Border with an offset

[Claus Cyrny]

Hi all,

I'm having a hard time drawing a border around an image.
The image actually /does/ have a white border (width: 100 px)
already, but I would like IM to draw an additional small, grey line
inside this white area. How do I go about there? I'm actually a bit
unsure about the proper syntax.

TIA,

Claus

[Fred Weinhaus]

Post by Claus Cyrny
I'm having a hard time drawing a border around an image.
The image actually /does/ have a white border (width: 100 px)
already, but I would like IM to draw an additional small, grey line
inside this white area. How do I go about there? I'm actually a bit
unsure about the proper syntax.

There are two ways.

1) Find the coordinates in the upper left corner and lower right
corner within the white area from the dimensions of the image and the
width of the white border where you want to draw the gray border,
then just draw a rectangle with some strokewidth and stroke gray and
-fill none

convert image -fill none -stroke gray -strokewidth 10 -draw
"rectangle $x1,$y1 $x2,$y2" result

2) Use -shave to remove 50 pixels around the image, then use
-bordercolor gray -border XX to add your gray border, then use
-bordercolor white -border 50 to add another 50 pixels (or whatever
you want) of white around the gray border.

convert image -shave 50x50 -bordercolor gray -border 10 -bordercolor
white -border 50 result


Fred

[Claus Cyrny]

Hi Fred,

thanks, #1 worked.

Claus

Post by Fred Weinhaus

Post by Claus Cyrny
I'm having a hard time drawing a border around an image.
The image actually /does/ have a white border (width: 100 px)
already, but I would like IM to draw an additional small, grey line
inside this white area. How do I go about there? I'm actually a bit
unsure about the proper syntax.

There are two ways.
1) Find the coordinates in the upper left corner and lower right
corner within the white area from the dimensions of the image and the
width of the white border where you want to draw the gray border,
then just draw a rectangle with some strokewidth and stroke gray and
-fill none
convert image -fill none -stroke gray -strokewidth 10 -draw
"rectangle $x1,$y1 $x2,$y2" result

[Anthony Thyssen]

On Tue, 01 Jun 2010 22:27:57 +0200
magick-users-***@imagemagick.org wrote:
| Hi all,
|
| I'm having a hard time drawing a border around an image.
| The image actually /does/ have a white border (width: 100 px)
| already, but I would like IM to draw an additional small, grey line
| inside this white area. How do I go about there? I'm actually a bit
| unsure about the proper syntax.
|
You want to draw a border in an existing border.

Two solutions

Draw a rectangle

that may require some calculations however.

The other solution remove the existing border, add your new one
re-add the old border

-shave 100x100 \
-bordercolor LightGrey -border 1x1 \
-bordercolor white -border 99x99



Anthony Thyssen ( System Programmer ) <***@griffith.edu.au>
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What they really hate is lousy programmers.
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