ImageData

Introduction

The ImageData class represents modifiable data that can be created from a Texture2D, or be used to construct a Texture2D. The ImageData class can be used to easily interact with the Texture2D class, and also provides a cross-platform way of creating and modifying textures.

Creating Textures

Add the following using statements:

using Texture2D = Microsoft.Xna.Framework.Graphics.Texture2D;
using Color = Microsoft.Xna.Framework.Graphics.Color;
using FlatRedBall.Graphics.Texture;

Add the following to Initialize after initializing FlatRedBall:

ImageData imageData = new ImageData(32, 32);

imageData.Fill(Color.Blue);

// let's plot some random pixels:

for (int i = 0; i < 50; i++)
{
    int randomX = FlatRedBallServices.Random.Next(
        imageData.Width);
    int randomY = FlatRedBallServices.Random.Next(
        imageData.Height);

    imageData.SetPixel(randomX, randomY, Color.Yellow);
}

// Create the texture
Texture2D texture2D = imageData.ToTexture2D();
// Give it a name.  Make sure this is unique!
texture2D.Name = "MyDynamicTexture";

// We will want to associate the created Texture2D with a
// ContentManager.  If you're in a Screen, use the Screen's
// ContentManager.  Here we'll just make one up:
FlatRedBallServices.AddDisposable(
    texture2D.Name,
    texture2D,
    "MyContentManager");

// Finally, let's use this Texture so we can actually see it
Sprite sprite = SpriteManager.AddSprite(texture2D);

// Set these numbers higher if using FSB or if you're in pixel
// pixel coordinates:
sprite.ScaleX = 10;
sprite.ScaleY = 10;

ImageDataToTexture2D.png

Note: This code uses the Color and Texture2D classes. Remember, if you are using a version of FlatRedBall other than FlatRedBall XNA, your using statements will be different. For more information, see:

• Microsoft.Xna.Framework.Graphics.Texture2D

• Microsoft.Xna.Framework.Graphics.Color

Additional Information

• Fog of war using ImageData with source and in-browser FSB demo.

ImageData Members

• FlatRedBall.Graphics.Texture.ImageData.ApplyColorOperation

• FlatRedBall.Graphics.Texture.ImageData.Fill

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