Crazy Graphics (using C # + GDI Plus to simulate cluttered real-world scenarios)

Original: Crazy Graphics (using C # + GDI Plus to simulate cluttered reality scenarios)

This paper gives the key codes of simulating bamboo leaves, long blumei, messy stones, and stars in the sky. Use. NET environment in C # language, GDI + is written.

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Imitation bamboo leaves

Kinda like that, huh? Who says not like, I with who urgent!

Key parameters

int mincorners = 3;
int maxcorners = 4;

Pointf[] points = stone.createstone (new point ((int) (Perx * j), (int) (Pery * i)), (int) (Perx * 1.4f), (int) (Perx * 0.009f), corners);

Simulating long ye Qing grass

To tell the truth, this is not very similar, too neat, should be more chaotic point.

Key parameters

int mincorners = 20;
int maxcorners = 38;

Pointf[] points = stone.createstone (new point ((int) (Perx * j), (int) (Pery * i)), (int) (Perx * 0.88f), (int) (Perx * 0.01f), corners);
G.fillclosedcurve (Brushes.green, points, fillmode.winding);

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Simulation of irregular stones

This one...... How do some of the stones always come out a little bit more, as if the stone grows grass? If you find out, it means you are a careful person. On the contrary, say you are careless not too, haha!

Key parameters:

int mincorners = 3;
int maxcorners = 4;

Pointf[] points = stone.createstone (new point ((int) (Perx * j), (int) (Pery * i)), (int) (Perx * 0.4f), (int) (Perx * 0.396f), corners);
G.fillclosedcurve (Brushes.gray, points, fillmode.winding);

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Stars in the sky, sparkling

Key parameters:

int mincorners = 3;
int maxcorners = 4;

Pointf[] points = stone.createstone (new point ((int) (Perx * j), (int) (Pery * i)), (int) (Perx * 0.18f), (int) (Perx * 0.06f), corners);
G.fillclosedcurve (Brushes.white, points, fillmode.winding);

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Key code:

Using System;
Using System.Collections.Generic;
Using System.Drawing;
Using System.Text;

Namespace ZPXP.Com.Util
{
??? public static Class Stone
??? {
??????? public static pointf[] Createstone (Point center, int Outerradius, int inner_radius, int arms)
??????? {
??????????? int center_x = center. X
??????????? int center_y = center. Y
??????????? Pointf[] points = new pointf[arms * 2];
??????????? Double offset = MATH.PI/2;
??????????? Double arc = 2 * math.pi/arms;
??????????? Double half = ARC/2;
??????????? Double angle = 0;
??????????? for (int i = 0; I < arms; i++)
??????????? {
??????????????? Random randomouter = new Random ((int) DateTime.Now.Ticks);
??????????????? Outerradius = Outerradius-randomouter.next ((int) (Inner_radius * 0.06 * new Random (). Next ( -20,20)/30d), (int) (Inner_radius * 0.08));
??????????????? Outerradius = Outerradius-randomouter.next ((int) (Inner_radius * 0.16 * new Random (). Next ( -20, +)/30d), (int) (Inner_radius * 0.18));
??????????????? Random randominner = new Random (Guid.NewGuid (). GetHashCode ());
??????????????? Inner_radius = Inner_radius + randominner.next ((int) (Inner_radius * 0.02 * New Random (). Next ( -100,100)/150d), (int) (Inner_radius * 0.08));
??????????????? Inner_radius = Inner_radius + randominner.next ((int) (Inner_radius * 0.02 * New Random (). Next ( -100, 150d), (int) (Inner_radius * 0.22));
??????????????
??????????????? if (Inner_radius > Outerradius)
??????????????? {
??????????????????? int temp = Outerradius;
??????????????????? Outerradius = Inner_radius;
??????????????????? Inner_radius = temp;
??????????????? }
??????????????? Double angletemp = arc * Randominner.next ( -5, 5)/10d;
??????????????? Angle = i * arc;
??????????????? Angle + = angletemp;
??????????????? Points[i * 2]. X = (float) (center_x + math.cos (angle-offset) * Outerradius);
??????????????? Points[i * 2]. Y = (float) (center_y + math.sin (angle-offset) * Outerradius);
??????????????? Points[i * 2 + 1]. X = (float) (center_x + math.cos (angle + half-offset) * Inner_radius);
??????????????? Points[i * 2 + 1]. Y = (float) (center_y + math.sin (angle + half-offset) * Inner_radius);
??????????? }

??????????? return points;
??????? }

??? }
}

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Code for testing:

private void Button3_Click (object sender, EventArgs e)
??????? {
??????????? int width = 500;
??????????? int height = 500;
??????????? int x = 0;
??????????? int y = 0;
??????????? int numx = 10;
??????????? int numy = 10;
??????????? float Perx = width * 1F/NUMX;
??????????? float Pery = height * 1f/numy;
??????????? Bitmap image = New Bitmap (width, height);
??????????? Graphics g = graphics.fromimage (image);

??????????? g.compositingquality = compositingquality.highquality;
??????????? G.smoothingmode = smoothingmode.highquality;
??????????? G.interpolationmode = Interpolationmode.highqualitybicubic;

??????????? G.fillrectangle (Brushes.black, New Rectangle (0,0, width, height));

??????????? int mincorners = 3;
??????????? int maxcorners = 18;
??????????? int lastcorners = mincorners;
??????????? for (int i = 0; i < numx; i++)
??????????? {
??????????????? for (int j = 0; J < Numy; J + +)
??????????????? {
??????????????????? Long tick = DateTime.Now.Ticks;
??????????????????? Random random = new Random ((int) (tick & 0xFFFFFFFF) | (int) (tick >> 32));
??????????????????? int corners = Random. Next (Mincorners, maxcorners);
??????????????????? if (Math.Abs (Corners-lastcorners) < (maxcorners-mincorners)/2) corners = Retrievrandomcorners (minCorners, MaxCorn ERS);
??????????????????? Lastcorners = corners;
??????????????????? Pointf[] points = stone.createstone (new point ((int) (Perx * j), (int) (Pery * i)), (int) (Perx * 0.9f), (int) (Perx * 0.8f), corners);
??????????????????? pointf[] points = stone.createstone (new point ((int) (Perx * j), (int) (Pery * i)), (int) (Perx * 0.18f), (int) (Perx * 0.06f), corners);
??????????????????? G.fillclosedcurve (Brushes.white, points, fillmode.winding);
??????????????? }
??????????? }

??????????? Picencode.image = Image;

??????? }

??????? private int retrievrandomcorners (int mincorners, int maxcorners)
??????? {
??????????? return new Random (Guid.NewGuid (). GetHashCode ()). Next (Mincorners, maxcorners);
??????? }

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Crazy Graphics (using C # + GDI Plus to simulate cluttered real-world scenarios)