How to get the image size?

Replies to This Discussion

Permalink Reply by Jes Tonsgaard on January 5, 2010 at 3:32am

You should reparameterize the input if possible... By doing that you will not need the manual reassignment of bounds...

Permalink Reply by David Rutten on January 5, 2010 at 3:42am

Hi Daniel,

currently not possible, sorry. I figured you'd only care about the physical dimensions of the image, not the pixel dimensions. It's easy enough to add a button that copies the image pixel dims into the physical dimensions text-fields. I'll try and include it into the next version.

--
David Rutten
david@mcneel.com
Poprad, Slovakia

Permalink Reply by David Rutten on January 5, 2010 at 4:09am

Hang on... what would be the best domain for a 800*600 image?

{0 To 800} & {0 To 600}

or

{1 To 800} & {1 To 600}

or

{0 To 799} & {0 To 599}

or

{-400 To 400} & {-300 To 300}

or...

--
David Rutten
david@mcneel.com
Poprad, Slovakia

Permalink Reply by David Rutten on January 5, 2010 at 4:12am

At any rate, added a button to the Image Sampler dialog:

--
David Rutten
david@mcneel.com
Poprad, Slovakia

Permalink Reply by Damien Alomar on January 5, 2010 at 7:58am

The second option, {1 to 800} & {1 to 600} would get my vote. The last two have the potential to be confusing (I think its important to have the last number be the dimension of the image). And if you're going to have the last number be the number of pixels, then it should start at one.

Permalink Reply by Suryansh Chandra on January 5, 2010 at 8:32am

Although I think the current {0-1} is quite versatile and easy to understand, if this were to implemented anyway, I'd go for {1 to 800} & {1 to 600} too.

Permalink Reply by Daniel Xiong on January 6, 2010 at 2:46am

Thanks to all replies:)
Maybe I didn't get myself clear. I mean if I input a 800*600 pixel image in the image sampler, how can I get the "800" and "600" in grasshopper?

Permalink Reply by David Rutten on January 6, 2010 at 3:27am

You can't, you'll need to examine the image with a VB component instead.

--
David Rutten
david@mcneel.com
Poprad, Slovakia

Permalink Reply by Cristóbal Iglesias Villarreal on May 3, 2012 at 7:30pm

Hi David.

Do you know where can I find the VB Script to get the image size ("600" and "800" from the example) ? Or perhaps could you share it?

Thanks

Permalink Reply by Mateusz Zwierzycki on May 3, 2012 at 8:37pm

Private Sub RunScript(ByVal x As String, ByVal y As Object, ByRef A As Object, ByRef B As Object)

Dim bitM As New System.Drawing.Bitmap(x)
A = bitM.Width
B = bitM.Height

End Sub

Remember first to change x input to string type and add B output... then paste the code

Permalink Reply by Cristóbal Iglesias Villarreal on May 3, 2012 at 9:33pm

Thanks a lot! Just what I needed.

Permalink Reply by Daniel Xiong on January 6, 2010 at 2:51am

By the way, I like {0 To 799} & {0 To 599}. This may make scripting less confusing.