Rotating Images Using WIA?

Apr 23, 2009

I am trying to allow the user to rotate a jpeg and I know that you can do it pixel by pixel but WIA 2.0 is supposed to have that functionality built into it... When I try to set the filter, exactly like they do in the example.

[Code]...

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VS 2010 Rotating An Images, No Rotateflip?

Jan 29, 2012

I need to rotate a picture box with about 35 degrees. now I tried this

PictureBox1.CreateGraphics.ResetTransform()
PictureBox1.CreateGraphics.TranslateTransform(64.0F, 64.0F)
PictureBox1.CreateGraphics.RotateTransform(35)
PictureBox1.CreateGraphics.DrawImage(sword, (-sword.Width 2), -sword.Height 2)
PictureBox1.Refresh()

But it doesn't seem to work Does someone know how to do this

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Shared PosArray(18) As PointF
Shared Increment As Double
'place pieces in rows [order 3-4-5-4-3]

[code]....

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So far:

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but this only turns at 90, 180, and 270 degree angles, also allowing flipping, but isn't exactly what I am after. I am trying to make the picture spin randomly at a variety of angles, but even if I can only get 45 degrees is better than just having 90 degree ones.

However I have only been able to find the above example in my searches.

I am trying to solve the issue that I posted about in the game programming forum about the animated dice. It seems that this is a very difficult thing to achieve, so I am going at this in an obscure way. My idea behind this is to have a timer set the images in a picture box according to random counters (which I have working). Then I plan on making the image rotate along with the timer (which is where I am at now). Then I plan on having the picture box move across the screen along with the timer (bouncing off the sides)...I think that this might be a bit better when trying to achieve an "authentic rolling dice" without actually having to do everything in 3d.

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Private Sub ellipse()
myBuffer.Graphics.Clear(Color.White)
myBuffer.Graphics.TranslateTransform(200, 400)
If plus_clicked Then

[code]....

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I had an assignment that I had done, which has been turned in, I was able to get it to graph, but it when it reaches the right side of the screen it drops off, when it is is adjusted using the velleman controls it jumps back up, hw would I fix this.

Here are the instructon for the assignment:

Write a program tat rads two analog inputs from a velleman board and plots the values on a rotating graph.  The number of value plotted horizontally should be specified in a text box.  Label the graphs vertical values in at least three places.  Print the current voltage reading for each input in it's own lable.  The graph should auto scale to fille the graph vertically and horizontally.

The two things that I couldn't get to work is the graph drops off the chart and I was unable to place the vertical values in three places.

Here is my code:

'Date: April 10, 2012
'Progammer:  Cathy Hjelm
'Progam:  wk8-1

[Code].....

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Does anyone know how to do this? Link to tutorial, codesnippets etc..

Ps. The goal is to make it smooth. Not turn 4 x 90 degrees.

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i use this process to rotate a rect of 4 borders as corners in wpf:

'find the center
Dim center As New Point(((topRight.Margin.Left - topLeft.Margin.Left) / 2) + topLeft.Margin.Left,
((topLeft.Margin.Top - bottomLeft.Margin.Top) / 2) + bottomLeft.Margin.Top)

[code].....

but i get very messy results?

edit1: i changed the getRotatedPoint function to doubles, and added a radian to degree conversion.

edit2: corrected radian conversion function.

edit3: corrected the center coords, but still some offsetting happens.

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Quote:

CODE:

I know I'll have to change the 'BackColor' bit but I don't know what to. Is there something that turns all text on the form one colour or do I have to do it label by label?

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Code:
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But rotated 30 degrees? Is this possible and i am not very good at math and all other

[code].....

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(Dim Mygraphics As graphics = e.graphics
mygrqaphics.Draw Rectangle(pens.color x1,x2,y1,y2)

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[Code]...

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[code]....

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