Flood Fill Extension. Fill area of an image with a color

[Juan_Antonio]

Hello friends,

• Fill an area of ​​an image with a color.

• You must copy the image to the ASD, in this example the image is copied from the asset to the ASD.

• Canvas.Up and Canvas.Touched are necessary.

• If you want to resize the image, use the "imageWidth" and "imageHeight" blocks.

• Better with a pen android phone

• Code based in:
  java - Android flood-fill algorithm - Stack Overflow with modifications.

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- App example.

p187C2i_extension_rellenar.aia (194.0 KB)

• You can download the extension of:
  Create Build Crear App Inventor Extensiones Extensions. Rellenar imagen colores. Flood Fill. (Updated 20220719)

• More extensions:
  App inventor español. Offline. Tutorial. Ejemplos. Instalación. Códigos. Juegos. Curso gratis de App inventor.

Regards,
Juan Antonio Villalpando.

[TIMAI2]

Great work Juan

[nandu_aeer]

Supubbbbbbbbb extension …

[Shivendra_Kr_Sahu]

Great work Juan

[Alexander]

Genius!!!

[Profe_Tecnoser]

Excelente explicación y muy bien aplicado, me gustaría saber si se podría aplicar a un dibujo libre realizado con color de pintura directamente sobre el lienzo?

[Juan_Antonio]

Draw in Canvas and then save picture.
Load that picture.

[Profe_Tecnoser]

Muchas gracias

[marco_tanzi]

Well done @Juan_Antonio.
Great extension.

[Profe_Tecnoser]

Buenas de nuevo Juan Antonio, quería consultarle otra duda con respecto a la extensión. ¿Se puede programar con la extensión de manera que se use como relleno el color de un pincel o de un selector de color, como en aplicaciones tipo Paint o Gimp?
Gracias de antemano

[Juan_Antonio]

Try with Canvas.GetPixelColor

[droid_droid]

thanks for your suggestions, i used drawshape. i need to refine, but it works.

[droid_droid]

hello Antonio,
it would be possible to know what method you took to color an area other than "drawshape". I'm trying to color a curve in a graph with a gradient towards transparent.
thanks for your reading.

[Juan_Antonio]

I used an extension withy Java.

Try La inundación de lona llena un área por Scott Ferguson.

[Ken]

@droid_droid

gradient

Gradient will be much more difficult

[Juan_Antonio]

Here an extension about gradient
http://kio4.com/appinventor/287_extension_gradiente_color.htm

[TTG_Studioz]

Hello
Is there anyway to not use the SD card file path?

I tried to use false but it didn't work.

[TIMAI2]

You need to give a file path to the image file you want to use with the floodfill extension. Why would you put "false" ?

[TTG_Studioz]

@TIMAI2

give a file path

And what file path do I need to add?

[TIMAI2]

@TTG_Studioz

And what file path do I need to add

You need to give a file path to the image file you want to use with the floodfill extension