adding road to my application

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mataarsak

adding road to my application

in General Discussion • Other • 1 year ago

I want to draw a road for my application .

I have this formula : a0 + a1*x + a2*x^2 + a3*x^3 for drawing the road . and a0, a1 and ... values for the closest left / right side of the road . so what I'll basically draw will be several lines that makes the road .

how could I draw the road using that formula ?

after drawing all of the line of the road how could I add the color to that ? because it's not a specific shape !

Replies(1)

Chrisir

Re: adding road to my application

1 year ago

you could think along those lines...

Greetings, Chrisir

float lerpSteps = 20.0;
int [] streetData = {
100, 110, 120, 122, 120, 110, 100, 100, 100, 100, 95, 98, 95, 94, 94, 94, 94, 94, 94, 100
};
void setup () {
size (700, 400);
}// func
void draw() {
int xValueStreet=0;
// read street data
for (int i = 0; i<streetData.length-1; i++) {
// lengthen the way between 2 points
for (int j=0; j<=lerpSteps; j++) {
// calculate left and right side of the road
float y1 = lerp(streetData[i]-10, streetData[i+1]-10, j/lerpSteps);
float y2 = lerp(streetData[i]+10, streetData[i+1]+10, j/lerpSteps);
// connect left and right side of the road with a line (filling the road)
stroke(222, 2, 2);
line (xValueStreet, y1, xValueStreet, y2);
// paint the border blue
stroke(2, 2, 222);
point(xValueStreet, y1);
point(xValueStreet, y2);
xValueStreet++;
}
//
//stroke(255, 1, 1);
//line (i, streetData[i]*1-10, i+1, streetData[i+1]*1-10);
//line (k, streetData[i]*1-10, k+10, streetData[i+1]*1-10);
//
//point(k, streetData[i]-10);
//point(i, streetData[i]+10);
}// for
}// func

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