private void numericUpDown1_ValueChanged(object sender, EventArgs e)
{
double t = 0, n;
int x_v, y_v, x, y, x0, y0;
System.Drawing.Graphics Desen;
Desen = this.CreateGraphics();
System.Drawing.Pen Creion_albastru = new System.Drawing.Pen(System.Drawing.Color.Blue);
Desen.Clear(this.BackColor);
x0 = (this.Width - 50) / 2; //jumatatea formularului
y0 = (this.Height - 50) / 2;
n = System.Convert.ToDouble(this.numericUpDown1.Value); //numar spirale
x_v = System.Convert.ToInt16(x0 + x0 * System.Math.Cos(n * t) * System.Math.Cos(t));
y_v = System.Convert.ToInt16(y0 + y0 * System.Math.Cos(n * t) * System.Math.Sin(t));
do
{
x = System.Convert.ToInt16(x0 + x0 * System.Math.Cos(n * t) * System.Math.Cos(t));
y = System.Convert.ToInt16(y0 + y0 * System.Math.Cos(n * t) * System.Math.Sin(t));
//Desen.DrawLine(Creion_albastru, x_v, y_v, x, y);
x_v = x;
y_v = y;
t += 0.001;//Rotunjimea
do
{
x = System.Convert.ToInt16(x0 + x0 * System.Math.Cos(n * t) * System.Math.Cos(t));
y = System.Convert.ToInt16(y0 + y0 * System.Math.Cos(n * t) * System.Math.Sin(t));
Desen.DrawLine(Creion_albastru, x_v, y_v, x, y);
x_v = x;
y_v = y;
t += 0.001;//Rotunjimea
}while (t <= 6.3);
}while (t <= 6.3);
}
private void Form1_Click(object sender, EventArgs e)
{
System.Drawing.Graphics Desen;
System.Drawing.Pen Creion_albastru;
Desen = this.CreateGraphics();
Creion_albastru = new System.Drawing.Pen(System.Drawing.Color.Blue);
Desen.DrawLine(Creion_albastru, mouse_rel_x() - 4, mouse_rel_y(), mouse_rel_x() + 4, mouse_rel_y());
Desen.DrawLine(Creion_albastru, mouse_rel_x(), mouse_rel_y() - 4, mouse_rel_x(), mouse_rel_y() + 4);
}
private void Form1_Paint(object sender, PaintEventArgs e)
{
int i = 0, lat, h;
float x, ymax, y = 0, y_v = 0, k;
System.Drawing.Graphics Desen;
Desen = this.CreateGraphics();
System.Drawing.Pen Creion_gri_d;
Creion_gri_d = new System.Drawing.Pen(System.Drawing.Color.LightGray);
System.Drawing.Pen Creion_gri;
Creion_gri = new System.Drawing.Pen(System.Drawing.Color.Gray);
Desen.Clear(this.BackColor);
System.Drawing.Pen Creion_rosu;
Creion_rosu = new System.Drawing.Pen(System.Drawing.Color.Red);
//Grid
// linii verticale
for (i = 0; i <= this.Width; i += 10)
{
if (i % 50 == 0)
{
Desen.DrawLine(Creion_gri, i, 0, i, this.Height);
}
else
{
Desen.DrawLine(Creion_gri_d, i, 0, i, this.Height);
}
}
// linii orizontale
for (i = 0; i <= this.Height; i += 10)
{
if (i % 50 == 0)
{
Desen.DrawLine(Creion_gri, 0, i, this.Width, i);
}
else
{
Desen.DrawLine(Creion_gri_d, 0, i, this.Width, i);
}
}
// Trasare grafic x*x
h = this.Height - 50;
i = 0;
lat = this.Width - 20;
ymax = (lat / 2) * (lat / 2); // ymax pe intervalul -lat/2... lat/2 este (lat/2)^2
k = h / ymax; // factorul de scala
for (x = -lat / 2; x <= lat / 2; x++)
{
y = h - k * x * x; // y=k*x^2
Desen.DrawLine(Creion_rosu, i - 1, y_v, i, y);
y_v = y;
i += 1;
}
}
private void Form1_Paint(object sender, PaintEventArgs e)
{
int i = 0;
System.Drawing.Graphics Desen;
Desen = this.CreateGraphics();
System.Drawing.Pen Creion_albastru;
Creion_albastru = new System.Drawing.Pen(System.Drawing.Color.Blue);
do
{
Desen.DrawLine(Creion_albastru, this.Width / 2, 0, i, this.Height - 30);
i += 10;
}while (i <= this.Width);
}
private void Form1_Paint(object sender, PaintEventArgs e)
{
int i = 0;
System.Drawing.Graphics Desen;
Desen = this.CreateGraphics();
System.Drawing.Pen Creion_blue;
Creion_blue = new System.Drawing.Pen(System.Drawing.Color.DeepSkyBlue);
Desen.Clear(this.BackColor);
do
{
int factor_s = this.Height / 2 - 22;
int y = System.Convert.ToInt16(5 + factor_s * (1 - System.Math.Sin(0.0314 * i)));
Desen.DrawLine(Creion_blue, i, this.Height, i, y);
i += 2;
}while (i <= this.Width);
}
private void Form1_Paint(object sender, PaintEventArgs e)
{
System.Drawing.Graphics Desen;
Desen = this.CreateGraphics();
System.Drawing.Pen Creion_albastru;
Creion_albastru = new System.Drawing.Pen(System.Drawing.Color.Blue);
System.Drawing.SolidBrush Pensula_roz;
Pensula_roz = new System.Drawing.SolidBrush(System.Drawing.Color.Pink);
Desen.FillRectangle(Pensula_roz, 100, 60, 300, 300);
Desen.DrawRectangle(Creion_albastru, 105, 65, 290, 290);
Desen.DrawEllipse(Creion_albastru, 105, 65, 290, 290);
Desen.DrawEllipse(Creion_albastru, 145, 65, 200, 290);
Desen.DrawLine(Creion_albastru, 250, 65, 250, 355);
Desen.DrawLine(Creion_albastru, 105, 65, 395, 355);
Desen.DrawLine(Creion_albastru, 105, 355, 395, 65);
Desen.DrawLine(Creion_albastru, 105, 210, 395, 210);
}
private void Form1_Paint(object sender, PaintEventArgs e)
{
int i = 0;
System.Drawing.Graphics Desen;
Desen = this.CreateGraphics();
System.Drawing.Pen Creion_gri_d;
Creion_gri_d = new System.Drawing.Pen(System.Drawing.Color.LightGray);
System.Drawing.Pen Creion_gri;
Creion_gri = new System.Drawing.Pen(System.Drawing.Color.Gray);
Desen.Clear(this.BackColor);
// linii verticale
while (i <= this.Width)
{
if (i % 50 == 0)
{
Desen.DrawLine(Creion_gri, i, 0, i, this.Height);
}
else
{
Desen.DrawLine(Creion_gri_d, i, 0, i, this.Height);
}
i += 10;
}
// linii orizontale
i = 0;
while (i <= this.Height)
{
if (i % 50 == 0)
{
Desen.DrawLine(Creion_gri, 0, i, this.Width, i);
}
else
{
Desen.DrawLine(Creion_gri_d, 0, i, this.Width, i);
}
i += 10;
}
}
private void Form1_Paint(object sender, PaintEventArgs e)
{
int x1, y1, w, h;
int nr_s = 20;
System.Drawing.Graphics Desen;
Desen = this.CreateGraphics();
System.Drawing.Pen Creion_g;
Creion_g = new System.Drawing.Pen(System.Drawing.Color.LightGray, 2);
System.Random n = new System.Random();
Desen.Clear(this.BackColor);
x1 = 0;
do
{
y1 = 0;
w = 3 + n.Next(12);
h = n.Next(this.Height);
Desen.DrawLine(Creion_g, x1, y1, x1 + w / 2, h);
Desen.DrawLine(Creion_g, x1 + w, y1, x1 + w / 2, h);
x1 = x1 + this.Width / nr_s;
}while (x1 <= this.Width);
}
private void button1_Click(object sender, EventArgs e)
{
int i = 0;
const int nr_z = 31;
int poz_x = 14; // pozitia curenta pe axa x
float w_r = 1, w_a = 3; // grosimea(in pixeli) a liniei rosii respectiv albastre
float[] consum = new float[nr_z]; // // vector ce pastreaza consumurile pe nr_z zile
float v_rand; // valoare aleatoare
float c_lun; // consum lunar
float c_med; // consum lunar mediu
System.Drawing.Graphics Desen;
Desen = this.CreateGraphics();
System.Drawing.Pen Creion_rosu;
Creion_rosu = new System.Drawing.Pen(System.Drawing.Color.Red, w_r);
System.Drawing.Pen Creion_albastru;
Creion_albastru = new System.Drawing.Pen(System.Drawing.Color.Blue, w_a);
System.Random n = new System.Random();
Desen.Clear(this.BackColor);
Desen.DrawLine(Creion_rosu, 6, 0, 6, this.Height - 40);
Desen.DrawLine(Creion_rosu, 6, this.Height - 40, this.Width - 20, this.Height - 40);
for (i = 0; i < nr_z; i++)
{
v_rand = n.Next(this.Height - 40);// se genereaza o valoare aleatoare
Desen.DrawLine(Creion_albastru, poz_x, this.Height - 40, poz_x, Height - 40 - v_rand);
poz_x += 14;
consum[i] = v_rand;
}
c_lun = 0;
for (i = 0; i < nr_z; i++)
{
c_lun = c_lun + consum[i];
}
//calculez si afisez consumul mediu
c_med = c_lun / nr_z;
Desen.DrawLine(Creion_rosu, 6, this.Height - 40 - c_med, this.Width - 20, this.Height - 40 - c_med);
}
private void button1_Click(object sender, EventArgs e)
{
System.Drawing.Graphics Desen;
Desen = this.CreateGraphics();
System.Drawing.Pen Creion_albastru;
System.Drawing.SolidBrush Pensula_albastra;
Pensula_albastra = new System.Drawing.SolidBrush(System.Drawing.Color.Blue);
Creion_albastru = new System.Drawing.Pen(System.Drawing.Color.Blue);
if (this.radioButton1.Checked)
{
Desen.DrawLine(Creion_albastru, 150, 50, 350, 100);
}
if (this.radioButton2.Checked)
{
Desen.Clear(this.BackColor);
Desen.DrawRectangle(Creion_albastru, 250, 50, 200, 100);
}
if (this.radioButton3.Checked)
{
Desen.Clear(this.BackColor);
Desen.DrawEllipse(Creion_albastru, 250, 150, 105, 105);
}
if (this.radioButton4.Checked)
{
Desen.Clear(this.BackColor);
Desen.DrawEllipse(Creion_albastru, 150, 50, 95, 200);
}
if (this.radioButton5.Checked)
{
Desen.Clear(this.BackColor);
Desen.FillRectangle(Pensula_albastra, 250, 50, 200, 100);
}
if (this.radioButton6.Checked)
{
Desen.Clear(this.BackColor);
Desen.FillEllipse(Pensula_albastra, 150, 50, 95, 200);
}
}