Intersection of rectangle and traced object
Hello,
from the png export of an mask file I vreated a path object by using the buitin tracing function. This works great.
I now have to show certain areas of the file only. For this I created a rectangle and used the "intersection" routine. This operation works in principle, but there are some side issues. The rectangle has the outer lines with 2mm, whereas the traced object has 0.282mm. The final object after the intersection has also 2mm line which is to coarse for showing certain details. Is this behaviour intented?
version 0.46devel from 22102007
Ciao, Frank
On Nov 11, 2007 8:11 PM, Frank Knappe <knappe@...2385...> wrote:
Hello,
from the png export of an mask file I vreated a path object by using the buitin tracing function. This works great.
I now have to show certain areas of the file only. For this I created a rectangle and used the "intersection" routine. This operation works in principle, but there are some side issues. The rectangle has the outer lines with 2mm, whereas the traced object has 0.282mm. The final object after the intersection has also 2mm line which is to coarse for showing certain details. Is this behaviour intented?
Their are a few things you can try. Clipping the object instead of using boolean ops. Tweak tool to thin lines were needed (devel builds). Maybe finer tracing settings or cropping to just parts you need to trace and tracing those.
I think you will be best off with clipping assuming it looks right before you did the intersection.
Joshua L. Blocher
version 0.46devel from 22102007
Ciao, Frank
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Quoting Joshua Blocher <verbalshadow@...155...>:
Their are a few things you can try. Clipping the object instead of using boolean ops. Tweak tool to thin lines were needed (devel builds). Maybe finer tracing settings or cropping to just parts you need to trace and tracing those.
I think you will be best off with clipping assuming it looks right before you did the intersection.
I was always thinking that the boolean ops were the clipping. Mainly this way be caused by the fact that I only have the german translated version installed and wasn't very carefully during the reading of the commands. The boolean ops were also working with the original bitmaps, so it seems that I can skip the tracing part.
I have however now discovered a new problem. How can I get a rectangle were I just want to have the outline?
What I tried: 1) rectangle but the filling set to no draw -> looks okay on the screen, but when I export to png I have a black filling 2) rectangle with a white filling but alpha set to zero -> also okay on screen but black filling in the png
What I'm doing wrong?
Best regards, Frank
On 11/11/07, Frank Knappe <knappe@...2385...> wrote:
Quoting Joshua Blocher <verbalshadow@...155...>:
Their are a few things you can try. Clipping the object instead of using boolean ops. Tweak tool to thin lines were needed (devel builds). Maybe finer tracing settings or cropping to just parts you need to trace and tracing those.
I think you will be best off with clipping assuming it looks right before you did the intersection.
I was always thinking that the boolean ops were the clipping. Mainly this way be caused by the fact that I only have the german translated version installed and wasn't very carefully during the reading of the commands. The boolean ops were also working with the original bitmaps, so it seems that I can skip the tracing part.
I have however now discovered a new problem. How can I get a rectangle were I just want to have the outline?
What I tried:
- rectangle but the filling set to no draw -> looks okay on the
screen, but when I export to png I have a black filling 2) rectangle with a white filling but alpha set to zero -> also okay on screen but black filling in the png
I would set the no paint option for the fill and set the stroke options It sounds like you have already done that. I think you found a bug. If possible can you checked a recent build to see if is still present? If it is then, would you file a bug report with the steps to recreate what happened and if possible a file that does it also.
Joshua L. Blocher verbalshadow
What I'm doing wrong?
Best regards, Frank
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Joshua Blocher