Android Question How to cut an image with my fingers?

Matteo Granatiero

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I need to cut out an image with my fingers, and that the hatching appears and obviously the cut part will be darkened to make it clear that it will be cut out. Then with a button confirm the whole and the part cut out (darkened) will become transparent
 

Peter Simpson

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Peter Simpson

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You want to print the cut image, sorry I'm a bit lost in translation.

I would cut the image, save the image, then I would print the saved cut image. There's plenty of source code on the forum on how to print images, you can just adapt the code to suite your needs.
 
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Matteo Granatiero

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You want to print the cut image, sorry I'm a bit lost in translation.

I would cut the image, save the image, then I would print the saved cut image. There's plenty of source code on the forum on how to print images, you can just adapt the code to suite your needs.
I would like to cut out the original image of the fingers *, then drawing and saving what I have cut out in a certain path. The link you sent me invick has me use a control panel for cropping to my would just hand drawing
 

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Peter Simpson

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I've got you now, I thought that but then I changed my mind.

There may or may not be a library on here that can do that for you, you'll have to search for one just incase one is in here.

Sorry I can't point you to a library, maybe somebody else knows of one.
 
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klaus

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Is this, what you are looking for?

upload_2017-12-23_16-19-29.png
upload_2017-12-23_16-20-36.png


I updated the project to a new version, CropImageFreeHand, which saves the croped image with the original image size.
The previous project saved the image with the panel size.
 

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Matteo Granatiero

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I updated the project in post #9 to a new version which saves the croped image with the original image size.
The previous project saved the image with the panel size.
I have a little problem, every time I take a picture the panel that supports cropping resizes you know how can I solve?
 
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klaus

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The program flow:
- The width and height of the Panel are adapted to the aspect ratio of the bitmap.
- Draw with the finger the border for cropping.
- Press Crop, the image is cropped, the entire surface of the Panel is set to transparent and the bitmap is drawn again onto the Panel with the crop path.
- Press Save, the bitmap of the Panel Canvas is saved, the Panel dimensions are reduced to the outer dimensions of the cropped image, the cropped image is drawn onto the Panel. This you can see when the cropped image moves toward the upper left corner. The new Canvas image is saved. I did it that way to see what happens.
- Press Clear, to get the original Panel.

I don't understand exactly your question, but I suppose you are missing the last point in the program flow above.
 
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Matteo Granatiero

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The program flow:
- The width and height of the Panel are adapted to the aspect ratio of the bitmap.
- Draw with the finger the border for cropping.
- Press Crop, the image is cropped, the entire surface of the Panel is set to transparent and the bitmap is drawn again onto the Panel with the crop path.
- Press Save, the bitmap of the Panel Canvas is saved, the Panel dimensions are reduced to the outer dimensions of the cropped image, the cropped image is drawn onto the Panel. This you can see when the cropped image moves toward the upper left corner. The new Canvas image is saved. I did it that way to see what happens.
- Press Clear, to get the original Panel.

I don't understand exactly your question, but I suppose you are missing the last point in the program flow above.
how do I remove the panel at the height and width of the photo? maybe this is the problem
 
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klaus

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Sorry, I don't understand what you want to do?
What do you mean with remove the panel at the height and width of the photo?
You need to be more precise in your questions.
Do you want to remove the Panel?
If yes, you can remove it with pnlImage.RemoveView.
 
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Matteo Granatiero

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Sorry, I don't understand what you want to do?
What do you mean with remove the panel at the height and width of the photo?
You need to be more precise in your questions.
Do you want to remove the Panel?
If yes, you can remove it with pnlImage.RemoveView.
I want to remove this function : - The width and height of the Panel are adapted to the aspect ratio of the bitmap.
 
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