,
I was looking on the SDK but I can't find how to draw text in angles
different from 0 and 90. Is it possible? If not, does exist some 3rd party
library allowing this? Any hint is welcomed
Thanks in advance
Faustino
|
by: Nanda |
last post by:
hi,
try this,
bmp=new Bitmap(Width,Height);
g=Graphics.FromImage(bmp);
g.DrawEllipse(Pens.Red, new Rectangle(0, 0, 100, 100));
g.Save();
bmp.Save(filename,System.Drawing.Imaging.ImageFormat.Gif);
HTH,
|
by: zxo102 |
last post by:
Hi everyone,
I have tried two days to figure out how to draw the image in
wx.BufferedDC on the page created by AddPage of wx.Notebook but still
got no clue.
The attached example works fine. If I click the menu "Draw" --"New
Drawing". The image with wx.BufferedDC/wx.BufferedPaintDC can move
around on the frame. But If I uncomment those three commented lines in
"class TestFrame" to add a new page (from wx.Notebook) with a tag and
modify...
|
by: lgeastwood |
last post by:
I have tweaked the PictureBox97.mdb (Stephen Lebans <www.lebans.com>)
code to nicely draw lines, rectangles and circles to the specs that I
input.
I'm at a loss though with trying to setup an Ellipse Drawing Function.
The following code I found on Google works in VB5 and draws an ellipse
shape no problem using the Circle Method.
Private Sub cmdDrawEllipse_Click()
Dim X As Long, Y As Long
Dim ElipseWidth As Integer, ElipseHeight As...
| | |
by: Smokey Grindel |
last post by:
I want to draw a string that is at a 90 degree angle instead of left to
right it would be rotated 90 degrees... how would you go about doing this?
thanks!
|
by: Christopher Ireland |
last post by:
Hello!
Using the definition for en ellipse (http://en.wikipedia.org/wiki/Ellipse) I
can draw an arc of points. However, the end points of this arc do not
coincide with the end points of an arc drawn with the DrawArc method, e.g.
public partial class Form2 : Form
{
public Form2()
{
|
by: weird0 |
last post by:
I wanted to draw an ellipse using c# with System.Drawing.Graphics. I
tried out several tutorials and none of them worked and there seems to
be something missing. One did execute without any errors but it did
not render an ellipse on the form.
I want to create an ellipse with just a new project with one form
default, that is Form1. I want the draw ellipse function to be in some
other class,say Shapes( user-defined) and then call it in the...
|
by: Slickuser |
last post by:
I am trying to draw an ellipse with specify x,y,width, and height for
input argument in C# .net (Visual Studio 2005).
It seem it will not draw for me. What am I missing?
See the code below, thanks.
//CODE
|
by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
|
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
| | |
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
|
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
|
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
| | |
by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
| |
