# solidpolygon

This function is used to draw a filled polygon without a border.

void solidpolygon(
const POINT *points,
int num
);

## Parameters

### points

The coordinates of each point, the number of array elements is num.
The function automatically connects the polygon to the end.

### num

The number of polygon vertices.

None

## Remarks

The function draws a filled polygon without a border using the current fill style.

## Examples

The following snippet draws a closed fill triangle (two methods):

// method 1
POINT pts[] = { {50, 200}, {200, 200}, {200, 50} };
solidpolygon(pts, 3);
// method 2
int pts[] = {50, 200,  200, 200,  200, 50};
solidpolygon((POINT*)pts, 3);

The following full code draws a five-pointed star

#include <graphics.h>
#include <conio.h>
#include <math.h>

#define PI 3.14159265359

int main()
{
// Create a graphics window.
initgraph(640, 480);

// Define an array to hold five vertex coordinates for a pentastar
POINT pts[5];

// Calculate the five vertex coordinates of a pentastar
double a = PI / 2;
for (int i = 0; i < 5; i++)
{
pts[i].x = int(320 + cos(a) * 100);
pts[i].y = int(240 - sin(a) * 100);
a += PI * 4 / 5;
}

// Set fill mood to WINDING.
setpolyfillmode(WINDING);
// Set the fill color to red
setfillcolor(RED);
// Draw a five-pointed star (no border)
solidpolygon(pts, 5);

// Press any key to exit.
_getch();
closegraph();
}
（贡献者：慢羊羊  编辑