The Surface Points
Generator can be used to generate a surface point array with the help of **Mathematical
Expressions**.
All objects in Texture Maker
need two surface points, that define the object's parameters like for
example a rectangle's corners. The two points are defined by the ** (x1,y1)** and
** (x2,y2)** expressions. You can use ** x1** and ** y1**
as input variables in the ** x2** and ** y2** expressions, but not vice versa.
The point creation is controlled by two loop-variables, ** n** and **i**.
The values of these two variables are always between *0* and *1*,
when rendering the points. **n** is increased at each loop and ** i** marks the position within a loop.
**Example**:
*
n = 10*
i = 10
x1 = i
y1 = n
x2 = x1 + 0.1
y2 = y1 + 0.1
This configuration will render objects at
*10* (**n**) lines with *10* (**i**)
columns each. The second point ** (x2,y2)** of these objects is just
the displaced first point. The displacement (which is done with the *+0.1*
statement) is *10* percent to the right and *10* percent down. |