Geometry

Note

This page contains code examples of the Geometry functions.

Simple Usage Examples

Point At Origin

Note

The example(s) below are using the Point At Origin function with the following signatures:

Signatures

C++

point_2d point_at_origin()

C#

public static Point2D Geometry.PointAtOrigin();
public static Point2D SplashKit.PointAtOrigin();

Python

def point_at_origin():

Pascal

function PointAtOrigin(): Point2D

Red Dot At Origin

The following code shows an example of using Point At Origin to show the location of the origin point with a small red dot.

C++

#include "splashkit.h"

int main()
{
    open_window("Point At Origin", 800, 600);

    // Create a point at origin
    point_2d point = point_at_origin();

    // Create red circle at the origin point
    clear_screen();
    fill_circle(COLOR_RED, point.x, point.y, 4);
    refresh_screen();

    delay(4000);
    close_all_windows();
}

C#

Top-level Statements

using SplashKitSDK;
using static SplashKitSDK.SplashKit;

OpenWindow("Point At Origin", 800, 600);

// Create a point at origin
Point2D point = PointAtOrigin();

// Create red circle at the origin point
ClearScreen();
FillCircle(ColorRed(), point.X, point.Y, 4);
RefreshScreen();

Delay(4000);
CloseAllWindows();

Object-Oriented

using SplashKitSDK;

namespace PointAtOriginExample
{
    public class Program
    {
        public static void Main()
        {
            SplashKit.OpenWindow("Point At Origin", 800, 600);

            // Create a point at origin
            Point2D point = SplashKit.PointAtOrigin();

            // Create red circle at the origin point
            SplashKit.ClearScreen();
            SplashKit.FillCircle(Color.Red, point.X, point.Y, 4);
            SplashKit.RefreshScreen();

            SplashKit.Delay(4000);
            SplashKit.CloseAllWindows();
        }
    }
}

Python

from splashkit import *

open_window("Point At Origin", 800, 600)

# Create a point at origin
point = point_at_origin()

# Create red circle at the origin point
clear_screen_to_white()
fill_circle(color_red(), point.x, point.y, 4)
refresh_screen()

delay(4000)
close_all_windows()

Output:

---

Hot Summer Sun

The following code shows an example of using Point At Origin to create a “sun” at the origin point.

C++

#include "splashkit.h"

int main()
{
    open_window("Point At Origin", 800, 600);

    // Create a point at origin
    point_2d point = point_at_origin();

    // Create "sun" at the origin point
    clear_screen();
    for (int i = 200; i > 10; i--)
    {
        fill_circle(rgb_color(255, i + 50, i % 30), point.x, point.y, i);
    }
    refresh_screen();

    delay(4000);
    close_all_windows();
}

C#

Top-level Statements

using SplashKitSDK;
using static SplashKitSDK.SplashKit;

OpenWindow("Point At Origin", 800, 600);

// Create a point at origin
Point2D point = PointAtOrigin();

// Create "sun" at the origin point
ClearScreen();
for (int i = 200; i > 10; i--)
{
    FillCircle(RGBColor(255, i + 50, i % 30), point.X, point.Y, i);
}
RefreshScreen();

Delay(4000);
CloseAllWindows();

Object-Oriented

using SplashKitSDK;

namespace PointAtOriginExample
{
    public class Program
    {
        public static void Main()
        {
            SplashKit.OpenWindow("Point At Origin", 800, 600);

            // Create a point at origin
            Point2D point = SplashKit.PointAtOrigin();

            // Create "sun" at the origin point
            SplashKit.ClearScreen();
            for (int i = 200; i > 10; i--)
            {
                SplashKit.FillCircle(SplashKit.RGBColor(255, i + 50, i % 30), point.X, point.Y, i);
            }
            SplashKit.RefreshScreen();

            SplashKit.Delay(4000);
            SplashKit.CloseAllWindows();
        }
    }
}

Python

from splashkit import *

open_window("Point At Origin", 800, 600)

# Create a point at origin
point = point_at_origin()

# Create "sun" at the origin point
clear_screen(color_white())
for i in range(200, 10, -1):
    fill_circle(rgb_color(255, i + 50, i % 30), point.x, point.y, i)
refresh_screen()

delay(4000)
close_all_windows()

Output:

---

Point To String

Note

The example(s) below are using the Point To String function with the following signatures:

Signatures

C++

string point_to_string(const point_2d &pt)

C#

public static string Geometry.PointToString(Point2D pt);
public static string SplashKit.PointToString(Point2D pt);

Python

def point_to_string(pt):

Pascal

function PointToString(const pt: Point2D): String

Mouse Click Location

The following code shows examples of using Point To String to show the coordinates of a mouse click.

C++

#include "splashkit.h"

int main()
{
    string mouse_position_text = "Click to see coordinates...";

    open_window("Mouse Clicked Location", 600, 600);

    while (!quit_requested())
    {
        process_events();

        // Check for mouse click
        if (mouse_clicked(LEFT_BUTTON))
        {
            mouse_position_text = "Mouse clicked at " + point_to_string(mouse_position());
        }

        // Print mouse position to screen
        clear_screen(COLOR_GHOST_WHITE);
        draw_text(mouse_position_text, COLOR_BLACK, 100, 300);
        refresh_screen();
    }

    close_all_windows();
    return 0;
}

C#

Top-level Statements

using SplashKitSDK;
using static SplashKitSDK.SplashKit;

string mousePositionText = "Click to see coordinates...";

OpenWindow("Mouse Clicked Location", 600, 600);

while (!QuitRequested())
{
    ProcessEvents();

    // Check for mouse click
    if (MouseClicked(MouseButton.LeftButton))
    {
        mousePositionText = "Mouse clicked at " + PointToString(MousePosition());
    }

    // Print mouse position to screen
    ClearScreen(ColorGhostWhite());
    DrawText(mousePositionText, ColorBlack(), 100, 300);
    RefreshScreen();
}

CloseAllWindows();

Object-Oriented

using SplashKitSDK;

namespace PointToStringExample
{
    public class Program
    {
        public static void Main()
        {
            string mousePositionText = "Click to see coordinates...";

            Window window = new Window("Mouse Clicked Location", 600, 600);

            while (!SplashKit.QuitRequested())
            {
                SplashKit.ProcessEvents();

                // Check for mouse click
                if (SplashKit.MouseClicked(MouseButton.LeftButton))
                {
                    mousePositionText = "Mouse clicked at " + SplashKit.PointToString(SplashKit.MousePosition());
                }

                // Print mouse position to screen
                window.Clear(Color.GhostWhite);
                window.DrawText(mousePositionText, Color.Black, 100, 300);
                window.Refresh();
            }

            window.Close();
        }
    }
}

Python

from splashkit import *

mouse_position_text = "Click to see coordinates..."

open_window("Mouse Clicked Location", 600, 600)

while not quit_requested():
    process_events()

    # check for mouse click
    if mouse_clicked(MouseButton.left_button):
        mouse_position_text = "Mouse clicked at " + point_to_string(mouse_position())

    # Print mouse position to screen
    clear_screen(color_ghost_white())
    draw_text_no_font_no_size(mouse_position_text, color_black(), 100, 300)
    refresh_screen()

close_all_windows()

Output:

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