Straight Line Equation between two points

Posted by dafero on Stack Overflow See other posts from Stack Overflow or by dafero
Published on 2010-06-14T16:58:06Z Indexed on 2010/06/14 17:02 UTC
Read the original article Hit count: 243

Filed under:

line

|

paint

|

points

Hi, I need to paint the line witch links two points.

I developed my own solution using the straight line equation, but my results are different than using the "professional" programs (such as GIMP or even MS Paint).

Here is a example of what I want: alt text

But my algorithm does this: alt text

*The green point is out of the figure and this is not possible.

Any ideas? Anyone know which code is been using for this, in "professional" apps?

Thanks! Daniel.

© Stack Overflow or respective owner

Related posts about line

Server.transfer causing HttpException

as seen on Stack Overflow - Search for 'Stack Overflow'
I am developing a C#/SQL ASP.NET web application in VS 2008. Currently I am using the Server.Transfer method to transfer control from one ASPX.CS file to another ASPX file. The first time through, this works. But after control is transferred to this new file it encounters a condition: if (restart… >>> More
EMERGENCY - Major Problems After Perl Module Installed via WHM

as seen on Stack Overflow - Search for 'Stack Overflow'
I attempted to install the perl module Net::Twitter::Role::API::Lists using WHM and after doing so my whole site came down. It seems that something that was updated with the install isn't functioning correctly and since our website it written in Perl none of our site scripts will run. In almost 8… >>> More
Plone: Creating new Page fails "AttributeError: 'str' object has no attribute 'dates'"

as seen on Stack Overflow - Search for 'Stack Overflow'
I just installed Plone on my Centos 5.5. I was able login via the admin-account and create new users. But when I try to create a new page I get the following error message: Traceback (innermost last): Module ZPublisher.Publish, line 127, in publish Module ZPublisher.mapply, line 77, in mapply Module… >>> More
How can I build pyv8 from source on FreeBSD against the v8 port?

as seen on Server Fault - Search for 'Server Fault'
I am unable to build pyv8 from source on FreeBSD. I have installed the /usr/ports/lang/v8 port, and I'm running into the following error. It seems that pyv8 wants to build v8 itself even though v8 is already built and installed. How can I point pyv8 to the already installed location of v8? #… >>> More
Compute average distance from point to line segment and line segment to line segment

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi everyone, I'm searching for an algorithm to calculate the average distance between a point and a line segment in 3D. So given two points A(x1, y1, z1) and B(x2, y2, z2) that represent line segment AB, and a third point C(x3, y3, z3), what is the average distance between each point on AB to point… >>> More

Related posts about paint

Architecture of interaction modes ("paint tools") for a 3D paint program

as seen on Programmers - Search for 'Programmers'
We are developing a Qt-based application to navigate through and paint on a volume treated as a 3D pixel graphic. The layout of the app consists of three orthogonal slice views on which the user may paint stuff like dots, circles etc. and also erase already painted pixels. Think of a 3D Gimp or MS… >>> More
adding onTap method on path direction between 2 point

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a problem in my Android application I have a path direction on my application and I want to add an onTap method for the path, so if I touch that path my application will display information with alert dialog. This my activity code: hasilrute hr = new hasilrute(); for (int k = 0;k < hr… >>> More
select a diagonal area in paint.net

as seen on Super User - Search for 'Super User'
In Paint.net, is it possible to select a quadrilateral area with diagonal faces? How? >>> More
To make the drawn text clear

as seen on Stack Overflow - Search for 'Stack Overflow'
I have written the code to draw text on the image and to save the image,But the text which I am drawing is looking blur on the image.What modifications need to do to make it clear,Or if there is any other way to draw text on image in android Canvas canvas = new Canvas(photo); Typeface… >>> More
Starting Your Own Website - Paint by Numbers is the Beginner's Way to Go

as seen on Ezine Articles - Search for 'Ezine Articles'
Fancy starting your own website, perhaps a blog or article page, why not? Seems everyone has some form of online profile these days for various reasons, keeping in contact, self or business promotion, becoming a advocate and many other. >>> More