Mandatory part - 2d representation of 3d coordinates in isometric projection. This is enough for the successful project validation.
Bonus part - my imagination. Here is a list of bonuses, that I added to my project:
- Rotating the map in all 3 axes. Bonus, which includes all types of projections, like parallel, iso, conic etc.
- Real time parameters changing ( such as angle of tilt and rotate ) using the keyboard, with fast recalculating and smooth redrawing scene.
- Color and gradient support.
- The ability to read up to 9 files with maps in the same time, and switch between them in real time ( like tabs ).
Allowed libraries:
math ( includes the most common mathematical functions ),
miniLibX ( x-window interface library ).
Allowed functions:
open, read, write, close, malloc, free, perror, strerror, exit.
This project is about creating a simplified graphic “wireframe” representation of a relief landscape linking various points
(x, y, z) via segments. The coordinates of this landscape are stored in a file passed as
a parameter to program. Here is an simple example:
Each number on the map corresponds to a point in space:
- The horizontal position corresponds to its axis,
- The vertical position corresponds to its ordinate,
- The value corresponds to its altitude.
All these points must be connected by lines. For this, I used the Bresenham's line algorithm, which allows me to calculate all the pixels that must be color-coded to form a line between two points in space.
And now it is time for magic, which was achieved with the rotation matrix. Multiplying the rotation matrices around different axes, I got a universal matrix that allowed me to efficiently and quickly calculate/recalculate all points in space. Here is some examples:
Here is some examples:
