| |
by: instruo |
last post by:
I'm using the System.Drawing.Bitmap class for loading a 32-bit bmp file which
includes an alpha channel.
The problem is, when it gets loaded (just using the Bitmap(string filename)
constructor), it doesn't bother bringing the alpha along with it. All of the
pixels just show "255" as their alpha value and Bitmap.IsAlphaPixelFormat()
returns false.
I know that the alpha does exist physically and has worked with this exact
image in other...
|
by: Ron Dahl |
last post by:
Thanks Robby and Bob Powell for excellent answers on yesterday's question
about reversing coordinates in gdi+
I guess this is a new question.
My first step is that my bitmap is an aerial photograph of an agricultural
field. I use the .getpixel method to search for a certain color, then I
make a polygon around that color (weeds, high yield areas, etc.)
My bitmap is 440x 440.
|
by: Nathan Sokalski |
last post by:
I am having a problem saving an image with the same name it originally had. I have two similar versions of my code, one in which I close the FileStream used to open the original image before saving, the other in which I close the FileStream afterwards, although both return the same error. Here are the two versions of the code and the errors they each return (NOTE: I rebooted immediately before running each of these versions so that I knew they...
|
by: BSOB |
last post by:
im gone for a long weekend so plenty of time for anyone to answer.
if i have 4 points representing a polygon and each point is represented by an x and a y coordinate, is there an easy (or slightly less painfull) way to decide whether or not a point (a,b) lays within that polygon?
please note that this polygon DOES NOT take the shape of a square and has NO right angles and all side lengths are somewhat random.
the application:
say i...
|
by: Jon Slaughter |
last post by:
Why did microsoft seal these classes? I would like to add coordinate
information to these classes but I can't derive from them ;/ It makes me
wonder why microsft choose to prevent anyone from deriving from many
classes.
I can simply do
class MyBitmap
{
public Bitmap B;
|
| |
by: jojo41300000 |
last post by:
Hi,
Is anyone know that how to get the x and y points inside the polygon using C++ program?
I have the given polygon data to draw the polygon, but i don't know how to get all the points inside the polygon.
Eg. Let's say we have 5 points to draw a polygon.
Polygon
---------------------
|
by: friendkitty |
last post by:
Hi All,
I m a new member here.I am now writing a program that render Vertex Normals.I m now trying to implement a data structure that will best suit computing vertex normals.For that computation , my data structure should have accessed to the faces adjacent to each vertices.
first i read all vertices ,and faces from .m file into a structure.And stored in vectors.
vector<Vertex> vertices;
vector<Face> faces;
Then i render that model.No...
|
by: Joe Duchtel |
last post by:
Hello -
I have the following code to get a bitmap from the clipboard and to
save it to a *.png file ...
Dim lData As IDataObject = Clipboard.GetDataObject()
If lData.GetDataPresent(DataFormats.Bitmap) Then
Dim lPictureBox As New PictureBox
|
by: jpatchak |
last post by:
Hello,
I am having a problem using intersects method of a class I made that extends Polygon. Basically, I am trying to write code that allows the user to drag these polygons. I create a 1x1 rectangle on a mouse press and look through an array to see if the rectangle intersects the polygon. If it does, then I call the polygon's move class, passing the x and y coordinates while the user is dragging. Problem is that it works the first time,...
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
|
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: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
|
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: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
|
| |
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...
|
