Legacy ImageMagick Discussions Archive

This line: also leads to the broken image. In my case this only one line which is worked for me: in this case I see a yellow image.

Well.. I opened result file with the Photoshop but it can't be open with the standart macos viewer. I've just rebooted my computer but it still doesn't open. With the Photoshop I see only the first column painted with a black color and the other ones is painted with white color. I thought it should ...

#include <iostream> #include <Magick++.h> int main( int argc, char **argv ) { Magick::InitializeMagick( *argv ); Magick::Image testImg( Magick::Geometry( 500, 500 ), Magick::Color( "white" ) ); testImg.fx( "i/2" ); testImg.write( "images/test-img.png" ); return 0; } Bu...

But according to this article: https://www.imagemagick.org/Magick++/Pixels.html all should work fine but it doesn't

Ok! I forgot to put my IM's version here, sorry. I use: ImageMagick 7.0.5-2 Q16 x86_64 2017-03-11, macOS 10.12.3 Code: Magick::InitializeMagick( *argv ); Magick::Image testImg( Magick::Geometry( 500, 500 ), Magick::Color( "white" ) ); testImg.fx( "i/w" ); testImg.write( "ima...

According to this article: https://www.imagemagick.org/script/fx.php and also this article: https://www.imagemagick.org/Usage/transform/index.html#fx I started with the simplest code which using FX-feature of IM: Magick::Image testImg( Magick::Geometry( 500, 500 ), Magick::Color( QuantumRange, Quant...

This simple code: Magick::Image *imagePtr = new Magick::Image( "images/horse.jpg" ); Magick::Pixels view( *imagePtr ); Magick::Quantum *pixels = view.get( 0, 0, imagePtr->columns(), imagePtr->rows() ); unsigned int r = 255 * QuantumScale * ( *( pixels + 0 ) ); gives me segmentation fault. ...

Is there a way to fill a primitive with a gradient color?

snibgo wrote: ↑2017-04-19T15:47:59-07:00 The rotate primitive rotates subsequent shape primitives and text primitives about the origin of the main image.

Well, so can Magick++ rotate object around a specified anchor point of that object?
What's the origin of the main image? Is it the center of it?

Why the rectangle changes its place? Is this normal behaviour or some sort of a bug?

snibgo wrote: ↑2017-04-19T04:17:46-07:00 The horse has rotated once, by 75 degrees. That is what you asked for.

I can't see how much the rectangle has rotated.

But why the rectangle has the another place on the second image? I didn't change its coordinates...

snibgo wrote: ↑2017-04-19T03:05:30-07:00

Airon65 wrote:I get twice-rotated scene!

What does that mean? Please show the result.

It means that the system rotates it once and then seems it rotates it twice

The first code produces me next result:

The second one is:

If I do something like this: Magick::Image horseImg( "images/horse.jpg" ); horseImg.rotate( 75 ); Magick::Image testImg( Magick::Geometry( 500, 500 ), Magick::Color( QuantumRange, QuantumRange, QuantumRange, QuantumRange ) ); std::vector < Magick::Drawable > objArr; double dash_array_8stro...

My code is: Magick::Image testImg( Magick::Geometry( 500, 500 ), Magick::Color( QuantumRange, QuantumRange, QuantumRange, QuantumRange ) ); std::vector < Magick::Drawable > objArr; double dash_array_8stroke_8fill[] = { 8, 8, 0 }; objArr.push_back( Magick::DrawableStrokeDashArray( dash_array_8stroke_...