simple line drawing algorithm
DDA Line Drawing Algorithm Part-2 httpsyoutubeua6lGnqtL0QMyself Shridhar Mankar a Engineer l YouTuber l Educational Blogger l Educator l Podcaster. Draw a line from x1 y1 to x2 y2.
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M 6-0 4-0 64 which is more than 1.
. DDA Algorithm is the simplest line drawing algorithm. Draw a line from x1 y1 to x2 y2. Enter value of x 1y 1x 2y 2.
It is more suitable for generating line using the software. Set R Round H Plot the point at RC on the screen. Step 1 Input the two end-points of line storing the left end-point in x 0 y 0.
Let the two end points of a line be P1 x1 y1 and P2 x2 y2. Show activity on this post. Let R represent the row and C the column.
Xmax x2. Declare x 1y 1x 2y 2dxdyxy as integer variables. Assume that the slope is greater than 1.
We draw a line from lower left to upper right. Towards a Line Drawing Algorithm For now well deal with the simple case where x0 x1 y0 y1 0. This algorithm is used in computer graphics for drawing line.
Slope m 6-0 4-0 64. P 0 2 d y d x. Xk1 yk1 xk1 yk1 Step 5.
There are three line drawing algorithms in computer graphics. Float xmin xmax. Calculate dx x 2-x 1.
Set xmin to the lower x value given and xmax to the higher value if x1 x2 xmin x1. Else xmin x2. To draw the line in terms of the x dimension we must first figure out the minimum and maximum x values that were passed to the function since x2 may be lower than x1 and vice versa.
Xmax x1. Assume that the slope is greater than 1. Calculate the pixels of the line as previously.
Set C Round xa Let F Round xb Let H ya. Consider one point of the line as X0Y0 and the second point of the line as X1Y1. If ABS dx ABS dy Then step abs dx.
The line equation describes the coordinates of all. Calculate dy y 2-y 1. Thats what Bresenhams line-drawing algorithm is all about.
Bresenhams Line Drawing Algorithm in C and C. Step 3 Calculate the constants dx dy 2dy and 2 d y 2 d x and get the first value for the decision parameter as. Basic Line Drawing Algorithm.
Calculate dx dy dx X1 - X0. If equal then plot that point and exit 2. There are three line drawing algorithms in computer graphics.
DDA algorithm Digital Differential Analyzer Midpoint algorithm. Line drawing algorithms are used to draw a line in discrete graphical media. Find the slope m.
The program will work in Turbo C or Turbo C compiler as it uses graphicsh header file. In computer graphics a line drawing algorithm is an algorithm for approximating a line. Increment C C1 If C.
There are following algorithms used for drawing a line. Draw a line using DDA Algorithm from 00 to 46 This case is for slope m greater than 1. Here you will get program for bresenhams line drawing algorithm in C and C.
Make sure to change the path of BGI folder inside initgraph function according to your system. You can define a line by its two end points and by the line equation y mx c where m is called the slope and c the y intercept of the line. Dy Y1 - Y0.
But it is less suited for hardware implementation. Use Bresenhams algorithm on y1 x1 to y2 x2. As m 64 is greater than 1 therefore y is increased and x is calculated.
Now for generating any line segment we need intermediate points and for calculating them we can use a basic algorithm called DDA Digital differential analyzer line generating algorithm. Step 2 Plot the point x 0 y 0.
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