Delphi is a standalone object-oriented programming language derived from Object Pascal. Currently, its main target platform is Microsoft. NET.
Instructions
Step 1
Choose a compiler to perform operations in Delphi. You can use Free Pascal, Embarcadero Delphi, Oxygene, Virtual Pascal, Pocket Studio, Virtual Pascal, GNU Pascal, and so on depending on the conditions given to you. The most famous and widely used compiler today is Embarcadero Delphi.
Step 2
To draw a line in Delphi, use one of the most famous construction algorithms - Bresenham's Algorithm, based on determining the points of a two-dimensional raster that must be shaded to obtain the most straight line between two given points. The method is more relevant for drawing horizontal and vertical lines that do not require special anti-aliasing. This algorithm is also relevant when constructing circles, the speed of its execution is often quite high. The implementation of this kind of algorithm in Object Pascal is as follows (see the figure for the step)
Step 3
If you want to draw a line in Delphi with maximum anti-aliasing, use Wu's algorithm for this. Its meaning is to decompose the line of the segment into a raster using anti-aliasing. Its advantage is in the high quality of the lines, as well as the execution speed is quite high, therefore it is recommended to use it when it is necessary to draw diagonal lines. Its execution in the code for the x-axis looks like this (see the figure for the step)
Step 4
Also, to draw lines in Delphi, you can use other methods, for example, download ready-made templates from the Internet. In doing so, check for errors that may have been made by the authors. Pay attention to the presence of other algorithms. They are not as wide in application as the two described above and are more likely to fit certain preset parameters that are encountered in practice less often than the cases described above.
