Re: Zoom in & out of an Image within a PictureBox
Okay i've been playing a little with this code and i found something very interesting..
the picturebox control's paintpicture method has just about what your looking for...
Quote:
Originally Posted by VB Books Online
Syntax
object.PaintPicture picture, x1, y1, width1, height1, x2, y2, width2, height2, opcode
The PaintPicture method syntax has these parts:
Part Description
object: Optional. An object expression that evaluates to an object in the Applies To list. If object is omitted, the Form object with the focus is assumed to be object.
Picture: Required. The source of the graphic to be drawn onto object. Must be the Picture property of a Form or PictureBox.
x1, y1: Required. Single-precision values indicating the destination coordinates (x-axis and y-axis) on object for picture to be drawn. The ScaleMode property of object determines the unit of measure used.
Width1: Optional. Single-precision value indicating the destination width of picture. The ScaleMode property of object determines the unit of measure used. If the destination width is larger or smaller than the source width (width2), picture is stretched or compressed to fit. If omitted, the source width is used.
Height1: Optional. Single-precision value indicating the destination height of picture. The ScaleMode property of object determines the unit of measure used. If the destination height is larger or smaller than the source height (height2), picture is stretched or compressed to fit. If omitted, the source height is used.
After all this it might not take that much to add this funtionability to a picturebox...
More when i'm done...
Gremmy..
Re: Zoom in & out of an Image within a PictureBox
Okay here it is..
I've used the Paintpicture method to do the Zoom on a Picturebox Control..
The zoom worked better than i expected.. (but going higher than about 5* is not recomended, It's a bit ikky up there..)
I have not completed adding in the code to make the Zoom work with the Crops.
So if you crop then zoom, the picture snaps to the original uncropped pic..
Will add this tomorrow, It's getting a bit late and i got a long work day ahead, so i need to get some sleep..
Gremmy...
----- Edit -----
Worked on it this morning and sorted it all out .. the zoom works with only picturebox's.. and is fully integrated with the crop application..
i used a lot of variables and UDT's to enable this.. basically the original pic stays in the background, untouched.. a dummy pic shows the zoom, gets the selection for crop and apply's it to the original pic in the correct proportion..
okay - enough of that...
IT WORKS... try it...
----- REEDIT -----
Newer file on later post...
1 Attachment(s)
Re: Zoom in & out of an Image within a PictureBox
Okay i worked a bit more on this (can you see i'm a little bored) ...
Some issue's sorted:
- Preview of crop is 1/2 Original and Not 1/2 Zoom anymore.
- Image sliders reacts with zoom corectly.
- Added a Selection box flasher routine (CPU stays at 0% while flashing :D)
Slowcoder. All this app is missing now is the acctual editing code ;)
Gremmy//...
Re: Zoom in & out of an Image within a PictureBox
Nice Work dude, nice! :thumb:
Re: Zoom in & out of an Image within a PictureBox
Yeah, agreed. Big man in graphics programming, are ya? :)
Re: Zoom in & out of an Image within a PictureBox
man .... this is really GREAT work .... :thumb: :wave:
btw , i suggest converting it into VB.Net ! :rolleyes: :thumb:
maybe ...if you have some time :blush:
that would be a more than great ...
do u think it would be easier ! :rolleyes:
Re: Zoom in & out of an Image within a PictureBox
Quote:
Originally Posted by momoaal
man .... this is really GREAT work .... :thumb: :wave:
btw , i suggest converting it into VB.Net ! :rolleyes: :thumb:
maybe ...if you have some time :blush:
that would be a more than great ...
do u think it would be easier ! :rolleyes:
You could have a look at these articles I wrote ( in VB.NET ) for all types of graphics manipulation. The last part ( part IV ) deals with zooming, rotating and cropping. I hope you enjoy them :)
Creating Your Own Drawing Application with Visual Basic .NET, Part 1
http://www.codeguru.com/csharp/.net/...le.php/c13205/
Creating Your Own Drawing Application with Visual Basic.NET, Part 2
http://www.codeguru.com/csharp/.net/...le.php/c13207/
Creating Your Own Drawing Application in Visual Basic.NET, Part 3
http://www.codeguru.com/vb/gen/vb_gr...le.php/c13611/
Creating Your Own Drawing Application in Visual Basic.NET, Part 4
http://www.codeguru.com/vb/gen/vb_gr...cle.php/c14007
Re: Zoom in & out of an Image within a PictureBox
thanks ... i'll check it ;)
Re: Zoom in & out of an Image within a PictureBox
Dear Sir,
this is really a great example for me. Really you save me.
Now i want to ask you a way to save that cropped image is there any way to save that Pic2's image ??
Thanks
Raghu
Re: Zoom in & out of an Image within a PictureBox
raghu_ktm ...
try it .. it's very easy ....
i tried it my self ... but i customed the save option according to my project ..
and it works fine .........
again ......... this is really .. really .... Masterpiece of work.... ;)
thanks again ......... :thumb:
Re: Zoom in & out of an Image within a PictureBox
You can simply add a button and add the SavePicture code into it..
Look at this thread on how to use the SavePicture method..
Gremmy...